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docs: Remove old texinfo sources
We can now delete the old .texi files, which we have been keeping in the tree as a parallel set of documentation to the new rST sources. The only remaining use of Texinfo is the autogenerated manuals and HTML documents created from the QAPI JSON doc comments. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Kashyap Chamarthy <kchamart@redhat.com> Tested-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20200228153619.9906-33-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell
+1
-4
@@ -215,7 +215,6 @@ S: Maintained
|
||||
F: target/mips/
|
||||
F: default-configs/*mips*
|
||||
F: disas/*mips*
|
||||
F: docs/system/cpu-models-mips.texi
|
||||
F: docs/system/cpu-models-mips.rst.inc
|
||||
F: hw/intc/mips_gic.c
|
||||
F: hw/mips/
|
||||
@@ -321,7 +320,6 @@ F: tests/tcg/i386/
|
||||
F: tests/tcg/x86_64/
|
||||
F: hw/i386/
|
||||
F: disas/i386.c
|
||||
F: docs/system/cpu-models-x86.texi
|
||||
F: docs/system/cpu-models-x86.rst.inc
|
||||
T: git https://github.com/ehabkost/qemu.git x86-next
|
||||
|
||||
@@ -2236,7 +2234,7 @@ M: Stefan Hajnoczi <stefanha@redhat.com>
|
||||
S: Maintained
|
||||
F: trace/
|
||||
F: trace-events
|
||||
F: docs/system/qemu-option-trace.texi
|
||||
F: docs/qemu-option-trace.rst.inc
|
||||
F: scripts/tracetool.py
|
||||
F: scripts/tracetool/
|
||||
F: scripts/qemu-trace-stap*
|
||||
@@ -2806,7 +2804,6 @@ F: contrib/gitdm/*
|
||||
|
||||
Incompatible changes
|
||||
R: libvir-list@redhat.com
|
||||
F: docs/system/deprecated.texi
|
||||
F: docs/system/deprecated.rst
|
||||
|
||||
Build System
|
||||
|
||||
@@ -1,67 +0,0 @@
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||||
@node Supported build platforms
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||||
@appendix Supported build platforms
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||||
|
||||
QEMU aims to support building and executing on multiple host OS platforms.
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||||
This appendix outlines which platforms are the major build targets. These
|
||||
platforms are used as the basis for deciding upon the minimum required
|
||||
versions of 3rd party software QEMU depends on. The supported platforms
|
||||
are the targets for automated testing performed by the project when patches
|
||||
are submitted for review, and tested before and after merge.
|
||||
|
||||
If a platform is not listed here, it does not imply that QEMU won't work.
|
||||
If an unlisted platform has comparable software versions to a listed platform,
|
||||
there is every expectation that it will work. Bug reports are welcome for
|
||||
problems encountered on unlisted platforms unless they are clearly older
|
||||
vintage than what is described here.
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||||
|
||||
Note that when considering software versions shipped in distros as support
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||||
targets, QEMU considers only the version number, and assumes the features in
|
||||
that distro match the upstream release with the same version. In other words,
|
||||
if a distro backports extra features to the software in their distro, QEMU
|
||||
upstream code will not add explicit support for those backports, unless the
|
||||
feature is auto-detectable in a manner that works for the upstream releases
|
||||
too.
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||||
|
||||
The Repology site @url{https://repology.org} is a useful resource to identify
|
||||
currently shipped versions of software in various operating systems, though
|
||||
it does not cover all distros listed below.
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||||
|
||||
@section Linux OS
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||||
|
||||
For distributions with frequent, short-lifetime releases, the project will
|
||||
aim to support all versions that are not end of life by their respective
|
||||
vendors. For the purposes of identifying supported software versions, the
|
||||
project will look at Fedora, Ubuntu, and openSUSE distros. Other short-
|
||||
lifetime distros will be assumed to ship similar software versions.
|
||||
|
||||
For distributions with long-lifetime releases, the project will aim to support
|
||||
the most recent major version at all times. Support for the previous major
|
||||
version will be dropped 2 years after the new major version is released,
|
||||
or when it reaches ``end of life''. For the purposes of identifying
|
||||
supported software versions, the project will look at RHEL, Debian,
|
||||
Ubuntu LTS, and SLES distros. Other long-lifetime distros will be
|
||||
assumed to ship similar software versions.
|
||||
|
||||
@section Windows
|
||||
|
||||
The project supports building with current versions of the MinGW toolchain,
|
||||
hosted on Linux.
|
||||
|
||||
@section macOS
|
||||
|
||||
The project supports building with the two most recent versions of macOS, with
|
||||
the current homebrew package set available.
|
||||
|
||||
@section FreeBSD
|
||||
|
||||
The project aims to support the all the versions which are not end of life.
|
||||
|
||||
@section NetBSD
|
||||
|
||||
The project aims to support the most recent major version at all times. Support
|
||||
for the previous major version will be dropped 2 years after the new major
|
||||
version is released.
|
||||
|
||||
@section OpenBSD
|
||||
|
||||
The project aims to support the all the versions which are not end of life.
|
||||
@@ -1,157 +0,0 @@
|
||||
@node recommendations_cpu_models_MIPS
|
||||
@section Supported CPU model configurations on MIPS hosts
|
||||
|
||||
QEMU supports variety of MIPS CPU models:
|
||||
|
||||
@menu
|
||||
* cpu_models_MIPS32:: Supported CPU models for MIPS32 hosts
|
||||
* cpu_models_MIPS64:: Supported CPU models for MIPS64 hosts
|
||||
* cpu_models_nanoMIPS:: Supported CPU models for nanoMIPS hosts
|
||||
* preferred_cpu_models_MIPS:: Preferred CPU models for MIPS hosts
|
||||
@end menu
|
||||
|
||||
@node cpu_models_MIPS32
|
||||
@subsection Supported CPU models for MIPS32 hosts
|
||||
|
||||
The following CPU models are supported for use on MIPS32 hosts. Administrators /
|
||||
applications are recommended to use the CPU model that matches the generation
|
||||
of the host CPUs in use. In a deployment with a mixture of host CPU models
|
||||
between machines, if live migration compatibility is required, use the newest
|
||||
CPU model that is compatible across all desired hosts.
|
||||
|
||||
@table @option
|
||||
@item @code{mips32r6-generic}
|
||||
|
||||
MIPS32 Processor (Release 6, 2015)
|
||||
|
||||
|
||||
@item @code{P5600}
|
||||
|
||||
MIPS32 Processor (P5600, 2014)
|
||||
|
||||
|
||||
@item @code{M14K}
|
||||
@item @code{M14Kc}
|
||||
|
||||
MIPS32 Processor (M14K, 2009)
|
||||
|
||||
|
||||
@item @code{74Kf}
|
||||
|
||||
MIPS32 Processor (74K, 2007)
|
||||
|
||||
|
||||
@item @code{34Kf}
|
||||
|
||||
MIPS32 Processor (34K, 2006)
|
||||
|
||||
|
||||
@item @code{24Kc}
|
||||
@item @code{24KEc}
|
||||
@item @code{24Kf}
|
||||
|
||||
MIPS32 Processor (24K, 2003)
|
||||
|
||||
|
||||
@item @code{4Kc}
|
||||
@item @code{4Km}
|
||||
@item @code{4KEcR1}
|
||||
@item @code{4KEmR1}
|
||||
@item @code{4KEc}
|
||||
@item @code{4KEm}
|
||||
|
||||
MIPS32 Processor (4K, 1999)
|
||||
@end table
|
||||
|
||||
@node cpu_models_MIPS64
|
||||
@subsection Supported CPU models for MIPS64 hosts
|
||||
|
||||
The following CPU models are supported for use on MIPS64 hosts. Administrators /
|
||||
applications are recommended to use the CPU model that matches the generation
|
||||
of the host CPUs in use. In a deployment with a mixture of host CPU models
|
||||
between machines, if live migration compatibility is required, use the newest
|
||||
CPU model that is compatible across all desired hosts.
|
||||
|
||||
@table @option
|
||||
@item @code{I6400}
|
||||
|
||||
MIPS64 Processor (Release 6, 2014)
|
||||
|
||||
|
||||
@item @code{Loongson-2F}
|
||||
|
||||
MIPS64 Processor (Loongson 2, 2008)
|
||||
|
||||
|
||||
@item @code{Loongson-2E}
|
||||
|
||||
MIPS64 Processor (Loongson 2, 2006)
|
||||
|
||||
|
||||
@item @code{mips64dspr2}
|
||||
|
||||
MIPS64 Processor (Release 2, 2006)
|
||||
|
||||
|
||||
@item @code{MIPS64R2-generic}
|
||||
@item @code{5KEc}
|
||||
@item @code{5KEf}
|
||||
|
||||
MIPS64 Processor (Release 2, 2002)
|
||||
|
||||
|
||||
@item @code{20Kc}
|
||||
|
||||
MIPS64 Processor (20K, 2000)
|
||||
|
||||
|
||||
@item @code{5Kc}
|
||||
@item @code{5Kf}
|
||||
|
||||
MIPS64 Processor (5K, 1999)
|
||||
|
||||
|
||||
@item @code{VR5432}
|
||||
|
||||
MIPS64 Processor (VR, 1998)
|
||||
|
||||
|
||||
@item @code{R4000}
|
||||
|
||||
MIPS64 Processor (MIPS III, 1991)
|
||||
@end table
|
||||
|
||||
@node cpu_models_nanoMIPS
|
||||
@subsection Supported CPU models for nanoMIPS hosts
|
||||
|
||||
The following CPU models are supported for use on nanoMIPS hosts. Administrators /
|
||||
applications are recommended to use the CPU model that matches the generation
|
||||
of the host CPUs in use. In a deployment with a mixture of host CPU models
|
||||
between machines, if live migration compatibility is required, use the newest
|
||||
CPU model that is compatible across all desired hosts.
|
||||
|
||||
@table @option
|
||||
@item @code{I7200}
|
||||
|
||||
MIPS I7200 (nanoMIPS, 2018)
|
||||
|
||||
@end table
|
||||
|
||||
@node preferred_cpu_models_MIPS
|
||||
@subsection Preferred CPU models for MIPS hosts
|
||||
|
||||
The following CPU models are preferred for use on different MIPS hosts:
|
||||
|
||||
@table @option
|
||||
@item @code{MIPS III}
|
||||
R4000
|
||||
|
||||
@item @code{MIPS32R2}
|
||||
34Kf
|
||||
|
||||
@item @code{MIPS64R6}
|
||||
I6400
|
||||
|
||||
@item @code{nanoMIPS}
|
||||
I7200
|
||||
@end table
|
||||
@@ -1,482 +0,0 @@
|
||||
@node cpu_models_x86
|
||||
@section Recommendations for KVM CPU model configuration on x86 hosts
|
||||
|
||||
QEMU / KVM virtualization supports two ways to configure CPU models
|
||||
|
||||
@table @option
|
||||
|
||||
@item Host passthrough
|
||||
|
||||
This passes the host CPU model features, model, stepping, exactly to the
|
||||
guest. Note that KVM may filter out some host CPU model features if they
|
||||
cannot be supported with virtualization. Live migration is unsafe when
|
||||
this mode is used as libvirt / QEMU cannot guarantee a stable CPU is
|
||||
exposed to the guest across hosts. This is the recommended CPU to use,
|
||||
provided live migration is not required.
|
||||
|
||||
@item Named model
|
||||
|
||||
QEMU comes with a number of predefined named CPU models, that typically
|
||||
refer to specific generations of hardware released by Intel and AMD.
|
||||
These allow the guest VMs to have a degree of isolation from the host CPU,
|
||||
allowing greater flexibility in live migrating between hosts with differing
|
||||
hardware.
|
||||
@end table
|
||||
|
||||
In both cases, it is possible to optionally add or remove individual CPU
|
||||
features, to alter what is presented to the guest by default.
|
||||
|
||||
Libvirt supports a third way to configure CPU models known as "Host model".
|
||||
This uses the QEMU "Named model" feature, automatically picking a CPU model
|
||||
that is similar the host CPU, and then adding extra features to approximate
|
||||
the host model as closely as possible. This does not guarantee the CPU family,
|
||||
stepping, etc will precisely match the host CPU, as they would with "Host
|
||||
passthrough", but gives much of the benefit of passthrough, while making
|
||||
live migration safe.
|
||||
|
||||
The information that follows provides recommendations for configuring
|
||||
CPU models on x86 hosts. The goals are to maximise performance, while
|
||||
protecting guest OS against various CPU hardware flaws, and optionally
|
||||
enabling live migration between hosts with heterogeneous CPU models.
