diff options
| author |   Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2018-09-21 09:32:46 -0700 |
|---|---|---|
| committer | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2018-09-26 12:03:57 +0200 |
| commit | a23d3bb05ccbd815c79293d2207fedede0b3515d (patch) | |
| tree | e6516189fd4911feabcc212e2639402f2864bb38 /include/linux/efi.h | |
| parent | efi/arm: libstub: add a root memreserve config table (diff) | |
| download | wireguard-linux-a23d3bb05ccbd815c79293d2207fedede0b3515d.tar.xz wireguard-linux-a23d3bb05ccbd815c79293d2207fedede0b3515d.zip | |
efi: add API to reserve memory persistently across kexec reboot
Add kernel plumbing to reserve memory regions persistently on a EFI
system by adding entries to the MEMRESERVE linked list.
Tested-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Diffstat (limited to 'include/linux/efi.h')
| -rw-r--r-- | include/linux/efi.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/efi.h b/include/linux/efi.h index a5cb580472c5..22e4de9d3700 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -1043,6 +1043,7 @@ extern int __init efi_uart_console_only (void); extern u64 efi_mem_desc_end(efi_memory_desc_t *md); extern int efi_mem_desc_lookup(u64 phys_addr, efi_memory_desc_t *out_md); extern void efi_mem_reserve(phys_addr_t addr, u64 size); +extern int efi_mem_reserve_persistent(phys_addr_t addr, u64 size); extern void efi_initialize_iomem_resources(struct resource *code_resource, struct resource *data_resource, struct resource *bss_resource); extern void efi_reserve_boot_services(void); |