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SubjectRe: [PATCH] svm: Add mutex_lock to protect apic_access_page_done on AMD systems
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On 12/11/18 14:37, joro@8bytes.org wrote:
> On Mon, Nov 12, 2018 at 12:23:14PM +0000, Suthikulpanit, Suravee wrote:
>> From: Wei Wang <wawei@amazon.de>
>>
>> There is a race condition when accessing kvm->arch.apic_access_page_done.
>> Due to it, x86_set_memory_region will fail when creating the second vcpu
>> for a svm guest.
>>
>> Add a mutex_lock to serialize the accesses to apic_access_page_done.
>> This lock is also used by vmx for the same purpose.
>>
>> Signed-off-by: Wei Wang <wawei@amazon.de>
>> Signed-off-by: Amadeusz Juskowiak <ajusk@amazon.de>
>> Signed-off-by: Julian Stecklina <jsteckli@amazon.de>
>> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
> Reviewed-by: Joerg Roedel <jroedel@suse.de>

Queued, thanks.

Paolo

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