Re: [PATCH] x86/acpi/boot: Correct acpi_is_processor_usable() check again

From: Borislav Petkov

Date: Wed Nov 12 2025 - 12:21:31 EST


On Wed, Nov 12, 2025 at 10:35:13AM -0600, Mario Limonciello wrote:
> What version does the MADT in QEMU report today? Presumably not all
> virtualization solutions make this assumption about this bit.
>
> IE rather than clump all virtualization should we just detect QEMU and <
> ACPI 6.3?

Version 3. Yah, no idea what that means.

There's some discussion here:

https://lore.kernel.org/qemu-devel/20230510174510.089ecb14@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx/

but I'm not fixing the kernel because qemu is doing what it desires.

--
Regards/Gruss,
Boris.

https://people.kernel.org/tglx/notes-about-netiquette