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Re: [PATCH] x86/fpu: Fix get_xsave_addr which returns error pointer to KVM

From Dave Hansen <dave.hansen@intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH] x86/fpu: Fix get_xsave_addr which returns error pointer to KVM
Date 2015-11-10 23:50 +0100
Message-ID <qtpTH-2Jl-19@gated-at.bofh.it> (permalink)
References <qrLbY-2xT-21@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 11/06/2015 01:00 AM, Huaitong Han wrote:
> when KVM uses the get_xsave_addr, xsave parameter belongs to guest vcpu, if
> xsave is replaced with current task (host) xsave, get_xsave_addr will return error
> xsave addr to KVM.
> 
> Signed-off-by: Huaitong Han <huaitong.han@intel.com>

Looks good to me.  It was completely bogus that we passed 'xsave' in
there and then just wrote over it.

Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>

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Thread

[PATCH] x86/fpu: Fix get_xsave_addr which returns error pointer to KVM Huaitong Han <huaitong.han@intel.com> - 2015-11-06 10:10 +0100
  Re: [PATCH] x86/fpu: Fix get_xsave_addr which returns error pointer  to KVM Dave Hansen <dave.hansen@intel.com> - 2015-11-10 23:50 +0100
  [tip:x86/urgent] x86/fpu: Fix get_xsave_addr()   behavior under virtualization tip-bot for Huaitong Han <tipbot@zytor.com> - 2015-11-12 14:30 +0100

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