Re: [Qemu-devel] [PATCH V5] target-i386: Enabling IA32_TSC_ADJUST for QEMU KVM guest VMs

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Am 27.11.2012 06:32, schrieb Will Auld:
> CPUID.7.0.EBX[1]=1 indicates IA32_TSC_ADJUST MSR 0x3b is supported
> 
> Basic design is to emulate the MSR by allowing reads and writes to the
> hypervisor vcpu specific locations to store the value of the emulated MSRs.
> In this way the IA32_TSC_ADJUST value will be included in all reads to
> the TSC MSR 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 Auld <will.auld@xxxxxxxxx>

Reviewed-by: Andreas Färber <afaerber@xxxxxxx>

from the CPU perspective.

Thanks,
Andreas

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