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bhyve: Add a stub VM_EXITCODE_REG_EMUL handler

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This lets us print a few fields of interest before aborting the VM loop.

No functional change intended.

Reviewed by:	corvink, andrew
Sponsored by:	Innovate UK
Differential Revision:	https://reviews.freebsd.org/D44741
This commit is contained in:
Mark Johnston 2024-06-04 15:06:42 -04:00
parent a0ca4af945
commit 05704402ac
1 changed files with 16 additions and 0 deletions
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16
usr.sbin/bhyve/aarch64/vmexit.c
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@ -84,6 +84,21 @@ fail:
return (VMEXIT_ABORT);
}
static int
vmexit_reg_emul(struct vmctx *ctx __unused, struct vcpu *vcpu __unused,
struct vm_run *vmrun)
{
struct vm_exit *vme;
struct vre *vre;
vme = vmrun->vm_exit;
vre = &vme->u.reg_emul.vre;
EPRINTLN("Unhandled register access: pc %#lx syndrome %#x reg %d\n",
vme->pc, vre->inst_syndrome, vre->reg);
return (VMEXIT_ABORT);
}
static int
vmexit_suspend(struct vmctx *ctx, struct vcpu *vcpu, struct vm_run *vmrun)
{
@ -269,6 +284,7 @@ vmexit_ss(struct vmctx *ctx __unused, struct vcpu *vcpu, struct vm_run *vmrun)
const vmexit_handler_t vmexit_handlers[VM_EXITCODE_MAX] = {
[VM_EXITCODE_BOGUS] = vmexit_bogus,
[VM_EXITCODE_INST_EMUL] = vmexit_inst_emul,
[VM_EXITCODE_REG_EMUL] = vmexit_reg_emul,
[VM_EXITCODE_SUSPENDED] = vmexit_suspend,
[VM_EXITCODE_DEBUG] = vmexit_debug,
[VM_EXITCODE_SMCCC] = vmexit_smccc,