Messages in this thread | | | Date | Sat, 8 Oct 2022 14:37:31 +0800 | Subject | Re: [PATCH v2] efi/arm: dump UEFI runtime page tables for ARM | From | Kefeng Wang <> |
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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@huawei.com> > --- > 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,
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