From: Wei Liu <wei.liu2@citrix.com>
To: Eric DeVolder <eric.devolder@oracle.com>
Cc: elena.ufimtseva@oracle.com, wei.liu2@citrix.com,
konrad.wilk@oracle.com, andrew.cooper3@citrix.com,
daniel.kiper@oracle.com, ian.jackson@eu.citrix.com,
xen-devel@lists.xen.org
Subject: Re: [PATCH v3] kexec: implement STATUS hypercall to check if image is loaded
Date: Wed, 18 Jan 2017 09:47:19 +0000 [thread overview]
Message-ID: <20170118094719.GL5089@citrix.com> (raw)
In-Reply-To: <1484674156-28133-1-git-send-email-eric.devolder@oracle.com>
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@oracle.com>
> Signed-off-by: Eric DeVolder <eric.devolder@oracle.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
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next prev parent reply other threads:[~2017-01-18 9:47 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-17 17:29 [PATCH v3] kexec: implement STATUS hypercall to check if image is loaded Eric DeVolder
2017-01-17 20:41 ` Andrew Cooper
2017-01-17 22:09 ` Daniel Kiper
2017-01-18 9:47 ` Wei Liu [this message]
2017-01-18 10:19 ` Jan Beulich
2017-01-18 10:37 ` Wei Liu
2017-01-18 10:45 ` Jan Beulich
2017-01-18 10:47 ` Wei Liu
2017-01-18 17:48 ` Eric DeVolder
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