Here's the latest rev of the patch that I'm floating
for Linux/ia64. This patch combined with the attached
include/asm-ia64/xen/privop.h, a few source files in
arch/ia64, and drivers/xen (after it has been made
arch-neutral, which we've done out-of-tree but haven't
gotten merged back into the mainline yet) result
in a transparently paravirtualized Linux/ia64.
> -----Original Message-----
> From: linux-ia64-owner@vger.kernel.org
> [mailto:linux-ia64-owner@vger.kernel.org] On Behalf Of
> Magenheimer, Dan (HP Labs Fort Collins)
> Sent: Friday, August 12, 2005 4:09 PM
> To: linux-ia64@vger.kernel.org
> Cc: tony.luck@intel.com
> Subject: RE: Xen and the Art of Linux/ia64 Virtualization
>
> Revision 5. Incorporates abstraction changes to ia64_getreg
> and ia64_setreg as suggested by David Mosberger and Tony
> Luck. Also generalized a bit so that it will be easy to
> support other virtualization software that may come along.
> This patch is currently against 2.6.12 (thus for review only).
>
> Signed-off-by: Dan Magenheimer <dan.magenheimer@hp.com>
>
> Tony, I think this is now ready to go. I suppose the best
> thing would be for me to regenerate this against 2.6.13
> as soon as it comes out?
>
> I've also attached include/asm-ia64/xen/privop.h. Note
> that this is not quite final but is provided for now as
> a well-documented (para)virtualization example which
> should answer many questions.
>
> Dan
>
> > -----Original Message-----
> > From: Magenheimer, Dan (HP Labs Fort Collins)
> > Sent: Thursday, July 28, 2005 4:39 PM
> > To: 'linux-ia64@vger.kernel.org'
> > Cc: 'tony.luck@intel.com'
> > Subject: RE: Xen and the Art of Linux/ia64 Virtualization
> >
> > Revision 4. Minor formatting change suggested by
> > Christoph. Also, no change for "symmetry" suggested
> > by Christoph as Tony wanted to leave as is.
> >
> > Tony I think this is now ready to apply. If there is
> > anything else needed, please let me know.
> >
> > Thanks,
> > Dan Magenheimer
> >
> > > -----Original Message-----
> > > From: Magenheimer, Dan (HP Labs Fort Collins)
> > > Sent: Thursday, July 14, 2005 3:18 PM
> > > To: 'linux-ia64@vger.kernel.org'
> > > Subject: RE: Xen and the Art of Linux/ia64 Virtualization
> > >
> > > Revision 3. Incorporates some more feedback and
> > > a minor bug fix.
> > >
> > > Dan
> > >
> > > > -----Original Message-----
> > > > From: Magenheimer, Dan (HP Labs Fort Collins)
> > > > Sent: Wednesday, July 06, 2005 2:47 PM
> > > > To: 'linux-ia64@vger.kernel.org'
> > > > Subject: RE: Xen and the Art of Linux/ia64 Virtualization
> > > >
> > > > The patch I posted yesterday had a couple of bugs.
> > > > This version applies cleanly against 2.6.12 and
> > > > (when augmented with additional files from various
> > > > Xen subdirectories) has been booted both on Xen/ia64
> > > > and on hardware.
> > > >
> > > > Note that a patch to drivers/acpi/motherboard.c (that
> > > > allows for acpi to be enabled on a stubbed acpi tree
> > > > without a kernel null pointer dereference!) is required
> > > > and has been submitted separately to the linux-acpi list.
> > > >
> > > > With the exception of three short CONFIG_XEN
> > > > ifdefs, the vast majority of changes in this patch
> > > > are code rearrangement to enable a number of routines
> > > > and defines to add one level of abstraction.
> > > >
> > > > Comments and feedback would be much appreciated!
