diff options
| author | Song Gao <gaosong@loongson.cn> | 2024-07-24 09:58:53 +0800 |
|---|---|---|
| committer | Song Gao <gaosong@loongson.cn> | 2024-07-24 16:52:18 +0800 |
| commit | a18ffbcf8b9fabfc6c850ebb1d3e40a21b885c67 (patch) | |
| tree | bcbf7d3dec04d8bbf325e2db1b1e4b6b103924b2 | |
| parent | 6410f877f5ed535acd01bbfaa4baec379e44d0ef (diff) | |
target/loongarch: Fix helper_lddir() a CID INTEGER_OVERFLOW issue
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 <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240724015853.1317396-1-gaosong@loongson.cn>
| -rw-r--r-- | target/loongarch/tcg/tlb_helper.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/target/loongarch/tcg/tlb_helper.c b/target/loongarch/tcg/tlb_helper.c index d6331f9b0b..97f38fc391 100644 --- a/target/loongarch/tcg/tlb_helper.c +++ b/target/loongarch/tcg/tlb_helper.c @@ -525,6 +525,7 @@ 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)) { |