From: Marcelo Tosatti <mtosatti@redhat.com>
To: Avi Kivity <avi@redhat.com>
Cc: Sheng Yang <sheng@linux.intel.com>,
Joerg Roedel <joerg.roedel@amd.com>,
kvm@vger.kernel.org
Subject: Re: [PATCH 5/5] KVM: VMX: Give the guest ownership of cr0.ts when the fpu is active
Date: Tue, 5 Jan 2010 22:40:30 -0200 [thread overview]
Message-ID: <20100106004030.GB11233@amt.cnet> (raw)
In-Reply-To: <1262190342-18611-6-git-send-email-avi@redhat.com>
On Wed, Dec 30, 2009 at 06:25:42PM +0200, Avi Kivity wrote:
> If the guest fpu is loaded, there is nothing interesing about cr0.ts; let
> the guest play with it as it will. This makes context switches between fpu
> intensive guest processes faster, as we won't trap the clts and cr0 write
> instructions.
Looks fine.
next prev parent reply other threads:[~2010-01-06 0:41 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-30 16:25 [PATCH 0/5] Lazy fpu, cr0.ts Avi Kivity
2009-12-30 16:25 ` [PATCH 1/5] KVM: VMX: trace clts and lmsw instructions as cr accesses Avi Kivity
2009-12-30 16:25 ` [PATCH 2/5] KVM: Replace read accesses of vcpu->arch.cr0 by an accessor Avi Kivity
2009-12-30 16:25 ` [PATCH 3/5] KVM: VMX: Allow the guest to own some cr0 bits Avi Kivity
2009-12-30 16:25 ` [PATCH 4/5] KVM: Lazify fpu activation and deactivation Avi Kivity
2010-01-06 0:25 ` Marcelo Tosatti
2010-01-06 3:18 ` Avi Kivity
2010-01-06 6:21 ` Avi Kivity
2010-01-06 10:47 ` Joerg Roedel
2010-01-06 11:00 ` Avi Kivity
2010-01-14 13:11 ` Avi Kivity
2010-01-14 13:11 ` Avi Kivity
2010-01-14 14:34 ` Lucas Meneghel Rodrigues
2010-01-14 15:04 ` Avi Kivity
2009-12-30 16:25 ` [PATCH 5/5] KVM: VMX: Give the guest ownership of cr0.ts when the fpu is active Avi Kivity
2010-01-06 0:40 ` Marcelo Tosatti [this message]
2009-12-31 9:23 ` [PATCH 0/5] Lazy fpu, cr0.ts Sheng Yang
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