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spapr_hcall: Fix h_enter to loop correctly

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We wanted to loop till index is 8. On 8 we return with H_PTEG_FULL. If we
are successful in loading hpte with any other index, we continue with that
index value.

Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Aneesh Kumar K.V 2014-03-14 19:21:49 +05:30 committed by Andreas Färber
parent cfd54a0409
commit 7aaf4957ef
1 changed files with 5 additions and 6 deletions
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11
hw/ppc/spapr_hcall.c
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@ -110,16 +110,15 @@ static target_ulong h_enter(PowerPCCPU *cpu, sPAPREnvironment *spapr,
if (likely((flags & H_EXACT) == 0)) {
pte_index &= ~7ULL;
token = ppc_hash64_start_access(cpu, pte_index);
do {
if (index == 8) {
ppc_hash64_stop_access(token);
return H_PTEG_FULL;
}
for (; index < 8; index++) {
if ((ppc_hash64_load_hpte0(env, token, index) & HPTE64_V_VALID) == 0) {
break;
}
} while (index++);
}
ppc_hash64_stop_access(token);
if (index == 8) {
return H_PTEG_FULL;
}
} else {
token = ppc_hash64_start_access(cpu, pte_index);
if (ppc_hash64_load_hpte0(env, token, 0) & HPTE64_V_VALID) {