Re: [Qemu-devel] [PULL 1/5] acpi-build: append description for non-hotplug

[Alex Williamson]

On Mon, 2014-02-17 at 09:51 -0500, Gabriel L. Somlo wrote:
> Michael,
> 
> On Mon, Feb 17, 2014 at 04:25:26PM +0200, Michael S. Tsirkin wrote:
> > As reported in
> > http://article.gmane.org/gmane.comp.emulators.qemu/253987
> > Mac OSX actually requires describing all occupied slots
> > in ACPI - even if hotplug isn't enabled.
> > 
> > I didn't expect this so I dropped description of all
> > non hotpluggable slots from ACPI.
> > As a result: before
> > commit 99fd437dee468609de8218f0eb3b16621fb6a9c9 (enable
> > hotplug for pci bridges), PCI cards show up in the "device tree" of OS X
> > (System Information). E.g., on MountainLion users have:
> > 
> > ...
> > 
> > Ethernet still works, but it's not showing up on the PCI bus, and it
> > no longer thinks it's plugged in to slot #2, as it used to before the
> > change.
> > 
> > To fix, append description for all occupied non hotpluggable PCI slots.
> > 
> > One need to be careful when doing this: VGA and ISA device were already
> > described, so we need to drop description from DSDT.
> > 
> > Reported-by: Gabriel L. Somlo <address@hidden>
> > Signed-off-by: Michael S. Tsirkin <address@hidden>
> > ---
> > ...
> 
> With this latest version of your patch, I crash during OS X boot with
> "unable to find driver for this 
> platform:\"ACPI\".\n"@/SourceCache/xnu/xnu-2050.48.12/iokit/Kernel/IOPlatformExpert.cpp:1514"

Also getting a STOP 0xA5 BSOD for win7x64 guest with this.  Thanks,

Alex