On 2022-04-11 10:12, Paul Menzel wrote:
Dear Baskov,
Thank you for your patches.
Am 07.04.22 um 05:32 schrieb Baskov Evgeniy:
DXE services can be used to change memory attributes
on systems where EFI use stricter policies about memory
access rights and sets NX flag on some pages required by
DXE services can be used to change memory attributes
on systems where EFI use stricter policies about memory
access rights and sets NX flag on some pages required by
grub to executable.
Signed-off-by: Baskov Evgeniy
diff --git a/grub-core/kern/efi/efi.c b/grub-core/kern/efi/efi.c
index
ready [2].
[1] https://lkml.org/lkml/2022/3/3/532
[2] https://bugzilla.tianocore.org/show_bug.cgi?id=3519
Baskov Evgeniy(3):
efi: explicitly set memory attributes for memory
relocator: allocate trampoline in lower 640k
efi: provide definitions of DXE services table
grub-core
For simplification, allocate trampoline in lower memory
for every x86 variation.
This would help setting right attributes for memory
in UEFI environments that restricts execution of some
memory regions.
Signed-off-by: Baskov Evgeniy
diff --git a/grub-core/lib/i386/relocator.c b/grub-core/lib
.
Avoid modification if not necessary and only modify
system memory to reduce the possibility to encounter
firmware bugs.
Signed-off-by: Baskov Evgeniy
diff --git a/grub-core/kern/efi/mm.c b/grub-core/kern/efi/mm.c
index d8e411454..f6d1170d1 100644
--- a/grub-core/kern/efi/mm.c
+++ b/grub-core/kern
