linux-kernel - Re: [Xen-devel] [PATCH V5] PVH patches for v3.8.

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Date:	Wed, 24 Oct 2012 08:13:24 +0100
From:	"Jan Beulich" <JBeulich@...e.com>
To:	"Konrad Rzeszutek Wilk" <konrad.wilk@...cle.com>,
	<mukesh.rathor@...cle.com>
Cc:	<Ian.Campbell@...rix.com>, <stefano.stabellini@...citrix.com>,
	"xen-devel" <xen-devel@...ts.xen.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [Xen-devel] [PATCH V5] PVH patches for v3.8.

>>> On 23.10.12 at 20:12, Konrad Rzeszutek Wilk <konrad.wilk@...cle.com> wrote:

Do you really want to target 3.8 for these, without any hypervisor
side review having happened? In particular,

> Changelog [since v4]
>  - Mukesh addressed the reviewer's concerns.
>  - Took Mukesh's patches and redid the changelogs.
>  - Added Ack-ed as appropiate.
>  - Fixed PVHVM 32-bit bootup issues.
>  - Did some various cleanups, split some patches up.
> 
> The big change is that I've made the xen_remove_from_physmap structure
> be of the same size and offset on 32 and 64 bit builds. Currently PVH 
> only runs with 64-bit guests, but in the future it could run with 32-bit.
> This change will eliminate having to add a compat layer to deal with
> 32-bit hypercalls.
> 
> Besides that the patches boot on an normal hypervisor - in
> dom0 (32 or 64bit), PV domU (32 or 64) and PVHVM domU (32 or 64).
> I don't have the PVH hypervisor patches so I could not address the
> change to xen_remove_from_physmap but I hope Mukesh can do that.
> 
> The patches are also located at:
>  git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git stable/pvh.v5
> 
> 
>  arch/x86/include/asm/xen/interface.h |   11 ++-
>  arch/x86/include/asm/xen/page.h      |    3 +
>  arch/x86/xen/Kconfig                 |   10 ++
>  arch/x86/xen/enlighten.c             |   78 ++++++++++++----
>  arch/x86/xen/irq.c                   |    5 +-
>  arch/x86/xen/mmu.c                   |  162 ++++++++++++++++++++++++++++++++--
>  arch/x86/xen/mmu.h                   |    2 +
>  arch/x86/xen/p2m.c                   |    2 +-
>  arch/x86/xen/setup.c                 |   58 +++++++++----
>  arch/x86/xen/smp.c                   |   75 ++++++++++------
>  arch/x86/xen/xen-head.S              |   11 ++-
>  drivers/xen/balloon.c                |   15 ++--
>  drivers/xen/cpu_hotplug.c            |    4 +-
>  drivers/xen/events.c                 |    9 ++-
>  drivers/xen/gntdev.c                 |    3 +-
>  drivers/xen/grant-table.c            |   27 +++++-
>  drivers/xen/privcmd.c                |   72 ++++++++++++++-
>  drivers/xen/xenbus/xenbus_client.c   |    3 +-
>  include/xen/interface/memory.h       |   29 ++++++-
>  include/xen/interface/physdev.h      |   10 ++

... any changes to the hypervisor interface (didn't look in detail
what is being changed in these two headers) should first be in
at least -unstable before being consumed in any official release
imo.

Jan

>  include/xen/xen-ops.h                |    5 +-
>  21 files changed, 504 insertions(+), 90 deletions(-)
> 
> Konrad Rzeszutek Wilk (4):
>       xen/pvh: Fix PVHVM 32-bit bootup problems.
>       xen/hypercall: Make xen_remove_from_physmap the same on 64/32 builds.
>       xen/smp: Move the common CPU init code a bit to prep for PVH patch.
>       xen/e820: Coalesce the PVH release/populate logic in the generic case.
> 
> Mukesh Rathor (6):
>       xen/pvh: Support ParaVirtualized Hardware extensions.
>       xen/pvh: Extend vcpu_guest_context, p2m, event, and XenBus.
>       xen/pvh: Implement MMU changes for PVH.
>       xen/pvh: bootup and setup (E820) related changes.
>       xen/pvh: balloon and grant changes.
>       xen/pvh: /dev/xen/privcmd changes.
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@...ts.xen.org 
> http://lists.xen.org/xen-devel 



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