From: Marcelo Tosatti <mtosatti@redhat.com>
To: "Yang, Wei Y" <wei.y.yang@intel.com>
Cc: Avi Kivity <avi@redhat.com>, "kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: Re: [PATCH v6] Enable CPU SMEP feature for QEMU-KVM
Date: Wed, 1 Jun 2011 10:20:28 -0300 [thread overview]
Message-ID: <20110601132028.GA10531@amt.cnet> (raw)
In-Reply-To: <5D8008F58939784290FAB48F5497519844E9278574@shsmsx502.ccr.corp.intel.com>
On Mon, May 30, 2011 at 11:17:42PM +0800, Yang, Wei Y wrote:
> This patchset enables a new CPU feature SMEP (Supervisor Mode Execution
> Protection) in QEMU-KVM. SMEP prevents kernel from executing code in application.
> Updated Intel SDM describes this CPU feature. The document will be published soon.
>
> SMEP is identified by CPUID leaf 7 EBX[7], which is 0 before. Get the right value by query KVM kernel module, so that guest can get SMEP through CPUID.
>
> Changes since v5: no changes.
> Changes since v4: no changes.
> Changes since v3: no changes.
> Changes since v2: no changes.
>
> Signed-off-by: Yang, Wei <wei.y.yang@intel.com>
> Singed-off-by: Shan, Haitao <haitao.shan@intel.com>
> Singed-off-by: Li, Xin <xin.li@intel.com>
Applied to uq/master (zeroing registers in !kvm_enabled case),
and kernel patches, thanks.
prev parent reply other threads:[~2011-06-01 13:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-30 15:17 [PATCH v6] Enable CPU SMEP feature for QEMU-KVM Yang, Wei Y
2011-06-01 13:20 ` Marcelo Tosatti [this message]
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