From 454395e18ff12d2728ee458695160e9ab4899e33 Mon Sep 17 00:00:00 2001 From: Pingfan Liu Date: Tue, 18 Jan 2022 15:48:11 +0800 Subject: arm64: read VA_BITS from kcore for 52-bits VA kernel phys_to_virt() calculates virtual address. As a important factor, page_offset is excepted to be accurate. Since arm64 kernel exposes va_bits through vmcore, using it. Signed-off-by: Pingfan Liu Reviewed-by: Philipp Rudo Signed-off-by: Simon Horman --- util_lib/elf_info.c | 5 +++++ util_lib/include/elf_info.h | 1 + 2 files changed, 6 insertions(+) (limited to 'util_lib') diff --git a/util_lib/elf_info.c b/util_lib/elf_info.c index 5574c7f..d252eff 100644 --- a/util_lib/elf_info.c +++ b/util_lib/elf_info.c @@ -310,6 +310,8 @@ int get_pt_load(int idx, #define NOT_FOUND_LONG_VALUE (-1) +void (*arch_scan_vmcoreinfo)(char *pos); + void scan_vmcoreinfo(char *start, size_t size) { char *last = start + size - 1; @@ -551,6 +553,9 @@ void scan_vmcoreinfo(char *start, size_t size) } } + if (arch_scan_vmcoreinfo != NULL) + (*arch_scan_vmcoreinfo)(pos); + if (last_line) break; } diff --git a/util_lib/include/elf_info.h b/util_lib/include/elf_info.h index f550d86..fdf4c3d 100644 --- a/util_lib/include/elf_info.h +++ b/util_lib/include/elf_info.h @@ -31,5 +31,6 @@ int get_pt_load(int idx, int read_phys_offset_elf_kcore(int fd, long *phys_off); int read_elf(int fd); void dump_dmesg(int fd, void (*handler)(char*, unsigned int)); +extern void (*arch_scan_vmcoreinfo)(char *pos); #endif /* ELF_INFO_H */ -- cgit