Commit Graph
13714 Commits
Author SHA1 Message Date
Peter Maydell 4208e6ae11 Merge tag 'pull-request-2022-12-15' of https://gitlab.com/thuth/qemu into staging
* s390x PCI fixes and improvements (for the ISM device)
* Fix emulated MVCP and MVCS s390x instructions
* Clean-ups for the e1000e qtest
* Enable qtests on Windows
* Update FreeBSD CI to version 12.4
* Check --disable-tcg for ppc64 in the CI
* Improve scripts/make-releases a little bit
* Many other misc small clean-ups and fixes here and there

# gpg: Signature made Thu 15 Dec 2022 15:05:44 GMT
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2022-12-15' of https://gitlab.com/thuth/qemu: (23 commits)
  tests/qtest/vhost-user-blk-test: don't abort all qtests on missing envar
  .gitlab/issue_templates: Move suggestions into comments
  gitlab-ci: Check building ppc64 without TCG
  FreeBSD: Upgrade to 12.4 release
  tests/qtest: Enable qtest build on Windows
  .gitlab-ci.d/windows.yml: Exclude qTests from 64-bit CI job for now
  .gitlab-ci.d/windows.yml: Keep 64-bit and 32-bit build scripts consistent
  .gitlab-ci.d/windows.yml: Unify the prerequisite packages
  tests/qtest/libqos/e1000e: Correctly group register accesses
  tests/qtest/e1000e-test: De-duplicate constants
  tests/qtest/libqos/e1000e: Remove "other" interrupts
  hw: Include the VMWare devices only in the x86 targets
  MAINTAINERS: Add documentation files to the corresponding sections
  util/oslib-win32: Remove obsolete reference to g_poll code
  util/qemu-config: Fix "query-command-line-options" to provide the right values
  scripts/make-release: Only clone single branches to speed up the script
  scripts/make-release: Add a simple help text for the script
  monitor/misc: Remove superfluous include statements
  target/s390x: The MVCP and MVCS instructions are not privileged
  target/s390x/tcg/mem_helper: Test the right bits in psw_key_valid()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-12-15 21:39:56 +00:00
Peter Maydell 29dc49f031 Merge tag 'pull-target-arm-20221215-1' of https://git.linaro.org/people/pmaydell/qemu-arm into staging
target-arm queue:
 * hw/arm/virt: Add properties to allow more granular
   configuration of use of highmem space
 * target/arm: Add Cortex-A55 CPU
 * hw/intc/arm_gicv3: Fix GICD_TYPER ITLinesNumber advertisement
 * Implement FEAT_EVT
 * Some 3-phase-reset conversions for Arm GIC, SMMU
 * hw/arm/boot: set initrd with #address-cells type in fdt
 * hw/misc: Move some arm-related files from specific_ss into softmmu_ss
 * Restrict arm_cpu_exec_interrupt() to TCG accelerator

