lkml.org 
[lkml]   [2012]   [Jan]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2.1] KVM: SVM: Add support for AMD's OSVW feature in guests
On Fri, Jan 06, 2012 at 11:13:56AM -0500, Boris Ostrovsky wrote:
> From: Boris Ostrovsky <boris.ostrovsky@amd.com>
>
> 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 in a non-C0 state. This is not
> necessary: HLT and IO instructions are intercepted and therefore there is no
> reason for erratum 400 workaround in the guest.
>
> This patch allows us to present a guest with certain errata as fixed,
> regardless of the state of actual hardware.
>
> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@amd.com>

Patch does not apply, please regenerate against
git://git.kernel.org/pub/scm/virt/kvm/kvm.git master branch.



\
 
 \ /
  Last update: 2012-01-09 13:17    [from the cache]
©2003-2011 Jasper Spaans