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authorMauro Carvalho Chehab <mchehab@redhat.com>2013-06-20 10:19:09 +0200
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-06-20 10:19:09 +0200
commit37c1d2e4098e48d9107858246027510efcfd7774 (patch)
treefd676992f6b27f2576420bbc7b25028d05125940 /arch/powerpc/kvm/44x_tlb.c
parent[media] media: dmxdev: remove dvb_ringbuffer_flush() on writer side (diff)
parentMerge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git... (diff)
downloadlinux-37c1d2e4098e48d9107858246027510efcfd7774.tar.xz
linux-37c1d2e4098e48d9107858246027510efcfd7774.zip
Merge branch 'linus' into patchwork
* linus: (1465 commits) ARM: tegra30: clocks: Fix pciex clock registration lseek(fd, n, SEEK_END) does *not* go to eof - n Linux 3.10-rc6 smp.h: Use local_irq_{save,restore}() in !SMP version of on_each_cpu(). powerpc: Fix missing/delayed calls to irq_work powerpc: Fix emulation of illegal instructions on PowerNV platform powerpc: Fix stack overflow crash in resume_kernel when ftracing snd_pcm_link(): fix a leak... use can_lookup() instead of direct checks of ->i_op->lookup move exit_task_namespaces() outside of exit_notify() fput: task_work_add() can fail if the caller has passed exit_task_work() xfs: don't shutdown log recovery on validation errors xfs: ensure btree root split sets blkno correctly xfs: fix implicit padding in directory and attr CRC formats xfs: don't emit v5 superblock warnings on write mei: me: clear interrupts on the resume path mei: nfc: fix nfc device freeing mei: init: Flush scheduled work before resetting the device sctp: fully initialize sctp_outq in sctp_outq_init netiucv: Hold rtnl between name allocation and device registration. ...
Diffstat (limited to 'arch/powerpc/kvm/44x_tlb.c')
-rw-r--r--arch/powerpc/kvm/44x_tlb.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/44x_tlb.c b/arch/powerpc/kvm/44x_tlb.c
index 5dd3ab469976..ed0385448148 100644
--- a/arch/powerpc/kvm/44x_tlb.c
+++ b/arch/powerpc/kvm/44x_tlb.c
@@ -441,6 +441,7 @@ int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws)
struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
struct kvmppc_44x_tlbe *tlbe;
unsigned int gtlb_index;
+ int idx;
gtlb_index = kvmppc_get_gpr(vcpu, ra);
if (gtlb_index >= KVM44x_GUEST_TLB_SIZE) {
@@ -473,6 +474,8 @@ int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws)
return EMULATE_FAIL;
}
+ idx = srcu_read_lock(&vcpu->kvm->srcu);
+
if (tlbe_is_host_safe(vcpu, tlbe)) {
gva_t eaddr;
gpa_t gpaddr;
@@ -489,6 +492,8 @@ int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws)
kvmppc_mmu_map(vcpu, eaddr, gpaddr, gtlb_index);
}
+ srcu_read_unlock(&vcpu->kvm->srcu, idx);
+
trace_kvm_gtlb_write(gtlb_index, tlbe->tid, tlbe->word0, tlbe->word1,
tlbe->word2);