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authorPeter Maydell <peter.maydell@linaro.org>2018-06-29 17:17:31 +0100
committerRichard Henderson <richard.henderson@linaro.org>2018-07-02 08:02:20 -0700
commit4b1a3e1e34ad971b58783d4a24448ccbf5bd8fd4 (patch)
tree390aa187f375330343f979aaeb485754e9eecf64
parente4c967a7201400d7f76e5847d5b4c4ac9e2566e0 (diff)
accel/tcg: Don't treat invalid TLB entries as needing recheck
In get_page_addr_code() when we check whether the TLB entry is marked as TLB_RECHECK, we should not go down that code path if the TLB entry is not valid at all (ie the TLB_INVALID bit is set). Tested-by: Laurent Vivier <laurent@vivier.eu> Reported-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20180629161731.16239-1-peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
-rw-r--r--accel/tcg/cputlb.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c
index 3ae1198c24..cc90a5fe92 100644
--- a/accel/tcg/cputlb.c
+++ b/accel/tcg/cputlb.c
@@ -963,7 +963,8 @@ tb_page_addr_t get_page_addr_code(CPUArchState *env, target_ulong addr)
}
}
- if (unlikely(env->tlb_table[mmu_idx][index].addr_code & TLB_RECHECK)) {
+ if (unlikely((env->tlb_table[mmu_idx][index].addr_code &
+ (TLB_RECHECK | TLB_INVALID_MASK)) == TLB_RECHECK)) {
/*
* This is a TLB_RECHECK access, where the MMU protection
* covers a smaller range than a target page, and we must