Re: [PATCH v2.2] KVM: SVM: Add support for AMD's OSVW feature in guests

2012-01-10 Thread Marcelo Tosatti
On Mon, Jan 09, 2012 at 02:00:35PM -0500, 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

[PATCH v2.2] KVM: SVM: Add support for AMD's OSVW feature in guests

2012-01-09 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