|
||||
|
||||
@menu
|
||||
* preferred_cpu_models_intel_x86:: Preferred CPU models for Intel x86 hosts
|
||||
* important_cpu_features_intel_x86:: Important CPU features for Intel x86 hosts
|
||||
* preferred_cpu_models_amd_x86:: Preferred CPU models for AMD x86 hosts
|
||||
* important_cpu_features_amd_x86:: Important CPU features for AMD x86 hosts
|
||||
* default_cpu_models_x86:: Default x86 CPU models
|
||||
* other_non_recommended_cpu_models_x86:: Other non-recommended x86 CPUs
|
||||
* cpu_model_syntax_apps:: Syntax for configuring CPU models
|
||||
@end menu
|
||||
|
||||
@node preferred_cpu_models_intel_x86
|
||||
@subsection Preferred CPU models for Intel x86 hosts
|
||||
|
||||
The following CPU models are preferred for use on Intel hosts. Administrators /
|
||||
applications are recommended to use the CPU model that matches the generation
|
||||
of the host CPUs in use. In a deployment with a mixture of host CPU models
|
||||
between machines, if live migration compatibility is required, use the newest
|
||||
CPU model that is compatible across all desired hosts.
|
||||
|
||||
@table @option
|
||||
@item @code{Skylake-Server}
|
||||
@item @code{Skylake-Server-IBRS}
|
||||
|
||||
Intel Xeon Processor (Skylake, 2016)
|
||||
|
||||
|
||||
@item @code{Skylake-Client}
|
||||
@item @code{Skylake-Client-IBRS}
|
||||
|
||||
Intel Core Processor (Skylake, 2015)
|
||||
|
||||
|
||||
@item @code{Broadwell}
|
||||
@item @code{Broadwell-IBRS}
|
||||
@item @code{Broadwell-noTSX}
|
||||
@item @code{Broadwell-noTSX-IBRS}
|
||||
|
||||
Intel Core Processor (Broadwell, 2014)
|
||||
|
||||
|
||||
@item @code{Haswell}
|
||||
@item @code{Haswell-IBRS}
|
||||
@item @code{Haswell-noTSX}
|
||||
@item @code{Haswell-noTSX-IBRS}
|
||||
|
||||
Intel Core Processor (Haswell, 2013)
|
||||
|
||||
|
||||
@item @code{IvyBridge}
|
||||
@item @code{IvyBridge-IBRS}
|
||||
|
||||
Intel Xeon E3-12xx v2 (Ivy Bridge, 2012)
|
||||
|
||||
|
||||
@item @code{SandyBridge}
|
||||
@item @code{SandyBridge-IBRS}
|
||||
|
||||
Intel Xeon E312xx (Sandy Bridge, 2011)
|
||||
|
||||
|
||||
@item @code{Westmere}
|
||||
@item @code{Westmere-IBRS}
|
||||
|
||||
Westmere E56xx/L56xx/X56xx (Nehalem-C, 2010)
|
||||
|
||||
|
||||
@item @code{Nehalem}
|
||||
@item @code{Nehalem-IBRS}
|
||||
|
||||
Intel Core i7 9xx (Nehalem Class Core i7, 2008)
|
||||
|
||||
|
||||
@item @code{Penryn}
|
||||
|
||||
Intel Core 2 Duo P9xxx (Penryn Class Core 2, 2007)
|
||||
|
||||
|
||||
@item @code{Conroe}
|
||||
|
||||
Intel Celeron_4x0 (Conroe/Merom Class Core 2, 2006)
|
||||
|
||||
@end table
|
||||
|
||||
@node important_cpu_features_intel_x86
|
||||
@subsection Important CPU features for Intel x86 hosts
|
||||
|
||||
The following are important CPU features that should be used on Intel x86
|
||||
hosts, when available in the host CPU. Some of them require explicit
|
||||
configuration to enable, as they are not included by default in some, or all,
|
||||
of the named CPU models listed above. In general all of these features are
|
||||
included if using "Host passthrough" or "Host model".
|
||||
|
||||
|
||||
@table @option
|
||||
|
||||
@item @code{pcid}
|
||||
|
||||
Recommended to mitigate the cost of the Meltdown (CVE-2017-5754) fix
|
||||
|
||||
Included by default in Haswell, Broadwell & Skylake Intel CPU models.
|
||||
|
||||
Should be explicitly turned on for Westmere, SandyBridge, and IvyBridge
|
||||
Intel CPU models. Note that some desktop/mobile Westmere CPUs cannot
|
||||
support this feature.
|
||||
|
||||
|
||||
@item @code{spec-ctrl}
|
||||
|
||||
Required to enable the Spectre v2 (CVE-2017-5715) fix.
|
||||
|
||||
Included by default in Intel CPU models with -IBRS suffix.
|
||||
|
||||
Must be explicitly turned on for Intel CPU models without -IBRS suffix.
|
||||
|
||||
Requires the host CPU microcode to support this feature before it
|
||||
can be used for guest CPUs.
|
||||
|
||||
|
||||
@item @code{stibp}
|
||||
|
||||
Required to enable stronger Spectre v2 (CVE-2017-5715) fixes in some
|
||||
operating systems.
|
||||
|
||||
Must be explicitly turned on for all Intel CPU models.
|
||||
|
||||
Requires the host CPU microcode to support this feature before it
|
||||
can be used for guest CPUs.
|
||||
|
||||
|
||||
@item @code{ssbd}
|
||||
|
||||
Required to enable the CVE-2018-3639 fix
|
||||
|
||||
Not included by default in any Intel CPU model.
|
||||
|
||||
Must be explicitly turned on for all Intel CPU models.
|
||||
|
||||
Requires the host CPU microcode to support this feature before it
|
||||
can be used for guest CPUs.
|
||||
|
||||
|
||||
@item @code{pdpe1gb}
|
||||
|
||||
Recommended to allow guest OS to use 1GB size pages
|
||||
|
||||
Not included by default in any Intel CPU model.
|
||||
|
||||
Should be explicitly turned on for all Intel CPU models.
|
||||
|
||||
Note that not all CPU hardware will support this feature.
|
||||
|
||||
@item @code{md-clear}
|
||||
|
||||
Required to confirm the MDS (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130,
|
||||
CVE-2019-11091) fixes.
|
||||
|
||||
Not included by default in any Intel CPU model.
|
||||
|
||||
Must be explicitly turned on for all Intel CPU models.
|
||||
|
||||
Requires the host CPU microcode to support this feature before it
|
||||
can be used for guest CPUs.
|
||||
@end table
|
||||
|
||||
|
||||
@node preferred_cpu_models_amd_x86
|
||||
@subsection Preferred CPU models for AMD x86 hosts
|
||||
|
||||
The following CPU models are preferred for use on Intel hosts. Administrators /
|
||||
applications are recommended to use the CPU model that matches the generation
|
||||
of the host CPUs in use. In a deployment with a mixture of host CPU models
|
||||
between machines, if live migration compatibility is required, use the newest
|
||||
CPU model that is compatible across all desired hosts.
|
||||
|
||||
@table @option
|
||||
|
||||
@item @code{EPYC}
|
||||
@item @code{EPYC-IBPB}
|
||||
|
||||
AMD EPYC Processor (2017)
|
||||
|
||||
|
||||
@item @code{Opteron_G5}
|
||||
|
||||
AMD Opteron 63xx class CPU (2012)
|
||||
|
||||
|
||||
@item @code{Opteron_G4}
|
||||
|
||||
AMD Opteron 62xx class CPU (2011)
|
||||
|
||||
|
||||
@item @code{Opteron_G3}
|
||||
|
||||
AMD Opteron 23xx (Gen 3 Class Opteron, 2009)
|
||||
|
||||
|
||||
@item @code{Opteron_G2}
|
||||
|
||||
AMD Opteron 22xx (Gen 2 Class Opteron, 2006)
|
||||
|
||||
|
||||
@item @code{Opteron_G1}
|
||||
|
||||
AMD Opteron 240 (Gen 1 Class Opteron, 2004)
|
||||
@end table
|
||||
|
||||
@node important_cpu_features_amd_x86
|
||||
@subsection Important CPU features for AMD x86 hosts
|
||||
|
||||
The following are important CPU features that should be used on AMD x86
|
||||
hosts, when available in the host CPU. Some of them require explicit
|
||||
configuration to enable, as they are not included by default in some, or all,
|
||||
of the named CPU models listed above. In general all of these features are
|
||||
included if using "Host passthrough" or "Host model".
|
||||
|
||||
|
||||
@table @option
|
||||
|
||||
@item @code{ibpb}
|
||||
|
||||
Required to enable the Spectre v2 (CVE-2017-5715) fix.
|
||||
|
||||
Included by default in AMD CPU models with -IBPB suffix.
|
||||
|
||||
Must be explicitly turned on for AMD CPU models without -IBPB suffix.
|
||||
|
||||
Requires the host CPU microcode to support this feature before it
|
||||
can be used for guest CPUs.
|
||||
|
||||
|
||||
@item @code{stibp}
|
||||
|
||||
Required to enable stronger Spectre v2 (CVE-2017-5715) fixes in some
|
||||
operating systems.
|
||||
|
||||
Must be explicitly turned on for all AMD CPU models.
|
||||
|
||||
Requires the host CPU microcode to support this feature before it
|
||||
can be used for guest CPUs.
|
||||
|
||||
|
||||
@item @code{virt-ssbd}
|
||||
|
||||
Required to enable the CVE-2018-3639 fix
|
||||
|
||||
Not included by default in any AMD CPU model.
|
||||
|
||||
Must be explicitly turned on for all AMD CPU models.
|
||||
|
||||
This should be provided to guests, even if amd-ssbd is also
|
||||
provided, for maximum guest compatibility.
|
||||
|
||||
Note for some QEMU / libvirt versions, this must be force enabled
|
||||
when when using "Host model", because this is a virtual feature
|
||||
that doesn't exist in the physical host CPUs.
|
||||
|
||||
|
||||
@item @code{amd-ssbd}
|
||||
|
||||
Required to enable the CVE-2018-3639 fix
|
||||
|
||||
Not included by default in any AMD CPU model.
|
||||
|
||||
Must be explicitly turned on for all AMD CPU models.
|
||||
|
||||
This provides higher performance than virt-ssbd so should be
|
||||
exposed to guests whenever available in the host. virt-ssbd
|
||||
should none the less also be exposed for maximum guest
|
||||
compatibility as some kernels only know about virt-ssbd.
|
||||
|
||||
|
||||
@item @code{amd-no-ssb}
|
||||
|
||||
Recommended to indicate the host is not vulnerable CVE-2018-3639
|
||||
|
||||
Not included by default in any AMD CPU model.
|
||||
|
||||
Future hardware generations of CPU will not be vulnerable to
|
||||
CVE-2018-3639, and thus the guest should be told not to enable
|
||||
its mitigations, by exposing amd-no-ssb. This is mutually
|
||||
exclusive with virt-ssbd and amd-ssbd.
|
||||
|
||||
|
||||
@item @code{pdpe1gb}
|
||||
|
||||
Recommended to allow guest OS to use 1GB size pages
|
||||
|
||||
Not included by default in any AMD CPU model.
|
||||
|
||||
Should be explicitly turned on for all AMD CPU models.
|
||||
|
||||
Note that not all CPU hardware will support this feature.
|
||||
@end table
|
||||
|
||||
|
||||
@node default_cpu_models_x86
|
||||
@subsection Default x86 CPU models
|
||||
|
||||
The default QEMU CPU models are designed such that they can run on all hosts.
|
||||
If an application does not wish to do perform any host compatibility checks
|
||||
before launching guests, the default is guaranteed to work.
|
||||
|
||||
The default CPU models will, however, leave the guest OS vulnerable to various
|
||||
CPU hardware flaws, so their use is strongly discouraged. Applications should
|
||||
follow the earlier guidance to setup a better CPU configuration, with host
|
||||
passthrough recommended if live migration is not needed.
|
||||
|
||||
@table @option
|
||||
@item @code{qemu32}
|
||||
@item @code{qemu64}
|
||||
|
||||
QEMU Virtual CPU version 2.5+ (32 & 64 bit variants)
|
||||
|
||||
qemu64 is used for x86_64 guests and qemu32 is used for i686 guests, when no
|
||||
-cpu argument is given to QEMU, or no <cpu> is provided in libvirt XML.
|
||||
@end table
|
||||
|
||||
|
||||
@node other_non_recommended_cpu_models_x86
|
||||
@subsection Other non-recommended x86 CPUs
|
||||
|
||||
The following CPUs models are compatible with most AMD and Intel x86 hosts, but
|
||||
their usage is discouraged, as they expose a very limited featureset, which
|
||||
prevents guests having optimal performance.
|
||||
|
||||
@table @option
|
||||
|
||||
@item @code{kvm32}
|
||||
@item @code{kvm64}
|
||||
|
||||
Common KVM processor (32 & 64 bit variants)
|
||||
|
||||
Legacy models just for historical compatibility with ancient QEMU versions.
