peter/qemu - QEMU hacking for Peter

Age	Commit message (Collapse)	Author	Files	Lines
2012-04-15	acpi_piix4: Re-define PCI hotplug eject register read	Alex Williamson	1	-2/+10
	The PCI hotplug eject register has always returned 0, so let's redefine it as a hotplug feature register. The existing model of using separate up & down read-only registers and an eject via write to this register becomes the base implementation. As we make use of new interfaces we'll set bits here to allow the BIOS and AML implementation to optimize for the platform implementation. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-04-15	acpi_piix4: Remove PCI_RMV_BASE write code	Alex Williamson	1	-1/+1
	Clarify this register as read-only and remove write code. No change in existing behavior. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-04-15	acpi_piix4: Disallow write to up/down PCI hotplug registers	Alex Williamson	1	-2/+2
	The write side of these registers is never used and actually can't be used as defined because any read/modify/write sequence from the guest potentially races with qemu. Drop the write support and define these as read-only registers. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-01-17	document QEMU<->ACPIBIOS PCI hotplug interface	Marcelo Tosatti	1	-0/+37
	Document how QEMU communicates with ACPI BIOS for PCI hotplug. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>