Re: [Patch] acpi: introduce "acpi_addr=" parameter for kdump

[Cong Wang]

ä 2011å03æ21æ 23:56, Vivek Goyal åé:
> Matthew and I were chatting in general about it couple of days back and
> mattew suggested how about if we embrace the idea of booting the kernel
> always in physical mode (both first and second) and keep that extra set
> of pagetables around to make EFI calls. That way kexec/kdump should just
> work and kernel changes also might not be too much.
>
> The potential problem with this is that this might expose various kind
> of BIOS issues with different vendors as vendors might not test the
> physical path.

First I have to say I know a little about EFI.

I am wondering what benefits we will lose if we use physical mode?
comparing it with virtual mode? If very few, this could be a solution.

Thanks.
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