From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: KarimAllah Ahmed <karahmed@amazon.de>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Radim Krčmář" <rkrcmar@redhat.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Ingo Molnar" <mingo@redhat.com>,
"H . Peter Anvin" <hpa@zytor.com>,
x86@kernel.org
Subject: Re: [PATCH v3] X86/VMX: Disable VMX preemption timer if MWAIT is not intercepted
Date: Tue, 10 Apr 2018 12:21:36 -0400 [thread overview]
Message-ID: <20180410162136.GA6602@char.us.oracle.com> (raw)
In-Reply-To: <1523362546-20909-1-git-send-email-karahmed@amazon.de>
On Tue, Apr 10, 2018 at 02:15:46PM +0200, KarimAllah Ahmed wrote:
> The VMX-preemption timer is used by KVM as a way to set deadlines for the
> guest (i.e. timer emulation). That was safe till very recently when
> capability KVM_X86_DISABLE_EXITS_MWAIT to disable intercepting MWAIT was
> introduced. According to Intel SDM 25.5.1:
Would it make sense to remove the '25.5.1' and just have the chapter name, etc
as those do move around?
next prev parent reply other threads:[~2018-04-10 16:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-10 12:15 [PATCH v3] X86/VMX: Disable VMX preemption timer if MWAIT is not intercepted KarimAllah Ahmed
2018-04-10 12:46 ` Paolo Bonzini
2018-04-10 16:21 ` Konrad Rzeszutek Wilk [this message]
2018-04-11 1:24 ` Wanpeng Li
2018-04-11 9:33 ` Raslan, KarimAllah
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