qemu-e2k/pc-bios/bios-pq/0010_bios-mark-the-acpi-sci-interrupt-as-connected-to-irq-9.patch
aliguori 6d2550ea50 Add BIOS patches necessary for hotplug (Marcelo Tosatti)
See each patch for appropriate Signed-off-by's.



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6590 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-11 15:11:43 +00:00

27 lines
851 B
Diff

bios: mark the acpi sci interrupt as connected to irq 9 (Avi Kivity)
Due to a chipset bug, the sci interrupt is hardwired to irq 9. Set the
pci interrupt line register accordingly.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Index: bochs/bios/rombios32.c
===================================================================
--- bochs.orig/bios/rombios32.c
+++ bochs/bios/rombios32.c
@@ -981,6 +981,8 @@ static void pci_bios_init_device(PCIDevi
/* PIIX4 Power Management device (for ACPI) */
pm_io_base = PM_IO_BASE;
smb_io_base = SMB_IO_BASE;
+ // acpi sci is hardwired to 9
+ pci_config_writeb(d, PCI_INTERRUPT_LINE, 9);
pm_sci_int = pci_config_readb(d, PCI_INTERRUPT_LINE);
piix4_pm_enable(d);
acpi_enabled = 1;
--