|
||||
|
||||
|
||||
@item @code{486}
|
||||
@item @code{athlon}
|
||||
@item @code{phenom}
|
||||
@item @code{coreduo}
|
||||
@item @code{core2duo}
|
||||
@item @code{n270}
|
||||
@item @code{pentium}
|
||||
@item @code{pentium2}
|
||||
@item @code{pentium3}
|
||||
|
||||
Various very old x86 CPU models, mostly predating the introduction of
|
||||
hardware assisted virtualization, that should thus not be required for
|
||||
running virtual machines.
|
||||
@end table
|
||||
|
||||
@node cpu_model_syntax_apps
|
||||
@subsection Syntax for configuring CPU models
|
||||
|
||||
The example below illustrate the approach to configuring the various
|
||||
CPU models / features in QEMU and libvirt.
|
||||
|
||||
QEMU command line:
|
||||
|
||||
@table @option
|
||||
|
||||
@item Host passthrough
|
||||
|
||||
@example
|
||||
$ @value{qemu_system_x86} -cpu host
|
||||
@end example
|
||||
|
||||
With feature customization:
|
||||
|
||||
@example
|
||||
$ @value{qemu_system_x86} -cpu host,-vmx,...
|
||||
@end example
|
||||
|
||||
@item Named CPU models
|
||||
|
||||
@example
|
||||
$ @value{qemu_system_x86} -cpu Westmere
|
||||
@end example
|
||||
|
||||
With feature customization:
|
||||
|
||||
@example
|
||||
$ @value{qemu_system_x86} -cpu Westmere,+pcid,...
|
||||
@end example
|
||||
|
||||
@end table
|
||||
|
||||
|
||||
Libvirt guest XML:
|
||||
|
||||
@table @option
|
||||
|
||||
@item Host passthrough
|
||||
|
||||
@example
|
||||
<cpu mode='host-passthrough'/>
|
||||
@end example
|
||||
|
||||
With feature customization:
|
||||
|
||||
@example
|
||||
<cpu mode='host-passthrough'>
|
||||
<feature name="vmx" policy="disable"/>
|
||||
...
|
||||
</cpu>
|
||||
@end example
|
||||
|
||||
@item Host model
|
||||
|
||||
@example
|
||||
<cpu mode='host-model'/>
|
||||
@end example
|
||||
|
||||
With feature customization:
|
||||
|
||||
@example
|
||||
<cpu mode='host-model'>
|
||||
<feature name="vmx" policy="disable"/>
|
||||
...
|
||||
</cpu>
|
||||
@end example
|
||||
|
||||
@item Named model
|
||||
|
||||
@example
|
||||
<cpu mode='custom'>
|
||||
<model name="Westmere"/>
|
||||
</cpu>
|
||||
@end example
|
||||
|
||||
With feature customization:
|
||||
|
||||
@example
|
||||
<cpu mode='custom'>
|
||||
<model name="Westmere"/>
|
||||
<feature name="pcid" policy="require"/>
|
||||
...
|
||||
</cpu>
|
||||
@end example
|
||||
|
||||
@end table
|
||||
@@ -1,377 +0,0 @@
|
||||
@node Deprecated features
|
||||
@appendix Deprecated features
|
||||
|
||||
In general features are intended to be supported indefinitely once
|
||||
introduced into QEMU. In the event that a feature needs to be removed,
|
||||
it will be listed in this appendix. The feature will remain functional
|
||||
for 2 releases prior to actual removal. Deprecated features may also
|
||||
generate warnings on the console when QEMU starts up, or if activated
|
||||
via a monitor command, however, this is not a mandatory requirement.
|
||||
|
||||
Prior to the 2.10.0 release there was no official policy on how
|
||||
long features would be deprecated prior to their removal, nor
|
||||
any documented list of which features were deprecated. Thus
|
||||
any features deprecated prior to 2.10.0 will be treated as if
|
||||
they were first deprecated in the 2.10.0 release.
|
||||
|
||||
What follows is a list of all features currently marked as
|
||||
deprecated.
|
||||
|
||||
@section System emulator command line arguments
|
||||
|
||||
@subsection -machine enforce-config-section=on|off (since 3.1)
|
||||
|
||||
The @option{enforce-config-section} parameter is replaced by the
|
||||
@option{-global migration.send-configuration=@var{on|off}} option.
|
||||
|
||||
@subsection -no-kvm (since 1.3.0)
|
||||
|
||||
The ``-no-kvm'' argument is now a synonym for setting ``-accel tcg''.
|
||||
|
||||
@subsection -usbdevice (since 2.10.0)
|
||||
|
||||
The ``-usbdevice DEV'' argument is now a synonym for setting
|
||||
the ``-device usb-DEV'' argument instead. The deprecated syntax
|
||||
would automatically enable USB support on the machine type.
|
||||
If using the new syntax, USB support must be explicitly
|
||||
enabled via the ``-machine usb=on'' argument.
|
||||
|
||||
@subsection -drive file=json:@{...@{'driver':'file'@}@} (since 3.0)
|
||||
|
||||
The 'file' driver for drives is no longer appropriate for character or host
|
||||
devices and will only accept regular files (S_IFREG). The correct driver
|
||||
for these file types is 'host_cdrom' or 'host_device' as appropriate.
|
||||
|
||||
@subsection -net ...,name=@var{name} (since 3.1)
|
||||
|
||||
The @option{name} parameter of the @option{-net} option is a synonym
|
||||
for the @option{id} parameter, which should now be used instead.
|
||||
|
||||
@subsection -smp (invalid topologies) (since 3.1)
|
||||
|
||||
CPU topology properties should describe whole machine topology including
|
||||
possible CPUs.
|
||||
|
||||
However, historically it was possible to start QEMU with an incorrect topology
|
||||
where @math{@var{n} <= @var{sockets} * @var{cores} * @var{threads} < @var{maxcpus}},
|
||||
which could lead to an incorrect topology enumeration by the guest.
|
||||
Support for invalid topologies will be removed, the user must ensure
|
||||
topologies described with -smp include all possible cpus, i.e.
|
||||
@math{@var{sockets} * @var{cores} * @var{threads} = @var{maxcpus}}.
|
||||
|
||||
@subsection -vnc acl (since 4.0.0)
|
||||
|
||||
The @code{acl} option to the @code{-vnc} argument has been replaced
|
||||
by the @code{tls-authz} and @code{sasl-authz} options.
|
||||
|
||||
@subsection QEMU_AUDIO_ environment variables and -audio-help (since 4.0)
|
||||
|
||||
The ``-audiodev'' argument is now the preferred way to specify audio
|
||||
backend settings instead of environment variables. To ease migration to
|
||||
the new format, the ``-audiodev-help'' option can be used to convert
|
||||
the current values of the environment variables to ``-audiodev'' options.
|
||||
|
||||
@subsection Creating sound card devices and vnc without audiodev= property (since 4.2)
|
||||
|
||||
When not using the deprecated legacy audio config, each sound card
|
||||
should specify an @code{audiodev=} property. Additionally, when using
|
||||
vnc, you should specify an @code{audiodev=} propery if you plan to
|
||||
transmit audio through the VNC protocol.
|
||||
|
||||
@subsection -mon ...,control=readline,pretty=on|off (since 4.1)
|
||||
|
||||
The @code{pretty=on|off} switch has no effect for HMP monitors, but is
|
||||
silently ignored. Using the switch with HMP monitors will become an
|
||||
error in the future.
|
||||
|
||||
@subsection -realtime (since 4.1)
|
||||
|
||||
The @code{-realtime mlock=on|off} argument has been replaced by the
|
||||
@code{-overcommit mem-lock=on|off} argument.
|
||||
|
||||
@subsection -numa node,mem=@var{size} (since 4.1)
|
||||
|
||||
The parameter @option{mem} of @option{-numa node} is used to assign a part of
|
||||
guest RAM to a NUMA node. But when using it, it's impossible to manage specified
|
||||
RAM chunk on the host side (like bind it to a host node, setting bind policy, ...),
|
||||
so guest end-ups with the fake NUMA configuration with suboptiomal performance.
|
||||
However since 2014 there is an alternative way to assign RAM to a NUMA node
|
||||
using parameter @option{memdev}, which does the same as @option{mem} and adds
|
||||
means to actualy manage node RAM on the host side. Use parameter @option{memdev}
|
||||
with @var{memory-backend-ram} backend as an replacement for parameter @option{mem}
|
||||
to achieve the same fake NUMA effect or a properly configured
|
||||
@var{memory-backend-file} backend to actually benefit from NUMA configuration.
|
||||
In future new machine versions will not accept the option but it will still
|
||||
work with old machine types. User can check QAPI schema to see if the legacy
|
||||
option is supported by looking at MachineInfo::numa-mem-supported property.
|
||||
|
||||
@subsection -numa node (without memory specified) (since 4.1)
|
||||
|
||||
Splitting RAM by default between NUMA nodes has the same issues as @option{mem}
|
||||
parameter described above with the difference that the role of the user plays
|
||||
QEMU using implicit generic or board specific splitting rule.
|
||||
Use @option{memdev} with @var{memory-backend-ram} backend or @option{mem} (if
|
||||
it's supported by used machine type) to define mapping explictly instead.
|
||||
|
||||
@subsection RISC-V -bios (since 4.1)
|
||||
|
||||
QEMU 4.1 introduced support for the -bios option in QEMU for RISC-V for the
|
||||
RISC-V virt machine and sifive_u machine.
|
||||
|
||||
QEMU 4.1 has no changes to the default behaviour to avoid breakages. This
|
||||
default will change in a future QEMU release, so please prepare now. All users
|
||||
of the virt or sifive_u machine must change their command line usage.
|
||||
|
||||
QEMU 4.1 has three options, please migrate to one of these three:
|
||||
1. ``-bios none`` - This is the current default behavior if no -bios option
|
||||
is included. QEMU will not automatically load any firmware. It is up
|
||||
to the user to load all the images they need.
|
||||
2. ``-bios default`` - In a future QEMU release this will become the default
|
||||
behaviour if no -bios option is specified. This option will load the
|
||||
default OpenSBI firmware automatically. The firmware is included with
|
||||
the QEMU release and no user interaction is required. All a user needs
|
||||
to do is specify the kernel they want to boot with the -kernel option
|
||||
3. ``-bios <file>`` - Tells QEMU to load the specified file as the firmwrae.
|
||||
|
||||
@subsection -tb-size option (since 5.0)
|
||||
|
||||
QEMU 5.0 introduced an alternative syntax to specify the size of the translation
|
||||
block cache, @option{-accel tcg,tb-size=}. The new syntax deprecates the
|
||||
previously available @option{-tb-size} option.
|
||||
|
||||
@subsection -show-cursor option (since 5.0)
|
||||
|
||||
Use @option{-display sdl,show-cursor=on} or
|
||||
@option{-display gtk,show-cursor=on} instead.
|
||||
|
||||
@section QEMU Machine Protocol (QMP) commands
|
||||
|
||||
@subsection change (since 2.5.0)
|
||||
|
||||
Use ``blockdev-change-medium'' or ``change-vnc-password'' instead.
|
||||
|
||||
@subsection migrate_set_downtime and migrate_set_speed (since 2.8.0)
|
||||
|
||||
Use ``migrate-set-parameters'' instead.
|
||||
|
||||
@subsection migrate-set-cache-size and query-migrate-cache-size (since 2.11.0)
|
||||
|
||||
Use ``migrate-set-parameters'' and ``query-migrate-parameters'' instead.
|
||||
|
||||
@subsection query-block result field dirty-bitmaps[i].status (since 4.0)
|
||||
|
||||
The ``status'' field of the ``BlockDirtyInfo'' structure, returned by
|
||||
the query-block command is deprecated. Two new boolean fields,
|
||||
``recording'' and ``busy'' effectively replace it.
|
||||
|
||||
@subsection query-block result field dirty-bitmaps (Since 4.2)
|
||||
|
||||
The ``dirty-bitmaps`` field of the ``BlockInfo`` structure, returned by
|
||||
the query-block command is itself now deprecated. The ``dirty-bitmaps``
|
||||
field of the ``BlockDeviceInfo`` struct should be used instead, which is the
|
||||
type of the ``inserted`` field in query-block replies, as well as the
|
||||
type of array items in query-named-block-nodes.
|
||||
|
||||
Since the ``dirty-bitmaps`` field is optionally present in both the old and
|
||||
new locations, clients must use introspection to learn where to anticipate
|
||||
the field if/when it does appear in command output.
|
||||
|
||||
@subsection query-cpus (since 2.12.0)
|
||||
|
||||
The ``query-cpus'' command is replaced by the ``query-cpus-fast'' command.
|
||||
|
||||
@subsection query-cpus-fast "arch" output member (since 3.0.0)
|
||||
|
||||
The ``arch'' output member of the ``query-cpus-fast'' command is
|
||||
replaced by the ``target'' output member.
|
||||
|
||||
@subsection cpu-add (since 4.0)
|
||||
|
||||
Use ``device_add'' for hotplugging vCPUs instead of ``cpu-add''. See
|
||||
documentation of ``query-hotpluggable-cpus'' for additional
|
||||
details.
