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i386/SVM: return amount of ASIDs

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With SVM the TLB supports tagging to distinguish TLB entries from
different virtual CPUs. This tag is called an ASID. The amount of ASIDs is
given in EBX of the SVM-CPUID-leaf. Currently we return 0, which might
break hypervisors. Let's better return something >0 here, say 0x10.
Since we're flushing the complete TLB on every VM entry and exit we're not
making use of the ASID information anyways.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5496 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2008-10-17 08:08:48 +00:00
parent ed69522caf
commit e65bdffaf2
1 changed files with 3 additions and 3 deletions
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6
target-i386/op_helper.c
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@ -2037,10 +2037,10 @@ void helper_cpuid(void)
EDX = 0; EDX = 0;
break; break;
case 0x8000000A: case 0x8000000A:
EAX = 0x00000001; EAX = 0x00000001; /* SVM Revision */
EBX = 0; EBX = 0x00000010; /* nr of ASIDs */
ECX = 0; ECX = 0;
EDX = 0; EDX = 0; /* optional features */
break; break;
default: default:
/* reserved values: zero */ /* reserved values: zero */