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

From: Eric W. Biederman <ebiederm_at_xmission.com>
Date: 2004-08-06 07:29:09
"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
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Received on Thu Aug 5 17:38:45 2004

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