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authorLinus Torvalds <torvalds@linux-foundation.org>2022-12-13 14:31:47 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2022-12-13 14:31:47 -0800
commitfc4c9f450493daef1c996c9d4b3c647ec3121509 (patch)
tree99078a5d34ba783b9b43092fe2c275784c7cab98 /arch/riscv
parent717e6eb49bdd98357d14c90d60a3409196b33cfc (diff)
parente8dfdf3162eb549d064b8c10b1564f7e8ee82591 (diff)
Merge tag 'efi-next-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI updates from Ard Biesheuvel: "Another fairly sizable pull request, by EFI subsystem standards. Most of the work was done by me, some of it in collaboration with the distro and bootloader folks (GRUB, systemd-boot), where the main focus has been on removing pointless per-arch differences in the way EFI boots a Linux kernel. - Refactor the zboot code so that it incorporates all the EFI stub logic, rather than calling the decompressed kernel as a EFI app. - Add support for initrd= command line option to x86 mixed mode. - Allow initrd= to be used with arbitrary EFI accessible file systems instead of just the one the kernel itself was loaded from. - Move some x86-only handling and manipulation of the EFI memory map into arch/x86, as it is not used anywhere else. - More flexible handling of any random seeds provided by the boot environment (i.e., systemd-boot) so that it becomes available much earlier during the boot. - Allow improved arch-agnostic EFI support in loaders, by setting a uniform baseline of supported features, and adding a generic magic number to the DOS/PE header. This should allow loaders such as GRUB or systemd-boot to reduce the amount of arch-specific handling substantially. - (arm64) Run EFI runtime services from a dedicated stack, and use it to recover from synchronous exceptions that might occur in the firmware code. - (arm64) Ensure that we don't allocate memory outside of the 48-bit addressable physical range. - Make EFI pstore record size configurable - Add support for decoding CXL specific CPER records" * tag 'efi-next-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: (43 commits) arm64: efi: Recover from synchronous exceptions occurring in firmware arm64: efi: Execute runtime services from a dedicated stack arm64: efi: Limit allocations to 48-bit addressable physical region efi: Put Linux specific magic number in the DOS header efi: libstub: Always enable initrd command line loader and bump version efi: stub: use random seed from EFI variable efi: vars: prohibit reading random seed variables efi: random: combine bootloader provided RNG seed with RNG protocol output efi/cper, cxl: Decode CXL Error Log efi/cper, cxl: Decode CXL Protocol Error Section efi: libstub: fix efi_load_initrd_dev_path() kernel-doc comment efi: x86: Move EFI runtime map sysfs code to arch/x86 efi: runtime-maps: Clarify purpose and enable by default for kexec efi: pstore: Add module parameter for setting the record size efi: xen: Set EFI_PARAVIRT for Xen dom0 boot on all architectures efi: memmap: Move manipulation routines into x86 arch tree efi: memmap: Move EFI fake memmap support into x86 arch tree efi: libstub: Undeprecate the command line initrd loader efi: libstub: Add mixed mode support to command line initrd loader efi: libstub: Permit mixed mode return types other than efi_status_t ...
Diffstat (limited to 'arch/riscv')
-rw-r--r--arch/riscv/include/asm/efi.h13
-rw-r--r--arch/riscv/kernel/image-vars.h6
2 files changed, 10 insertions, 9 deletions
diff --git a/arch/riscv/include/asm/efi.h b/arch/riscv/include/asm/efi.h
index e229d7be4b66..47d3ab0fcc36 100644
--- a/arch/riscv/include/asm/efi.h
+++ b/arch/riscv/include/asm/efi.h
@@ -35,13 +35,20 @@ static inline unsigned long efi_get_max_initrd_addr(unsigned long image_addr)
return ULONG_MAX;
}
-#define alloc_screen_info(x...) (&screen_info)
-
-static inline void free_screen_info(struct screen_info *si)
+static inline unsigned long efi_get_kimg_min_align(void)
{
+ /*
+ * RISC-V requires the kernel image to placed 2 MB aligned base for 64
+ * bit and 4MB for 32 bit.
+ */
+ return IS_ENABLED(CONFIG_64BIT) ? SZ_2M : SZ_4M;
}
+#define EFI_KIMG_PREFERRED_ADDRESS efi_get_kimg_min_align()
+
void efi_virtmap_load(void);
void efi_virtmap_unload(void);
+unsigned long stext_offset(void);
+
#endif /* _ASM_EFI_H */
diff --git a/arch/riscv/kernel/image-vars.h b/arch/riscv/kernel/image-vars.h
index d6e5f739905e..7e2962ef73f9 100644
--- a/arch/riscv/kernel/image-vars.h
+++ b/arch/riscv/kernel/image-vars.h
@@ -23,13 +23,7 @@
* linked at. The routines below are all implemented in assembler in a
* position independent manner
*/
-__efistub_memcmp = memcmp;
-__efistub_memchr = memchr;
-__efistub_strlen = strlen;
-__efistub_strnlen = strnlen;
__efistub_strcmp = strcmp;
-__efistub_strncmp = strncmp;
-__efistub_strrchr = strrchr;
__efistub__start = _start;
__efistub__start_kernel = _start_kernel;