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authorLinus Torvalds <torvalds@linux-foundation.org>2016-02-26 03:53:54 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2016-02-26 03:53:54 (GMT)
commit73056bbc683f16672b948968a92fc3aa6aefbfbd (patch)
tree58627b00072f34d8fc209ab39c0e59439cbe7de9 /arch/arm
parent5882c169be18e42b855443574f8e95215f7ba461 (diff)
parent0fb00d326ffc36844fac0bfefd8644585a86d4a6 (diff)
downloadlinux-73056bbc683f16672b948968a92fc3aa6aefbfbd.tar.xz
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini: "KVM/ARM fixes: - Fix per-vcpu vgic bitmap allocation - Do not give copy random memory on MMIO read - Fix GICv3 APR register restore order KVM/x86 fixes: - Fix ubsan warning - Fix hardware breakpoints in a guest vs. preempt notifiers - Fix Hurd Generic: - use __GFP_NOWARN together with GFP_NOWAIT" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: MMU: fix ubsan index-out-of-range warning arm64: KVM: vgic-v3: Restore ICH_APR0Rn_EL2 before ICH_APR1Rn_EL2 KVM: async_pf: do not warn on page allocation failures KVM: x86: fix conversion of addresses to linear in 32-bit protected mode KVM: x86: fix missed hardware breakpoints arm/arm64: KVM: Feed initialized memory to MMIO accesses KVM: arm/arm64: vgic: Ensure bitmaps are long enough
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/kvm/mmio.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/kvm/mmio.c b/arch/arm/kvm/mmio.c
index 7f33b20..0f6600f 100644
--- a/arch/arm/kvm/mmio.c
+++ b/arch/arm/kvm/mmio.c
@@ -206,7 +206,8 @@ int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
run->mmio.is_write = is_write;
run->mmio.phys_addr = fault_ipa;
run->mmio.len = len;
- memcpy(run->mmio.data, data_buf, len);
+ if (is_write)
+ memcpy(run->mmio.data, data_buf, len);
if (!ret) {
/* We handled the access successfully in the kernel. */