# gpg: Signature made Thu 15 Dec 2022 17:38:36 GMT
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# gpg:                 aka "Peter Maydell <peter@archaic.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* tag 'pull-target-arm-20221215-1' of https://git.linaro.org/people/pmaydell/qemu-arm: (28 commits)
  target/arm: Restrict arm_cpu_exec_interrupt() to TCG accelerator
  hw/misc: Move some arm-related files from specific_ss into softmmu_ss
  hw/arm/boot: set initrd with #address-cells type in fdt
  hw/intc: Convert TYPE_KVM_ARM_ITS to 3-phase reset
  hw/intc: Convert TYPE_ARM_GICV3_ITS to 3-phase reset
  hw/intc: Convert TYPE_ARM_GICV3_ITS_COMMON to 3-phase reset
  hw/intc: Convert TYPE_KVM_ARM_GICV3 to 3-phase reset
  hw/intc: Convert TYPE_ARM_GICV3_COMMON to 3-phase reset
  hw/intc: Convert TYPE_ARM_GIC_KVM to 3-phase reset
  hw/intc: Convert TYPE_ARM_GIC_COMMON to 3-phase reset
  hw/arm: Convert TYPE_ARM_SMMUV3 to 3-phase reset
  hw/arm: Convert TYPE_ARM_SMMU to 3-phase reset
  target/arm: Report FEAT_EVT for TCG '-cpu max'
  target/arm: Implement HCR_EL2.TID4 traps
  target/arm: Implement HCR_EL2.TICAB,TOCU traps
  target/arm: Implement HCR_EL2.TTLBOS traps
  target/arm: Implement HCR_EL2.TTLBIS traps
  target/arm: Allow relevant HCR bits to be written for FEAT_EVT
  hw/intc/arm_gicv3: Fix GICD_TYPER ITLinesNumber advertisement
  target/arm: Add Cortex-A55 CPU
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-12-15 17:40:57 +00:00
Thomas HuthandPeter Maydell 3d81e8cf0c hw/misc: Move some arm-related files from specific_ss into softmmu_ss
The header target/arm/kvm-consts.h checks CONFIG_KVM which is marked as
poisoned in common code, so the files that include this header have to
be added to specific_ss and recompiled for each, qemu-system-arm and
qemu-system-aarch64. However, since the kvm headers are only optionally
used in kvm-constants.h for some sanity checks, we can additionally
check the NEED_CPU_H macro first to avoid the poisoned CONFIG_KVM macro,
so kvm-constants.h can also be used from "common" files (without the
sanity checks - which should be OK since they are still done from other
target-specific files instead). This way, and by adjusting some other
include statements in the related files here and there, we can move some
files from specific_ss into softmmu_ss, so that they only need to be
compiled once during the build process.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20221202154023.293614-1-thuth@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-12-15 17:37:47 +00:00
Matthew RosatoandThomas Huth 03451953c7 s390x/pci: reset ISM passthrough devices on shutdown and system reset
ISM device firmware stores unique state information that can
can cause a wholesale unmap of the associated IOMMU (e.g. when
we get a termination signal for QEMU) to trigger firmware errors
because firmware believes we are attempting to invalidate entries
that are still in-use by the guest OS (when in fact that guest is
in the process of being terminated or rebooted).
To alleviate this, register both a shutdown notifier (for unexpected
termination cases e.g. virsh destroy) as well as a reset callback
(for cases like guest OS reboot).  For each of these scenarios, trigger
PCI device reset; this is enough to indicate to firmware that the IOMMU
is no longer in-use by the guest OS, making it safe to invalidate any
associated IOMMU entries.

Fixes: 15d0e7942d ("s390x/pci: don't fence interpreted devices without MSI-X")
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Message-Id: <20221209195700.263824-1-mjrosato@linux.ibm.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
[thuth: Adjusted the hunk in s390-pci-vfio.c due to different context]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-12-15 15:02:34 +01:00
Matthew RosatoandThomas Huth df202e3ff3 s390x/pci: shrink DMA aperture to be bound by vfio DMA limit
Currently, s390x-pci performs accounting against the vfio DMA
limit and triggers the guest to clean up mappings when the limit
is reached. Let's go a step further and also limit the size of
the supported DMA aperture reported to the guest based upon the
initial vfio DMA limit reported for the container (if less than
than the size reported by the firmware/host zPCI layer).  This
avoids processing sections of the guest DMA table during global
refresh that, for common use cases, will never be used anway, and
makes exhausting the vfio DMA limit due to mismatch between guest
aperture size and host limit far less likely and more indicitive
of an error.

Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Message-Id: <20221028194758.204007-4-mjrosato@linux.ibm.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-12-15 15:02:34 +01:00
Peter Maydell 503819a347 hw/arm: Convert TYPE_ARM_SMMUV3 to 3-phase reset
Convert the TYPE_ARM_SMMUV3 device to 3-phase reset.  The legacy
reset method doesn't do anything that's invalid in the hold phase, so
the conversion only requires changing it to a hold phase method, and
using the 3-phase versions of the "save the parent reset method and
chain to it" code.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20221109161444.3397405-3-peter.maydell@linaro.org
2022-12-15 11:18:20 +00:00
Gavin ShanandPeter Maydell f40408a9fe hw/arm/virt: Add 'compact-highmem' property
After the improvement to high memory region address assignment is
applied, the memory layout can be changed, introducing possible
migration breakage. For example, VIRT_HIGH_PCIE_MMIO memory region
is disabled or enabled when the optimization is applied or not, with
the following configuration. The configuration is only achievable by
modifying the source code until more properties are added to allow
users selectively disable those high memory regions.

