Needed for segment read/write checks.
Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
---
arch/x86/kvm/emulate.c | 11 ++++++-----
1 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 0fc5112..a959a57 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -467,6 +467,7 @@ static unsigned seg_override(struct x86_emulate_ctxt *ctxt,
static int linearize(struct x86_emulate_ctxt *ctxt,
struct segmented_address addr,
+ unsigned size, bool write,
ulong *linear)
{
struct decode_cache *c = &ctxt->decode;
@@ -521,7 +522,7 @@ static int segmented_read_std(struct x86_emulate_ctxt *ctxt,
int rc;
ulong linear;
- rc = linearize(ctxt, addr, &linear);
+ rc = linearize(ctxt, addr, size, false, &linear);
if (rc != X86EMUL_CONTINUE)
return rc;
return ctxt->ops->read_std(linear, data, size, ctxt->vcpu,
@@ -944,7 +945,7 @@ static int segmented_read(struct x86_emulate_ctxt *ctxt,
int rc;
ulong linear;
- rc = linearize(ctxt, addr, &linear);
+ rc = linearize(ctxt, addr, size, false, &linear);
if (rc != X86EMUL_CONTINUE)
return rc;
return read_emulated(ctxt, ctxt->ops, linear, data, size);
@@ -958,7 +959,7 @@ static int segmented_write(struct x86_emulate_ctxt *ctxt,
int rc;
ulong linear;
- rc = linearize(ctxt, addr, &linear);
+ rc = linearize(ctxt, addr, size, true, &linear);
if (rc != X86EMUL_CONTINUE)
return rc;
return ctxt->ops->write_emulated(linear, data, size,
@@ -973,7 +974,7 @@ static int segmented_cmpxchg(struct x86_emulate_ctxt *ctxt,
int rc;
ulong linear;
- rc = linearize(ctxt, addr, &linear);
+ rc = linearize(ctxt, addr, size, true, &linear);
if (rc != X86EMUL_CONTINUE)
return rc;
return ctxt->ops->cmpxchg_emulated(linear, orig_data, data,
@@ -2483,7 +2484,7 @@ static int em_invlpg(struct x86_emulate_ctxt *ctxt)
int rc;
ulong linear;
- rc = linearize(ctxt, c->src.addr.mem, &linear);
+ rc = linearize(ctxt, c->src.addr.mem, 1, false, &linear);
if (rc == X86EMUL_CONTINUE)
emulate_invlpg(ctxt->vcpu, linear);
/* Disable writeback. */
--
1.7.1
--
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