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xen-devel
[Xen-devel] Re: 2.6.30 Xen merge plan (what's in xen.git)
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To: |
Ingo Molnar <mingo@xxxxxxx> |
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Subject: |
[Xen-devel] Re: 2.6.30 Xen merge plan (what's in xen.git) |
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From: |
Jeremy Fitzhardinge <jeremy@xxxxxxxx> |
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Date: |
Tue, 24 Mar 2009 11:08:40 -0700 |
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Cc: |
Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Dave Airlie <airlied@xxxxxxxx>, the arch/x86 maintainers <x86@xxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> |
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Tue, 24 Mar 2009 11:09:11 -0700 |
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Thunderbird 2.0.0.21 (X11/20090320) |
Ingo Molnar wrote:
Branches which mostly or entirely Xen (only trivial non-Xen changes):
push2/xen/core
Updates to existing Xen support, features, optimisations, etc.
push2/xen/control
A set of usermode interfaces for Xen (/sys/hypervisor, /dev/evtchn,
updates to xenbus and xenfs)
Will take a look.
Thanks.
push2/xen/dom0/core
Core set of changes to add Xen dom0 functionality. (Mostly
Xen-only, but adds a new Xen mtrr driver.)
I suspect this makes limited sense without the arch dom0 changes so
they should go with this bucket:
Yes, you wouldn't get much beyond some console messages and a crash
without the rest.
Branches with non-trivial non-Xen changes:
push2/x86/paravirt
Allow preemption while doing a lazy mmu update.
That's probably OK, just a bit late. If Thomas signs off on them
then i guess it might be OK later in the window - he's the one who
was struggling with paravirt lazy mmu fallout in the past. Thomas?
I've posted those patches several times over the last month. I needed
to add a preempt_disable/enable pair in .29 to apply_to_page_range as a
bugfix, which PeterZ, NickP and AKPM were not particularly happy about.
This is the proper fix.
That said, they're not essential to the rest of the changes, and it
would be fairly simple to drop them out (it would be a matter of
clearing up some conflicts; no functional interactions).
push2/xen/dom0/apic
Changes to hook the Xen dom0 apic model into the standard platform
apic code. HPA reviewed and OKed this.
push2/xen/dom0/pci
Add a Xen pci driver and dma_ops implementations. Small changes to
x86 pci+swiotlb code to add some function calls.
push2/xen/dom0/agp
Change the AGP driver to allocate its memory using the
pci_alloc_coherent to get guaranteed physically contiguous memory,
and use proper phys<->bus functions so that Xen's pseudo-phys <->
machine mappings are handled properly.
hpa wanted dom0 changes in some cleaner fashion - he knows the
details. (he'll be back in a few days)
When I spoke to him last week about this he said he was OK with it. He
didn't make any specific (or even general) objections. Do you know
which subsystem he was referring to?
J
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