> > > >
> > > > arch/ia64/Kconfig | 7 +
> > > > arch/ia64/Makefile | 1
> > > > arch/ia64/hp/sim/Makefile | 2
> > > > arch/ia64/ia32/elfcore32.h | 2
> > > > arch/ia64/ia32/ia32_signal.c | 6 -
> > > > arch/ia64/ia32/ia32_support.c | 4 -
> > > > arch/ia64/kernel/entry.S | 30 ++++---
> > > > arch/ia64/kernel/head.S | 4 +
> > > > arch/ia64/kernel/irq_ia64.c | 12 +--
> > > > arch/ia64/kernel/pal.S | 5 -
> > > > arch/ia64/kernel/setup.c | 3
> > > > include/asm-ia64/delay.h | 53 -------------
> > > > include/asm-ia64/privop.h | 160
> > > > ++++++++++++++++++++++++++++++++++++++++++
> > > > include/asm-ia64/processor.h | 56 --------------
> > > > include/asm-ia64/system.h | 12 +--
> > > > 15 files changed, 217 insertions(+), 140 deletions(-)
> > > >
> > > > > -----Original Message-----
> > > > > From: Magenheimer, Dan (HP Labs Fort Collins)
> > > > > Sent: Tuesday, July 05, 2005 2:21 PM
> > > > > To: linux-ia64@vger.kernel.org
> > > > > Subject: RE: Xen and the Art of Linux/ia64 Virtualization
> > > > >
> > > > > Thanks to excellent feedback from David Mosberger and
> > > > > Christophe Hellwig, I have greatly cleaned up the attached
> > > > > patch by using some very nice abstractions. In fact,
> > > > > most of the bulk in the attached patch results from
> > > > > moving some code from asm-ia64/{delay,processor}.h to
> > > > > a new file, asm-ia64/privop.h. And the number of
> > > > > CONFIG_XEN ifdefs is dramatically reduced.
> > > > >
> > > > > More feedback appreciated (including comments about how
> > > > > close this might be to be ready for submission to Tony).
> > > > >
> > > > > Thanks,
> > > > > Dan Magenheimer
> > > > >
> > > > > P.S. Anybody who is attending OLS who wants to talk about
> > > > > Xen (and specifically Xen/ia64)? I'll be there... send
> > > > > me email.
> > > > >
> > > >
> > >
> >
>
for Linux/ia64. This patch combined with the attached
include/asm-ia64/xen/privop.h, a few source files in
arch/ia64, and drivers/xen (after it has been made
arch-neutral, which we've done out-of-tree but haven't
gotten merged back into the mainline yet) result
in a transparently paravirtualized Linux/ia64.
> -----Original Message-----
> From: linux-ia64-owner@vger.kernel.org
> [mailto:linux-ia64-owner@vger.kernel.org] On Behalf Of
> Magenheimer, Dan (HP Labs Fort Collins)
> Sent: Friday, August 12, 2005 4:09 PM
> To: linux-ia64@vger.kernel.org
> Cc: tony.luck@intel.com
> Subject: RE: Xen and the Art of Linux/ia64 Virtualization
>
> Revision 5. Incorporates abstraction changes to ia64_getreg
> and ia64_setreg as suggested by David Mosberger and Tony
> Luck. Also generalized a bit so that it will be easy to
> support other virtualization software that may come along.
> This patch is currently against 2.6.12 (thus for review only).
>
> Signed-off-by: Dan Magenheimer <dan.magenheimer@hp.com>
>
> Tony, I think this is now ready to go. I suppose the best
> thing would be for me to regenerate this against 2.6.13
> as soon as it comes out?
>
> I've also attached include/asm-ia64/xen/privop.h. Note
> that this is not quite final but is provided for now as
> a well-documented (para)virtualization example which
> should answer many questions.
>
> Dan
>
> > -----Original Message-----
> > From: Magenheimer, Dan (HP Labs Fort Collins)
> > Sent: Thursday, July 28, 2005 4:39 PM
> > To: 'linux-ia64@vger.kernel.org'
> > Cc: 'tony.luck@intel.com'
> > Subject: RE: Xen and the Art of Linux/ia64 Virtualization
> >
> > Revision 4. Minor formatting change suggested by
> > Christoph. Also, no change for "symmetry" suggested
> > by Christoph as Tony wanted to leave as is.
> >
> > Tony I think this is now ready to apply. If there is
> > anything else needed, please let me know.
