blob: 49a4d34832dfcf9f36b20de2eed8926436edd6c2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
#ifndef __PV_EMULATE_H__
#define __PV_EMULATE_H__
#include <xen/sched.h>
#include <asm/processor.h>
#include <asm/x86_emulate.h>
int pv_emul_read_descriptor(unsigned int sel, const struct vcpu *v,
unsigned long *base, unsigned long *limit,
unsigned int *ar, bool insn_fetch);
void pv_emul_instruction_done(struct cpu_user_regs *regs, unsigned long rip);
/* Return a pointer to the GDT/LDT descriptor referenced by sel. */
static inline const seg_desc_t *gdt_ldt_desc_ptr(unsigned int sel)
{
const struct vcpu *curr = current;
const seg_desc_t *tbl = (void *)
((sel & X86_XEC_TI) ? LDT_VIRT_START(curr) : GDT_VIRT_START(curr));
return &tbl[sel >> 3];
}
#endif /* __PV_EMULATE_H__ */
|