Re: [Xen-devel] [PATCH 4/4] kexec/xen: directly load images images into Xen

[Daniel Kiper <daniel.kiper@xxxxxxxxxx>]

On Thu, Feb 21, 2013 at 05:57:40PM +0000, David Vrabel wrote:
> From: David Vrabel <david.vrabel@xxxxxxxxxx>
>
> Xen 4.3 has an improvided kexec hypercall ABI that allows images to be
> loaded and executed without any kernel involvement.  Use the API
> provided by libxc to load images when running in a Xen guest.
>
> Support for loading images via the kexec_load syscall in non-upstream
> ("classic") Xen kernels is no longer supported.
>
> Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx>

[...]

> diff --git a/kexec/kexec-xen.c b/kexec/kexec-xen.c

[...]

> +     type = kexec_flags & KEXEC_TYPE_CRASH;
> +     arch = (kexec_flags >> 16) & 0xffff;

arch = (kexec_flags & KEXEC_ARCH_MASK) >> 16;

Daniel

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