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From: Paolo Bonzini <pbonzini@redhat.com>
To: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Cc: gleb@kernel.org, mtosatti@redhat.com, kvm@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/9] KVM: x86: add pcommit support
Date: Tue, 8 Sep 2015 22:33:44 +0200	[thread overview]
Message-ID: <55EF4628.4070607@redhat.com> (raw)
In-Reply-To: <55EEEDEF.4070902@linux.intel.com>



On 08/09/2015 16:17, Xiao Guangrong wrote:
> 
> BTW, the spec saied:
> 
> | IA32_VMX_PROCBASED_CTLS2[53] (which enumerates support for the
> 1-setting of “PCOMMIT exiting”) is
> | always the same as CPUID.07H:EBX.PCOMMIT[bit 22]. Thus, software can
> set “PCOMMIT exiting” to 1
> | if and only if the PCOMMIT instruction is enumerated via CPUID

Thanks.  Can you add it to the commit message ("allow L1 to catch this
instruction for L2 if, as required by the spec, L1 can enumerate the
PCOMMIT instruction via CPUID").

Paolo

  reply	other threads:[~2015-09-08 20:33 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-21  4:50 [PATCH 0/9] KVM: x86: enable cflushopt/clwb/pcommit and simplify code Xiao Guangrong
2015-08-21  4:50 ` [PATCH 1/9] KVM: MMU: fix use uninitialized value Xiao Guangrong
2015-08-21  4:50 ` [PATCH 2/9] KVM: x86: allow guest to use cflushopt anc clwb Xiao Guangrong
2015-08-21  4:50 ` [PATCH 3/9] KVM: x86: add pcommit support Xiao Guangrong
2015-09-07 11:18   ` Paolo Bonzini
2015-09-08 14:17     ` Xiao Guangrong
2015-09-08 20:33       ` Paolo Bonzini [this message]
2015-08-21  4:50 ` [PATCH 4/9] KVM: VMX: drop rdtscp_enabled check in prepare_vmcs02() Xiao Guangrong
2015-08-21  4:50 ` [PATCH 5/9] KVM: VMX: simplify rdtscp handling in vmx_cpuid_update() Xiao Guangrong
2015-08-21  4:50 ` [PATCH 6/9] KVM: VMX: simplify invpcid " Xiao Guangrong
2015-09-07 11:28   ` Paolo Bonzini
2015-09-08 14:18     ` Xiao Guangrong
2015-08-21  4:50 ` [PATCH 7/9] KVM: VMX: unify SECONDARY_VM_EXEC_CONTROL update Xiao Guangrong
2015-08-21  4:50 ` [PATCH 8/9] KVM: VMX: introduce set_clear_2nd_exec_ctrl() Xiao Guangrong
2015-09-07 11:27   ` Paolo Bonzini
2015-09-08 14:24     ` Xiao Guangrong
2015-09-08 20:32       ` Paolo Bonzini
2015-08-21  4:50 ` [PATCH 9/9] KVM: VMX: drop rdtscp_enabled field Xiao Guangrong

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