Re: [PATCH 1/4] BIOS changes for configuring irq0->inti2 override

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Sebastian Herbszt wrote:
Beth Kon wrote:
@@ -477,6 +480,7 @@ void wrmsr_smp(uint32_t index, uint64_t val)
#define QEMU_CFG_SIGNATURE  0x00
#define QEMU_CFG_ID         0x01
#define QEMU_CFG_UUID       0x02
+#define QEMU_CFG_IRQ0_OVERRIDE 0x0e

Small thing to consider before you resubmit:
In his patch "read-additional-acpi-tables-from-a-vm.patch" Gleb introduced:

#define QEMU_CFG_ARCH_LOCAL     0x8000
#define QEMU_CFG_ACPI_TABLES  (QEMU_CFG_ARCH_LOCAL + 0)

I think the idea behind this was to seperate the generic part from arch specific. The IRQ0 override seems to be arch specific (x86 only?) just like the ACPI tables, right?
I'm not sure what the intent is. It looks like it would be just for additional tables (as opposed to "local")? Gleb? I don't believe irq0 override would fall into that category. But in any case since this is not in any code base, I don't think there's anything to be done yet.

- Sebastian

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