From: Avi Kivity <avi@redhat.com>
To: Joerg Roedel <joerg.roedel@amd.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/12] KVM: SVM: Add support for VMCB state caching
Date: Tue, 07 Dec 2010 11:50:12 +0200 [thread overview]
Message-ID: <4CFE0354.6070607@redhat.com> (raw)
In-Reply-To: <1291373159-4822-1-git-send-email-joerg.roedel@amd.com>
On 12/03/2010 12:45 PM, Joerg Roedel wrote:
> Hi Avi, Hi Marcelo,
>
> here is a patch-set which adds support for VMCB state caching to KVM.
> This is a new CPU feature where software can mark certain parts of the
> VMCB as unchanged since the last vmexit and the hardware can then avoid
> reloading these parts from memory.
>
> The feature is implemented downwards-compatible in hardware, so a 0-bit
> means the state has changed and needs to be reloaded. This makes it
> possible to implement the bits without checking for the feature, as done
> in this patch-set (another reason is that the check is as expensive as
> clearing the bit). Processors which do not implement VMCB state
> caching just ignore these bits.
>
> These patches were tested with multiple guests (Windows, Linux, also in
> parallel) and also with nested-svm.
>
> The patches apply on-top of the intercept mask wrapping patch-set I sent
> earlier this week. Your feedback is appreciated.
>
Applied, thanks.
--
error compiling committee.c: too many arguments to function
prev parent reply other threads:[~2010-12-07 9:50 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-03 10:45 [PATCH 0/12] KVM: SVM: Add support for VMCB state caching Joerg Roedel
2010-12-03 10:45 ` [PATCH 01/12] KVM: SVM: Add clean-bits infrastructure code Joerg Roedel
2010-12-03 12:15 ` Roedel, Joerg
2010-12-03 10:45 ` [PATCH 02/12] KVM: SVM: Add clean-bit for intercetps, tsc-offset and pause filter count Joerg Roedel
2010-12-03 10:45 ` [PATCH 03/12] KVM: SVM: Add clean-bit for IOPM_BASE and MSRPM_BASE Joerg Roedel
2010-12-03 10:45 ` [PATCH 04/12] KVM: SVM: Add clean-bit for the ASID Joerg Roedel
2010-12-03 10:45 ` [PATCH 05/12] KVM: SVM: Add clean-bit for interrupt state Joerg Roedel
2010-12-06 19:29 ` Marcelo Tosatti
2010-12-07 8:23 ` Joerg Roedel
2010-12-03 10:45 ` [PATCH 06/12] KVM: SVM: Add clean-bit for NPT state Joerg Roedel
2010-12-03 10:45 ` [PATCH 07/12] KVM: SVM: Add clean-bit for control registers Joerg Roedel
2010-12-03 10:45 ` [PATCH 08/12] KVM: SVM: Add clean-bit for DR6 and DR7 Joerg Roedel
2010-12-03 10:45 ` [PATCH 09/12] KVM: SVM: Add clean-bit for GDT and IDT Joerg Roedel
2010-12-03 10:45 ` [PATCH 10/12] KVM: SVM: Add clean-bit for Segements and CPL Joerg Roedel
2010-12-03 10:45 ` [PATCH 11/12] KVM: SVM: Add clean-bit for CR2 register Joerg Roedel
2010-12-03 10:45 ` [PATCH 12/12] KVM: SVM: Add clean-bit for LBR state Joerg Roedel
2010-12-06 19:49 ` [PATCH 0/12] KVM: SVM: Add support for VMCB state caching Marcelo Tosatti
2010-12-07 8:26 ` Joerg Roedel
2010-12-07 9:50 ` Avi Kivity [this message]
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