Re: [Xen-devel] [PATCH RFC 0/1] Introduce VCPUOP_reset_vcpu_info

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 06.08.14 at 17:02, <konrad.wilk@xxxxxxxxxx> wrote:
> On Wed, Aug 06, 2014 at 04:00:12PM +0100, Jan Beulich wrote:
>> >>> On 06.08.14 at 16:51, <konrad.wilk@xxxxxxxxxx> wrote:
>> > This path could also been taken when doing a kdump instead of kexec
>> > path - hence the reset hadn't happen in the cpu-die shutdown paths.
>> 
>> But that's unsafe, as the hypervisor would continue to write fields
>> in that structure if it finds a need to.
> 
> That is OK. The kdump kernel boots from a reserved region so the
> area where the hypervisor keeps on writting is in the 'outside-kdump-kernel'
> boot area.

But it may invalidate what ends up in the dump.

Jan


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