diff mbox series

[06/14] include/exec: Introduce TARGET_PAGE_ENTRY_EXTRA

Message ID 20220822235803.1729290-7-richard.henderson@linaro.org
State Superseded
Headers show
Series target/i386: Use atomic operations for pte updates | expand

Commit Message

Richard Henderson Aug. 22, 2022, 11:57 p.m. UTC 
Allow the target to cache items from the guest page tables.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 include/exec/cpu-defs.h | 9 +++++++++
 1 file changed, 9 insertions(+)
diff mbox series

Patch

diff --git a/include/exec/cpu-defs.h b/include/exec/cpu-defs.h
index 5e12cc1854..67239b4e5e 100644
--- a/include/exec/cpu-defs.h
+++ b/include/exec/cpu-defs.h
@@ -163,6 +163,15 @@  typedef struct CPUTLBEntryFull {
 
     /* @lg_page_size contains the log2 of the page size. */
     uint8_t lg_page_size;
+
+    /*
+     * Allow target-specific additions to this structure.
+     * This may be used to cache items from the guest cpu
+     * page tables for later use by the implementation.
+     */
+#ifdef TARGET_PAGE_ENTRY_EXTRA
+    TARGET_PAGE_ENTRY_EXTRA
+#endif
 } CPUTLBEntryFull;
 
 /*