linux-kernel - Re: [PATCH 0/12] KVM: SVM: Add support for VMCB state caching

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Tue, 07 Dec 2010 11:50:12 +0200
From:	Avi Kivity <avi@...hat.com>
To:	Joerg Roedel <joerg.roedel@....com>
CC:	Marcelo Tosatti <mtosatti@...hat.com>, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/12] KVM: SVM: Add support for VMCB state caching

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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/