diff options
| author | Alex Shi <alex.shi@linaro.org> | 2014-01-10 10:50:57 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2014-01-10 10:50:57 +0800 |
| commit | 450cdfa9c5713551ab1438ab210679868b52a994 (patch) | |
| tree | edd98f9698aa88af55a3a1ee3de62e52917c39ba /arch/powerpc/kvm/book3s_64_mmu_hv.c | |
| parent | bf78886fb6c4131885f84f3eaaf7474509d40e51 (diff) | |
| parent | 8b4ed85b8404ffe7e10ee410c4df3968b86f0793 (diff) | |
Merge remote-tracking branch 'stable/linux-3.10.y' into linux-linaro-lsk
Conflicts:
arch/arm64/kernel/smp.c
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Diffstat (limited to 'arch/powerpc/kvm/book3s_64_mmu_hv.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s_64_mmu_hv.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index 5880dfb3107..b616e364dbe 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -473,11 +473,14 @@ static int kvmppc_mmu_book3s_64_hv_xlate(struct kvm_vcpu *vcpu, gva_t eaddr, slb_v = vcpu->kvm->arch.vrma_slb_v; } + preempt_disable(); /* Find the HPTE in the hash table */ index = kvmppc_hv_find_lock_hpte(kvm, eaddr, slb_v, HPTE_V_VALID | HPTE_V_ABSENT); - if (index < 0) + if (index < 0) { + preempt_enable(); return -ENOENT; + } hptep = (unsigned long *)(kvm->arch.hpt_virt + (index << 4)); v = hptep[0] & ~HPTE_V_HVLOCK; gr = kvm->arch.revmap[index].guest_rpte; @@ -485,6 +488,7 @@ static int kvmppc_mmu_book3s_64_hv_xlate(struct kvm_vcpu *vcpu, gva_t eaddr, /* Unlock the HPTE */ asm volatile("lwsync" : : : "memory"); hptep[0] = v; + preempt_enable(); gpte->eaddr = eaddr; gpte->vpage = ((v & HPTE_V_AVPN) << 4) | ((eaddr >> 12) & 0xfff); |