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Re: [Xen-devel] [PATCH v3] kexec: implement STATUS hypercall to check if image is loaded



On Tue, Jan 17, 2017 at 11:29:16AM -0600, Eric DeVolder wrote:
> The tools that use kexec are asynchronous in nature and do not keep
> state changes. As such provide an hypercall to find out whether an
> image has been loaded for either type.
> 
> Note: No need to modify XSM as it has one size fits all check and
> does not check for subcommands.
> 
> Note: No need to check KEXEC_FLAG_IN_PROGRESS (and error out of
> kexec_status()) as this flag is set only once by the first/only
> cpu on the crash path.
> 
> Note: This is just the Xen side of the hypercall, kexec-tools patch
> to come separately.
> 
> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> Signed-off-by: Eric DeVolder <eric.devolder@xxxxxxxxxx>

Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>

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