|
||||
|
||||
@subsection query-events (since 4.0)
|
||||
|
||||
The ``query-events'' command has been superseded by the more powerful
|
||||
and accurate ``query-qmp-schema'' command.
|
||||
|
||||
@subsection chardev client socket with 'wait' option (since 4.0)
|
||||
|
||||
Character devices creating sockets in client mode should not specify
|
||||
the 'wait' field, which is only applicable to sockets in server mode
|
||||
|
||||
@section Human Monitor Protocol (HMP) commands
|
||||
|
||||
@subsection The hub_id parameter of 'hostfwd_add' / 'hostfwd_remove' (since 3.1)
|
||||
|
||||
The @option{[hub_id name]} parameter tuple of the 'hostfwd_add' and
|
||||
'hostfwd_remove' HMP commands has been replaced by @option{netdev_id}.
|
||||
|
||||
@subsection cpu-add (since 4.0)
|
||||
|
||||
Use ``device_add'' for hotplugging vCPUs instead of ``cpu-add''. See
|
||||
documentation of ``query-hotpluggable-cpus'' for additional details.
|
||||
|
||||
@subsection acl_show, acl_reset, acl_policy, acl_add, acl_remove (since 4.0.0)
|
||||
|
||||
The ``acl_show'', ``acl_reset'', ``acl_policy'', ``acl_add'', and
|
||||
``acl_remove'' commands are deprecated with no replacement. Authorization
|
||||
for VNC should be performed using the pluggable QAuthZ objects.
|
||||
|
||||
@section Guest Emulator ISAs
|
||||
|
||||
@subsection RISC-V ISA privledge specification version 1.09.1 (since 4.1)
|
||||
|
||||
The RISC-V ISA privledge specification version 1.09.1 has been deprecated.
|
||||
QEMU supports both the newer version 1.10.0 and the ratified version 1.11.0, these
|
||||
should be used instead of the 1.09.1 version.
|
||||
|
||||
@section System emulator CPUS
|
||||
|
||||
@subsection RISC-V ISA CPUs (since 4.1)
|
||||
|
||||
The RISC-V cpus with the ISA version in the CPU name have been depcreated. The
|
||||
four CPUs are: ``rv32gcsu-v1.9.1``, ``rv32gcsu-v1.10.0``, ``rv64gcsu-v1.9.1`` and
|
||||
``rv64gcsu-v1.10.0``. Instead the version can be specified via the CPU ``priv_spec``
|
||||
option when using the ``rv32`` or ``rv64`` CPUs.
|
||||
|
||||
@subsection RISC-V ISA CPUs (since 4.1)
|
||||
|
||||
The RISC-V no MMU cpus have been depcreated. The two CPUs: ``rv32imacu-nommu`` and
|
||||
``rv64imacu-nommu`` should no longer be used. Instead the MMU status can be specified
|
||||
via the CPU ``mmu`` option when using the ``rv32`` or ``rv64`` CPUs.
|
||||
|
||||
@section System emulator devices
|
||||
|
||||
@subsection ide-drive (since 4.2)
|
||||
|
||||
The 'ide-drive' device is deprecated. Users should use 'ide-hd' or
|
||||
'ide-cd' as appropriate to get an IDE hard disk or CD-ROM as needed.
|
||||
|
||||
@subsection scsi-disk (since 4.2)
|
||||
|
||||
The 'scsi-disk' device is deprecated. Users should use 'scsi-hd' or
|
||||
'scsi-cd' as appropriate to get a SCSI hard disk or CD-ROM as needed.
|
||||
|
||||
@section System emulator machines
|
||||
|
||||
@subsection mips r4k platform (since 5.0)
|
||||
|
||||
This machine type is very old and unmaintained. Users should use the 'malta'
|
||||
machine type instead.
|
||||
|
||||
@subsection pc-1.0, pc-1.1, pc-1.2 and pc-1.3 (since 5.0)
|
||||
|
||||
These machine types are very old and likely can not be used for live migration
|
||||
from old QEMU versions anymore. A newer machine type should be used instead.
|
||||
|
||||
@subsection spike_v1.9.1 and spike_v1.10 (since 4.1)
|
||||
|
||||
The version specific Spike machines have been deprecated in favour of the
|
||||
generic ``spike`` machine. If you need to specify an older version of the RISC-V
|
||||
spec you can use the ``-cpu rv64gcsu,priv_spec=v1.9.1`` command line argument.
|
||||
|
||||
@section Device options
|
||||
|
||||
@subsection Emulated device options
|
||||
|
||||
@subsubsection -device virtio-blk,scsi=on|off (since 5.0.0)
|
||||
|
||||
The virtio-blk SCSI passthrough feature is a legacy VIRTIO feature. VIRTIO 1.0
|
||||
and later do not support it because the virtio-scsi device was introduced for
|
||||
full SCSI support. Use virtio-scsi instead when SCSI passthrough is required.
|
||||
|
||||
Note this also applies to ``-device virtio-blk-pci,scsi=on|off'', which is an
|
||||
alias.
|
||||
|
||||
@subsection Block device options
|
||||
|
||||
@subsubsection "backing": "" (since 2.12.0)
|
||||
|
||||
In order to prevent QEMU from automatically opening an image's backing
|
||||
chain, use ``"backing": null'' instead.
|
||||
|
||||
@subsubsection rbd keyvalue pair encoded filenames: "" (since 3.1.0)
|
||||
|
||||
Options for ``rbd'' should be specified according to its runtime options,
|
||||
like other block drivers. Legacy parsing of keyvalue pair encoded
|
||||
filenames is useful to open images with the old format for backing files;
|
||||
These image files should be updated to use the current format.
|
||||
|
||||
Example of legacy encoding:
|
||||
|
||||
@code{json:@{"file.driver":"rbd", "file.filename":"rbd:rbd/name"@}}
|
||||
|
||||
The above, converted to the current supported format:
|
||||
|
||||
@code{json:@{"file.driver":"rbd", "file.pool":"rbd", "file.image":"name"@}}
|
||||
|
||||
@section Related binaries
|
||||
|
||||
@subsection qemu-img convert -n -o (since 4.2.0)
|
||||
|
||||
All options specified in @option{-o} are image creation options, so
|
||||
they have no effect when used with @option{-n} to skip image creation.
|
||||
Silently ignored options can be confusing, so this combination of
|
||||
options will be made an error in future versions.
|
||||
|
||||
@section Backwards compatibility
|
||||
|
||||
@subsection Runnability guarantee of CPU models (since 4.1.0)
|
||||
|
||||
Previous versions of QEMU never changed existing CPU models in
|
||||
ways that introduced additional host software or hardware
|
||||
requirements to the VM. This allowed management software to
|
||||
safely change the machine type of an existing VM without
|
||||
introducing new requirements ("runnability guarantee"). This
|
||||
prevented CPU models from being updated to include CPU
|
||||
vulnerability mitigations, leaving guests vulnerable in the
|
||||
default configuration.
|
||||
|
||||
The CPU model runnability guarantee won't apply anymore to
|
||||
existing CPU models. Management software that needs runnability
|
||||
guarantees must resolve the CPU model aliases using te
|
||||
``alias-of'' field returned by the ``query-cpu-definitions'' QMP
|
||||
command.
|
||||
|
||||
While those guarantees are kept, the return value of
|
||||
``query-cpu-definitions'' will have existing CPU model aliases
|
||||
point to a version that doesn't break runnability guarantees
|
||||
(specifically, version 1 of those CPU models). In future QEMU
|
||||
versions, aliases will point to newer CPU model versions
|
||||
depending on the machine type, so management software must
|
||||
resolve CPU model aliases before starting a virtual machine.
|
||||
|
||||
|
||||
@node Recently removed features
|
||||
@appendix Recently removed features
|
||||
|
||||
What follows is a record of recently removed, formerly deprecated
|
||||
features that serves as a record for users who have encountered
|
||||
trouble after a recent upgrade.
|
||||
|
||||
@section QEMU Machine Protocol (QMP) commands
|
||||
|
||||
@subsection block-dirty-bitmap-add "autoload" parameter (since 4.2.0)
|
||||
|
||||
The "autoload" parameter has been ignored since 2.12.0. All bitmaps
|
||||
are automatically loaded from qcow2 images.
|
||||
|
||||
@section Related binaries
|
||||
|
||||
@subsection qemu-nbd --partition (removed in 5.0.0)
|
||||
|
||||
The ``qemu-nbd --partition $digit'' code (also spelled @option{-P})
|
||||
could only handle MBR partitions, and never correctly handled logical
|
||||
partitions beyond partition 5. Exporting a partition can still be
|
||||
done by utilizing the @option{--image-opts} option with a raw blockdev
|
||||
using the @code{offset} and @code{size} parameters layered on top of
|
||||
any other existing blockdev. For example, if partition 1 is 100MiB
|
||||
long starting at 1MiB, the old command:
|
||||
|
||||
@code{qemu-nbd -t -P 1 -f qcow2 file.qcow2}
|
||||
|
||||
can be rewritten as:
|
||||
|
||||
@code{qemu-nbd -t --image-opts driver=raw,offset=1M,size=100M,file.driver=qcow2,file.file.driver=file,file.file.filename=file.qcow2}
|
||||
@@ -1,71 +0,0 @@
|
||||
@node gdb_usage
|
||||
@section GDB usage
|
||||
|
||||
QEMU has a primitive support to work with gdb, so that you can do
|
||||
'Ctrl-C' while the virtual machine is running and inspect its state.
|
||||
|
||||
In order to use gdb, launch QEMU with the '-s' option. It will wait for a
|
||||
gdb connection:
|
||||
@example
|
||||
@value{qemu_system} -s -kernel bzImage -hda rootdisk.img -append "root=/dev/hda"
|
||||
Connected to host network interface: tun0
|
||||
Waiting gdb connection on port 1234
|
||||
@end example
|
||||
|
||||
Then launch gdb on the 'vmlinux' executable:
|
||||
@example
|
||||
> gdb vmlinux
|
||||
@end example
|
||||
|
||||
In gdb, connect to QEMU:
|
||||
@example
|
||||
(gdb) target remote localhost:1234
|
||||
@end example
|
||||
|
||||
Then you can use gdb normally. For example, type 'c' to launch the kernel:
|
||||
@example
|
||||
(gdb) c
|
||||
@end example
|
||||
|
||||
Here are some useful tips in order to use gdb on system code:
|
||||
|
||||
@enumerate
|
||||
@item
|
||||
Use @code{info reg} to display all the CPU registers.
|
||||
@item
|
||||
Use @code{x/10i $eip} to display the code at the PC position.
|
||||
@item
|
||||
Use @code{set architecture i8086} to dump 16 bit code. Then use
|
||||
@code{x/10i $cs*16+$eip} to dump the code at the PC position.
|
||||
@end enumerate
|
||||
|
||||
Advanced debugging options:
|
||||
|
||||
The default single stepping behavior is step with the IRQs and timer service routines off. It is set this way because when gdb executes a single step it expects to advance beyond the current instruction. With the IRQs and timer service routines on, a single step might jump into the one of the interrupt or exception vectors instead of executing the current instruction. This means you may hit the same breakpoint a number of times before executing the instruction gdb wants to have executed. Because there are rare circumstances where you want to single step into an interrupt vector the behavior can be controlled from GDB. There are three commands you can query and set the single step behavior:
|
||||
@table @code
|
||||
@item maintenance packet qqemu.sstepbits
|
||||
|
||||
This will display the MASK bits used to control the single stepping IE:
|
||||
@example
|
||||
(gdb) maintenance packet qqemu.sstepbits
|
||||
sending: "qqemu.sstepbits"
|
||||
received: "ENABLE=1,NOIRQ=2,NOTIMER=4"
|
||||
@end example
|
||||
@item maintenance packet qqemu.sstep
|
||||
|
||||
This will display the current value of the mask used when single stepping IE:
|
||||
@example
|
||||
(gdb) maintenance packet qqemu.sstep
|
||||
sending: "qqemu.sstep"
|
||||
received: "0x7"
|
||||
@end example
|
||||
@item maintenance packet Qqemu.sstep=HEX_VALUE
|
||||
|
||||
This will change the single step mask, so if wanted to enable IRQs on the single step, but not timers, you would use:
|
||||
@example
|
||||
(gdb) maintenance packet Qqemu.sstep=0x5
|
||||
sending: "qemu.sstep=0x5"
|
||||
received: "OK"
|
||||
@end example
|
||||
@end table
|
||||
|
||||
@@ -1,88 +0,0 @@
|
||||
@node disk_images
|
||||
@section Disk Images
|
||||
|
||||
QEMU supports many disk image formats, including growable disk images
|
||||
(their size increase as non empty sectors are written), compressed and
|
||||
encrypted disk images.
