diff options
| author | Song Gao <gaosong@loongson.cn> | 2024-07-24 09:58:53 +0800 |
|---|---|---|
| committer | Michael Tokarev <mjt@tls.msk.ru> | 2024-07-26 13:12:12 +0300 |
| commit | 50675777a07395e2ee84e3f2e7c90cf6522ef966 (patch) | |
| tree | 12ea19a8e59c3043b83f024aac600821697fe8f3 /target | |
| parent | 9d0076b4a1a49a125ca9567cd4641d07b0447573 (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>
(cherry picked from commit a18ffbcf8b9fabfc6c850ebb1d3e40a21b885c67)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Diffstat (limited to 'target')
| -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 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)) { |