Hi Tristan, This patch fixes possible failures on windows boot in some environment. Since current piix3 and piix4 in qemu only uses irq 10 and irq 11 for pci irqs, so here don't need to assign irq 5 and irq 6 for this purpose. IRQ 6 may conflict with the irq of legacy floppy disk controllers.
diff -r f263d2bca359 edk2-sparse/EdkXenPkg/Dxe/XenAcpi/build.c --- a/edk2-sparse/EdkXenPkg/Dxe/XenAcpi/build.c Wed Dec 12 02:02:32 2007 +0100 +++ b/edk2-sparse/EdkXenPkg/Dxe/XenAcpi/build.c Tue Dec 25 14:59:34 2007 +0800 @@ -33,7 +33,7 @@ #define LSAPIC_ID(n) n extern int get_vcpu_nr (void); #define get_apic_mode() 1 -#define PCI_ISA_IRQ_MASK 0x0c60U /* ISA IRQs 5,6,10,11 are PCI connected */ +#define PCI_ISA_IRQ_MASK 0x0c00U /* ISA IRQs 10,11 are PCI connected */ #endif #define align16(sz) (((sz) + 15) & ~15)
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