diff options
| author | David Hildenbrand <david@redhat.com> | 2021-09-03 17:55:05 +0200 |
|---|---|---|
| committer | Thomas Huth <thuth@redhat.com> | 2021-09-06 16:24:05 +0200 |
| commit | eaa0feea7532429c3a9bec357ec4f77cb156fab0 (patch) | |
| tree | 4cdb62c716adf06d53b248bda1f6276d3d7f4f19 /target/s390x/mmu_helper.c | |
| parent | 06d8a10a70b7ef14ebf88b874858f73f2dee1109 (diff) | |
s390x/tcg: check for addressing exceptions for RRBE, SSKE and ISKE
Let's replace the ram_size check by a proper physical address space
check (for example, to prepare for memory hotplug), trigger addressing
exceptions and trace the return value of the storage key getter/setter.
Provide an helper mmu_absolute_addr_valid() to be used in other context
soon. Always test for "read" instead of "write" as we are not actually
modifying the page itself.
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210903155514.44772-5-david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'target/s390x/mmu_helper.c')
| -rw-r--r-- | target/s390x/mmu_helper.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/target/s390x/mmu_helper.c b/target/s390x/mmu_helper.c index d779a9fc51..0620b1803e 100644 --- a/target/s390x/mmu_helper.c +++ b/target/s390x/mmu_helper.c @@ -94,6 +94,14 @@ target_ulong mmu_real2abs(CPUS390XState *env, target_ulong raddr) return raddr; } +bool mmu_absolute_addr_valid(target_ulong addr, bool is_write) +{ + return address_space_access_valid(&address_space_memory, + addr & TARGET_PAGE_MASK, + TARGET_PAGE_SIZE, is_write, + MEMTXATTRS_UNSPECIFIED); +} + static inline bool read_table_entry(CPUS390XState *env, hwaddr gaddr, uint64_t *entry) { |