ACPI_PVPANIC(4)

NAME
acpi_pvpanic - Qemu pvpanic Device

SYNOPSIS
To compile this driver into the kernel, place the following line in your kernel configuration file:

device acpi_pvpanic

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

    acpi_pvpanic_load="YES"

DESCRIPTION
The acpi_pvpanic driver provides support for the pvpanic device that can be provided to virtual-machines by the qemu(1) virtual machine monitor. The pvpanic device can be enabled in qemu(1) by adding the -device pvpanic command line option. When the acpi_pvpanic driver is used, the virtual machine execution will be stopped when the kernel signals a panic. For accessing ddb(4) the virtual machine then needs to be resumed manually (e.g. using the “cont” command in the qemu-monitor console).

SEE ALSO
acpi(4), ddb(4)

HISTORY
The acpi_pvpanic driver first appeared in DragonFly 4.5.

AUTHORS
-nosplit The acpi_pvpanic driver was written by Imre Vadasz <imre@vdsz.com>.