Sorry, forget to Cc Ard and efi maillist, do it now.
On 2022/9/30 18:10, Kefeng Wang wrote:
UEFI runtime page tables dump only for ARM64 at present,
but ARM support EFI and ARM_PTDUMP_DEBUGFS now. Since
ARM could potentially execute with a 1G/3G user/kernel
split, choosing 1G as the upper limit for UEFI runtime
end, with this, we could enable UEFI runtime page tables.
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
---
v2: update upper limit for ARM, only build test due to
my qemu without UEFI boot support.
arch/arm/include/asm/ptdump.h | 1 +
arch/arm64/include/asm/ptdump.h | 1 +
drivers/firmware/efi/arm-runtime.c | 4 ++--
3 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/arm/include/asm/ptdump.h b/arch/arm/include/asm/ptdump.h
index 0c2d3d0d4cc6..aad1d034136c 100644
--- a/arch/arm/include/asm/ptdump.h
+++ b/arch/arm/include/asm/ptdump.h
@@ -21,6 +21,7 @@ struct ptdump_info {
void ptdump_walk_pgd(struct seq_file *s, struct ptdump_info *info);
#ifdef CONFIG_ARM_PTDUMP_DEBUGFS
+#define EFI_RUNTIME_MAP_END SZ_1G
void ptdump_debugfs_register(struct ptdump_info *info, const char *name);
#else
static inline void ptdump_debugfs_register(struct ptdump_info *info,
diff --git a/arch/arm64/include/asm/ptdump.h b/arch/arm64/include/asm/ptdump.h
index b1dd7ecff7ef..581caac525b0 100644
--- a/arch/arm64/include/asm/ptdump.h
+++ b/arch/arm64/include/asm/ptdump.h
@@ -23,6 +23,7 @@ struct ptdump_info {
void ptdump_walk(struct seq_file *s, struct ptdump_info *info);
#ifdef CONFIG_PTDUMP_DEBUGFS
+#define EFI_RUNTIME_MAP_END DEFAULT_MAP_WINDOW_64
void __init ptdump_debugfs_register(struct ptdump_info *info, const char *name);
#else
static inline void ptdump_debugfs_register(struct ptdump_info *info,
diff --git a/drivers/firmware/efi/arm-runtime.c b/drivers/firmware/efi/arm-runtime.c
index 3359ae2adf24..8f8ae479061b 100644
--- a/drivers/firmware/efi/arm-runtime.c
+++ b/drivers/firmware/efi/arm-runtime.c
@@ -25,14 +25,14 @@
#include <asm/mmu.h>
#include <asm/pgalloc.h>
-#if defined(CONFIG_PTDUMP_DEBUGFS) && defined(CONFIG_ARM64)
+#if defined(CONFIG_PTDUMP_DEBUGFS) || defined(CONFIG_ARM_PTDUMP_DEBUGFS)
#include <asm/ptdump.h>
static struct ptdump_info efi_ptdump_info = {
.mm = &efi_mm,
.markers = (struct addr_marker[]){
{ 0, "UEFI runtime start" },
- { DEFAULT_MAP_WINDOW_64, "UEFI runtime end" },
+ { EFI_RUNTIME_MAP_END, "UEFI runtime end" },
{ -1, NULL }
},
.base_addr = 0,
