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s390x/mmu: Fix the check for the real-space designation bit

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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 <thuth@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
Thomas Huth 2015-02-12 18:09:19 +01:00 committed by Christian Borntraeger
parent dfebd7a7a9
commit 89a41e0a37
1 changed files with 6 additions and 7 deletions
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13
target-s390x/mmu_helper.c
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@ -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;