  pa_bits              = 40;
  vms->highmem_redists = false;
  vms->highmem_ecam    = false;
  vms->highmem_mmio    = true;

  # qemu-system-aarch64 -accel kvm -cpu host    \
    -machine virt-7.2,compact-highmem={on, off} \
    -m 4G,maxmem=511G -monitor stdio

  Region             compact-highmem=off         compact-highmem=on
  ----------------------------------------------------------------
  MEM                [1GB         512GB]        [1GB         512GB]
  HIGH_GIC_REDISTS2  [512GB       512GB+64MB]   [disabled]
  HIGH_PCIE_ECAM     [512GB+256MB 512GB+512MB]  [disabled]
  HIGH_PCIE_MMIO     [disabled]                 [512GB       1TB]

In order to keep backwords compatibility, we need to disable the
optimization on machine, which is virt-7.1 or ealier than it. It
means the optimization is enabled by default from virt-7.2. Besides,
'compact-highmem' property is added so that the optimization can be
explicitly enabled or disabled on all machine types by users.

Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Tested-by: Zhenyu Zhang <zhenyzha@redhat.com>
Message-id: 20221029224307.138822-7-gshan@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-12-15 11:18:19 +00:00
Gavin ShanandPeter Maydell 4a4ff9edc6 hw/arm/virt: Improve high memory region address assignment
There are three high memory regions, which are VIRT_HIGH_REDIST2,
VIRT_HIGH_PCIE_ECAM and VIRT_HIGH_PCIE_MMIO. Their base addresses
are floating on highest RAM address. However, they can be disabled
in several cases.

(1) One specific high memory region is likely to be disabled by
    code by toggling vms->highmem_{redists, ecam, mmio}.

(2) VIRT_HIGH_PCIE_ECAM region is disabled on machine, which is
    'virt-2.12' or ealier than it.

(3) VIRT_HIGH_PCIE_ECAM region is disabled when firmware is loaded
    on 32-bits system.

(4) One specific high memory region is disabled when it breaks the
    PA space limit.

The current implementation of virt_set_{memmap, high_memmap}() isn't
optimized because the high memory region's PA space is always reserved,
regardless of whatever the actual state in the corresponding
vms->highmem_{redists, ecam, mmio} flag. In the code, 'base' and
'vms->highest_gpa' are always increased for case (1), (2) and (3).
It's unnecessary since the assigned PA space for the disabled high
memory region won't be used afterwards.

Improve the address assignment for those three high memory region by
skipping the address assignment for one specific high memory region if
it has been disabled in case (1), (2) and (3). The memory layout may
be changed after the improvement is applied, which leads to potential
migration breakage. So 'vms->highmem_compact' is added to control if
the improvement should be applied. For now, 'vms->highmem_compact' is
set to false, meaning that we don't have memory layout change until it
becomes configurable through property 'compact-highmem' in next patch.

Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Tested-by: Zhenyu Zhang <zhenyzha@redhat.com>
Message-id: 20221029224307.138822-6-gshan@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-12-15 11:18:19 +00:00
Peter Maydell 48804eebd4 Merge tag 'pull-misc-2022-12-14' of https://repo.or.cz/qemu/armbru into staging
Miscellaneous patches for 2022-12-14

# gpg: Signature made Wed 14 Dec 2022 15:23:02 GMT
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* tag 'pull-misc-2022-12-14' of https://repo.or.cz/qemu/armbru:
  ppc4xx_sdram: Simplify sdram_ddr_size() to return
  block/vmdk: Simplify vmdk_co_create() to return directly
  cleanup: Tweak and re-run return_directly.cocci
  io: Tidy up fat-fingered parameter name
  qapi: Use returned bool to check for failure (again)
  sockets: Use ERRP_GUARD() where obviously appropriate
  qemu-config: Use ERRP_GUARD() where obviously appropriate
  qemu-config: Make config_parse_qdict() return bool
  monitor: Use ERRP_GUARD() in monitor_init()
  monitor: Simplify monitor_fd_param()'s error handling
  error: Move ERRP_GUARD() to the beginning of the function
  error: Drop a few superfluous ERRP_GUARD()
  error: Drop some obviously superfluous error_propagate()
  Drop more useless casts from void * to pointer

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-12-15 10:13:46 +00:00
Markus Armbruster 9492718b7c qapi misc: Elide redundant has_FOO in generated C
The has_FOO for pointer-valued FOO are redundant, except for arrays.
They are also a nuisance to work with.  Recent commit "qapi: Start to
elide redundant has_FOO in generated C" provided the means to elide
them step by step.  This is the step for qapi/misc.json.

