diff options
| author | Wei Wang <wawei@amazon.de> | 2018-11-12 12:23:14 +0000 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-11-27 12:49:39 +0100 |
| commit | 30510387a5e45bfcf8190e03ec7aa15b295828e2 (patch) | |
| tree | 900b78639c8490d76590380358959afdb5d26c4c /arch/x86/realmode/init.c | |
| parent | e97f852fd4561e77721bb9a4e0ea9d98305b1e93 (diff) | |
svm: Add mutex_lock to protect apic_access_page_done on AMD systems
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>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/realmode/init.c')
0 files changed, 0 insertions, 0 deletions