From: Avi Kivity <avi@redhat.com>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/4] KVM: x86 shared msr infrastructure
Date: Thu, 17 Sep 2009 00:24:27 +0300 [thread overview]
Message-ID: <4AB1578B.2040404@redhat.com> (raw)
In-Reply-To: <20090916212112.GA15550@amt.cnet>
On 09/17/2009 12:21 AM, Marcelo Tosatti wrote:
>> +static struct kvm_shared_msrs_global __read_mostly shared_msrs_global;
>>
> Does this assume the MSRs in question are consistent across CPUs?
>
Yes. And they are.
> I guess that is not true with arch_prctl(ARCH_SET_GS/ARCH_GET_GS) ?
>
These aren't shared MSRs and are saved and restored independently.
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
next prev parent reply other threads:[~2009-09-16 21:24 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-16 12:45 [PATCH 0/4] User return notifiers / just-in-time MSR switching for KVM Avi Kivity
2009-09-16 12:45 ` [PATCH 1/4] core, x86: Add user return notifiers Avi Kivity
2009-09-18 18:14 ` H. Peter Anvin
2009-09-19 6:40 ` [PATCH v2] " Avi Kivity
2009-09-22 9:25 ` Avi Kivity
2009-09-22 9:37 ` Arjan van de Ven
2009-09-22 9:48 ` Avi Kivity
2009-09-22 14:32 ` Ingo Molnar
2009-09-22 14:45 ` Avi Kivity
2009-09-22 15:50 ` Avi Kivity
2009-09-22 17:08 ` Avi Kivity
2009-09-22 15:19 ` H. Peter Anvin
2009-10-01 15:21 ` Avi Kivity
2009-10-01 15:25 ` H. Peter Anvin
2009-10-01 15:30 ` Avi Kivity
2009-10-01 18:33 ` H. Peter Anvin
2009-09-22 16:50 ` Peter Zijlstra
2009-09-22 16:52 ` Avi Kivity
2009-09-22 16:55 ` Peter Zijlstra
2009-09-22 17:05 ` Avi Kivity
2009-09-22 18:06 ` Peter Zijlstra
2009-09-19 6:40 ` [PATCH 1/4] " Avi Kivity
2009-09-16 12:45 ` [PATCH 2/4] KVM: VMX: Move MSR_KERNEL_GS_BASE out of the vmx autoload msr area Avi Kivity
2009-09-16 12:45 ` [PATCH 3/4] KVM: x86 shared msr infrastructure Avi Kivity
2009-09-16 21:21 ` Marcelo Tosatti
2009-09-16 21:24 ` Avi Kivity [this message]
2009-09-16 12:45 ` [PATCH 4/4] KVM: VMX: Use " Avi Kivity
2009-10-25 12:23 ` [PATCH 0/4] User return notifiers / just-in-time MSR switching for KVM Avi Kivity
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