Said commit explains the transformation in more detail.  The invariant
violations mentioned there do not occur here.

Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20221104160712.3005652-18-armbru@redhat.com>
2022-12-14 20:04:47 +01:00
Markus Armbruster 66997c42e0 cleanup: Tweak and re-run return_directly.cocci
Tweak the semantic patch to drop redundant parenthesis around the
return expression.

Coccinelle drops a comment in hw/rdma/vmw/pvrdma_cmd.c; restored
manually.

Coccinelle messes up vmdk_co_create(), not sure why.  Change dropped,
will be done manually in the next commit.

Line breaks in target/avr/cpu.h and hw/rdma/vmw/pvrdma_cmd.c tidied up
manually.

Whitespace in tools/virtiofsd/fuse_lowlevel.c tidied up manually.

checkpatch.pl complains "return of an errno should typically be -ve"
two times for hw/9pfs/9p-synth.c.  Preexisting, the patch merely makes
it visible to checkpatch.pl.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221122134917.1217307-2-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-12-14 16:19:35 +01:00
Markus Armbruster 10220d2f96 io: Tidy up fat-fingered parameter name
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221121085054.683122-11-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2022-12-14 16:19:35 +01:00
Markus Armbruster f766e6dc6a qemu-config: Make config_parse_qdict() return bool
This simplifies error checking.

Cc: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221121085054.683122-7-armbru@redhat.com>
2022-12-14 16:19:35 +01:00
Song GaoandStefan Hajnoczi edc93f455f Revert "hw/loongarch/virt: Add cfi01 pflash device"
This reverts commit 14dccc8ea6.

Signed-off-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221205113007.683505-1-gaosong@loongson.cn>
2022-12-05 11:24:35 -05:00
Stefan Hajnoczi 777fa06376 Merge tag 'pull-loongarch-20221202' of https://gitlab.com/gaosong/qemu into staging
pull for 7.2-rc4

# -----BEGIN PGP SIGNATURE-----
#
# iLMEAAEIAB0WIQS4/x2g0v3LLaCcbCxAov/yOSY+3wUCY4nPggAKCRBAov/yOSY+
# 36cRA/9JFWuDT0TDhu0g1x0ktvpV+1GBPzkEXR2CVhDf2bly1ka2cLEtPUpiSE8E
# Osw9cEBR3qX+LyO3gA0GySUr9jsc/yRqD38OL8HGZTCmZ/qCnHJSXvy+6a0LWYQq
# ZIrFat7UjiTTeErkSQ6C4bUIl6YoUUSP0X2XxO6YF5j4uhGyqA==
# =sVrx
# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 02 Dec 2022 05:12:18 EST
# gpg:                using RSA key B8FF1DA0D2FDCB2DA09C6C2C40A2FFF239263EDF
# gpg: Good signature from "Song Gao <m17746591750@163.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: B8FF 1DA0 D2FD CB2D A09C  6C2C 40A2 FFF2 3926 3EDF

* tag 'pull-loongarch-20221202' of https://gitlab.com/gaosong/qemu:
  hw/loongarch/virt: Add cfi01 pflash device

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2022-12-04 11:07:13 -05:00
Stefan Hajnoczi 42f3253c34 Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging
virtio: regression fix

Fixes regression with migration and vsock, as fixing that
exposes some known issues in vhost user cleanup, this attempts
to fix those as well. More work on vhost user is needed :)

