Messages in this thread | | | Subject | Re: [PATCH 0/2] PCI/AER: Consistently use _OSC to determine who owns AER | From | Sinan Kaya <> | Date | Mon, 19 Nov 2018 13:24:11 -0500 |
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On 11/19/2018 1:10 PM, Keith Busch wrote: >> We can't really turn off firmware first in the kernel without asking help >> from the firmware. > The _OSC method this patch utilizes is the ACPI spec defined way for > the kernel to wrest control from firmware. BIOS specific menu settings > shouldn't be our only recourse when we have a spec authority defining > generic OS interfaces to accomplish the same thing. > > Unless there is a disagreement on the _OSC interpreation, we'd have to > accept that platforms breaking from this patch are non-compliant. >
It depends on which spec you look :)
UEFI HEST table specification also claims that it should be the ultimate table for when PCI firmware-first should be disabled/enabled.
I think somebody needs to fix these. I saw an email from Harb Abdulhamid sent to aswg this morning.
That's why I suggested circulating this idea in UEFI forums first. Let's see what everybody thinks. We can go from there.
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