On Thu, 2 Feb 2023 at 18:37, Kees Cook <keescook@xxxxxxxxxxxx> wrote: > > On Wed, Feb 01, 2023 at 02:25:38PM +0100, Ard Biesheuvel wrote: > > The EFI spec v2.10 introduces a global flag in the memory attributes > > table that indicates whether the EFI runtime code regions were emitted > > with BTI landing pads, and can therefore tolerate being mapped with BTI > > enforcement enabled. > > > > Add the generic plumbing for this, and wire it up for arm64. > > Looks nice! :) > > Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> > Thanks I've queued these up now in efi/next > > > > Cc: Catalin Marinas <catalin.marinas@xxxxxxx> > > Cc: Will Deacon <will@xxxxxxxxxx> > > Cc: Kees Cook <keescook@xxxxxxxxxxxx> > > Cc: Mark Rutland <mark.rutland@xxxxxxx> > > > > Ard Biesheuvel (2): > > efi: Discover BTI support in runtime services regions > > efi: arm64: Wire up BTI annotation in memory attributes table > > > > arch/arm/include/asm/efi.h | 2 +- > > arch/arm/kernel/efi.c | 5 +++-- > > arch/arm64/include/asm/efi.h | 3 ++- > > arch/arm64/kernel/efi.c | 18 +++++++++++++++--- > > arch/riscv/include/asm/efi.h | 2 +- > > arch/riscv/kernel/efi.c | 3 ++- > > arch/x86/platform/efi/efi_64.c | 3 ++- > > drivers/firmware/efi/memattr.c | 9 +++++++-- > > include/linux/efi.h | 8 ++++++-- > > 9 files changed, 39 insertions(+), 14 deletions(-) > > > > -- > > 2.39.0 > > > > -- > Kees Cook