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# -----BEGIN PGP SIGNATURE-----
#
# iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAmOIWaEPHG1zdEByZWRo
# YXQuY29tAAoJECgfDbjSjVRp+RQH/2PVAjD/GA3zF5F3Z07vH51c55T6tluZ85c3
# 4u66SSkF5JR1hATCujYCtrt9V0mnqhmhhm4gJH5xcsynFjjyIXd2dDrTFRpCtRgn
# icXOmYCc9pCu8XsluJnWvY/5r/KEDxqmGVE8Kyhz551QjvsBkezhI9x9vhJZJLCn
# Xn1XQ/3jpUcQLwasu8AxZb0IDW8WdCtonbke6xIyMzOYGR2bnRdXlDXVVG1zJ/SZ
# eS3HUad71VekhfzWq0fx8yEJnfvbes9vo007y8rOGdHOcMneWGAie52W1dOBhclh
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# =ZkaX
# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 01 Dec 2022 02:37:05 EST
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu:
  include/hw: VM state takes precedence in virtio_device_should_start
  hw/virtio: generalise CHR_EVENT_CLOSED handling
  hw/virtio: add started_vu status field to vhost-user-gpio
  vhost: enable vrings in vhost_dev_start() for vhost-user devices
  tests/qtests: override "force-legacy" for gpio virtio-mmio tests

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2022-12-04 11:00:26 -05:00
Xiaojuan YangandSong Gao 14dccc8ea6 hw/loongarch/virt: Add cfi01 pflash device
Add cfi01 pflash device for LoongArch virt machine

Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221130100647.398565-1-yangxiaojuan@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2022-12-02 18:03:05 +08:00
Alex BennéeandMichael S. Tsirkin 4987e5bf2e include/hw: VM state takes precedence in virtio_device_should_start
The VM status should always preempt the device status for these
checks. This ensures the device is in the correct state when we
suspend the VM prior to migrations. This restores the checks to the
order they where in before the refactoring moved things around.

While we are at it lets improve our documentation of the various
fields involved and document the two functions.

Fixes: 9f6bcfd99f (hw/virtio: move vm_running check to virtio_device_started)
Fixes: 259d69c00b (hw/virtio: introduce virtio_device_should_start)
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20221130112439.2527228-6-alex.bennee@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-12-01 02:30:18 -05:00
Alex BennéeandMichael S. Tsirkin 71e076a07d hw/virtio: generalise CHR_EVENT_CLOSED handling
..and use for both virtio-user-blk and virtio-user-gpio. This avoids
the circular close by deferring shutdown due to disconnection until a
later point. virtio-user-blk already had this mechanism in place so
generalise it as a vhost-user helper function and use for both blk and
gpio devices.

While we are at it we also fix up vhost-user-gpio to re-establish the
event handler after close down so we can reconnect later.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Message-Id: <20221130112439.2527228-5-alex.bennee@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-12-01 02:30:13 -05:00
Alex BennéeandMichael S. Tsirkin 060f4a9440 hw/virtio: add started_vu status field to vhost-user-gpio
As per the fix to vhost-user-blk in f5b22d06fb (vhost: recheck dev
state in the vhost_migration_log routine) we really should track the
connection and starting separately.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20221130112439.2527228-4-alex.bennee@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-12-01 02:30:09 -05:00
Stefano GarzarellaandMichael S. Tsirkin 4daa5054c5 vhost: enable vrings in vhost_dev_start() for vhost-user devices
Commit 02b61f38d3 ("hw/virtio: incorporate backend features in features")
properly negotiates VHOST_USER_F_PROTOCOL_FEATURES with the vhost-user
backend, but we forgot to enable vrings as specified in
docs/interop/vhost-user.rst:

    If ``VHOST_USER_F_PROTOCOL_FEATURES`` has not been negotiated, the
    ring starts directly in the enabled state.

    If ``VHOST_USER_F_PROTOCOL_FEATURES`` has been negotiated, the ring is
    initialized in a disabled state and is enabled by
    ``VHOST_USER_SET_VRING_ENABLE`` with parameter 1.

Some vhost-user front-ends already did this by calling
vhost_ops.vhost_set_vring_enable() directly:
- backends/cryptodev-vhost.c
- hw/net/virtio-net.c
- hw/virtio/vhost-user-gpio.c

But most didn't do that, so we would leave the vrings disabled and some
backends would not work. We observed this issue with the rust version of
virtiofsd [1], which uses the event loop [2] provided by the
vhost-user-backend crate where requests are not processed if vring is
not enabled.

Let's fix this issue by enabling the vrings in vhost_dev_start() for
vhost-user front-ends that don't already do this directly. Same thing
also in vhost_dev_stop() where we disable vrings.

