* Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx> wrote: > On Fri, 07 Aug, at 09:37:00AM, Matt Fleming wrote: > > From: "Jonathan (Zhixiong) Zhang" <zjzhang@xxxxxxxxxxxxxx> > > > > Table 8 of UEFI 2.5 section 2.3.6.1 defines mappings from EFI > > memory types to MAIR attribute encodings for arm64. > > > > If the physical address has memory attributes defined by EFI > > memmap as EFI_MEMORY_[UC|WC|WT], return approprate page protection > > type according to the UEFI spec. Otherwise, return PAGE_KERNEL. > > > > Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx> > > Acked-by: Hanjun Guo <hanjun.guo@xxxxxxxxxx> > > Signed-off-by: Jonathan (Zhixiong) Zhang <zjzhang@xxxxxxxxxxxxxx> > > Signed-off-by: Matt Fleming <matt.fleming@xxxxxxxxx> > > --- > > arch/arm64/include/asm/acpi.h | 27 +++++++++++++++++++++++++++ > > 1 file changed, 27 insertions(+) > > > > Ard Biesheuvel has brought up a concern with this patch and it's > currently under discussion here, > > https://lkml.kernel.org/r/CAKv+Gu8+g3dTaNzXjSD=5GxproaHM+Eu1hLmRWp7cVrQimzbHQ@xxxxxxxxxxxxxx Ok, I applied the patches up to this point, to tip:core/efi, to get the ball rolling - and will push them out after testing: 8d446c8647c9 arm64/mm: Add PROT_DEVICE_nGnRnE and PROT_NORMAL_WT b40227fbfb1f acpi, x86: Implement arch_apei_get_mem_attributes() 7bf793115dd9 efi, x86: Rearrange efi_mem_attributes() fa5c35011a8d Revert "x86/efi: Request desired alignment via the PE/COFF headers" 248fbcd5aee0 x86/efi-bgrt: Switch pr_err() to pr_debug() for invalid BGRT 87db73aebf55 efi: Add support for EFI_MEMORY_RO attribute introduced by UEFIv2.5 Let me know when the concerns are resolved or there are other patches to add. Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
