提交 83b8795a 编写于 作者: A Avi Kivity

KVM: x86 emulator: pass access size and read/write intent to linearize()

Needed for segment read/write checks.
Signed-off-by: NAvi Kivity <avi@redhat.com>
上级 9fa088f4
......@@ -491,6 +491,7 @@ 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;
......@@ -550,7 +551,7 @@ 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,
......@@ -973,7 +974,7 @@ 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);
......@@ -987,7 +988,7 @@ 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,
......@@ -1002,7 +1003,7 @@ 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,
......@@ -2509,7 +2510,7 @@ 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. */
......
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