Re: [PATCH] KVM: SVM: Add support for AMD's OSVW feature in guests

2011-12-27 Thread Avi Kivity
On 12/27/2011 08:51 AM, Boris Ostrovsky wrote: > On 12/26/11 08:53, Avi Kivity wrote: >> On 12/19/2011 07:46 PM, Boris Ostrovsky wrote: >>> From: Boris Ostrovsky >>> >>> In some cases guests should not provide workarounds for errata even >>> when the >>> physical processor is affected. For example,

Re: [PATCH] KVM: SVM: Add support for AMD's OSVW feature in guests

2011-12-26 Thread Boris Ostrovsky
On 12/26/11 08:53, Avi Kivity wrote: On 12/19/2011 07:46 PM, Boris Ostrovsky wrote: From: Boris Ostrovsky In some cases guests should not provide workarounds for errata even when the physical processor is affected. For example, because of erratum 400 on family 10h processors a Linux guest will

Re: [PATCH] KVM: SVM: Add support for AMD's OSVW feature in guests

2011-12-26 Thread Avi Kivity
On 12/19/2011 07:46 PM, Boris Ostrovsky wrote: > From: Boris Ostrovsky > > In some cases guests should not provide workarounds for errata even when the > physical processor is affected. For example, because of erratum 400 on family > 10h processors a Linux guest will read an MSR (resulting in VMEX

[PATCH] KVM: SVM: Add support for AMD's OSVW feature in guests

2011-12-19 Thread Boris Ostrovsky
From: Boris Ostrovsky In some cases guests should not provide workarounds for errata even when the physical processor is affected. For example, because of erratum 400 on family 10h processors a Linux guest will read an MSR (resulting in VMEXIT) before going to idle in order to avoid getting stuck