jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
target/xtensa: Use probe_access for itlb_hit_test
We don't actually need the result of the read, only to probe that the
memory mapping exists. This is exactly what probe_access does.
This is also the only user of any cpu_ld*_code_ra function.
Removing this allows the interface to be removed shortly.
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
+3
-2
+3
-2
target/xtensa/mmu_helper.c
+3
-2
target/xtensa/mmu_helper.c
···
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void HELPER(itlb_hit_test)(CPUXtensaState *env, uint32_t vaddr)
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{
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/*
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-
* Attempt the memory load; we don't care about the result but
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+
* Probe the memory; we don't care about the result but
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* only the side-effects (ie any MMU or other exception)
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*/
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-
cpu_ldub_code_ra(env, vaddr, GETPC());
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+
probe_access(env, vaddr, 1, MMU_INST_FETCH,
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+
cpu_mmu_index(env, true), GETPC());
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}
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void HELPER(wsr_rasid)(CPUXtensaState *env, uint32_t v)