ARM: 9255/1: efi/dump UEFI runtime page tables for ARM
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 on ARM. Acked-by: Ard Biesheuvel <ardb@kernel.org> Tested-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
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@ -21,6 +21,7 @@ struct ptdump_info {
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void ptdump_walk_pgd(struct seq_file *s, struct ptdump_info *info);
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void ptdump_walk_pgd(struct seq_file *s, struct ptdump_info *info);
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#ifdef CONFIG_ARM_PTDUMP_DEBUGFS
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#ifdef CONFIG_ARM_PTDUMP_DEBUGFS
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#define EFI_RUNTIME_MAP_END SZ_1G
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void ptdump_debugfs_register(struct ptdump_info *info, const char *name);
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void ptdump_debugfs_register(struct ptdump_info *info, const char *name);
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#else
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#else
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static inline void ptdump_debugfs_register(struct ptdump_info *info,
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static inline void ptdump_debugfs_register(struct ptdump_info *info,
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@ -23,6 +23,7 @@ struct ptdump_info {
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void ptdump_walk(struct seq_file *s, struct ptdump_info *info);
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void ptdump_walk(struct seq_file *s, struct ptdump_info *info);
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#ifdef CONFIG_PTDUMP_DEBUGFS
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#ifdef CONFIG_PTDUMP_DEBUGFS
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#define EFI_RUNTIME_MAP_END DEFAULT_MAP_WINDOW_64
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void __init ptdump_debugfs_register(struct ptdump_info *info, const char *name);
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void __init ptdump_debugfs_register(struct ptdump_info *info, const char *name);
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#else
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#else
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static inline void ptdump_debugfs_register(struct ptdump_info *info,
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static inline void ptdump_debugfs_register(struct ptdump_info *info,
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@ -25,14 +25,14 @@
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#include <asm/mmu.h>
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#include <asm/mmu.h>
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#include <asm/pgalloc.h>
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#include <asm/pgalloc.h>
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#if defined(CONFIG_PTDUMP_DEBUGFS) && defined(CONFIG_ARM64)
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#if defined(CONFIG_PTDUMP_DEBUGFS) || defined(CONFIG_ARM_PTDUMP_DEBUGFS)
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#include <asm/ptdump.h>
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#include <asm/ptdump.h>
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static struct ptdump_info efi_ptdump_info = {
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static struct ptdump_info efi_ptdump_info = {
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.mm = &efi_mm,
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.mm = &efi_mm,
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.markers = (struct addr_marker[]){
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.markers = (struct addr_marker[]){
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{ 0, "UEFI runtime start" },
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{ 0, "UEFI runtime start" },
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{ DEFAULT_MAP_WINDOW_64, "UEFI runtime end" },
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{ EFI_RUNTIME_MAP_END, "UEFI runtime end" },
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{ -1, NULL }
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{ -1, NULL }
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},
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},
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.base_addr = 0,
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.base_addr = 0,
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