|
||||
|
||||
@menu
|
||||
* disk_images_quickstart:: Quick start for disk image creation
|
||||
* disk_images_snapshot_mode:: Snapshot mode
|
||||
* vm_snapshots:: VM snapshots
|
||||
@end menu
|
||||
|
||||
@node disk_images_quickstart
|
||||
@subsection Quick start for disk image creation
|
||||
|
||||
You can create a disk image with the command:
|
||||
@example
|
||||
qemu-img create myimage.img mysize
|
||||
@end example
|
||||
where @var{myimage.img} is the disk image filename and @var{mysize} is its
|
||||
size in kilobytes. You can add an @code{M} suffix to give the size in
|
||||
megabytes and a @code{G} suffix for gigabytes.
|
||||
|
||||
@c When this document is converted to rst we should make this into
|
||||
@c a proper linked reference to the qemu-img documentation again:
|
||||
See the qemu-img invocation documentation for more information.
|
||||
|
||||
@node disk_images_snapshot_mode
|
||||
@subsection Snapshot mode
|
||||
|
||||
If you use the option @option{-snapshot}, all disk images are
|
||||
considered as read only. When sectors in written, they are written in
|
||||
a temporary file created in @file{/tmp}. You can however force the
|
||||
write back to the raw disk images by using the @code{commit} monitor
|
||||
command (or @key{C-a s} in the serial console).
|
||||
|
||||
@node vm_snapshots
|
||||
@subsection VM snapshots
|
||||
|
||||
VM snapshots are snapshots of the complete virtual machine including
|
||||
CPU state, RAM, device state and the content of all the writable
|
||||
disks. In order to use VM snapshots, you must have at least one non
|
||||
removable and writable block device using the @code{qcow2} disk image
|
||||
format. Normally this device is the first virtual hard drive.
|
||||
|
||||
Use the monitor command @code{savevm} to create a new VM snapshot or
|
||||
replace an existing one. A human readable name can be assigned to each
|
||||
snapshot in addition to its numerical ID.
|
||||
|
||||
Use @code{loadvm} to restore a VM snapshot and @code{delvm} to remove
|
||||
a VM snapshot. @code{info snapshots} lists the available snapshots
|
||||
with their associated information:
|
||||
|
||||
@example
|
||||
(qemu) info snapshots
|
||||
Snapshot devices: hda
|
||||
Snapshot list (from hda):
|
||||
ID TAG VM SIZE DATE VM CLOCK
|
||||
1 start 41M 2006-08-06 12:38:02 00:00:14.954
|
||||
2 40M 2006-08-06 12:43:29 00:00:18.633
|
||||
3 msys 40M 2006-08-06 12:44:04 00:00:23.514
|
||||
@end example
|
||||
|
||||
A VM snapshot is made of a VM state info (its size is shown in
|
||||
@code{info snapshots}) and a snapshot of every writable disk image.
|
||||
The VM state info is stored in the first @code{qcow2} non removable
|
||||
and writable block device. The disk image snapshots are stored in
|
||||
every disk image. The size of a snapshot in a disk image is difficult
|
||||
to evaluate and is not shown by @code{info snapshots} because the
|
||||
associated disk sectors are shared among all the snapshots to save
|
||||
disk space (otherwise each snapshot would need a full copy of all the
|
||||
disk images).
|
||||
|
||||
When using the (unrelated) @code{-snapshot} option
|
||||
(@ref{disk_images_snapshot_mode}), you can always make VM snapshots,
|
||||
but they are deleted as soon as you exit QEMU.
|
||||
|
||||
VM snapshots currently have the following known limitations:
|
||||
@itemize
|
||||
@item
|
||||
They cannot cope with removable devices if they are removed or
|
||||
inserted after a snapshot is done.
|
||||
@item
|
||||
A few device drivers still have incomplete snapshot support so their
|
||||
state is not saved or restored properly (in particular USB).
|
||||
@end itemize
|
||||
|
||||
@@ -1,240 +0,0 @@
|
||||
@node sec_invocation
|
||||
@section Invocation
|
||||
|
||||
@example
|
||||
@c man begin SYNOPSIS
|
||||
@command{@value{qemu_system}} [@var{options}] [@var{disk_image}]
|
||||
@c man end
|
||||
@end example
|
||||
|
||||
@c man begin OPTIONS
|
||||
@var{disk_image} is a raw hard disk image for IDE hard disk 0. Some
|
||||
targets do not need a disk image.
|
||||
|
||||
@include qemu-options.texi
|
||||
|
||||
@c man end
|
||||
|
||||
@subsection Device URL Syntax
|
||||
@c TODO merge this with section Disk Images
|
||||
|
||||
@c man begin NOTES
|
||||
|
||||
In addition to using normal file images for the emulated storage devices,
|
||||
QEMU can also use networked resources such as iSCSI devices. These are
|
||||
specified using a special URL syntax.
|
||||
|
||||
@table @option
|
||||
@item iSCSI
|
||||
iSCSI support allows QEMU to access iSCSI resources directly and use as
|
||||
images for the guest storage. Both disk and cdrom images are supported.
|
||||
|
||||
Syntax for specifying iSCSI LUNs is
|
||||
``iscsi://<target-ip>[:<port>]/<target-iqn>/<lun>''
|
||||
|
||||
By default qemu will use the iSCSI initiator-name
|
||||
'iqn.2008-11.org.linux-kvm[:<name>]' but this can also be set from the command
|
||||
line or a configuration file.
|
||||
|
||||
Since version Qemu 2.4 it is possible to specify a iSCSI request timeout to detect
|
||||
stalled requests and force a reestablishment of the session. The timeout
|
||||
is specified in seconds. The default is 0 which means no timeout. Libiscsi
|
||||
1.15.0 or greater is required for this feature.
|
||||
|
||||
Example (without authentication):
|
||||
@example
|
||||
@value{qemu_system} -iscsi initiator-name=iqn.2001-04.com.example:my-initiator \
|
||||
-cdrom iscsi://192.0.2.1/iqn.2001-04.com.example/2 \
|
||||
-drive file=iscsi://192.0.2.1/iqn.2001-04.com.example/1
|
||||
@end example
|
||||
|
||||
Example (CHAP username/password via URL):
|
||||
@example
|
||||
@value{qemu_system} -drive file=iscsi://user%password@@192.0.2.1/iqn.2001-04.com.example/1
|
||||
@end example
|
||||
|
||||
Example (CHAP username/password via environment variables):
|
||||
@example
|
||||
LIBISCSI_CHAP_USERNAME="user" \
|
||||
LIBISCSI_CHAP_PASSWORD="password" \
|
||||
@value{qemu_system} -drive file=iscsi://192.0.2.1/iqn.2001-04.com.example/1
|
||||
@end example
|
||||
|
||||
@item NBD
|
||||
QEMU supports NBD (Network Block Devices) both using TCP protocol as well
|
||||
as Unix Domain Sockets. With TCP, the default port is 10809.
|
||||
|
||||
Syntax for specifying a NBD device using TCP, in preferred URI form:
|
||||
``nbd://<server-ip>[:<port>]/[<export>]''
|
||||
|
||||
Syntax for specifying a NBD device using Unix Domain Sockets; remember
|
||||
that '?' is a shell glob character and may need quoting:
|
||||
``nbd+unix:///[<export>]?socket=<domain-socket>''
|
||||
|
||||
Older syntax that is also recognized:
|
||||
``nbd:<server-ip>:<port>[:exportname=<export>]''
|
||||
|
||||
Syntax for specifying a NBD device using Unix Domain Sockets
|
||||
``nbd:unix:<domain-socket>[:exportname=<export>]''
|
||||
|
||||
Example for TCP
|
||||
@example
|
||||
@value{qemu_system} --drive file=nbd:192.0.2.1:30000
|
||||
@end example
|
||||
|
||||
Example for Unix Domain Sockets
|
||||
@example
|
||||
@value{qemu_system} --drive file=nbd:unix:/tmp/nbd-socket
|
||||
@end example
|
||||
|
||||
@item SSH
|
||||
QEMU supports SSH (Secure Shell) access to remote disks.
|
||||
|
||||
Examples:
|
||||
@example
|
||||
@value{qemu_system} -drive file=ssh://user@@host/path/to/disk.img
|
||||
@value{qemu_system} -drive file.driver=ssh,file.user=user,file.host=host,file.port=22,file.path=/path/to/disk.img
|
||||
@end example
|
||||
|
||||
Currently authentication must be done using ssh-agent. Other
|
||||
authentication methods may be supported in future.
|
||||
|
||||
@item Sheepdog
|
||||
Sheepdog is a distributed storage system for QEMU.
|
||||
QEMU supports using either local sheepdog devices or remote networked
|
||||
devices.
|
||||
|
||||
Syntax for specifying a sheepdog device
|
||||
@example
|
||||
sheepdog[+tcp|+unix]://[host:port]/vdiname[?socket=path][#snapid|#tag]
|
||||
@end example
|
||||
|
||||
Example
|
||||
@example
|
||||
@value{qemu_system} --drive file=sheepdog://192.0.2.1:30000/MyVirtualMachine
|
||||
@end example
|
||||
|
||||
See also @url{https://sheepdog.github.io/sheepdog/}.
|
||||
|
||||
@item GlusterFS
|
||||
GlusterFS is a user space distributed file system.
|
||||
QEMU supports the use of GlusterFS volumes for hosting VM disk images using
|
||||
TCP, Unix Domain Sockets and RDMA transport protocols.
|
||||
|
||||
Syntax for specifying a VM disk image on GlusterFS volume is
|
||||
@example
|
||||
|
||||
URI:
|
||||
gluster[+type]://[host[:port]]/volume/path[?socket=...][,debug=N][,logfile=...]
|
||||
|
||||
JSON:
|
||||
'json:@{"driver":"qcow2","file":@{"driver":"gluster","volume":"testvol","path":"a.img","debug":N,"logfile":"...",
|
||||
@ "server":[@{"type":"tcp","host":"...","port":"..."@},
|
||||
@ @{"type":"unix","socket":"..."@}]@}@}'
|
||||
@end example
|
||||
|
||||
|
||||
Example
|
||||
@example
|
||||
URI:
|
||||
@value{qemu_system} --drive file=gluster://192.0.2.1/testvol/a.img,
|
||||
@ file.debug=9,file.logfile=/var/log/qemu-gluster.log
|
||||
|
||||
JSON:
|
||||
@value{qemu_system} 'json:@{"driver":"qcow2",
|
||||
@ "file":@{"driver":"gluster",
|
||||
@ "volume":"testvol","path":"a.img",
|
||||
@ "debug":9,"logfile":"/var/log/qemu-gluster.log",
|
||||
@ "server":[@{"type":"tcp","host":"1.2.3.4","port":24007@},
|
||||
@ @{"type":"unix","socket":"/var/run/glusterd.socket"@}]@}@}'
|
||||
@value{qemu_system} -drive driver=qcow2,file.driver=gluster,file.volume=testvol,file.path=/path/a.img,
|
||||
@ file.debug=9,file.logfile=/var/log/qemu-gluster.log,
|
||||
@ file.server.0.type=tcp,file.server.0.host=1.2.3.4,file.server.0.port=24007,
|
||||
@ file.server.1.type=unix,file.server.1.socket=/var/run/glusterd.socket
|
||||
@end example
|
||||
|
||||
See also @url{http://www.gluster.org}.
|
||||
|
||||
@item HTTP/HTTPS/FTP/FTPS
|
||||
QEMU supports read-only access to files accessed over http(s) and ftp(s).
|
||||
|
||||
Syntax using a single filename:
|
||||
@example
|
||||
<protocol>://[<username>[:<password>]@@]<host>/<path>
|
||||
@end example
|
||||
|
||||
where:
|
||||
@table @option
|
||||
@item protocol
|
||||
'http', 'https', 'ftp', or 'ftps'.
|
||||
|
||||
@item username
|
||||
Optional username for authentication to the remote server.
|
||||
|
||||
@item password
|
||||
Optional password for authentication to the remote server.
|
||||
|
||||
@item host
|
||||
Address of the remote server.
|
||||
|
||||
@item path
|
||||
Path on the remote server, including any query string.
|
||||
@end table
|
||||
|
||||
The following options are also supported:
|
||||
@table @option
|
||||
@item url
|
||||
The full URL when passing options to the driver explicitly.
|
||||
|
||||
@item readahead
|
||||
The amount of data to read ahead with each range request to the remote server.
|
||||
This value may optionally have the suffix 'T', 'G', 'M', 'K', 'k' or 'b'. If it
|
||||
does not have a suffix, it will be assumed to be in bytes. The value must be a
|
||||
multiple of 512 bytes. It defaults to 256k.
|
||||
|
||||
@item sslverify
|
||||
Whether to verify the remote server's certificate when connecting over SSL. It
|
||||
can have the value 'on' or 'off'. It defaults to 'on'.
|
||||
|
||||
@item cookie
|
||||
Send this cookie (it can also be a list of cookies separated by ';') with
|
||||
each outgoing request. Only supported when using protocols such as HTTP
|
||||
which support cookies, otherwise ignored.
