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authorMa Wupeng <mawupeng1@huawei.com>2022-06-14 12:21:52 +0300
committerArd Biesheuvel <ardb@kernel.org>2022-06-15 13:11:19 +0300
commit6365a1935c5151455812e96d8de434c551dc0d98 (patch)
tree38866d9dd01dbfe2d82b4eada37e356064f591d0 /include/linux/efi.h
parentf2906aa863381afb0015a9eb7fefad885d4e5a56 (diff)
downloadlinux-6365a1935c5151455812e96d8de434c551dc0d98.tar.xz
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 <mawupeng1@huawei.com> Link: https://lore.kernel.org/r/20220614092156.1972846-2-mawupeng1@huawei.com [ardb: fix subject to better reflect the payload] Acked-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'include/linux/efi.h')
-rw-r--r--include/linux/efi.h3
1 files changed, 3 insertions, 0 deletions
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);