From: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk>
Ensure that that both the start and last addresses are within
the same guest page.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <phi...@linaro.org>
Message-Id: <20230629082522.606219-3-mark.cave-ayl...@ilande.co.uk>
[rth: Use tcg_debug_assert, simplify the expression]
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
accel/tcg/tb-maint.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/accel/tcg/tb-maint.c b/accel/tcg/tb-maint.c
index 33ea1aadd1..9566224d18 100644
--- a/accel/tcg/tb-maint.c
+++ b/accel/tcg/tb-maint.c
@@ -1092,6 +1092,9 @@ tb_invalidate_phys_page_range__locked(struct
page_collection *pages,
TranslationBlock *current_tb = retaddr ? tcg_tb_lookup(retaddr) : NULL;
#endif /* TARGET_HAS_PRECISE_SMC */
+ /* Range may not cross a page. */
+ tcg_debug_assert(((start ^ last) & TARGET_PAGE_MASK) == 0);
+
/*
* We remove all the TBs in the range [start, last].
* XXX: see if in some cases it could be faster to invalidate all the code
--
2.34.1