|
||||
|
||||
@item timeout
|
||||
Set the timeout in seconds of the CURL connection. This timeout is the time
|
||||
that CURL waits for a response from the remote server to get the size of the
|
||||
image to be downloaded. If not set, the default timeout of 5 seconds is used.
|
||||
@end table
|
||||
|
||||
Note that when passing options to qemu explicitly, @option{driver} is the value
|
||||
of <protocol>.
|
||||
|
||||
Example: boot from a remote Fedora 20 live ISO image
|
||||
@example
|
||||
@value{qemu_system_x86} --drive media=cdrom,file=https://archives.fedoraproject.org/pub/archive/fedora/linux/releases/20/Live/x86_64/Fedora-Live-Desktop-x86_64-20-1.iso,readonly
|
||||
|
||||
@value{qemu_system_x86} --drive media=cdrom,file.driver=http,file.url=http://archives.fedoraproject.org/pub/fedora/linux/releases/20/Live/x86_64/Fedora-Live-Desktop-x86_64-20-1.iso,readonly
|
||||
@end example
|
||||
|
||||
Example: boot from a remote Fedora 20 cloud image using a local overlay for
|
||||
writes, copy-on-read, and a readahead of 64k
|
||||
@example
|
||||
qemu-img create -f qcow2 -o backing_file='json:@{"file.driver":"http",, "file.url":"http://archives.fedoraproject.org/pub/archive/fedora/linux/releases/20/Images/x86_64/Fedora-x86_64-20-20131211.1-sda.qcow2",, "file.readahead":"64k"@}' /tmp/Fedora-x86_64-20-20131211.1-sda.qcow2
|
||||
|
||||
@value{qemu_system_x86} -drive file=/tmp/Fedora-x86_64-20-20131211.1-sda.qcow2,copy-on-read=on
|
||||
@end example
|
||||
|
||||
Example: boot from an image stored on a VMware vSphere server with a self-signed
|
||||
certificate using a local overlay for writes, a readahead of 64k and a timeout
|
||||
of 10 seconds.
|
||||
@example
|
||||
qemu-img create -f qcow2 -o backing_file='json:@{"file.driver":"https",, "file.url":"https://user:password@@vsphere.example.com/folder/test/test-flat.vmdk?dcPath=Datacenter&dsName=datastore1",, "file.sslverify":"off",, "file.readahead":"64k",, "file.timeout":10@}' /tmp/test.qcow2
|
||||
|
||||
@value{qemu_system_x86} -drive file=/tmp/test.qcow2
|
||||
@end example
|
||||
|
||||
@end table
|
||||
|
||||
@c man end
|
||||
|
||||
@@ -1,60 +0,0 @@
|
||||
@node pcsys_ivshmem
|
||||
@section Inter-VM Shared Memory device
|
||||
|
||||
On Linux hosts, a shared memory device is available. The basic syntax
|
||||
is:
|
||||
|
||||
@example
|
||||
@value{qemu_system_x86} -device ivshmem-plain,memdev=@var{hostmem}
|
||||
@end example
|
||||
|
||||
where @var{hostmem} names a host memory backend. For a POSIX shared
|
||||
memory backend, use something like
|
||||
|
||||
@example
|
||||
-object memory-backend-file,size=1M,share,mem-path=/dev/shm/ivshmem,id=@var{hostmem}
|
||||
@end example
|
||||
|
||||
If desired, interrupts can be sent between guest VMs accessing the same shared
|
||||
memory region. Interrupt support requires using a shared memory server and
|
||||
using a chardev socket to connect to it. The code for the shared memory server
|
||||
is qemu.git/contrib/ivshmem-server. An example syntax when using the shared
|
||||
memory server is:
|
||||
|
||||
@example
|
||||
# First start the ivshmem server once and for all
|
||||
ivshmem-server -p @var{pidfile} -S @var{path} -m @var{shm-name} -l @var{shm-size} -n @var{vectors}
|
||||
|
||||
# Then start your qemu instances with matching arguments
|
||||
@value{qemu_system_x86} -device ivshmem-doorbell,vectors=@var{vectors},chardev=@var{id}
|
||||
-chardev socket,path=@var{path},id=@var{id}
|
||||
@end example
|
||||
|
||||
When using the server, the guest will be assigned a VM ID (>=0) that allows guests
|
||||
using the same server to communicate via interrupts. Guests can read their
|
||||
VM ID from a device register (see ivshmem-spec.txt).
|
||||
|
||||
@subsection Migration with ivshmem
|
||||
|
||||
With device property @option{master=on}, the guest will copy the shared
|
||||
memory on migration to the destination host. With @option{master=off},
|
||||
the guest will not be able to migrate with the device attached. In the
|
||||
latter case, the device should be detached and then reattached after
|
||||
migration using the PCI hotplug support.
|
||||
|
||||
At most one of the devices sharing the same memory can be master. The
|
||||
master must complete migration before you plug back the other devices.
|
||||
|
||||
@subsection ivshmem and hugepages
|
||||
|
||||
Instead of specifying the <shm size> using POSIX shm, you may specify
|
||||
a memory backend that has hugepage support:
|
||||
|
||||
@example
|
||||
@value{qemu_system_x86} -object memory-backend-file,size=1G,mem-path=/dev/hugepages/my-shmem-file,share,id=mb1
|
||||
-device ivshmem-plain,memdev=mb1
|
||||
@end example
|
||||
|
||||
ivshmem-server also supports hugepages mount points with the
|
||||
@option{-m} memory path argument.
|
||||
|
||||
@@ -1,43 +0,0 @@
|
||||
@node pcsys_keys
|
||||
@section Keys in the graphical frontends
|
||||
|
||||
@c man begin OPTIONS
|
||||
|
||||
During the graphical emulation, you can use special key combinations to change
|
||||
modes. The default key mappings are shown below, but if you use @code{-alt-grab}
|
||||
then the modifier is Ctrl-Alt-Shift (instead of Ctrl-Alt) and if you use
|
||||
@code{-ctrl-grab} then the modifier is the right Ctrl key (instead of Ctrl-Alt):
|
||||
|
||||
@table @key
|
||||
@item Ctrl-Alt-f
|
||||
Toggle full screen
|
||||
|
||||
@item Ctrl-Alt-+
|
||||
Enlarge the screen
|
||||
|
||||
@item Ctrl-Alt--
|
||||
Shrink the screen
|
||||
|
||||
@item Ctrl-Alt-u
|
||||
Restore the screen's un-scaled dimensions
|
||||
|
||||
@item Ctrl-Alt-n
|
||||
Switch to virtual console 'n'. Standard console mappings are:
|
||||
@table @emph
|
||||
@item 1
|
||||
Target system display
|
||||
@item 2
|
||||
Monitor
|
||||
@item 3
|
||||
Serial port
|
||||
@end table
|
||||
|
||||
@item Ctrl-Alt
|
||||
Toggle mouse and keyboard grab.
|
||||
@end table
|
||||
|
||||
In the virtual consoles, you can use @key{Ctrl-Up}, @key{Ctrl-Down},
|
||||
@key{Ctrl-PageUp} and @key{Ctrl-PageDown} to move in the back log.
|
||||
|
||||
@c man end
|
||||
|
||||
@@ -1,9 +0,0 @@
|
||||
@node License
|
||||
@appendix License
|
||||
|
||||
QEMU is a trademark of Fabrice Bellard.
|
||||
|
||||
QEMU is released under the
|
||||
@url{https://www.gnu.org/licenses/gpl-2.0.txt,GNU General Public License},
|
||||
version 2. Parts of QEMU have specific licenses, see file
|
||||
@url{https://git.qemu.org/?p=qemu.git;a=blob_plain;f=LICENSE,LICENSE}.
|
||||
@@ -1,27 +0,0 @@
|
||||
@node direct_linux_boot
|
||||
@section Direct Linux Boot
|
||||
|
||||
This section explains how to launch a Linux kernel inside QEMU without
|
||||
having to make a full bootable image. It is very useful for fast Linux
|
||||
kernel testing.
|
||||
|
||||
The syntax is:
|
||||
@example
|
||||
@value{qemu_system} -kernel bzImage -hda rootdisk.img -append "root=/dev/hda"
|
||||
@end example
|
||||
|
||||
Use @option{-kernel} to provide the Linux kernel image and
|
||||
@option{-append} to give the kernel command line arguments. The
|
||||
@option{-initrd} option can be used to provide an INITRD image.
|
||||
|
||||
If you do not need graphical output, you can disable it and redirect
|
||||
the virtual serial port and the QEMU monitor to the console with the
|
||||
@option{-nographic} option. The typical command line is:
|
||||
@example
|
||||
@value{qemu_system} -kernel bzImage -hda rootdisk.img \
|
||||
-append "root=/dev/hda console=ttyS0" -nographic
|
||||
@end example
|
||||
|
||||
Use @key{Ctrl-a c} to switch between the serial console and the
|
||||
monitor (@pxref{pcsys_keys}).
|
||||
|
||||
@@ -1,35 +0,0 @@
|
||||
@node managed_startup
|
||||
@section Managed start up options
|
||||
|
||||
In system mode emulation, it's possible to create a VM in a paused state using
|
||||
the -S command line option. In this state the machine is completely initialized
|
||||
according to command line options and ready to execute VM code but VCPU threads
|
||||
are not executing any code. The VM state in this paused state depends on the way
|
||||
QEMU was started. It could be in:
|
||||
@table @asis
|
||||
@item initial state (after reset/power on state)
|
||||
@item with direct kernel loading, the initial state could be amended to execute
|
||||
code loaded by QEMU in the VM's RAM and with incoming migration
|
||||
@item with incoming migration, initial state will by amended with the migrated
|
||||
machine state after migration completes.
|
||||
@end table
|
||||
|
||||
This paused state is typically used by users to query machine state and/or
|
||||
additionally configure the machine (by hotplugging devices) in runtime before
|
||||
allowing VM code to run.
|
||||
|
||||
However, at the -S pause point, it's impossible to configure options that affect
|
||||
initial VM creation (like: -smp/-m/-numa ...) or cold plug devices. The
|
||||
experimental --preconfig command line option allows pausing QEMU
|
||||
before the initial VM creation, in a ``preconfig'' state, where additional
|
||||
queries and configuration can be performed via QMP before moving on to
|
||||
the resulting configuration startup. In the preconfig state, QEMU only allows
|
||||
a limited set of commands over the QMP monitor, where the commands do not
|
||||
depend on an initialized machine, including but not limited to:
|
||||
@table @asis
|
||||
@item qmp_capabilities
|
||||
@item query-qmp-schema
|
||||
@item query-commands
|
||||
@item query-status
|
||||
@item x-exit-preconfig
|
||||
@end table
|
||||
@@ -1,34 +0,0 @@
|
||||
@node pcsys_monitor
|
||||
@section QEMU Monitor
|
||||
|
||||
The QEMU monitor is used to give complex commands to the QEMU
|
||||
emulator. You can use it to:
|
||||
|
||||
@itemize @minus
|
||||
|
||||
@item
|
||||
Remove or insert removable media images
|
||||
(such as CD-ROM or floppies).
|
||||
|
||||
@item
|
||||
Freeze/unfreeze the Virtual Machine (VM) and save or restore its state
|
||||
from a disk file.
|
||||
|
||||
@item Inspect the VM state without an external debugger.
|
||||
|
||||
@end itemize
|
||||
|
||||
@subsection Commands
|
||||
|
||||
The following commands are available:
|
||||
|
||||
@include qemu-monitor.texi
|
||||
|
||||
@include qemu-monitor-info.texi
|
||||
|
||||
@subsection Integer expressions
|
||||
|
||||
The monitor understands integers expressions for every integer
|
||||
argument. You can use register names to get the value of specifics
|
||||
CPU registers by prefixing them with @emph{$}.
|
||||
|
||||
@@ -1,44 +0,0 @@
|
||||
@node mux_keys
|
||||
@section Keys in the character backend multiplexer
|
||||
|
||||
@c man begin OPTIONS
|
||||
|
||||
During emulation, if you are using a character backend multiplexer
|
||||
(which is the default if you are using @option{-nographic}) then
|
||||
several commands are available via an escape sequence. These
|
||||
key sequences all start with an escape character, which is @key{Ctrl-a}
|
||||
by default, but can be changed with @option{-echr}. The list below assumes
|
||||
you're using the default.
