Commit Graph

80764 Commits

Author SHA1 Message Date
Avi Kivity 298101da2f KVM: Generalize exception injection mechanism
Instead of each subarch doing its own thing, add an API for queuing an
injection, and manage failed exception injection centerally (i.e., if
an inject failed due to a shadow page fault, we need to requeue it).

Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:18 +02:00
Marcelo Tosatti 4bf8ed8dd2 KVM: MMU: Remove unused prev_shadow_ent variable from fetch()
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:18 +02:00
npiggin@suse.de e4a533a416 KVM: Convert KVM from ->nopage() to ->fault()
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: kvm-devel@lists.sourceforge.net
Cc: avi@qumranet.com
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:18 +02:00
Hollis Blanchard 53e0aa7b65 KVM: Portability: Create kvm_arch_vcpu_runnable() function
This abstracts the detail of x86 hlt and INIT modes into a function.

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Acked-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:17 +02:00
Hollis Blanchard e01a1b570f KVM: Portability: Stop including x86-specific headers in kvm_main.c
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:17 +02:00
Hollis Blanchard e2174021cf KVM: Portability: Move IO device definitions to its own header file
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Acked-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:17 +02:00
Hollis Blanchard d77a39d982 KVM: Portability: Move address types to their own header file
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Acked-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:17 +02:00
Zhang Xiantao b1fd3d30ba KVM: Extend ioapic code to support iosapic
iosapic supports an additional mmio EOI register compared to ioapic.

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:17 +02:00
Zhang Xiantao 0c7ac28d3d KVM: Replace dest_Lowest_Prio and dest_Fixed with self-defined macros
Change
  dest_Loest_Prio -> IOAPIC_LOWEST_PRIORITY
  dest_Fixed -> IOAPIC_FIXED

the original names are x86 specific, while the ioapic code will be reused
for ia64.

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:17 +02:00
Zhang Xiantao 8be5453f95 KVM: Replace kvm_lapic with kvm_vcpu in ioapic/lapic interface
This patch replaces lapic structure with kvm_vcpu in ioapic.c, making ioapic
independent of the local apic, as required by ia64.

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:17 +02:00
Carlo Marcelo Arenas Belon 2b5203ee68 KVM: SVM: Remove KVM specific defines for MSR_EFER
This patch removes the KVM specific defines for MSR_EFER that were being used
in the svm support file and migrates all references to use instead the ones
from the kernel headers that are used everywhere else and that have the same
values.

Signed-off-by: Carlo Marcelo Arenas Belon <carenas@sajinet.com.pe>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:16 +02:00
Avi Kivity fb56dbb31c KVM: Export include/linux/kvm.h only if $ARCH actually supports KVM
Currently, make headers_check barfs due to <asm/kvm.h>, which <linux/kvm.h>
includes, not existing.  Rather than add a zillion <asm/kvm.h>s, export kvm.h
only if the arch actually supports it.

Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:16 +02:00
Zhang Xiantao d230878471 KVM: Correct kvm_init() error paths not freeing bad_pge.
Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:16 +02:00
Zhang Xiantao f77bc6a420 KVM: Portability: Move KVM_INTERRUPT vcpu ioctl to x86.c
Other archs doesn't need it.

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:16 +02:00
Avi Kivity 018a98db74 KVM: x86 emulator: unify four switch statements into two
Unify the special instruction switch with the regular instruction switch,
and the two byte special instruction switch with the regular two byte
instruction switch.  That makes it much easier to find an instruction or
the place an instruction needs to be added in.

Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:16 +02:00
Avi Kivity 111de5d60c KVM: x86 emulator: unify two switches
The rep prefix cleanup left two switch () statements next to each other.
Unify them.

Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:16 +02:00
Avi Kivity b9fa9d6bc6 KVM: x86 emulator: Move rep processing before instruction execution
Currently rep processing is handled somewhere in the middle of instruction
processing.  Move it to a sensible place.

Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:15 +02:00
Jerone Young 51e296258c KVM: Add ifdef in irqchip struct for x86 only structures
This patch fixes a small issue where sturctures:
	kvm_pic_state
	kvm_ioapic_state

are defined inside x86 specific code and may or may not
be defined in anyway for other architectures. The problem
caused is one cannot compile userspace apps (ex. libkvm)
for other archs since a size cannot be determined for these
structures.

Signed-off-by: Jerone Young <jyoung5@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:15 +02:00
Guillaume Thouvenin d7e5117a25 KVM: x86 emulator: cmps instruction
Add emulation for the cmps instruction.  This lets OpenBSD boot on kvm.

Signed-off-by: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:15 +02:00
Sheng Yang e8d8d7fe88 KVM: x86 emulator: Rename 'cr2' to 'memop'
Previous patches have removed the dependency on cr2; we can now stop passing
it to the emulator and rename uses to 'memop'.

Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:15 +02:00
Izik Eidus 448353caea KVM: MMU: mark pages that were inserted to the shadow pages table as accessed
Mark guest pages as accessed when removed from the shadow page tables for
better lru processing.

Signed-off-by: Izik Eidus <izike@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:15 +02:00
Avi Kivity eb9774f0d6 KVM: Remove misleading check for mmio during event injection
mmio was already handled in kvm_arch_vcpu_ioctl_run(), so no need to check
again.

Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:15 +02:00
Avi Kivity f21b8bf4cc KVM: x86 emulator: address size and operand size overrides are sticky
Current implementation is to toggle, which is incorrect.  Patch ported from
corresponding Xen code.

Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:14 +02:00
Guillaume Thouvenin 90e0a28f6b KVM: x86 emulator: Make a distinction between repeat prefixes F3 and F2
cmps and scas instructions accept repeat prefixes F3 and F2. So in
order to emulate those prefixed instructions we need to be able to know
if prefixes are REP/REPE/REPZ or REPNE/REPNZ. Currently kvm doesn't make
this distinction. This patch introduces this distinction.

Signed-off-by: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:14 +02:00
Zhang Xiantao e9f85cde99 KVM: Portability: Move unalias_gfn to arch dependent file
Non-x86 archs don't need this mechanism. Move it to arch, and
keep its interface in common.

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Acked-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 17:53:14 +02:00