/root/src/xen/xen/include/asm/regs.h

Source (jump to first uncovered line)

#ifndef __X86_REGS_H__
#define __X86_REGS_H__

#include <asm/x86_64/regs.h>

#define guest_mode(r)                                                         \
({                                                                            \
    unsigned long diff = (char *)guest_cpu_user_regs() - (char *)(r);         \
    /* Frame pointer must point into current CPU stack. */                    \
    ASSERT(diff < STACK_SIZE);                                                \
    /* If not a guest frame, it must be a hypervisor frame. */                \
    ASSERT((diff == 0) || (r->cs == __HYPERVISOR_CS));                        \
    /* Return TRUE if it's a guest frame. */                                  \
    (diff == 0);                                                              \
})

#define return_reg(v) ((v)->arch.user_regs.rax)

#endif /* __X86_REGS_H__ */

Coverage Report

Created: 2017-10-25 09:10

Line	Count	Source (jump to first uncovered line)
1
2		#ifndef __X86_REGS_H__
3		#define __X86_REGS_H__
4
5		#include <asm/x86_64/regs.h>
6
7	4	#define guest_mode(r) \
8	4	({ \
9	4	unsigned long diff = (char )guest_cpu_user_regs() - (char )(r); \
10	4	/* Frame pointer must point into current CPU stack. */ \
11	4	ASSERT(diff < STACK_SIZE); \
12	4	/* If not a guest frame, it must be a hypervisor frame. */ \
13	4	ASSERT((diff == 0) \|\| (r->cs == __HYPERVISOR_CS)); \
14	4	/* Return TRUE if it's a guest frame. */ \
15	4	(diff == 0); \
16	4	})
17
18	0	#define return_reg(v) ((v)->arch.user_regs.rax)
19
20		#endif /* __X86_REGS_H__ */