diff options
| author | Sergey Fedorov <serge.fdrv@gmail.com> | 2015-06-30 12:35:09 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-08-06 12:04:08 +0200 |
| commit | 02d57ea115b7669f588371c86484a2e8ebc369be (patch) | |
| tree | a87d850835d5142255f0a48b724b43589e15abf5 /include/exec | |
| parent | af103c9310b7ab56a2552965d9d1274b0024f27b (diff) | |
cpu-exec: Do not invalidate original TB in cpu_exec_nocache()
Instead of invalidating an original TB in cpu_exec_nocache()
prematurely, just save a link to it in the temporary generated TB. If
cpu_io_recompile() is raised subsequently from the temporary TB,
invalidate the original one as well. That allows reusing the original TB
each time cpu_exec_nocache() is called to handle expired instruction
counter in icount mode.
Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Message-Id: <1435656909-29116-1-git-send-email-serge.fdrv@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/exec')
| -rw-r--r-- | include/exec/exec-all.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index a6fce04f65..84272253b3 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -155,6 +155,8 @@ struct TranslationBlock { void *tc_ptr; /* pointer to the translated code */ /* next matching tb for physical address. */ struct TranslationBlock *phys_hash_next; + /* original tb when cflags has CF_NOCACHE */ + struct TranslationBlock *orig_tb; /* first and second physical page containing code. The lower bit of the pointer tells the index in page_next[] */ struct TranslationBlock *page_next[2]; |