> >> I agree. Keep it simple. If the EFI crap fails, then assist with the
> >> reboot and otherwise just kill it.
> >
> > The reasons for saving old memory map are (in my view, these are the
> > less important ones because they are very unlikely to happen)
> >
> > 1. Make sure that a memory
On 5 September 2018 at 19:53, Prakhya, Sai Praneeth
wrote:
>> On Wed, 5 Sep 2018, Ard Biesheuvel wrote:
>> > On 5 September 2018 at 14:56, Peter Zijlstra wrote:
>> > > On Wed, Sep 05, 2018 at 02:27:49PM +0200, Ard Biesheuvel wrote:
>> > >> Would we still need to preserve the old memory map in
> On Wed, 5 Sep 2018, Ard Biesheuvel wrote:
> > On 5 September 2018 at 14:56, Peter Zijlstra wrote:
> > > On Wed, Sep 05, 2018 at 02:27:49PM +0200, Ard Biesheuvel wrote:
> > >> Would we still need to preserve the old memory map in that case?
> > >
> > > I thought the reason for having this was
On Wed, 5 Sep 2018, Ard Biesheuvel wrote:
> On 5 September 2018 at 14:56, Peter Zijlstra wrote:
> > On Wed, Sep 05, 2018 at 02:27:49PM +0200, Ard Biesheuvel wrote:
> >> Would we still need to preserve the old memory map in that case?
> >
> > I thought the reason for having this was being able to
On 5 September 2018 at 14:56, Peter Zijlstra wrote:
> On Wed, Sep 05, 2018 at 02:27:49PM +0200, Ard Biesheuvel wrote:
>> On 5 September 2018 at 00:12, Sai Praneeth Prakhya
>> wrote:
>> > From: Sai Praneeth
>> >
>> > The efi page fault handler that recovers from page faults caused by the
>> >
On Wed, Sep 05, 2018 at 02:27:49PM +0200, Ard Biesheuvel wrote:
> On 5 September 2018 at 00:12, Sai Praneeth Prakhya
> wrote:
> > From: Sai Praneeth
> >
> > The efi page fault handler that recovers from page faults caused by the
> > firmware needs the original memory map passed by the firmware.
On 5 September 2018 at 00:12, Sai Praneeth Prakhya
wrote:
> From: Sai Praneeth
>
> The efi page fault handler that recovers from page faults caused by the
> firmware needs the original memory map passed by the firmware. It looks
> up this memory map to find the type of the memory region at which
On Tue, Sep 04, 2018 at 03:12:27PM -0700, Sai Praneeth Prakhya wrote:
> +void __init efi_save_original_memmap(void)
> +{
> + efi_memory_desc_t *md;
> + void *remapped_phys, *new_md;
> + phys_addr_t new_phys, new_size;
> +
> + new_size = efi.memmap.desc_size * efi.memmap.nr_map;
> +
