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From: Bjorn Helgaas <bjorn.helgaas@hp.com>
To: linux-ia64@vger.kernel.org
Subject: RE: pgprot_writecombine & shub 1.x
Date: Wed, 19 Jan 2005 19:33:07 +0000	[thread overview]
Message-ID: <1106163187.15061.21.camel@eeyore> (raw)
In-Reply-To: <200501111200.02504.jbarnes@sgi.com>

On Wed, 2005-01-19 at 10:38 -0800, Luck, Tony wrote:
> >> Does the EFI memory map help here?  Is I/O memory included
> >> in the efi memory map?  What about the hot-plug case ... the
> >> EFI memory map isn't updated for new i/o memory that appears
> >> when you plug in a new card?
> >
> >I think it's supposed to appear as memory mapped I/O or memory 
> >mapped I/O port space in the EFI memory map.  Shouldn't the map
> >be updated in the case of hotplug?
> 
> I'm not an EFI expert ... but it looks like the i/f to get the
> memory map is only part of the boot time services, not the runtime
> services.  If that's right, then I don't think there's a way for
> it to be updated.

That's correct.  The EFI memory map is only a boot-time interface.
You have to learn about hot-plug stuff via ACPI.


  parent reply	other threads:[~2005-01-19 19:33 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-01-11 20:00 pgprot_writecombine & shub 1.x Jesse Barnes
2005-01-11 22:12 ` David Mosberger
2005-01-11 22:35 ` Jesse Barnes
2005-01-12 18:51 ` Jim Hull
2005-01-12 19:31 ` Hugo Kohmann
2005-01-12 19:32 ` Jesse Barnes
2005-01-12 21:54 ` David Mosberger
2005-01-19 17:28 ` Jesse Barnes
2005-01-19 17:53 ` David Mosberger
2005-01-19 17:56 ` Jesse Barnes
2005-01-19 18:04 ` David Mosberger
2005-01-19 18:16 ` Luck, Tony
2005-01-19 18:21 ` Jesse Barnes
2005-01-19 18:38 ` Luck, Tony
2005-01-19 19:33 ` Bjorn Helgaas [this message]
2005-01-19 21:51 ` Jesse Barnes
2005-01-19 22:00 ` Luck, Tony
2005-01-19 22:03 ` Jesse Barnes
2005-01-19 22:07 ` David Mosberger
2005-01-19 22:16 ` Jesse Barnes
2005-01-19 22:20 ` David Mosberger
2005-01-19 22:22 ` Jesse Barnes
2005-01-19 22:25 ` David Mosberger
2005-01-19 22:36 ` Jesse Barnes
2005-01-19 22:39 ` David Mosberger
2005-01-19 22:53 ` Jesse Barnes
2005-01-20  9:03 ` Jes Sorensen
2005-01-20 13:43 ` Hugo Kohmann
2005-01-20 16:42 ` Jesse Barnes
2005-01-20 16:45 ` Jesse Barnes
2005-01-20 17:17 ` David Mosberger
2005-01-21  9:00 ` Jes Sorensen
2005-01-21  9:01 ` Jes Sorensen

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