From 6365a1935c5151455812e96d8de434c551dc0d98 Mon Sep 17 00:00:00 2001 From: Ma Wupeng Date: Tue, 14 Jun 2022 17:21:52 +0800 Subject: efi: Make code to find mirrored memory ranges generic Commit b05b9f5f9dcf ("x86, mirror: x86 enabling - find mirrored memory ranges") introduce the efi_find_mirror() function on x86. In order to reuse the API we make it public. Arm64 can support mirrored memory too, so function efi_find_mirror() is added to efi_init() to this support for arm64. Since efi_init() is shared by ARM, arm64 and riscv, this patch will bring mirror memory support for these architectures, but this support is only tested in arm64. Signed-off-by: Ma Wupeng Link: https://lore.kernel.org/r/20220614092156.1972846-2-mawupeng1@huawei.com [ardb: fix subject to better reflect the payload] Acked-by: Mike Rapoport Signed-off-by: Ard Biesheuvel --- include/linux/efi.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux/efi.h') diff --git a/include/linux/efi.h b/include/linux/efi.h index 7d9b0bb47eb3..53f64c14a525 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -872,6 +872,7 @@ static inline bool efi_rt_services_supported(unsigned int mask) { return (efi.runtime_supported_mask & mask) == mask; } +extern void efi_find_mirror(void); #else static inline bool efi_enabled(int feature) { @@ -889,6 +890,8 @@ static inline bool efi_rt_services_supported(unsigned int mask) { return false; } + +static inline void efi_find_mirror(void) {} #endif extern int efi_status_to_err(efi_status_t status); -- cgit v1.2.3