[SeaBIOS] seabios: acpi: add _RMV control method for PCI devices
Marcelo Tosatti
mtosatti at redhat.com
Wed Dec 8 19:01:18 CET 2010
On Wed, Dec 08, 2010 at 07:34:42PM +0200, Gleb Natapov wrote:
> On Wed, Dec 08, 2010 at 03:08:59PM -0200, Marcelo Tosatti wrote:
> > Use _RMV method to indicate whether device can be removed.
> >
> But Windows still shows device as removable in the gui and allows to
> remove it, correct?
No. From "Designing Hardware for Surprise Removal under Windows XP"
document:
"An ACPI BIOS can override the Removable capability by using the _RMV
method ..."
> > +#define gen_pci_device(name, nr) \
> > + Device(SL##name) { \
> > + Name (_ADR, nr##0000) \
> > + Method (_RMV) { \
> > + If (And(\_SB.PCI0.PCRM, ShiftLeft(1, nr))) { \
> > + Return (0x1) \
> > + } \
> > + Return (0x0) \
> > + } \
> > + Name (_SUN, name) \
> > + }
> Why not add this to hotplug_slot() macro?
Because its ignored if declared in the device object thats a child
of SB.PCI0 (hotplug_slot).
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