IRQNoFlags on HPET._CRS crashes WinXP because it causes the HPET to conflict with the system timer and/or the RTC. It only occurs on Apple hardware, and even there it is exposed fully only when OS X is detected (via _OSI). Recent OS X versions work on QEMU without this statement, so at this time there is no need to find a better way to conditionally include the statement. This patch removes the commented out (and wrong, should have been {0, 8}) statement from HPET._CRS.
Signed-off-by: Gabriel Somlo <so...@cmu.edu> --- hw/i386/acpi-dsdt-hpet.dsl | 3 --- 1 file changed, 3 deletions(-) diff --git a/hw/i386/acpi-dsdt-hpet.dsl b/hw/i386/acpi-dsdt-hpet.dsl index dfde174..44961b8 100644 --- a/hw/i386/acpi-dsdt-hpet.dsl +++ b/hw/i386/acpi-dsdt-hpet.dsl @@ -39,9 +39,6 @@ Scope(\_SB) { Return (0x0F) } Name(_CRS, ResourceTemplate() { -#if 0 /* This makes WinXP BSOD for not yet figured reasons. */ - IRQNoFlags() {2, 8} -#endif Memory32Fixed(ReadOnly, 0xFED00000, // Address Base 0x00000400, // Address Length -- 1.8.1.4