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hypervisor: handle reboot from non-privileged pre-launched guests

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To handle reboot requests from pre-launched VMs that don't have
GUEST_FLAG_HIGHEST_SEVERITY, we shutdown the target VM explicitly
other than ignoring them.

Tracked-On: #2700
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
This commit is contained in:
Zide Chen 2019-12-05 10:40:58 -08:00 committed by wenlingz
parent 2680121097
commit 03a1b2a717
1 changed files with 8 additions and 1 deletions
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9
hypervisor/arch/x86/guest/vm_reset.c
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@ -94,9 +94,16 @@ static bool handle_common_reset_reg_write(struct acrn_vm *vm, bool reset)
if (reset && is_rt_vm(vm)) {
vm->state = VM_POWERING_OFF;
}
} else if (is_prelaunched_vm(vm)) {
/* Don't support re-launch for now, just shutdown the guest */
pause_vm(vm);
struct acrn_vcpu *bsp = vcpu_from_vid(vm, BOOT_CPU_ID);
per_cpu(shutdown_vm_id, pcpuid_from_vcpu(bsp)) = vm->vm_id;
make_shutdown_vm_request(pcpuid_from_vcpu(bsp));
} else {
/*
* ignore writes from SOS or pre-launched VMs.
* ignore writes from SOS.
* equivalent to hide this port from guests.
*/
}