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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-06-03 13:39:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-06-03 13:39:30 -0700 |
| commit | 93ce7948e38ffe6f9b4fd403c94c098bd892a5ff (patch) | |
| tree | 6561633ca32d06ecb23118522664ad83dd728fed /arch | |
| parent | 9be4cbd09da820a20d400670a45fc1571f6a13b8 (diff) | |
| parent | 75ed63d919400b803691a0c757ee23c6f767a625 (diff) | |
Merge tag 'efi-next-for-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull more EFI updates from Ard Biesheuvel:
"Follow-up tweaks for EFI changes - they mostly address issues
introduced this merge window, except for Heinrich's patch:
- fix new DXE service invocations for mixed mode
- use correct Kconfig symbol when setting PE header flag
- clean up the drivers/firmware/efi Kconfig dependencies so that
features that depend on CONFIG_EFI are hidden from the UI when the
symbol is not enabled.
Also included is a RISC-V bugfix from Heinrich to avoid read-write
mappings of read-only firmware regions in the EFI page tables"
* tag 'efi-next-for-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
efi: clean up Kconfig dependencies on CONFIG_EFI
efi/x86: libstub: Make DXE calls mixed mode safe
efi: x86: Fix config name for setting the NX-compatibility flag in the PE header
riscv: read-only pages should not be writable
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv/kernel/efi.c | 2 | ||||
| -rw-r--r-- | arch/x86/boot/header.S | 2 | ||||
| -rw-r--r-- | arch/x86/include/asm/efi.h | 9 |
3 files changed, 11 insertions, 2 deletions
diff --git a/arch/riscv/kernel/efi.c b/arch/riscv/kernel/efi.c index 024159298231..1aa540350abd 100644 --- a/arch/riscv/kernel/efi.c +++ b/arch/riscv/kernel/efi.c @@ -65,7 +65,7 @@ static int __init set_permissions(pte_t *ptep, unsigned long addr, void *data) if (md->attribute & EFI_MEMORY_RO) { val = pte_val(pte) & ~_PAGE_WRITE; - val = pte_val(pte) | _PAGE_READ; + val |= _PAGE_READ; pte = __pte(val); } if (md->attribute & EFI_MEMORY_XP) { diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S index 0352e4589efa..f912d7770130 100644 --- a/arch/x86/boot/header.S +++ b/arch/x86/boot/header.S @@ -163,7 +163,7 @@ extra_header_fields: .long 0x200 # SizeOfHeaders .long 0 # CheckSum .word IMAGE_SUBSYSTEM_EFI_APPLICATION # Subsystem (EFI application) -#ifdef CONFIG_DXE_MEM_ATTRIBUTES +#ifdef CONFIG_EFI_DXE_MEM_ATTRIBUTES .word IMAGE_DLL_CHARACTERISTICS_NX_COMPAT # DllCharacteristics #else .word 0 # DllCharacteristics diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h index bed74a0f2932..71943dce691e 100644 --- a/arch/x86/include/asm/efi.h +++ b/arch/x86/include/asm/efi.h @@ -270,6 +270,8 @@ static inline u32 efi64_convert_status(efi_status_t status) return (u32)(status | (u64)status >> 32); } +#define __efi64_split(val) (val) & U32_MAX, (u64)(val) >> 32 + #define __efi64_argmap_free_pages(addr, size) \ ((addr), 0, (size)) @@ -317,6 +319,13 @@ static inline u32 efi64_convert_status(efi_status_t status) #define __efi64_argmap_hash_log_extend_event(prot, fl, addr, size, ev) \ ((prot), (fl), 0ULL, (u64)(addr), 0ULL, (u64)(size), 0ULL, ev) +/* DXE services */ +#define __efi64_argmap_get_memory_space_descriptor(phys, desc) \ + (__efi64_split(phys), (desc)) + +#define __efi64_argmap_set_memory_space_descriptor(phys, size, flags) \ + (__efi64_split(phys), __efi64_split(size), __efi64_split(flags)) + /* * The macros below handle the plumbing for the argument mapping. To add a * mapping for a specific EFI method, simply define a macro |