lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

KVM: x86 emulator: Provide more callbacks for x86 emulator.

Browse Source 
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>
This commit is contained in:
Gleb Natapov
2010-03-18 15:20:16 +02:00
committed by Avi Kivity
parent aca06a8307
commit 2dafc6c234
2 changed files with 131 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
arch/x86/include/asm/kvm_emulate.h
View File

@@ -62,6 +62,15 @@ struct x86_emulate_ops {
int (*read_std)(unsigned long addr, void *val,
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.
@@ -108,6 +117,13 @@ struct x86_emulate_ops {
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);