Re: [Xen-devel] [PATCH 0/8] kexec: extended kexec hypercall for use with pv-ops kernels

[Daniel Kiper <daniel.kiper@xxxxxxxxxx>]

On Thu, Feb 21, 2013 at 05:48:06PM +0000, David Vrabel wrote:
> The series improves the kexec hypercall by making Xen responsible for
> loading and relocating the image.  This allows kexec to be usable by
> pv-ops kernels and should allow kexec to be usable from a HVM or PVH
> privileged domain.
>
> The first patch is a simple clean-up.
>
> The second patch allows hypercall structures to be ABI compatible
> between 32- and 64-bit guests (by reusing stuff present for domctls
> and sysctls).  This seems better than having to keep adding compat
> handling for new hypercalls etc.
>
> Patch 3 introduces the new ABI.
>
> Patch 4 and 5 nearly completely reimplement the kexec load, unload and
> exec sub-ops.  The old load_v1 sub-op is then implemented on top of
> the new code.
>
> Patch 6 calls the kexec image when dom0 crashes.  This avoids having
> to alter dom0 kernels to do a exec sub-op call on crash -- an existing
> SHUTDOWN_crash.
>
> Patches 7 and 8 add the libxc API for the kexec calls.
>
> The required patch series for kexec-tools will be posted shortly.

On first sight both patch series looks quite good for me.
Give me a week or two to do some tests.

Daniel

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