| commit | 9d82b5a792236db31a75b9db5c93af69ac07c7c5 | |
| author | Paolo Bonzini <pbonzini@redhat.com> | |
| Fri, 16 Aug 2013 06:26:30 +0000 (16 08:26 +0200) | ||
| committer | Paolo Bonzini <pbonzini@redhat.com> | |
| Mon, 16 Feb 2015 16:30:19 +0000 (16 17:30 +0100) | ||
| tree | 95682ab6099e8e318102678fcba9cd2b62b9568c | treesnapshot (tar.gz zip) |
| parent | 76e5c76f2e2e0d20bab2cd5c7a87452f711654fb | commitdiff |
exec: make iotlb RCU-friendly
After the previous patch, TLBs will be flushed on every change to
the memory mapping. This patch augments that with synchronization
of the MemoryRegionSections referred to in the iotlb array.
With this change, it is guaranteed that iotlb_to_region will access
the correct memory map, even once the TLB will be accessed outside
the BQL.
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
After the previous patch, TLBs will be flushed on every change to
the memory mapping. This patch augments that with synchronization
of the MemoryRegionSections referred to in the iotlb array.
With this change, it is guaranteed that iotlb_to_region will access
the correct memory map, even once the TLB will be accessed outside
the BQL.
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>