Re: [Xen-devel] [PATCH] x86/setup: do not relocate below the end of current Xen image placement

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 28.11.17 at 13:47, <daniel.kiper@xxxxxxxxxx> wrote:
> On Tue, Nov 28, 2017 at 04:51:51AM -0700, Jan Beulich wrote:
>> >>> On 28.11.17 at 12:32, <daniel.kiper@xxxxxxxxxx> wrote:
>> > I have a feeling that you can trigger this also when xen.efi
>> > is launched directly from EFI. However, this may require some
>> > fiddling with crashkernel values.
>>
>> I don't think so, no - that case was specifically fixed already
>> (I've pointed at that commit in another sub-thread).
> 
> Ugh... Right, it looks that I misread the patch. Anyway, it seems to
> me that is easy to fix. We should change line xen/arch/x86/setup.c:907
> 
> if ( efi_enabled(EFI_LOADER) )
> 
> to
> 
> if ( !xen_phys_start )

But xen_phys_start is non-zero when efi_enabled(EFI_LOADER).

> Then all cases should be covered.

I don't think that's going to be enough: Once Xen gets moved,
the area to exclude needs to be updated too.

Jan


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