On Fri, 21 Sep 2018 at 10:14, Jeffrey Hugo <[email protected]> wrote:
>
> On 9/21/2018 10:32 AM, Ard Biesheuvel wrote:
> > Add support for persistent memory reservations across kexec reboot on EFI
> > systems by introducing a Linux-specific UEFI configuration table that points
> > to a linked list in memory that can be augmented by each successive kexec
> > kernel to describe regions in memory that the subsequent kernel should treat
> > as reserved.
> >
> > The specific use case for this feature is GICv3 ARM systems that are not
> > able to disable DMA access to LPI tables, meaning we have to reserve them
> > and make the next kernel reuse the existing tables rather than allocating
> > them from scratch.
>
> As far as I recall, Shanker Donthineni attempted to address a similar
> (the same?) issue.  I think we would be very interested, if that is the
> case.
>
> Is there another series that depends on these changes?  If not, can you
> describe the plan for this?
>

Marc Zyngier should have some patches out shortly for this.

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