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authorAnshuman Khandual <anshuman.khandual@arm.com>2020-09-04 14:00:59 +0530
committerWill Deacon <will@kernel.org>2020-09-07 22:04:27 +0100
commitc048ddf86cdd066db283ce838a0049d2bbefb9e5 (patch)
tree44fce5da6a098a49f76e632569dc83d71bdb8557 /arch/arm64/mm
parentf75aef392f869018f78cfedf3c320a6b3fcfda6b (diff)
arm64/mm/ptdump: Add address markers for BPF regions
Kernel virtual region [BPF_JIT_REGION_START..BPF_JIT_REGION_END] is missing from address_markers[], hence relevant page table entries are not displayed with /sys/kernel/debug/kernel_page_tables. This adds those missing markers. While here, also rename arch/arm64/mm/dump.c which sounds bit ambiguous, as arch/arm64/mm/ptdump.c instead. Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Reviewed-by: Steven Price <steven.price@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Steven Price <steven.price@arm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Link: https://lore.kernel.org/r/1599208259-11191-1-git-send-email-anshuman.khandual@arm.com Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/mm')
-rw-r--r--arch/arm64/mm/Makefile2
-rw-r--r--arch/arm64/mm/ptdump.c (renamed from arch/arm64/mm/dump.c)2
2 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm64/mm/Makefile b/arch/arm64/mm/Makefile
index d91030f0ffee..2a1d275cd4d7 100644
--- a/arch/arm64/mm/Makefile
+++ b/arch/arm64/mm/Makefile
@@ -4,7 +4,7 @@ obj-y := dma-mapping.o extable.o fault.o init.o \
ioremap.o mmap.o pgd.o mmu.o \
context.o proc.o pageattr.o
obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
-obj-$(CONFIG_PTDUMP_CORE) += dump.o
+obj-$(CONFIG_PTDUMP_CORE) += ptdump.o
obj-$(CONFIG_PTDUMP_DEBUGFS) += ptdump_debugfs.o
obj-$(CONFIG_NUMA) += numa.o
obj-$(CONFIG_DEBUG_VIRTUAL) += physaddr.o
diff --git a/arch/arm64/mm/dump.c b/arch/arm64/mm/ptdump.c
index 0b8da1cc1c07..265284dc942d 100644
--- a/arch/arm64/mm/dump.c
+++ b/arch/arm64/mm/ptdump.c
@@ -41,6 +41,8 @@ static struct addr_marker address_markers[] = {
{ 0 /* KASAN_SHADOW_START */, "Kasan shadow start" },
{ KASAN_SHADOW_END, "Kasan shadow end" },
#endif
+ { BPF_JIT_REGION_START, "BPF start" },
+ { BPF_JIT_REGION_END, "BPF end" },
{ MODULES_VADDR, "Modules start" },
{ MODULES_END, "Modules end" },
{ VMALLOC_START, "vmalloc() area" },