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[Qemu-devel] [PATCH 02/25] s390x/mmu: Fix the check for the real-space d
From: |
Jens Freimann |
Subject: |
[Qemu-devel] [PATCH 02/25] s390x/mmu: Fix the check for the real-space designation bit |
Date: |
Thu, 12 Feb 2015 18:09:19 +0100 |
From: Thomas Huth <address@hidden>
The real-space designation bits live in the ASCEs, not in the table entries,
so the check must be done before we start walking the MMU table.
Signed-off-by: Thomas Huth <address@hidden>
Signed-off-by: Jens Freimann <address@hidden>
Reviewed-by: David Hildenbrand <address@hidden>
---
target-s390x/mmu_helper.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git a/target-s390x/mmu_helper.c b/target-s390x/mmu_helper.c
index fc4f7c5..c845cd4 100644
--- a/target-s390x/mmu_helper.c
+++ b/target-s390x/mmu_helper.c
@@ -180,13 +180,6 @@ static int mmu_translate_asce(CPUS390XState *env,
target_ulong vaddr,
return -1;
}
- if (asce & _ASCE_REAL_SPACE) {
- /* direct mapping */
-
- *raddr = vaddr;
- return 0;
- }
-
origin = asce & _ASCE_ORIGIN;
switch (level) {
@@ -252,6 +245,12 @@ static int mmu_translate_asc(CPUS390XState *env,
target_ulong vaddr,
break;
}
+ if (asce & _ASCE_REAL_SPACE) {
+ /* direct mapping */
+ *raddr = vaddr;
+ return 0;
+ }
+
switch (asce & _ASCE_TYPE_MASK) {
case _ASCE_TYPE_REGION1:
break;
--
2.1.4
- [Qemu-devel] [PATCH 05/25] s390x/mmu: Skip exceptions properly when translating addresses for debug, (continued)
- [Qemu-devel] [PATCH 05/25] s390x/mmu: Skip exceptions properly when translating addresses for debug, Jens Freimann, 2015/02/12
- [Qemu-devel] [PATCH 04/25] s390x/mmu: Check table length and offset fields, Jens Freimann, 2015/02/12
- [Qemu-devel] [PATCH 09/25] s390x/mmu: Add support for read-only regions, Jens Freimann, 2015/02/12
- [Qemu-devel] [PATCH 03/25] s390x/mmu: Fix the handling of the table levels, Jens Freimann, 2015/02/12
- [Qemu-devel] [PATCH 25/25] s390x/helper: Remove s390_cpu_physical_memory_map, Jens Freimann, 2015/02/12
- [Qemu-devel] [PATCH 07/25] s390x/mmu: Fix exception types when checking the ASCEs, Jens Freimann, 2015/02/12
- [Qemu-devel] [PATCH 14/25] s390x/mmu: Add function for accessing guest memory, Jens Freimann, 2015/02/12
- [Qemu-devel] [PATCH 16/25] s390x/ioinst: Rework memory access in MSCH instruction, Jens Freimann, 2015/02/12
- [Qemu-devel] [PATCH 13/25] s390x/kvm: Add function for injecting pgm access exceptions, Jens Freimann, 2015/02/12
- [Qemu-devel] [PATCH 17/25] s390x/ioinst: Rework memory access in SSCH instruction, Jens Freimann, 2015/02/12
- [Qemu-devel] [PATCH 02/25] s390x/mmu: Fix the check for the real-space designation bit,
Jens Freimann <=
- [Qemu-devel] [PATCH 20/25] s390x/ioinst: Rework memory access in TSCH instruction, Jens Freimann, 2015/02/12
- [Qemu-devel] [PATCH 22/25] s390x/ioinst: Rework memory access in CHSC instruction, Jens Freimann, 2015/02/12
- [Qemu-devel] [PATCH 10/25] s390x/mmu: Renaming related to the ASCE confusion, Jens Freimann, 2015/02/12
- [Qemu-devel] [PATCH 06/25] s390x/mmu: Fix translation exception code in lowcore, Jens Freimann, 2015/02/12
- [Qemu-devel] [PATCH 19/25] s390x/ioinst: Set condition code in ioinst_handle_tsch() handler, Jens Freimann, 2015/02/12
- [Qemu-devel] [PATCH 21/25] s390x/ioinst: Rework memory access in STCRW instruction, Jens Freimann, 2015/02/12
- [Qemu-devel] [PATCH 23/25] s390x/ioinst: Rework memory access in TPI instruction, Jens Freimann, 2015/02/12
- [Qemu-devel] [PATCH 01/25] s390x/mmu: Move mmu_translate() and friends to separate file, Jens Freimann, 2015/02/12
- Re: [Qemu-devel] [PATCH 00/25] s390x: rework guest memory access, Christian Borntraeger, 2015/02/18