diff options
| author | Michael S. Tsirkin <mst@redhat.com> | 2013-06-16 18:31:30 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2013-07-04 10:42:51 +0300 |
| commit | bc3e6a0d6c8ab6cd7cd4b576ed567756f1dcabd2 (patch) | |
| tree | 305b2b9b6790c6228f292bb43f3a566cecda513d /hw/misc | |
| parent | c6d559d9cf8687d8378e888e7570c07ce53b94e2 (diff) | |
| download | qemu-bc3e6a0d6c8ab6cd7cd4b576ed567756f1dcabd2.zip | |
pvpanic: initialization cleanup
Avoid use of static variables: PC systems
initialize pvpanic device through pvpanic_init,
so we can simply create the fw_cfg file at that point.
This also makes it possible to skip device
creation completely if fw_cfg is not there, e.g. for xen -
so the ports it reserves are not discoverable by guests.
Also, make pvpanic_init void since callers ignore return
status anyway.
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Paul Durrant <Paul.Durrant@citrix.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/misc')
| -rw-r--r-- | hw/misc/pvpanic.c | 30 |
1 files changed, 16 insertions, 14 deletions
diff --git a/hw/misc/pvpanic.c b/hw/misc/pvpanic.c index 060099b553..83ed226081 100644 --- a/hw/misc/pvpanic.c +++ b/hw/misc/pvpanic.c @@ -97,26 +97,28 @@ static void pvpanic_isa_realizefn(DeviceState *dev, Error **errp) { ISADevice *d = ISA_DEVICE(dev); PVPanicState *s = ISA_PVPANIC_DEVICE(dev); - static bool port_configured; - FWCfgState *fw_cfg; isa_register_ioport(d, &s->io, s->ioport); +} - if (!port_configured) { - fw_cfg = fw_cfg_find(); - if (fw_cfg) { - fw_cfg_add_file(fw_cfg, "etc/pvpanic-port", - g_memdup(&s->ioport, sizeof(s->ioport)), - sizeof(s->ioport)); - port_configured = true; - } - } +static void pvpanic_fw_cfg(ISADevice *dev, FWCfgState *fw_cfg) +{ + PVPanicState *s = ISA_PVPANIC_DEVICE(dev); + + fw_cfg_add_file(fw_cfg, "etc/pvpanic-port", + g_memdup(&s->ioport, sizeof(s->ioport)), + sizeof(s->ioport)); } -int pvpanic_init(ISABus *bus) +void pvpanic_init(ISABus *bus) { - isa_create_simple(bus, TYPE_ISA_PVPANIC_DEVICE); - return 0; + 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); } static Property pvpanic_isa_properties[] = { |