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authorDavid Hildenbrand <david@redhat.com>2017-11-30 17:27:36 +0100
committerCornelia Huck <cohuck@redhat.com>2017-12-14 17:56:54 +0100
commit820613b1c1c76cb77a15313eb333a710972614ec (patch)
tree0f3433d3df21436aa05c6090eccbca8823133cc7 /target/s390x/mmu_helper.c
parent98ee9bedc734e18287902f39e3a3a8adb399386a (diff)
s390x/tcg: don't exit the cpu loop in s390_cpu_virt_mem_rw()
s390_cpu_virt_mem_rw() must always return, so callers can react on an exception (e.g. see ioinst_handle_stcrw()). Therefore, using program_interrupt() is wrong. Fix that up. Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20171130162744.25442-9-david@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'target/s390x/mmu_helper.c')
-rw-r--r--target/s390x/mmu_helper.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/target/s390x/mmu_helper.c b/target/s390x/mmu_helper.c
index dbe2f511f8..f477cc006a 100644
--- a/target/s390x/mmu_helper.c
+++ b/target/s390x/mmu_helper.c
@@ -64,7 +64,9 @@ static void trigger_access_exception(CPUS390XState *env, uint32_t type,
kvm_s390_access_exception(cpu, type, tec);
} else {
CPUState *cs = CPU(cpu);
- stq_phys(cs->as, env->psa + offsetof(LowCore, trans_exc_code), tec);
+ if (type != PGM_ADDRESSING) {
+ stq_phys(cs->as, env->psa + offsetof(LowCore, trans_exc_code), tec);
+ }
trigger_pgm_exception(env, type, ilen);
}
}
@@ -443,7 +445,8 @@ int mmu_translate(CPUS390XState *env, target_ulong vaddr, int rw, uint64_t asc,
/**
* translate_pages: Translate a set of consecutive logical page addresses
- * to absolute addresses
+ * to absolute addresses. This function is used for TCG and old KVM without
+ * the MEMOP interface.
*/
static int translate_pages(S390CPU *cpu, vaddr addr, int nr_pages,
target_ulong *pages, bool is_write)
@@ -459,7 +462,7 @@ static int translate_pages(S390CPU *cpu, vaddr addr, int nr_pages,
}
if (!address_space_access_valid(&address_space_memory, pages[i],
TARGET_PAGE_SIZE, is_write)) {
- program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO);
+ trigger_access_exception(env, PGM_ADDRESSING, ILEN_AUTO, 0);
return -EFAULT;
}
addr += TARGET_PAGE_SIZE;