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| author | LorDClockaN <davor@losinj.com> | 2019-03-27 18:32:24 +0100 |
|---|---|---|
| committer | LorDClockaN <davor@losinj.com> | 2019-03-27 18:32:24 +0100 |
| commit | a8e12a51a8c22de9f1281b06f3cd85de5d0ab564 (patch) | |
| tree | 45230cd53d8092c346bd00810e3046fcea43666a /arch/x86/kvm/vmx.c | |
| parent | 92857b007d911bfff7e65465694d28bf8fe96fc7 (diff) | |
| parent | b96e2451dc7dc8df5b5b330af0e96a8ae0e5a421 (diff) | |
Merge branch 'p9x' of https://github.com/DirtyUnicorns/android_kernel_google_bluecross.git into HEADHEADp9.0
Diffstat (limited to 'arch/x86/kvm/vmx.c')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index a24d0805b8c0..beb9bb722c51 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -5965,6 +5965,7 @@ static int handle_external_interrupt(struct kvm_vcpu *vcpu) static int handle_triple_fault(struct kvm_vcpu *vcpu) { vcpu->run->exit_reason = KVM_EXIT_SHUTDOWN; + vcpu->mmio_needed = 0; return 0; } @@ -7046,6 +7047,10 @@ static int get_vmx_mem_address(struct kvm_vcpu *vcpu, /* Addr = segment_base + offset */ /* offset = base + [index * scale] + displacement */ off = exit_qualification; /* holds the displacement */ + if (addr_size == 1) + off = (gva_t)sign_extend64(off, 31); + else if (addr_size == 0) + off = (gva_t)sign_extend64(off, 15); if (base_is_valid) off += kvm_register_read(vcpu, base_reg); if (index_is_valid) @@ -7088,10 +7093,16 @@ static int get_vmx_mem_address(struct kvm_vcpu *vcpu, /* Protected mode: #GP(0)/#SS(0) if the segment is unusable. */ exn = (s.unusable != 0); - /* Protected mode: #GP(0)/#SS(0) if the memory - * operand is outside the segment limit. + + /* + * Protected mode: #GP(0)/#SS(0) if the memory operand is + * outside the segment limit. All CPUs that support VMX ignore + * limit checks for flat segments, i.e. segments with base==0, + * limit==0xffffffff and of type expand-up data or code. */ - exn = exn || (off + sizeof(u64) > s.limit); + if (!(s.base == 0 && s.limit == 0xffffffff && + ((s.type & 8) || !(s.type & 4)))) + exn = exn || (off + sizeof(u64) > s.limit); } if (exn) { kvm_queue_exception_e(vcpu, |