> Thanks Sai for this work. I think this a step in the right direction.
> I tested this on qemu x86_64 with OVMF firmware modified to access some
> random address in the EFI_Reserved_Region. I was able to reboot the qemu
> instance successfully with the patches (see logs below) while without the
>
On Fri, Sep 7, 2018 at 4:57 AM, Sai Praneeth Prakhya
wrote:
> From: Sai Praneeth
>
> There may exist some buggy UEFI firmware implementations that access efi
> memory regions other than EFI_RUNTIME_SERVICES_ even after
> the kernel has assumed control of the platform. This violates UEFI
>
> > The efi page fault handler will check if the access is by
> > efi_reset_system().
> > 1. If so, then the efi page fault handler will reboot the machine
> >through BIOS and not through efi_reset_system().
> > 2. If not, then the efi page fault handler will freeze efi_rts_wq and
> >
On 7 September 2018 at 01:27, Sai Praneeth Prakhya
wrote:
> From: Sai Praneeth
>
> There may exist some buggy UEFI firmware implementations that access efi
> memory regions other than EFI_RUNTIME_SERVICES_ even after
> the kernel has assumed control of the platform. This violates UEFI
>
