KVM: x86 emulator: Provide more callbacks for x86 emulator.
Provide get_cached_descriptor(), set_cached_descriptor(),
get_segment_selector(), set_segment_selector(), get_gdt(),
write_std() callbacks.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index 0765725..f901467 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -63,6 +63,15 @@
unsigned int bytes, struct kvm_vcpu *vcpu, u32 *error);
/*
+ * write_std: Write bytes of standard (non-emulated/special) memory.
+ * Used for descriptor writing.
+ * @addr: [IN ] Linear address to which to write.
+ * @val: [OUT] Value write to memory, zero-extended to 'u_long'.
+ * @bytes: [IN ] Number of bytes to write to memory.
+ */
+ int (*write_std)(unsigned long addr, void *val,
+ unsigned int bytes, struct kvm_vcpu *vcpu, u32 *error);
+ /*
* fetch: Read bytes of standard (non-emulated/special) memory.
* Used for instruction fetch.
* @addr: [IN ] Linear address from which to read.
@@ -108,6 +117,13 @@
const void *new,
unsigned int bytes,
struct kvm_vcpu *vcpu);
+ bool (*get_cached_descriptor)(struct desc_struct *desc,
+ int seg, struct kvm_vcpu *vcpu);
+ void (*set_cached_descriptor)(struct desc_struct *desc,
+ int seg, struct kvm_vcpu *vcpu);
+ u16 (*get_segment_selector)(int seg, struct kvm_vcpu *vcpu);
+ void (*set_segment_selector)(u16 sel, int seg, struct kvm_vcpu *vcpu);
+ void (*get_gdt)(struct desc_ptr *dt, struct kvm_vcpu *vcpu);
ulong (*get_cr)(int cr, struct kvm_vcpu *vcpu);
void (*set_cr)(int cr, ulong val, struct kvm_vcpu *vcpu);
int (*cpl)(struct kvm_vcpu *vcpu);