lkml.org 
[lkml]   [2022]   [Jun]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v4 2/6] arm64/mirror: arm64 enabling - find mirrored memory ranges
Date
From: Ma Wupeng <mawupeng1@huawei.com>

Commit b05b9f5f9dcf ("x86, mirror: x86 enabling - find mirrored memory ranges")
introduced mirrored memory support for x86 and this could be used on arm64.

Since we only support this feature on arm64, efi_find_mirror() won't be placed
into efi_init(), which is used by riscv/arm/arm64, it is added in setup_arch()
to scan the memory map and mark mirrored memory in memblock.

Signed-off-by: Ma Wupeng <mawupeng1@huawei.com>
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
Documentation/admin-guide/kernel-parameters.txt | 2 +-
arch/arm64/kernel/setup.c | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 8090130b544b..e3537646b6f7 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2301,7 +2301,7 @@

keepinitrd [HW,ARM]

- kernelcore= [KNL,X86,IA-64,PPC]
+ kernelcore= [KNL,X86,IA-64,PPC,ARM64]
Format: nn[KMGTPE] | nn% | "mirror"
This parameter specifies the amount of memory usable by
the kernel for non-movable allocations. The requested
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index cf3a759f10d4..6e9acd7ecf0f 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -328,6 +328,7 @@ void __init __no_sanitize_address setup_arch(char **cmdline_p)

xen_early_init();
efi_init();
+ efi_find_mirror();

if (!efi_enabled(EFI_BOOT) && ((u64)_text % MIN_KIMG_ALIGN) != 0)
pr_warn(FW_BUG "Kernel image misaligned at boot, please fix your bootloader!");
--
2.25.1
\
 
 \ /
  Last update: 2022-06-13 10:01    [W:0.317 / U:0.164 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site