Re: [Fastboot] Re: [BROKEN PATCH] kexec for ia64

Eric W. Biederman
2004-08-05T21:29:09Z

"Tolentino, Matthew E" <matthew.e.tolentino@intel.com> writes:

> >On Wed, Aug 04, 2004 at 08:14:55PM -0600, Eric W. Biederman wrote:
> >> VGA/serial console devices rarely need to do be bus masters so they
> >> should be fine.
> >
> >yeah - you are right. I wasn't thinking.
> >Can anyone comment on UGA or other console devices?
>
> UGA is essentially a PCI device. It uses the EFI PCI I/O
> protocol which gets glued to the kernels pci layer...at least in
> a prototype.
>
> I haven't looked at the latest kexec patch. How is it handling
> the call to EFI's SetVirtualAddressMap()? Is it part of the config
> associated with kexec to do efi calls in physical mode only so that
> it doesn't have to contend with potential follow-on invocations
> resultant from "the next" kernel's initialization?

It should be. So far all I have seen are tentative ia64 kexec patches.

Eric