KVM: Change the emulator_{read,write,cmpxchg}_* functions to take a vcpu
... instead of a x86_emulate_ctxt, so that other callers can use it easily.
Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net>
Signed-off-by: Avi Kivity <avi@qumranet.com>
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index 6ad1b04..a65a145 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -1020,9 +1020,8 @@
static int emulator_read_std(unsigned long addr,
void *val,
unsigned int bytes,
- struct x86_emulate_ctxt *ctxt)
+ struct kvm_vcpu *vcpu)
{
- struct kvm_vcpu *vcpu = ctxt->vcpu;
void *data = val;
while (bytes) {
@@ -1056,7 +1055,7 @@
static int emulator_write_std(unsigned long addr,
const void *val,
unsigned int bytes,
- struct x86_emulate_ctxt *ctxt)
+ struct kvm_vcpu *vcpu)
{
printk(KERN_ERR "emulator_write_std: addr %lx n %d\n",
addr, bytes);
@@ -1083,9 +1082,8 @@
static int emulator_read_emulated(unsigned long addr,
void *val,
unsigned int bytes,
- struct x86_emulate_ctxt *ctxt)
+ struct kvm_vcpu *vcpu)
{
- struct kvm_vcpu *vcpu = ctxt->vcpu;
struct kvm_io_device *mmio_dev;
gpa_t gpa;
@@ -1093,7 +1091,7 @@
memcpy(val, vcpu->mmio_data, bytes);
vcpu->mmio_read_completed = 0;
return X86EMUL_CONTINUE;
- } else if (emulator_read_std(addr, val, bytes, ctxt)
+ } else if (emulator_read_std(addr, val, bytes, vcpu)
== X86EMUL_CONTINUE)
return X86EMUL_CONTINUE;
@@ -1140,9 +1138,8 @@
static int emulator_write_emulated_onepage(unsigned long addr,
const void *val,
unsigned int bytes,
- struct x86_emulate_ctxt *ctxt)
+ struct kvm_vcpu *vcpu)
{
- struct kvm_vcpu *vcpu = ctxt->vcpu;
struct kvm_io_device *mmio_dev;
gpa_t gpa = vcpu->mmu.gva_to_gpa(vcpu, addr);
@@ -1175,28 +1172,28 @@
static int emulator_write_emulated(unsigned long addr,
const void *val,
unsigned int bytes,
- struct x86_emulate_ctxt *ctxt)
+ struct kvm_vcpu *vcpu)
{
/* Crossing a page boundary? */
if (((addr + bytes - 1) ^ addr) & PAGE_MASK) {
int rc, now;
now = -addr & ~PAGE_MASK;
- rc = emulator_write_emulated_onepage(addr, val, now, ctxt);
+ rc = emulator_write_emulated_onepage(addr, val, now, vcpu);
if (rc != X86EMUL_CONTINUE)
return rc;
addr += now;
val += now;
bytes -= now;
}
- return emulator_write_emulated_onepage(addr, val, bytes, ctxt);
+ return emulator_write_emulated_onepage(addr, val, bytes, vcpu);
}
static int emulator_cmpxchg_emulated(unsigned long addr,
const void *old,
const void *new,
unsigned int bytes,
- struct x86_emulate_ctxt *ctxt)
+ struct kvm_vcpu *vcpu)
{
static int reported;
@@ -1204,7 +1201,7 @@
reported = 1;
printk(KERN_WARNING "kvm: emulating exchange as write\n");
}
- return emulator_write_emulated(addr, new, bytes, ctxt);
+ return emulator_write_emulated(addr, new, bytes, vcpu);
}
static unsigned long get_segment_base(struct kvm_vcpu *vcpu, int seg)
@@ -1266,7 +1263,7 @@
if (reported)
return;
- emulator_read_std(rip_linear, (void *)opcodes, 4, ctxt);
+ emulator_read_std(rip_linear, (void *)opcodes, 4, ctxt->vcpu);
printk(KERN_ERR "emulation failed but !mmio_needed?"
" rip %lx %02x %02x %02x %02x\n",