|
||||
|
||||
@table @key
|
||||
@item Ctrl-a h
|
||||
Print this help
|
||||
@item Ctrl-a x
|
||||
Exit emulator
|
||||
@item Ctrl-a s
|
||||
Save disk data back to file (if -snapshot)
|
||||
@item Ctrl-a t
|
||||
Toggle console timestamps
|
||||
@item Ctrl-a b
|
||||
Send break (magic sysrq in Linux)
|
||||
@item Ctrl-a c
|
||||
Rotate between the frontends connected to the multiplexer (usually
|
||||
this switches between the monitor and the console)
|
||||
@item Ctrl-a Ctrl-a
|
||||
Send the escape character to the frontend
|
||||
@end table
|
||||
@c man end
|
||||
|
||||
@ignore
|
||||
|
||||
@c man begin SEEALSO
|
||||
The HTML documentation of QEMU for more precise information and Linux
|
||||
user mode emulator invocation.
|
||||
@c man end
|
||||
|
||||
@c man begin AUTHOR
|
||||
Fabrice Bellard
|
||||
@c man end
|
||||
|
||||
@end ignore
|
||||
|
||||
@@ -1,96 +0,0 @@
|
||||
@node pcsys_network
|
||||
@section Network emulation
|
||||
|
||||
QEMU can simulate several network cards (e.g. PCI or ISA cards on the PC
|
||||
target) and can connect them to a network backend on the host or an emulated
|
||||
hub. The various host network backends can either be used to connect the NIC of
|
||||
the guest to a real network (e.g. by using a TAP devices or the non-privileged
|
||||
user mode network stack), or to other guest instances running in another QEMU
|
||||
process (e.g. by using the socket host network backend).
|
||||
|
||||
@subsection Using TAP network interfaces
|
||||
|
||||
This is the standard way to connect QEMU to a real network. QEMU adds
|
||||
a virtual network device on your host (called @code{tapN}), and you
|
||||
can then configure it as if it was a real ethernet card.
|
||||
|
||||
@subsubsection Linux host
|
||||
|
||||
As an example, you can download the @file{linux-test-xxx.tar.gz}
|
||||
archive and copy the script @file{qemu-ifup} in @file{/etc} and
|
||||
configure properly @code{sudo} so that the command @code{ifconfig}
|
||||
contained in @file{qemu-ifup} can be executed as root. You must verify
|
||||
that your host kernel supports the TAP network interfaces: the
|
||||
device @file{/dev/net/tun} must be present.
|
||||
|
||||
See @ref{sec_invocation} to have examples of command lines using the
|
||||
TAP network interfaces.
|
||||
|
||||
@subsubsection Windows host
|
||||
|
||||
There is a virtual ethernet driver for Windows 2000/XP systems, called
|
||||
TAP-Win32. But it is not included in standard QEMU for Windows,
|
||||
so you will need to get it separately. It is part of OpenVPN package,
|
||||
so download OpenVPN from : @url{https://openvpn.net/}.
|
||||
|
||||
@subsection Using the user mode network stack
|
||||
|
||||
By using the option @option{-net user} (default configuration if no
|
||||
@option{-net} option is specified), QEMU uses a completely user mode
|
||||
network stack (you don't need root privilege to use the virtual
|
||||
network). The virtual network configuration is the following:
|
||||
|
||||
@example
|
||||
|
||||
guest (10.0.2.15) <------> Firewall/DHCP server <-----> Internet
|
||||
| (10.0.2.2)
|
||||
|
|
||||
----> DNS server (10.0.2.3)
|
||||
|
|
||||
----> SMB server (10.0.2.4)
|
||||
@end example
|
||||
|
||||
The QEMU VM behaves as if it was behind a firewall which blocks all
|
||||
incoming connections. You can use a DHCP client to automatically
|
||||
configure the network in the QEMU VM. The DHCP server assign addresses
|
||||
to the hosts starting from 10.0.2.15.
|
||||
|
||||
In order to check that the user mode network is working, you can ping
|
||||
the address 10.0.2.2 and verify that you got an address in the range
|
||||
10.0.2.x from the QEMU virtual DHCP server.
|
||||
|
||||
Note that ICMP traffic in general does not work with user mode networking.
|
||||
@code{ping}, aka. ICMP echo, to the local router (10.0.2.2) shall work,
|
||||
however. If you're using QEMU on Linux >= 3.0, it can use unprivileged ICMP
|
||||
ping sockets to allow @code{ping} to the Internet. The host admin has to set
|
||||
the ping_group_range in order to grant access to those sockets. To allow ping
|
||||
for GID 100 (usually users group):
|
||||
|
||||
@example
|
||||
echo 100 100 > /proc/sys/net/ipv4/ping_group_range
|
||||
@end example
|
||||
|
||||
When using the built-in TFTP server, the router is also the TFTP
|
||||
server.
|
||||
|
||||
When using the @option{'-netdev user,hostfwd=...'} option, TCP or UDP
|
||||
connections can be redirected from the host to the guest. It allows for
|
||||
example to redirect X11, telnet or SSH connections.
|
||||
|
||||
@subsection Hubs
|
||||
|
||||
QEMU can simulate several hubs. A hub can be thought of as a virtual connection
|
||||
between several network devices. These devices can be for example QEMU virtual
|
||||
ethernet cards or virtual Host ethernet devices (TAP devices). You can connect
|
||||
guest NICs or host network backends to such a hub using the @option{-netdev
|
||||
hubport} or @option{-nic hubport} options. The legacy @option{-net} option
|
||||
also connects the given device to the emulated hub with ID 0 (i.e. the default
|
||||
hub) unless you specify a netdev with @option{-net nic,netdev=xxx} here.
|
||||
|
||||
@subsection Connecting emulated networks between QEMU instances
|
||||
|
||||
Using the @option{-netdev socket} (or @option{-nic socket} or
|
||||
@option{-net socket}) option, it is possible to create emulated
|
||||
networks that span several QEMU instances.
|
||||
See the description of the @option{-netdev socket} option in the
|
||||
@ref{sec_invocation,,Invocation chapter} to have a basic example.
|
||||
@@ -1,28 +0,0 @@
|
||||
@c The contents of this file must be kept in sync with qemu-option-trace.rst.inc
|
||||
@c until all the users of the texi file have been converted to rst and
|
||||
@c the texi file can be removed.
|
||||
|
||||
Specify tracing options.
|
||||
|
||||
@table @option
|
||||
@item [enable=]@var{pattern}
|
||||
Immediately enable events matching @var{pattern}
|
||||
(either event name or a globbing pattern). This option is only
|
||||
available if QEMU has been compiled with the @var{simple}, @var{log}
|
||||
or @var{ftrace} tracing backend. To specify multiple events or patterns,
|
||||
specify the @option{-trace} option multiple times.
|
||||
|
||||
Use @code{-trace help} to print a list of names of trace points.
|
||||
|
||||
@item events=@var{file}
|
||||
Immediately enable events listed in @var{file}.
|
||||
The file must contain one event name (as listed in the @file{trace-events-all}
|
||||
file) per line; globbing patterns are accepted too. This option is only
|
||||
available if QEMU has been compiled with the @var{simple}, @var{log} or
|
||||
@var{ftrace} tracing backend.
|
||||
|
||||
@item file=@var{file}
|
||||
Log output traces to @var{file}.
|
||||
This option is only available if QEMU has been compiled with
|
||||
the @var{simple} tracing backend.
|
||||
@end table
|
||||
@@ -1,12 +0,0 @@
|
||||
@node pcsys_quickstart
|
||||
@section Quick Start
|
||||
|
||||
Download and uncompress a PC hard disk image with Linux installed (e.g.
|
||||
@file{linux.img}) and type:
|
||||
|
||||
@example
|
||||
@value{qemu_system} linux.img
|
||||
@end example
|
||||
|
||||
Linux should boot and give you a prompt.
|
||||
|
||||
@@ -1,167 +0,0 @@
|
||||
@node Security
|
||||
@chapter Security
|
||||
|
||||
@section Overview
|
||||
|
||||
This chapter explains the security requirements that QEMU is designed to meet
|
||||
and principles for securely deploying QEMU.
|
||||
|
||||
@section Security Requirements
|
||||
|
||||
QEMU supports many different use cases, some of which have stricter security
|
||||
requirements than others. The community has agreed on the overall security
|
||||
requirements that users may depend on. These requirements define what is
|
||||
considered supported from a security perspective.
|
||||
|
||||
@subsection Virtualization Use Case
|
||||
|
||||
The virtualization use case covers cloud and virtual private server (VPS)
|
||||
hosting, as well as traditional data center and desktop virtualization. These
|
||||
use cases rely on hardware virtualization extensions to execute guest code
|
||||
safely on the physical CPU at close-to-native speed.
|
||||
|
||||
The following entities are untrusted, meaning that they may be buggy or
|
||||
malicious:
|
||||
|
||||
@itemize
|
||||
@item Guest
|
||||
@item User-facing interfaces (e.g. VNC, SPICE, WebSocket)
|
||||
@item Network protocols (e.g. NBD, live migration)
|
||||
@item User-supplied files (e.g. disk images, kernels, device trees)
|
||||
@item Passthrough devices (e.g. PCI, USB)
|
||||
@end itemize
|
||||
|
||||
Bugs affecting these entities are evaluated on whether they can cause damage in
|
||||
real-world use cases and treated as security bugs if this is the case.
|
||||
|
||||
@subsection Non-virtualization Use Case
|
||||
|
||||
The non-virtualization use case covers emulation using the Tiny Code Generator
|
||||
(TCG). In principle the TCG and device emulation code used in conjunction with
|
||||
the non-virtualization use case should meet the same security requirements as
|
||||
the virtualization use case. However, for historical reasons much of the
|
||||
non-virtualization use case code was not written with these security
|
||||
requirements in mind.
|
||||
|
||||
Bugs affecting the non-virtualization use case are not considered security
|
||||
bugs at this time. Users with non-virtualization use cases must not rely on
|
||||
QEMU to provide guest isolation or any security guarantees.
|
||||
|
||||
@section Architecture
|
||||
|
||||
This section describes the design principles that ensure the security
|
||||
requirements are met.
|
||||
|
||||
@subsection Guest Isolation
|
||||
|
||||
Guest isolation is the confinement of guest code to the virtual machine. When
|
||||
guest code gains control of execution on the host this is called escaping the
|
||||
virtual machine. Isolation also includes resource limits such as throttling of
|
||||
CPU, memory, disk, or network. Guests must be unable to exceed their resource
|
||||
limits.
|
||||
|
||||
QEMU presents an attack surface to the guest in the form of emulated devices.
|
||||
The guest must not be able to gain control of QEMU. Bugs in emulated devices
|
||||
could allow malicious guests to gain code execution in QEMU. At this point the
|
||||
guest has escaped the virtual machine and is able to act in the context of the
|
||||
QEMU process on the host.
|
||||
|
||||
Guests often interact with other guests and share resources with them. A
|
||||
malicious guest must not gain control of other guests or access their data.
|
||||
Disk image files and network traffic must be protected from other guests unless
|
||||
explicitly shared between them by the user.
|
||||
|
||||
@subsection Principle of Least Privilege
|
||||
|
||||
The principle of least privilege states that each component only has access to
|
||||
the privileges necessary for its function. In the case of QEMU this means that
|
||||
each process only has access to resources belonging to the guest.
|
||||
|
||||
The QEMU process should not have access to any resources that are inaccessible
|
||||
to the guest. This way the guest does not gain anything by escaping into the
|
||||
QEMU process since it already has access to those same resources from within
|
||||
the guest.
|
||||
|
||||
Following the principle of least privilege immediately fulfills guest isolation
|
||||
requirements. For example, guest A only has access to its own disk image file
|
||||
@code{a.img} and not guest B's disk image file @code{b.img}.
|
||||
|
||||
In reality certain resources are inaccessible to the guest but must be
|
||||
available to QEMU to perform its function. For example, host system calls are
|
||||
necessary for QEMU but are not exposed to guests. A guest that escapes into
|
||||
the QEMU process can then begin invoking host system calls.
|
||||
|
||||
New features must be designed to follow the principle of least privilege.
|
||||
Should this not be possible for technical reasons, the security risk must be
|
||||
clearly documented so users are aware of the trade-off of enabling the feature.
|
||||
|
||||
@subsection Isolation mechanisms
|
||||
|
||||
Several isolation mechanisms are available to realize this architecture of
|
||||
guest isolation and the principle of least privilege. With the exception of
|
||||
Linux seccomp, these mechanisms are all deployed by management tools that
|
||||
launch QEMU, such as libvirt. They are also platform-specific so they are only
|
||||
described briefly for Linux here.
|
||||
|
||||
The fundamental isolation mechanism is that QEMU processes must run as
|
||||
unprivileged users. Sometimes it seems more convenient to launch QEMU as
|
||||
root to give it access to host devices (e.g. @code{/dev/net/tun}) but this poses a
|
||||
huge security risk. File descriptor passing can be used to give an otherwise
|
||||
unprivileged QEMU process access to host devices without running QEMU as root.
|
||||
It is also possible to launch QEMU as a non-root user and configure UNIX groups
|
||||
for access to @code{/dev/kvm}, @code{/dev/net/tun}, and other device nodes.
|
||||
Some Linux distros already ship with UNIX groups for these devices by default.