> >
> > Thanks,
> > Dan Magenheimer
> >
> > > -----Original Message-----
> > > From: Magenheimer, Dan (HP Labs Fort Collins)
> > > Sent: Thursday, July 14, 2005 3:18 PM
> > > To: 'linux-ia64@vger.kernel.org'
> > > Subject: RE: Xen and the Art of Linux/ia64 Virtualization
> > >
> > > Revision 3. Incorporates some more feedback and
> > > a minor bug fix.
> > >
> > > Dan
> > >
> > > > -----Original Message-----
> > > > From: Magenheimer, Dan (HP Labs Fort Collins)
> > > > Sent: Wednesday, July 06, 2005 2:47 PM
> > > > To: 'linux-ia64@vger.kernel.org'
> > > > Subject: RE: Xen and the Art of Linux/ia64 Virtualization
> > > >
> > > > The patch I posted yesterday had a couple of bugs.
> > > > This version applies cleanly against 2.6.12 and
> > > > (when augmented with additional files from various
> > > > Xen subdirectories) has been booted both on Xen/ia64
> > > > and on hardware.
> > > >
> > > > Note that a patch to drivers/acpi/motherboard.c (that
> > > > allows for acpi to be enabled on a stubbed acpi tree
> > > > without a kernel null pointer dereference!) is required
> > > > and has been submitted separately to the linux-acpi list.
> > > >
> > > > With the exception of three short CONFIG_XEN
> > > > ifdefs, the vast majority of changes in this patch
> > > > are code rearrangement to enable a number of routines
> > > > and defines to add one level of abstraction.
> > > >
> > > > Comments and feedback would be much appreciated!
> > > >
> > > > arch/ia64/Kconfig | 7 +
> > > > arch/ia64/Makefile | 1
> > > > arch/ia64/hp/sim/Makefile | 2
> > > > arch/ia64/ia32/elfcore32.h | 2
> > > > arch/ia64/ia32/ia32_signal.c | 6 -
> > > > arch/ia64/ia32/ia32_support.c | 4 -
> > > > arch/ia64/kernel/entry.S | 30 ++++---
> > > > arch/ia64/kernel/head.S | 4 +
> > > > arch/ia64/kernel/irq_ia64.c | 12 +--
> > > > arch/ia64/kernel/pal.S | 5 -
> > > > arch/ia64/kernel/setup.c | 3
> > > > include/asm-ia64/delay.h | 53 -------------
> > > > include/asm-ia64/privop.h | 160
> > > > ++++++++++++++++++++++++++++++++++++++++++
> > > > include/asm-ia64/processor.h | 56 --------------
> > > > include/asm-ia64/system.h | 12 +--
> > > > 15 files changed, 217 insertions(+), 140 deletions(-)
> > > >
> > > > > -----Original Message-----
> > > > > From: Magenheimer, Dan (HP Labs Fort Collins)
> > > > > Sent: Tuesday, July 05, 2005 2:21 PM
> > > > > To: linux-ia64@vger.kernel.org
> > > > > Subject: RE: Xen and the Art of Linux/ia64 Virtualization
> > > > >
> > > > > Thanks to excellent feedback from David Mosberger and
> > > > > Christophe Hellwig, I have greatly cleaned up the attached
> > > > > patch by using some very nice abstractions. In fact,
> > > > > most of the bulk in the attached patch results from
> > > > > moving some code from asm-ia64/{delay,processor}.h to
> > > > > a new file, asm-ia64/privop.h. And the number of
> > > > > CONFIG_XEN ifdefs is dramatically reduced.
> > > > >
> > > > > More feedback appreciated (including comments about how
> > > > > close this might be to be ready for submission to Tony).
> > > > >
> > > > > Thanks,
> > > > > Dan Magenheimer
> > > > >
> > > > > P.S. Anybody who is attending OLS who wants to talk about
> > > > > Xen (and specifically Xen/ia64)? I'll be there... send
> > > > > me email.
> > > > >
> > > >
> > >
> >
>
Attached Files:
-
xenia64.patch.rev5 (21.0 KB)
-
privop.h (10.0 KB)