[1] https://gitlab.com/virtio-fs/virtiofsd
[2] https://github.com/rust-vmm/vhost/blob/240fc2966/crates/vhost-user-backend/src/event_loop.rs#L217

Fixes: 02b61f38d3 ("hw/virtio: incorporate backend features in features")
Reported-by: German Maglione <gmaglione@redhat.com>
Tested-by: German Maglione <gmaglione@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Acked-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Message-Id: <20221123131630.52020-1-sgarzare@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20221130112439.2527228-3-alex.bennee@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-12-01 02:30:04 -05:00
Stefan Weil viaandStefan Hajnoczi ac14949821 Add G_GNUC_PRINTF to function qemu_set_info_str and fix related issues
With the G_GNUC_PRINTF function attribute the compiler detects
two potential insecure format strings:

../../../net/stream.c:248:31: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
    qemu_set_info_str(&s->nc, uri);
                              ^~~
../../../net/stream.c:322:31: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
    qemu_set_info_str(&s->nc, uri);
                              ^~~

There are also two other warnings:

../../../net/socket.c:182:35: warning: zero-length gnu_printf format string [-Wformat-zero-length]
  182 |         qemu_set_info_str(&s->nc, "");
      |                                   ^~
../../../net/stream.c:170:35: warning: zero-length gnu_printf format string [-Wformat-zero-length]
  170 |         qemu_set_info_str(&s->nc, "");

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221126152507.283271-7-sw@weilnetz.de>
2022-11-27 13:36:17 -05:00
Stefan Hajnoczi 0b710ae5c5 Merge tag 'pull-target-arm-20221121' of https://git.linaro.org/people/pmaydell/qemu-arm into staging
target-arm queue:
 * hw/sd: Fix sun4i allwinner-sdhost for U-Boot
 * hw/intc: add implementation of GICD_IIDR to Arm GIC
 * tests/avocado/boot_linux.py: Bump aarch64 virt test timeout
 * target/arm: Limit LPA2 effective output address when TCR.DS == 0

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# gpg: Signature made Mon 21 Nov 2022 07:59:23 EST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
# gpg:                 aka "Peter Maydell <peter@archaic.org.uk>" [unknown]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* tag 'pull-target-arm-20221121' of https://git.linaro.org/people/pmaydell/qemu-arm:
  target/arm: Limit LPA2 effective output address when TCR.DS == 0
  tests/avocado/boot_linux.py: Bump aarch64 virt test timeout to 720s
  hw/intc: add implementation of GICD_IIDR to Arm GIC
  hw/intc: clean-up access to GIC multi-byte registers
  hw/sd: Fix sun4i allwinner-sdhost for U-Boot

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2022-11-21 09:26:34 -05:00
Strahinja JankovicandPeter Maydell 93e2da36ed hw/sd: Fix sun4i allwinner-sdhost for U-Boot
Trying to run U-Boot for Cubieboard (Allwinner A10) fails because it cannot
access SD card. The problem is that FIFO register in current
allwinner-sdhost implementation is at the address corresponding to
Allwinner H3, but not A10.
Linux kernel is not affected since Linux driver uses DMA access and does
not use FIFO register for reading/writing.

This patch adds new class parameter `is_sun4i` and based on that
parameter uses register at offset 0x100 either as FIFO register (if
sun4i) or as threshold register (if not sun4i; in this case register at
0x200 is FIFO register).

Tested with U-Boot and Linux kernel image built for Cubieboard and
OrangePi PC.

Signed-off-by: Strahinja Jankovic <strahinja.p.jankovic@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20221112214900.24152-1-strahinja.p.jankovic@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-11-21 11:45:12 +00:00
Peter XuandJuan Quintela cedb70eafb migration: Use non-atomic ops for clear log bitmap
Since we already have bitmap_mutex to protect either the dirty bitmap or
the clear log bitmap, we don't need atomic operations to set/clear/test on
the clear log bitmap.  Switching all ops from atomic to non-atomic
versions, meanwhile touch up the comments to show which lock is in charge.

Introduced non-atomic version of bitmap_test_and_clear_atomic(), mostly the
same as the atomic version but simplified a few places, e.g. dropped the
"old_bits" variable, and also the explicit memory barriers.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2022-11-21 11:58:10 +01:00