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authorSergey Fedorov <serge.fdrv@gmail.com>2015-06-30 12:35:09 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2015-08-06 12:04:08 +0200
commit02d57ea115b7669f588371c86484a2e8ebc369be (patch)
treea87d850835d5142255f0a48b724b43589e15abf5 /include/exec
parentaf103c9310b7ab56a2552965d9d1274b0024f27b (diff)
downloadhqemu-02d57ea115b7669f588371c86484a2e8ebc369be.zip
hqemu-02d57ea115b7669f588371c86484a2e8ebc369be.tar.gz
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.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
index a6fce04..8427225 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];
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