From: Song Gao <gaos...@loongson.cn>
When the lddir level is 4 and the base is a HugePage, we may try to put value 4
into a field in the TLBENTRY that is only 2 bits wide.
Fixes: Coverity CID 1547717
Fixes: 9c70db9a43388 ("target/loongarch: Fix tlb huge page loading issue")
Signed-off-by: Song Gao <gaos...@loongson.cn>
Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
Message-Id: <20240724015853.1317396-1-gaos...@loongson.cn>
(cherry picked from commit a18ffbcf8b9fabfc6c850ebb1d3e40a21b885c67)
Signed-off-by: Michael Tokarev <m...@tls.msk.ru>
diff --git a/target/loongarch/tcg/tlb_helper.c
b/target/loongarch/tcg/tlb_helper.c
index 57f5308632..2262005499 100644
--- a/target/loongarch/tcg/tlb_helper.c
+++ b/target/loongarch/tcg/tlb_helper.c
@@ -524,6 +524,7 @@ target_ulong helper_lddir(CPULoongArchState *env,
target_ulong base,
if (unlikely(level == 4)) {
qemu_log_mask(LOG_GUEST_ERROR,
"Attempted use of level 4 huge page\n");
+ return base;
}
if (FIELD_EX64(base, TLBENTRY, LEVEL)) {
--
2.39.2
