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| author | Avi Kivity <avi@redhat.com> | 2010-11-17 15:28:22 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-01-12 11:29:36 +0200 |
| commit | 30b31ab6823988263c72a215fb875edec6161250 (patch) | |
| tree | 8385e5888f956d2df04b1dcc91fbe14458082ae7 /arch | |
| parent | 90de84f50b425805bf7ddc430143ed2e224ebd8e (diff) | |
| download | op-kernel-dev-30b31ab6823988263c72a215fb875edec6161250.zip op-kernel-dev-30b31ab6823988263c72a215fb875edec6161250.tar.gz | |
KVM: x86 emulator: do not perform address calculations on linear addresses
Linear addresses are supposed to already have segment checks performed on them;
if we play with these addresses the checks become invalid.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/emulate.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index e967055..bdbbb18 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -568,7 +568,8 @@ static int read_descriptor(struct x86_emulate_ctxt *ctxt, ctxt->vcpu, NULL); if (rc != X86EMUL_CONTINUE) return rc; - rc = ops->read_std(linear(ctxt, addr) + 2, address, op_bytes, + addr.ea += 2; + rc = ops->read_std(linear(ctxt, addr), address, op_bytes, ctxt->vcpu, NULL); return rc; } |
