Il 14/03/2013 09:48, Hu Tao ha scritto: > pvevent device is used to notify host(qemu) when guest panic > happens. > > ref: http://lists.nongnu.org/archive/html/qemu-devel/2013-03/msg02293.html > > Signed-off-by: Hu Tao <hu...@cn.fujitsu.com> > --- > src/acpi-dsdt-isa.dsl | 30 ++++++++++++++++++++++++++++++ > 1 file changed, 30 insertions(+) > > diff --git a/src/acpi-dsdt-isa.dsl b/src/acpi-dsdt-isa.dsl > index 23761db..d083245 100644 > --- a/src/acpi-dsdt-isa.dsl > +++ b/src/acpi-dsdt-isa.dsl > @@ -99,4 +99,34 @@ Scope(\_SB.PCI0.ISA) { > IRQNoFlags() { 3 } > }) > } > + > + Device(PEVT) { > + Name(_HID, "MSFT0001") > + OperationRegion(PEOR, SystemIO, 0x0505, 0x01) > + Field(PEOR, ByteAcc, NoLock, Preserve) { > + PEPT, 8, > + } > + > + Method(_STA, 0, NotSerialized) { > + Store(PEPT, Local0) > + If (LEqual(Local0, Zero)) { > + Return (0x00) > + } Else { > + Return (0x0F) > + } > + } > + > + Method(RDPT, 0, NotSerialized) { > + Store(PEPT, Local0) > + Return (Local0) > + } > + > + Method(WRPT, 1, NotSerialized) { > + Store(Arg0, PEPT) > + } > + > + Name(_CRS, ResourceTemplate() { > + IO(Decode16, 0x0505, 0x0505, 0x01, 0x01) > + }) > + } > } >
I like the idea of using methods in the DSDT to isolate from the actual implementation of the device. I don't see a huge problem with the probing, but Gleb does so please go on with the fw_cfg part. Paolo
