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Prior to aborting due to an instruction emulation error, it is always

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interesting to see what the guest's %rip and instruction bytes are.

Reviewed by:	grehan
This commit is contained in:
Tycho Nightingale 2015-04-01 20:36:07 +00:00
parent 892406d827
commit 703e4974aa
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=280968
1 changed files with 12 additions and 7 deletions
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19
usr.sbin/bhyve/bhyverun.c
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@ -495,22 +495,27 @@ vmexit_mtrap(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu)
static int
vmexit_inst_emul(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu)
{
int err;
int err, i;
struct vie *vie;
stats.vmexit_inst_emul++;
vie = &vmexit->u.inst_emul.vie;
err = emulate_mem(ctx, *pvcpu, vmexit->u.inst_emul.gpa,
&vmexit->u.inst_emul.vie, &vmexit->u.inst_emul.paging);
vie, &vmexit->u.inst_emul.paging);
if (err) {
if (err == EINVAL) {
fprintf(stderr,
"Failed to emulate instruction at 0x%lx\n",
vmexit->rip);
} else if (err == ESRCH) {
if (err == ESRCH) {
fprintf(stderr, "Unhandled memory access to 0x%lx\n",
vmexit->u.inst_emul.gpa);
}
fprintf(stderr, "Failed to emulate instruction [");
for (i = 0; i < vie->num_valid; i++) {
fprintf(stderr, "0x%02x%s", vie->inst[i],
i != (vie->num_valid - 1) ? " " : "");
}
fprintf(stderr, "] at 0x%lx\n", vmexit->rip);
return (VMEXIT_ABORT);
}