-Original Message-
From: Avi Kivity [mailto:a...@redhat.com]
Sent: Monday, September 10, 2012 4:07 PM
To: Hao, Xudong
Cc: kvm@vger.kernel.org; Zhang, Xiantao; joerg.roe...@amd.com
Subject: Re: [PATCH v2] kvm/fpu: Enable fully eager restore kvm FPU
Avi, I'm not sure if I fully
On 09/11/2012 09:43 AM, Hao, Xudong wrote:
-Original Message-
From: Avi Kivity [mailto:a...@redhat.com]
Sent: Monday, September 10, 2012 4:07 PM
To: Hao, Xudong
Cc: kvm@vger.kernel.org; Zhang, Xiantao; joerg.roe...@amd.com
Subject: Re: [PATCH v2] kvm/fpu: Enable fully eager restore
-Original Message-
From: Avi Kivity [mailto:a...@redhat.com]
Sent: Tuesday, September 11, 2012 3:54 PM
To: Hao, Xudong
Cc: kvm@vger.kernel.org; Zhang, Xiantao; joerg.roe...@amd.com
Subject: Re: [PATCH v2] kvm/fpu: Enable fully eager restore kvm FPU
On 09/11/2012 09:43 AM, Hao
On 09/10/2012 06:29 AM, Hao, Xudong wrote:
Doesn't help. We can have:
host: deactivate fpu for some reason
guest: set cr4.osxsave, xcr0.bit3
host: enter guest with deactivated fpu
guest: touch fpu
result: host fpu corrupted.
Avi, I'm not sure if I fully understand of you. Do you
-Original Message-
From: kvm-ow...@vger.kernel.org [mailto:kvm-ow...@vger.kernel.org] On
Behalf Of Avi Kivity
Sent: Thursday, September 06, 2012 4:16 PM
To: Hao, Xudong
Cc: kvm@vger.kernel.org; Zhang, Xiantao; joerg.roe...@amd.com
Subject: Re: [PATCH v2] kvm/fpu: Enable fully eager
On 09/06/2012 05:13 AM, Hao, Xudong wrote:
-Original Message-
From: Avi Kivity [mailto:a...@redhat.com]
Sent: Wednesday, September 05, 2012 9:13 PM
To: Hao, Xudong
Cc: kvm@vger.kernel.org; Zhang, Xiantao; joerg.roe...@amd.com
Subject: Re: [PATCH v2] kvm/fpu: Enable fully eager
On 09/05/2012 04:26 AM, Xudong Hao wrote:
Enable KVM FPU fully eager restore, if there is other FPU state which isn't
tracked by CR0.TS bit.
Changes from v1:
Expand KVM_XSTATE_LAZY to 64 bits before negating it.
Signed-off-by: Xudong Hao xudong@intel.com
---
-Original Message-
From: Avi Kivity [mailto:a...@redhat.com]
Sent: Wednesday, September 05, 2012 9:13 PM
To: Hao, Xudong
Cc: kvm@vger.kernel.org; Zhang, Xiantao; joerg.roe...@amd.com
Subject: Re: [PATCH v2] kvm/fpu: Enable fully eager restore kvm FPU
On 09/05/2012 04:26 AM, Xudong
Enable KVM FPU fully eager restore, if there is other FPU state which isn't
tracked by CR0.TS bit.
Changes from v1:
Expand KVM_XSTATE_LAZY to 64 bits before negating it.
Signed-off-by: Xudong Hao xudong@intel.com
---
arch/x86/include/asm/kvm.h |4
arch/x86/kvm/x86.c | 13
