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| author | Matt Fleming <matt@codeblueprint.co.uk> | 2016-02-29 20:30:39 +0000 |
|---|---|---|
| committer | Matt Fleming <matt@codeblueprint.co.uk> | 2016-09-09 16:07:46 +0100 |
| commit | 60863c0d1a96b740048cc7d94a2d00d6f89ba3d8 (patch) | |
| tree | 2b538c39017d04a50ae1d43c58fe40a5b0e446d9 /include/linux/efi.h | |
| parent | c8c1a4c5e4ead0d2dcf0f0bcb8bdbdcf877fb3bb (diff) | |
| download | lwn-60863c0d1a96b740048cc7d94a2d00d6f89ba3d8.tar.gz lwn-60863c0d1a96b740048cc7d94a2d00d6f89ba3d8.zip | |
efi: Split out EFI memory map functions into new file
Also move the functions from the EFI fake mem driver since future
patches will require access to the memmap insertion code even if
CONFIG_EFI_FAKE_MEM isn't enabled.
This will be useful when we need to build custom EFI memory maps to
allow drivers to mark regions as reserved.
Tested-by: Dave Young <dyoung@redhat.com> [kexec/kdump]
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> [arm]
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Peter Jones <pjones@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Diffstat (limited to 'include/linux/efi.h')
| -rw-r--r-- | include/linux/efi.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/efi.h b/include/linux/efi.h index f149676b2fcd..84c8638c7a8b 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -20,6 +20,7 @@ #include <linux/ioport.h> #include <linux/pfn.h> #include <linux/pstore.h> +#include <linux/range.h> #include <linux/reboot.h> #include <linux/uuid.h> #include <linux/screen_info.h> @@ -691,6 +692,11 @@ struct efi_memory_map { bool late; }; +struct efi_mem_range { + struct range range; + u64 attribute; +}; + struct efi_fdt_params { u64 system_table; u64 mmap; @@ -917,6 +923,10 @@ extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr); extern int __init efi_memmap_init_early(struct efi_memory_map_data *data); extern int __init efi_memmap_init_late(phys_addr_t addr, unsigned long size); extern void __init efi_memmap_unmap(void); +extern int __init efi_memmap_split_count(efi_memory_desc_t *md, + struct range *range); +extern void __init efi_memmap_insert(struct efi_memory_map *old_memmap, + void *buf, struct efi_mem_range *mem); extern int efi_config_init(efi_config_table_type_t *arch_tables); #ifdef CONFIG_EFI_ESRT |