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linux-user/aarch64: Pass syndrome to EXC_*_ABORT

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A proper syndrome is required to fill in the proper si_code.
Use page_get_flags to determine permission vs translation for user-only.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210212184902.1251044-27-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2021-02-12 10:48:57 -08:00 • committed by Peter Maydell
parent 1fe2785942
commit 8db94ab4e5
2 changed files with 30 additions and 9 deletions
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15
target/arm/tlb_helper.c
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@ -154,21 +154,24 @@ bool arm_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
bool probe, uintptr_t retaddr)
{
ARMCPU *cpu = ARM_CPU(cs);
ARMMMUFaultInfo fi = {};
#ifdef CONFIG_USER_ONLY
cpu->env.exception.vaddress = address;
if (access_type == MMU_INST_FETCH) {
cs->exception_index = EXCP_PREFETCH_ABORT;
int flags = page_get_flags(useronly_clean_ptr(address));
if (flags & PAGE_VALID) {
fi.type = ARMFault_Permission;
} else {
cs->exception_index = EXCP_DATA_ABORT;
fi.type = ARMFault_Translation;
}
cpu_loop_exit_restore(cs, retaddr);
/* now we have a real cpu fault */
cpu_restore_state(cs, retaddr, true);
arm_deliver_fault(cpu, address, access_type, mmu_idx, &fi);
#else
hwaddr phys_addr;
target_ulong page_size;
int prot, ret;
MemTxAttrs attrs = {};
ARMMMUFaultInfo fi = {};
ARMCacheAttrs cacheattrs = {};
/*