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| author | Paolo Bonzini | 2016-07-19 08:36:18 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2016-09-13 19:08:43 +0200 |
| commit | 6d21e4208f382dd8ca1f7995a6dd9ea7ca281163 (patch) | |
| tree | 81569f437586f0525ac788a09826af4e0c8020bb /include/exec/user | |
| parent | tcg: Prepare safe access to tb_flushed out of tb_lock (diff) | |
| download | qemu-6d21e4208f382dd8ca1f7995a6dd9ea7ca281163.tar.gz qemu-6d21e4208f382dd8ca1f7995a6dd9ea7ca281163.tar.xz qemu-6d21e4208f382dd8ca1f7995a6dd9ea7ca281163.zip | |
tcg: Prepare TB invalidation for lockless TB lookup
When invalidating a translation block, set an invalid flag into the
TranslationBlock structure first. It is also necessary to check whether
the target TB is still valid after acquiring 'tb_lock' but before calling
tb_add_jump() since TB lookup is to be performed out of 'tb_lock' in
future. Note that we don't have to check 'last_tb'; an already invalidated
TB will not be executed anyway and it is thus safe to patch it.
Suggested-by: Sergey Fedorov <serge.fdrv@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/exec/user')
0 files changed, 0 insertions, 0 deletions