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hw/misc: make pvpanic known to user 

This patch is based on Hu Tao's:
http://lists.nongnu.org/archive/html/qemu-devel/2013-08/msg00125.html

The pvpanic device may be enabled now with "-device pvpanic"
from command line.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Reviewed-by: Hu Tao <hutao@cn.fujitsu.com>
Message-id: 1376233843-19410-3-git-send-email-marcel.a@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Marcel Apfelbaum 2013-08-11 18:10:43 +03:00 committed by Anthony Liguori
parent 7f3e341a00
commit a5d3f640a0
1 changed files with 13 additions and 18 deletions
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31
hw/misc/pvpanic.c
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@ -97,29 +97,24 @@ static void pvpanic_isa_realizefn(DeviceState *dev, Error **errp)
{
ISADevice *d = ISA_DEVICE(dev);
PVPanicState *s = ISA_PVPANIC_DEVICE(dev);
FWCfgState *fw_cfg = fw_cfg_find();
uint16_t *pvpanic_port;
if (!fw_cfg) {
return;
}
pvpanic_port = g_malloc(sizeof(*pvpanic_port));
*pvpanic_port = cpu_to_le16(s->ioport);
fw_cfg_add_file(fw_cfg, "etc/pvpanic-port", pvpanic_port,
sizeof(*pvpanic_port));
isa_register_ioport(d, &s->io, s->ioport);
}
static void pvpanic_fw_cfg(ISADevice *dev, FWCfgState *fw_cfg)
{
PVPanicState *s = ISA_PVPANIC_DEVICE(dev);
uint16_t *pvpanic_port = g_malloc(sizeof(*pvpanic_port));
*pvpanic_port = cpu_to_le16(s->ioport);
fw_cfg_add_file(fw_cfg, "etc/pvpanic-port", pvpanic_port,
sizeof(*pvpanic_port));
}
void pvpanic_init(ISABus *bus)
{
ISADevice *dev;
FWCfgState *fw_cfg = fw_cfg_find();
if (!fw_cfg) {
return;
}
dev = isa_create_simple (bus, TYPE_ISA_PVPANIC_DEVICE);
pvpanic_fw_cfg(dev, fw_cfg);
isa_create_simple(bus, TYPE_ISA_PVPANIC_DEVICE);
}
static Property pvpanic_isa_properties[] = {
@ -132,8 +127,8 @@ static void pvpanic_isa_class_init(ObjectClass *klass, void *data)
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = pvpanic_isa_realizefn;
dc->no_user = 1;
dc->props = pvpanic_isa_properties;
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
}
static TypeInfo pvpanic_isa_info = {