|
||||
|
||||
@itemize
|
||||
@item SELinux and AppArmor make it possible to confine processes beyond the
|
||||
traditional UNIX process and file permissions model. They restrict the QEMU
|
||||
process from accessing processes and files on the host system that are not
|
||||
needed by QEMU.
|
||||
|
||||
@item Resource limits and cgroup controllers provide throughput and utilization
|
||||
limits on key resources such as CPU time, memory, and I/O bandwidth.
|
||||
|
||||
@item Linux namespaces can be used to make process, file system, and other system
|
||||
resources unavailable to QEMU. A namespaced QEMU process is restricted to only
|
||||
those resources that were granted to it.
|
||||
|
||||
@item Linux seccomp is available via the QEMU @option{--sandbox} option. It disables
|
||||
system calls that are not needed by QEMU, thereby reducing the host kernel
|
||||
attack surface.
|
||||
@end itemize
|
||||
|
||||
@section Sensitive configurations
|
||||
|
||||
There are aspects of QEMU that can have security implications which users &
|
||||
management applications must be aware of.
|
||||
|
||||
@subsection Monitor console (QMP and HMP)
|
||||
|
||||
The monitor console (whether used with QMP or HMP) provides an interface
|
||||
to dynamically control many aspects of QEMU's runtime operation. Many of the
|
||||
commands exposed will instruct QEMU to access content on the host file system
|
||||
and/or trigger spawning of external processes.
|
||||
|
||||
For example, the @code{migrate} command allows for the spawning of arbitrary
|
||||
processes for the purpose of tunnelling the migration data stream. The
|
||||
@code{blockdev-add} command instructs QEMU to open arbitrary files, exposing
|
||||
their content to the guest as a virtual disk.
|
||||
|
||||
Unless QEMU is otherwise confined using technologies such as SELinux, AppArmor,
|
||||
or Linux namespaces, the monitor console should be considered to have privileges
|
||||
equivalent to those of the user account QEMU is running under.
|
||||
|
||||
It is further important to consider the security of the character device backend
|
||||
over which the monitor console is exposed. It needs to have protection against
|
||||
malicious third parties which might try to make unauthorized connections, or
|
||||
perform man-in-the-middle attacks. Many of the character device backends do not
|
||||
satisfy this requirement and so must not be used for the monitor console.
|
||||
|
||||
The general recommendation is that the monitor console should be exposed over
|
||||
a UNIX domain socket backend to the local host only. Use of the TCP based
|
||||
character device backend is inappropriate unless configured to use both TLS
|
||||
encryption and authorization control policy on client connections.
|
||||
|
||||
In summary, the monitor console is considered a privileged control interface to
|
||||
QEMU and as such should only be made accessible to a trusted management
|
||||
application or user.
|
||||
@@ -1,245 +0,0 @@
|
||||
@node ARM System emulator
|
||||
@section ARM System emulator
|
||||
|
||||
Use the executable @file{qemu-system-arm} to simulate a ARM
|
||||
machine. The ARM Integrator/CP board is emulated with the following
|
||||
devices:
|
||||
|
||||
@itemize @minus
|
||||
@item
|
||||
ARM926E, ARM1026E, ARM946E, ARM1136 or Cortex-A8 CPU
|
||||
@item
|
||||
Two PL011 UARTs
|
||||
@item
|
||||
SMC 91c111 Ethernet adapter
|
||||
@item
|
||||
PL110 LCD controller
|
||||
@item
|
||||
PL050 KMI with PS/2 keyboard and mouse.
|
||||
@item
|
||||
PL181 MultiMedia Card Interface with SD card.
|
||||
@end itemize
|
||||
|
||||
The ARM Versatile baseboard is emulated with the following devices:
|
||||
|
||||
@itemize @minus
|
||||
@item
|
||||
ARM926E, ARM1136 or Cortex-A8 CPU
|
||||
@item
|
||||
PL190 Vectored Interrupt Controller
|
||||
@item
|
||||
Four PL011 UARTs
|
||||
@item
|
||||
SMC 91c111 Ethernet adapter
|
||||
@item
|
||||
PL110 LCD controller
|
||||
@item
|
||||
PL050 KMI with PS/2 keyboard and mouse.
|
||||
@item
|
||||
PCI host bridge. Note the emulated PCI bridge only provides access to
|
||||
PCI memory space. It does not provide access to PCI IO space.
|
||||
This means some devices (eg. ne2k_pci NIC) are not usable, and others
|
||||
(eg. rtl8139 NIC) are only usable when the guest drivers use the memory
|
||||
mapped control registers.
|
||||
@item
|
||||
PCI OHCI USB controller.
|
||||
@item
|
||||
LSI53C895A PCI SCSI Host Bus Adapter with hard disk and CD-ROM devices.
|
||||
@item
|
||||
PL181 MultiMedia Card Interface with SD card.
|
||||
@end itemize
|
||||
|
||||
Several variants of the ARM RealView baseboard are emulated,
|
||||
including the EB, PB-A8 and PBX-A9. Due to interactions with the
|
||||
bootloader, only certain Linux kernel configurations work out
|
||||
of the box on these boards.
|
||||
|
||||
Kernels for the PB-A8 board should have CONFIG_REALVIEW_HIGH_PHYS_OFFSET
|
||||
enabled in the kernel, and expect 512M RAM. Kernels for The PBX-A9 board
|
||||
should have CONFIG_SPARSEMEM enabled, CONFIG_REALVIEW_HIGH_PHYS_OFFSET
|
||||
disabled and expect 1024M RAM.
|
||||
|
||||
The following devices are emulated:
|
||||
|
||||
@itemize @minus
|
||||
@item
|
||||
ARM926E, ARM1136, ARM11MPCore, Cortex-A8 or Cortex-A9 MPCore CPU
|
||||
@item
|
||||
ARM AMBA Generic/Distributed Interrupt Controller
|
||||
@item
|
||||
Four PL011 UARTs
|
||||
@item
|
||||
SMC 91c111 or SMSC LAN9118 Ethernet adapter
|
||||
@item
|
||||
PL110 LCD controller
|
||||
@item
|
||||
PL050 KMI with PS/2 keyboard and mouse
|
||||
@item
|
||||
PCI host bridge
|
||||
@item
|
||||
PCI OHCI USB controller
|
||||
@item
|
||||
LSI53C895A PCI SCSI Host Bus Adapter with hard disk and CD-ROM devices
|
||||
@item
|
||||
PL181 MultiMedia Card Interface with SD card.
|
||||
@end itemize
|
||||
|
||||
The XScale-based clamshell PDA models ("Spitz", "Akita", "Borzoi"
|
||||
and "Terrier") emulation includes the following peripherals:
|
||||
|
||||
@itemize @minus
|
||||
@item
|
||||
Intel PXA270 System-on-chip (ARM V5TE core)
|
||||
@item
|
||||
NAND Flash memory
|
||||
@item
|
||||
IBM/Hitachi DSCM microdrive in a PXA PCMCIA slot - not in "Akita"
|
||||
@item
|
||||
On-chip OHCI USB controller
|
||||
@item
|
||||
On-chip LCD controller
|
||||
@item
|
||||
On-chip Real Time Clock
|
||||
@item
|
||||
TI ADS7846 touchscreen controller on SSP bus
|
||||
@item
|
||||
Maxim MAX1111 analog-digital converter on I@math{^2}C bus
|
||||
@item
|
||||
GPIO-connected keyboard controller and LEDs
|
||||
@item
|
||||
Secure Digital card connected to PXA MMC/SD host
|
||||
@item
|
||||
Three on-chip UARTs
|
||||
@item
|
||||
WM8750 audio CODEC on I@math{^2}C and I@math{^2}S busses
|
||||
@end itemize
|
||||
|
||||
The Palm Tungsten|E PDA (codename "Cheetah") emulation includes the
|
||||
following elements:
|
||||
|
||||
@itemize @minus
|
||||
@item
|
||||
Texas Instruments OMAP310 System-on-chip (ARM 925T core)
|
||||
@item
|
||||
ROM and RAM memories (ROM firmware image can be loaded with -option-rom)
|
||||
@item
|
||||
On-chip LCD controller
|
||||
@item
|
||||
On-chip Real Time Clock
|
||||
@item
|
||||
TI TSC2102i touchscreen controller / analog-digital converter / Audio
|
||||
CODEC, connected through MicroWire and I@math{^2}S busses
|
||||
@item
|
||||
GPIO-connected matrix keypad
|
||||
@item
|
||||
Secure Digital card connected to OMAP MMC/SD host
|
||||
@item
|
||||
Three on-chip UARTs
|
||||
@end itemize
|
||||
|
||||
Nokia N800 and N810 internet tablets (known also as RX-34 and RX-44 / 48)
|
||||
emulation supports the following elements:
|
||||
|
||||
@itemize @minus
|
||||
@item
|
||||
Texas Instruments OMAP2420 System-on-chip (ARM 1136 core)
|
||||
@item
|
||||
RAM and non-volatile OneNAND Flash memories
|
||||
@item
|
||||
Display connected to EPSON remote framebuffer chip and OMAP on-chip
|
||||
display controller and a LS041y3 MIPI DBI-C controller
|
||||
@item
|
||||
TI TSC2301 (in N800) and TI TSC2005 (in N810) touchscreen controllers
|
||||
driven through SPI bus
|
||||
@item
|
||||
National Semiconductor LM8323-controlled qwerty keyboard driven
|
||||
through I@math{^2}C bus
|
||||
@item
|
||||
Secure Digital card connected to OMAP MMC/SD host
|
||||
@item
|
||||
Three OMAP on-chip UARTs and on-chip STI debugging console
|
||||
@item
|
||||
Mentor Graphics "Inventra" dual-role USB controller embedded in a TI
|
||||
TUSB6010 chip - only USB host mode is supported
|
||||
@item
|
||||
TI TMP105 temperature sensor driven through I@math{^2}C bus
|
||||
@item
|
||||
TI TWL92230C power management companion with an RTC on I@math{^2}C bus
|
||||
@item
|
||||
Nokia RETU and TAHVO multi-purpose chips with an RTC, connected
|
||||
through CBUS
|
||||
@end itemize
|
||||
|
||||
The Luminary Micro Stellaris LM3S811EVB emulation includes the following
|
||||
devices:
|
||||
|
||||
@itemize @minus
|
||||
@item
|
||||
Cortex-M3 CPU core.
|
||||
@item
|
||||
64k Flash and 8k SRAM.
|
||||
@item
|
||||
Timers, UARTs, ADC and I@math{^2}C interface.
|
||||
@item
|
||||
OSRAM Pictiva 96x16 OLED with SSD0303 controller on I@math{^2}C bus.
|
||||
@end itemize
|
||||
|
||||
The Luminary Micro Stellaris LM3S6965EVB emulation includes the following
|
||||
devices:
|
||||
|
||||
@itemize @minus
|
||||
@item
|
||||
Cortex-M3 CPU core.
|
||||
@item
|
||||
256k Flash and 64k SRAM.
|
||||
@item
|
||||
Timers, UARTs, ADC, I@math{^2}C and SSI interfaces.
|
||||
@item
|
||||
OSRAM Pictiva 128x64 OLED with SSD0323 controller connected via SSI.
|
||||
@end itemize
|
||||
|
||||
The Freecom MusicPal internet radio emulation includes the following
|
||||
elements:
|
||||
|
||||
@itemize @minus
|
||||
@item
|
||||
Marvell MV88W8618 ARM core.
|
||||
@item
|
||||
32 MB RAM, 256 KB SRAM, 8 MB flash.
|
||||
@item
|
||||
Up to 2 16550 UARTs
|
||||
@item
|
||||
MV88W8xx8 Ethernet controller
|
||||
@item
|
||||
MV88W8618 audio controller, WM8750 CODEC and mixer
|
||||
@item
|
||||
128×64 display with brightness control
|
||||
@item
|
||||
2 buttons, 2 navigation wheels with button function
|
||||
@end itemize
|
||||
|
||||
The Siemens SX1 models v1 and v2 (default) basic emulation.
|
||||
The emulation includes the following elements:
|
||||
|
||||
@itemize @minus
|
||||
@item
|
||||
Texas Instruments OMAP310 System-on-chip (ARM 925T core)
|
||||
@item
|
||||
ROM and RAM memories (ROM firmware image can be loaded with -pflash)
|
||||
V1
|
||||
1 Flash of 16MB and 1 Flash of 8MB
|
||||
V2
|
||||
1 Flash of 32MB
|
||||
@item
|
||||
On-chip LCD controller
|
||||
@item
|
||||
On-chip Real Time Clock
|
||||
@item
|
||||
Secure Digital card connected to OMAP MMC/SD host
|
||||
@item
|
||||
Three on-chip UARTs
|
||||
@end itemize
|
||||
|
||||
A Linux 2.6 test image is available on the QEMU web site. More
|
||||
information is available in the QEMU mailing-list archive.
|
||||
|
||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user