performs a rdtsc. In this case the guest process will get TSC +
IA32_TSC_ADJUST_hyperviser + vmsc tsc_offset including IA32_TSC_ADJUST_guest.
While the total system semantics changed the semantics as seen by the guest
do not and hence this will not cause a problem.
Signed-off-by: Will Auld
---
individual parameters.
The initial use for this capability is for updating the IA32_TSC_ADJUST
msr while setting the tsc value. It is anticipated that this capability
is useful other tasks.
Signed-off-by: Will Auld
---
arch/x86/include/asm/kvm_host.h | 12 +---
arch/x86/kvm/svm.c
With this version (V5) I have gone back the the V3 implementation of
emulator_set_msr() but changing the
bool to false.
Will Auld (2):
Add code to track call origin for msr assignment.
Enabling IA32_TSC_ADJUST for KVM guest VM support
arch/x86/include/asm/cpufeature.h | 1 +
arch/x86
whether through rdmsr or rdtsc.
As this is a new MSR that the guest may access and modify its value needs
to be migrated along with the other MRSs. The changes here are specifically
for recognizing when IA32_TSC_ADJUST is enabled in CPUID and code added
for migrating its value.
Signed-off-by: Will
whether through rdmsr or rdtsc.
As this is a new MSR that the guest may access and modify its value needs
to be migrated along with the other MRSs. The changes here are specifically
for recognizing when IA32_TSC_ADJUST is enabled in CPUID and code added
for migrating its value.
Signed-off-by: Will
whether through rdmsr or rdtsc.
As this is a new MSR that the guest may access and modify its value needs
to be migrated along with the other MRSs. The changes here are specifically
for recognizing when IA32_TSC_ADJUST is enabled in CPUID and code added
for migrating its value.
Signed-off-by: Will
performs a rdtsc. In this case the guest process will get TSC +
IA32_TSC_ADJUST_hyperviser + vmsc tsc_offset including IA32_TSC_ADJUST_guest.
While the total system semantics changed the semantics as seen by the guest
do not and hence this will not cause a problem.
Signed-off-by: Will Auld
---
individual parameters.
The initial use for this capability is for updating the IA32_TSC_ADJUST
msr while setting the tsc value. It is anticipated that this capability
is useful other tasks.
Signed-off-by: Will Auld
---
arch/x86/include/asm/kvm_host.h | 12 +---
arch/x86/kvm/svm.c
This reversion, V4, addresses a couple of issues I missed from Gleb and Marcelo.
Thanks, Will
Will Auld (2):
Add code to track call origin for msr assignment.
Enabling IA32_TSC_ADJUST for KVM guest VM support
arch/x86/include/asm/cpufeature.h | 1 +
arch/x86/include/asm/kvm_host.h | 15
whether through rdmsr or rdtsc.
As this is a new MSR that the guest may access and modify its value needs
to be migrated along with the other MRSs. The changes here are specifically
for recognizing when IA32_TSC_ADJUST is enabled in CPUID and code added
for migrating its value.
Signed-off-by: Will
performs a rdtsc. In this case the guest process will get TSC +
IA32_TSC_ADJUST_hyperviser + vmsc tsc_offset including IA32_TSC_ADJUST_guest.
While the total system semantics changed the semantics as seen by the guest
do not and hence this will not cause a problem.
Signed-off-by: Will Auld
---
individual parameters.
The initial use for this capability is for updating the IA32_TSC_ADJUST
msr while setting the tsc value. It is anticipated that this capability
is useful other tasks.
Signed-off-by: Will Auld
---
arch/x86/include/asm/kvm_host.h | 12 +---
arch/x86/kvm/svm.c
Resending these as the mail seems to have not fully worked last Wed.
Marcelo,
I have addressed your comments for this patch set (V3), the following patch for
QEMU-KVM and for adding a test
case for tsc_adjust also to follow today.
Thanks,
Will
Will Auld (2):
Add code to track call
whether through rdmsr or rdtsc.
As this is a new MSR that the guest may access and modify its value needs
to be migrated along with the other MRSs. The changes here are specifically
for recognizing when IA32_TSC_ADJUST is enabled in CPUID and code added
for migrating its value.
Signed-off-by: Will
whether through rdmsr or rdtsc.
As this is a new MSR that the guest may access and modify its value needs
to be migrated along with the other MRSs. The changes here are specifically
for recognizing when IA32_TSC_ADJUST is enabled in CPUID and code added
for migrating its value.
Signed-off-by: Will
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