diff options
| author | David Hildenbrand <david@redhat.com> | 2018-02-13 17:12:40 +0100 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2018-02-26 12:55:26 +0100 |
| commit | f26852aa31d49bf83a8defd65538137a2f9da82c (patch) | |
| tree | eda59c67b2386c68def5cc993750103680d14bad /target/s390x/mmu_helper.c | |
| parent | 571729a00a2ec8514c350dae830a73a09698a043 (diff) | |
s390x/tcg: fix disabling/enabling DAT
Currently, all memory accesses go via the MMU of the address space
(primary, secondary, ...). This is bad, because we don't flush the TLB
when disabling/enabling DAT. So we could add a tlb flush. However it
is easier to simply select the MMU we already have in place for real
memory access.
All we have to do is point at the right MMU and allow to execute these
pages.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180213161240.19891-1-david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[CH: get rid of tabs]
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'target/s390x/mmu_helper.c')
| -rw-r--r-- | target/s390x/mmu_helper.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/target/s390x/mmu_helper.c b/target/s390x/mmu_helper.c index f477cc006a..23fb2e7501 100644 --- a/target/s390x/mmu_helper.c +++ b/target/s390x/mmu_helper.c @@ -544,7 +544,7 @@ int mmu_translate_real(CPUS390XState *env, target_ulong raddr, int rw, { const bool lowprot_enabled = env->cregs[0] & CR0_LOWPROT; - *flags = PAGE_READ | PAGE_WRITE; + *flags = PAGE_READ | PAGE_WRITE | PAGE_EXEC; if (is_low_address(raddr & TARGET_PAGE_MASK) && lowprot_enabled) { /* see comment in mmu_translate() how this works */ *flags |= PAGE_WRITE_INV; |