From a9e1a3d84e4a0ea560ed4d84c28d06dbfdffed22 Mon Sep 17 00:00:00 2001 From: Baoquan He Date: Thu, 14 Sep 2023 11:31:35 +0800 Subject: crash_core: change the prototype of function parse_crashkernel() Add two parameters 'low_size' and 'high' to function parse_crashkernel(), later crashkernel=,high|low parsing will be added. Make adjustments in all call sites of parse_crashkernel() in arch. Link: https://lkml.kernel.org/r/20230914033142.676708-3-bhe@redhat.com Signed-off-by: Baoquan He Reviewed-by: Zhen Lei Cc: Catalin Marinas Cc: Chen Jiahao Signed-off-by: Andrew Morton --- arch/arm/kernel/setup.c | 3 ++- arch/arm64/mm/init.c | 2 +- arch/ia64/kernel/setup.c | 2 +- arch/loongarch/kernel/setup.c | 4 +++- arch/mips/kernel/setup.c | 3 ++- arch/powerpc/kernel/fadump.c | 2 +- arch/powerpc/kexec/core.c | 2 +- arch/powerpc/mm/nohash/kaslr_booke.c | 2 +- arch/riscv/mm/init.c | 2 +- arch/s390/kernel/setup.c | 4 ++-- arch/sh/kernel/machine_kexec.c | 2 +- arch/x86/kernel/setup.c | 3 ++- include/linux/crash_core.h | 3 ++- kernel/crash_core.c | 15 ++++++++++++--- 14 files changed, 32 insertions(+), 17 deletions(-) diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index c66b560562b3..e2bb7afd0683 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -1010,7 +1010,8 @@ static void __init reserve_crashkernel(void) total_mem = get_total_mem(); ret = parse_crashkernel(boot_command_line, total_mem, - &crash_size, &crash_base); + &crash_size, &crash_base, + NULL, NULL); /* invalid value specified or crashkernel=0 */ if (ret || !crash_size) return; diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 8a0f8604348b..801c59c39a8f 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -142,7 +142,7 @@ static void __init reserve_crashkernel(void) /* crashkernel=X[@offset] */ ret = parse_crashkernel(cmdline, memblock_phys_mem_size(), - &crash_size, &crash_base); + &crash_size, &crash_base, NULL, NULL); if (ret == -ENOENT) { ret = parse_crashkernel_high(cmdline, 0, &crash_size, &crash_base); if (ret || !crash_size) diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index 5a55ac82c13a..4faea2d2cf07 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -277,7 +277,7 @@ static void __init setup_crashkernel(unsigned long total, int *n) int ret; ret = parse_crashkernel(boot_command_line, total, - &size, &base); + &size, &base, NULL, NULL); if (ret == 0 && size > 0) { if (!base) { sort_regions(rsvd_region, *n); diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c index 7783f0a3d742..4de32b07c0dc 100644 --- a/arch/loongarch/kernel/setup.c +++ b/arch/loongarch/kernel/setup.c @@ -267,7 +267,9 @@ static void __init arch_parse_crashkernel(void) unsigned long long crash_base, crash_size; total_mem = memblock_phys_mem_size(); - ret = parse_crashkernel(boot_command_line, total_mem, &crash_size, &crash_base); + ret = parse_crashkernel(boot_command_line, total_mem, + &crash_size, &crash_base, + NULL, NULL); if (ret < 0 || crash_size <= 0) return; diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index cb871eb784a7..08321c945ac4 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -460,7 +460,8 @@ static void __init mips_parse_crashkernel(void) total_mem = memblock_phys_mem_size(); ret = parse_crashkernel(boot_command_line, total_mem, - &crash_size, &crash_base); + &crash_size, &crash_base, + NULL, NULL); if (ret != 0 || crash_size <= 0) return; diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c index 3ff2da7b120b..d14eda1e8589 100644 --- a/arch/powerpc/kernel/fadump.c +++ b/arch/powerpc/kernel/fadump.c @@ -313,7 +313,7 @@ static __init u64 fadump_calculate_reserve_size(void) * memory at a predefined offset. */ ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(), - &size, &base); + &size, &base, NULL, NULL); if (ret == 0 && size > 0) { unsigned long max_size; diff --git a/arch/powerpc/kexec/core.c b/arch/powerpc/kexec/core.c index de64c7962991..9346c960b296 100644 --- a/arch/powerpc/kexec/core.c +++ b/arch/powerpc/kexec/core.c @@ -109,7 +109,7 @@ void __init reserve_crashkernel(void) total_mem_sz = memory_limit ? memory_limit : memblock_phys_mem_size(); /* use common parsing */ ret = parse_crashkernel(boot_command_line, total_mem_sz, - &crash_size, &crash_base); + &crash_size, &crash_base, NULL, NULL); if (ret == 0 && crash_size > 0) { crashk_res.start = crash_base; crashk_res.end = crash_base + crash_size - 1; diff --git a/arch/powerpc/mm/nohash/kaslr_booke.c b/arch/powerpc/mm/nohash/kaslr_booke.c index 2fb3edafe9ab..b4f2786a7d2b 100644 --- a/arch/powerpc/mm/nohash/kaslr_booke.c +++ b/arch/powerpc/mm/nohash/kaslr_booke.c @@ -178,7 +178,7 @@ static void __init get_crash_kernel(void *fdt, unsigned long size) int ret; ret = parse_crashkernel(boot_command_line, size, &crash_size, - &crash_base); + &crash_base, NULL, NULL); if (ret != 0 || crash_size == 0) return; if (crash_base == 0) diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index 0798bd861dcb..9fe448900059 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -1388,7 +1388,7 @@ static void __init reserve_crashkernel(void) } ret = parse_crashkernel(cmdline, memblock_phys_mem_size(), - &crash_size, &crash_base); + &crash_size, &crash_base, NULL, NULL); if (ret == -ENOENT) { /* Fallback to crashkernel=X,[high,low] */ ret = parse_crashkernel_high(cmdline, 0, &crash_size, &crash_base); diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index de6ad0fb2328..e555b576d3c8 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -625,8 +625,8 @@ static void __init reserve_crashkernel(void) phys_addr_t low, high; int rc; - rc = parse_crashkernel(boot_command_line, ident_map_size, &crash_size, - &crash_base); + rc = parse_crashkernel(boot_command_line, ident_map_size, + &crash_size, &crash_base, NULL, NULL); crash_base = ALIGN(crash_base, KEXEC_CRASH_MEM_ALIGN); crash_size = ALIGN(crash_size, KEXEC_CRASH_MEM_ALIGN); diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c index 223c14f44af7..fa3a7b36190a 100644 --- a/arch/sh/kernel/machine_kexec.c +++ b/arch/sh/kernel/machine_kexec.c @@ -154,7 +154,7 @@ void __init reserve_crashkernel(void) int ret; ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(), - &crash_size, &crash_base); + &crash_size, &crash_base, NULL, NULL); if (ret == 0 && crash_size > 0) { crashk_res.start = crash_base; crashk_res.end = crash_base + crash_size - 1; diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index b098b1fa2470..655c04812905 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -553,7 +553,8 @@ static void __init reserve_crashkernel(void) total_mem = memblock_phys_mem_size(); /* crashkernel=XM */ - ret = parse_crashkernel(boot_command_line, total_mem, &crash_size, &crash_base); + ret = parse_crashkernel(boot_command_line, total_mem, + &crash_size, &crash_base, NULL, NULL); if (ret != 0 || crash_size <= 0) { /* crashkernel=X,high */ ret = parse_crashkernel_high(boot_command_line, total_mem, diff --git a/include/linux/crash_core.h b/include/linux/crash_core.h index 0c06561bf5ff..6156355ef831 100644 --- a/include/linux/crash_core.h +++ b/include/linux/crash_core.h @@ -80,7 +80,8 @@ Elf_Word *append_elf_note(Elf_Word *buf, char *name, unsigned int type, void final_note(Elf_Word *buf); int __init parse_crashkernel(char *cmdline, unsigned long long system_ram, - unsigned long long *crash_size, unsigned long long *crash_base); + unsigned long long *crash_size, unsigned long long *crash_base, + unsigned long long *low_size, bool *high); int parse_crashkernel_high(char *cmdline, unsigned long long system_ram, unsigned long long *crash_size, unsigned long long *crash_base); int parse_crashkernel_low(char *cmdline, unsigned long long system_ram, diff --git a/kernel/crash_core.c b/kernel/crash_core.c index 507113932aa9..33ced5b5ed4e 100644 --- a/kernel/crash_core.c +++ b/kernel/crash_core.c @@ -287,10 +287,19 @@ static int __init __parse_crashkernel(char *cmdline, int __init parse_crashkernel(char *cmdline, unsigned long long system_ram, unsigned long long *crash_size, - unsigned long long *crash_base) + unsigned long long *crash_base, + unsigned long long *low_size, + bool *high) { - return __parse_crashkernel(cmdline, system_ram, crash_size, crash_base, - NULL); + int ret; + + /* crashkernel=X[@offset] */ + ret = __parse_crashkernel(cmdline, system_ram, crash_size, + crash_base, NULL); + if (!high) + return ret; + + return 0; } int __init parse_crashkernel_high(char *cmdline, -- cgit v1.2.3