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SubjectRe: [patch] x86: Introduce BOOT_EFI and BOOT_CF9 into the reboot sequence loop
On 2014/2/28 14:23, Matthew Garrett wrote:
> On Fri, Feb 28, 2014 at 02:20:41PM +0800, Li, Aubrey wrote:
>
>> Well, I already figured that out. Reset Register Supported flag is ZERO
>> in FACP table. I attached this table for your interesting.
>
> Ok, in that case we need to check how Windows deals with a FACP that has
> this flag set to 0 but valid looking registers defined. I'll see if I
> can do that tomorrow.
>

Just let you know, Windows8.1 calls EFI on these boxes for reboot/shutdown.

I'll be surprise if other windows version ignores RESET_REG_SUP to use
ACPI reset registers.

=========ACPI spec ==============================
RESET_REG_SUP: If set, indicates the system supports system reset via
the FADT RESET_REG as described in Section 4.8.3.6
=================================================

Thanks for checking that, please keep me posted. I'll re-submit the
patch after you have an update.

-Aubrey


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