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SubjectRe: [Xen-devel] is kexec on Xen domU possible?
Greg KH <gregkh@linuxfoundation.org> writes:

> On Tue, Jul 23, 2013 at 05:22:36PM -0700, Matt Wilson wrote:
>> On Mon, Jul 22, 2013 at 11:33:15AM -0700, Greg KH wrote:
>> > On Mon, Jul 22, 2013 at 11:24:46AM -0700, H. Peter Anvin wrote:
>> > > On 07/22/2013 10:20 AM, Eric W. Biederman wrote:
>>
>> Many Xen-based cloud providers provide a mechanism for users to boot
>> the kernels they want. For example you can use PV-GRUB on EC2
>> instances to boot a kernel that is stored within an AMI.
>>
>> For more info:
>> http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/UserProvidedkernels.html
>
> Yes, that's quite true, but some don't, or they make it difficult to do
> so. Using kexec also allows you to "be the bootloader" and decide on
> _which_ kernel you want to boot, independant of what cloud provider you
> use, something that lots of people want in their quest to not dependant
> on any one company.

I would be more than happy to review and help get something merged that
sorts out kexec on Xen.

Eric



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