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target/arm: Use cpu_loop_exit_sigsegv for mte tag lookup 

Use the new os interface for raising the exception,
rather than calling arm_cpu_tlb_fill directly.

Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-09-17 17:49:05 -07:00
parent 90113883af
commit 5e98763c0e
1 changed files with 2 additions and 4 deletions
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6
target/arm/mte_helper.c
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@ -84,10 +84,8 @@ static uint8_t *allocation_tag_mem(CPUARMState *env, int ptr_mmu_idx,
uintptr_t index;
if (!(flags & (ptr_access == MMU_DATA_STORE ? PAGE_WRITE_ORG : PAGE_READ))) {
/* SIGSEGV */
arm_cpu_tlb_fill(env_cpu(env), ptr, ptr_size, ptr_access,
ptr_mmu_idx, false, ra);
g_assert_not_reached();
cpu_loop_exit_sigsegv(env_cpu(env), ptr, ptr_access,
!(flags & PAGE_VALID), ra);
}
/* Require both MAP_ANON and PROT_MTE for the page. */