target/s390x/tcg/mem_helper.c | 1 - 1 file changed, 1 deletion(-)
The "assert(!nonfault)" statement can be triggered by running the
"mvpg" s390x kvm-unit-test with TCG. According to Richard: "... the
assert looks backward. We should only arrive there if nonfault was
true for the probe (otherwise the probe would have raised the
exception directly). I would think we could just remove the assert."
Fixes: 4049431478 ("target/s390x: Fix s390_probe_access for user-only")
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
target/s390x/tcg/mem_helper.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/target/s390x/tcg/mem_helper.c b/target/s390x/tcg/mem_helper.c
index 6835c26dda..adbc79b446 100644
--- a/target/s390x/tcg/mem_helper.c
+++ b/target/s390x/tcg/mem_helper.c
@@ -149,7 +149,6 @@ static inline int s390_probe_access(CPUArchState *env, target_ulong addr,
nonfault, phost, ra);
if (unlikely(flags & TLB_INVALID_MASK)) {
- assert(!nonfault);
#ifdef CONFIG_USER_ONLY
/* Address is in TEC in system mode; see s390_cpu_record_sigsegv. */
env->__excp_addr = addr & TARGET_PAGE_MASK;
--
2.31.1
On 17.03.23 14:57, Thomas Huth wrote: > The "assert(!nonfault)" statement can be triggered by running the > "mvpg" s390x kvm-unit-test with TCG. According to Richard: "... the > assert looks backward. We should only arrive there if nonfault was > true for the probe (otherwise the probe would have raised the > exception directly). I would think we could just remove the assert." > > Fixes: 4049431478 ("target/s390x: Fix s390_probe_access for user-only") > Suggested-by: Richard Henderson <richard.henderson@linaro.org> > Signed-off-by: Thomas Huth <thuth@redhat.com> > --- Reviewed-by: David Hildenbrand <david@redhat.com> -- Thanks, David / dhildenb
On 3/17/23 06:57, Thomas Huth wrote: > The "assert(!nonfault)" statement can be triggered by running the > "mvpg" s390x kvm-unit-test with TCG. According to Richard: "... the > assert looks backward. We should only arrive there if nonfault was > true for the probe (otherwise the probe would have raised the > exception directly). I would think we could just remove the assert." > > Fixes: 4049431478 ("target/s390x: Fix s390_probe_access for user-only") > Suggested-by: Richard Henderson<richard.henderson@linaro.org> > Signed-off-by: Thomas Huth<thuth@redhat.com> > --- > target/s390x/tcg/mem_helper.c | 1 - > 1 file changed, 1 deletion(-) Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
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