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From: Paolo Bonzini <pbonzini@redhat.com>
To: Xinlong Lin <linxl3@wangsu.com>,
	Eiichi Tsukata <eiichi.tsukata@nutanix.com>
Cc: "sean.j.christopherson" <sean.j.christopherson@intel.com>,
	vkuznets <vkuznets@redhat.com>, wanpengli <wanpengli@tencent.com>,
	jmattson <jmattson@google.com>, joro <joro@8bytes.org>,
	"tglx@linutronix.de" <tglx@linutronix.de>,
	"mingo@redhat.com" <mingo@redhat.com>,
	"bp@alien8.de" <bp@alien8.de>, "x86@kernel.org" <x86@kernel.org>,
	"hpa@zytor.com" <hpa@zytor.com>, kvm <kvm@vger.kernel.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Felipe Franciosi <felipe@nutanix.com>,
	"rkrcmar@redhat.com" <rkrcmar@redhat.com>,
	Andrea Arcangeli <aarcange@redhat.com>
Subject: Re: [RFC PATCH] KVM: x86: Fix APIC page invalidation race
Date: Fri, 19 Jun 2020 14:12:16 +0200	[thread overview]
Message-ID: <09bc7ef5-445f-b2df-aa55-a23710ecc481@redhat.com> (raw)
In-Reply-To: <202006191317431160122@wangsu.com>

On 19/06/20 07:17, Xinlong Lin wrote:
>>     Because of the above race, there can be a mismatch between the
>>     host physical address stored in the APIC_ACCESS_PAGE VMCS field and
>>     the host physical address stored in the EPT entry for the APIC GPA
>>     (0xfee0000).  When this happens, the processor will not trap APIC 
> 
> Is the APIC GPA shoud be 0xfee00000?

Yes, there's a missing zero.

Paolo

      parent reply	other threads:[~2020-06-19 12:14 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-06  4:26 [RFC PATCH] KVM: x86: Fix APIC page invalidation race Eiichi Tsukata
2020-06-06  5:00 ` Eiichi Tsukata
2020-06-08 13:13 ` Paolo Bonzini
2020-06-09  1:04   ` Eiichi Tsukata
2020-06-09  9:54     ` Paolo Bonzini
2020-06-09 13:36       ` Eiichi Tsukata
     [not found]       ` <202006191317431160122@wangsu.com>
2020-06-19 12:12         ` Paolo Bonzini [this message]

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