diff options
Diffstat (limited to 'meta/recipes-kernel/kexec/kexec-tools/0003-kexec-ARM-Fix-add_buffer_phys_virt-align-issue.patch')
| -rw-r--r-- | meta/recipes-kernel/kexec/kexec-tools/0003-kexec-ARM-Fix-add_buffer_phys_virt-align-issue.patch | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/meta/recipes-kernel/kexec/kexec-tools/0003-kexec-ARM-Fix-add_buffer_phys_virt-align-issue.patch b/meta/recipes-kernel/kexec/kexec-tools/0003-kexec-ARM-Fix-add_buffer_phys_virt-align-issue.patch new file mode 100644 index 0000000000..832fe67716 --- /dev/null +++ b/meta/recipes-kernel/kexec/kexec-tools/0003-kexec-ARM-Fix-add_buffer_phys_virt-align-issue.patch @@ -0,0 +1,49 @@ +From 55e583d20651e829afbbc8dba0f8ec3017cda2d5 Mon Sep 17 00:00:00 2001 +From: Haiqing Bai <Haiqing.Bai@windriver.com> +Date: Mon, 9 Jan 2017 15:26:29 +0800 +Subject: [PATCH] kexec: ARM: Fix add_buffer_phys_virt() align issue + +When "CONFIG_ARM_LPAE" is enabled,3 level page table +is used by MMU, the "SECTION_SIZE" is defined with +(1 << 21), but 'add_buffer_phys_virt()' hardcode this +to (1 << 20). + +Upstream-Status: Pending + +Suggested-By:fredrik.markstrom@gmail.com +Signed-off-by: Haiqing Bai <Haiqing.Bai@windriver.com> +--- + kexec/arch/arm/crashdump-arm.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +diff --git a/kexec/arch/arm/crashdump-arm.c b/kexec/arch/arm/crashdump-arm.c +index daa4788..3f72b38 100644 +--- a/kexec/arch/arm/crashdump-arm.c ++++ b/kexec/arch/arm/crashdump-arm.c +@@ -240,6 +240,7 @@ int load_crashdump_segments(struct kexec_info *info, char *mod_cmdline) + void *buf; + int err; + int last_ranges; ++ unsigned short align_bit_shift = 20; + + /* + * First fetch all the memory (RAM) ranges that we are going to pass to +@@ -281,6 +282,7 @@ int load_crashdump_segments(struct kexec_info *info, char *mod_cmdline) + + /* for support LPAE enabled kernel*/ + elf_info.class = ELFCLASS64; ++ align_bit_shift = 21; + + err = crash_create_elf64_headers(info, &elf_info, + usablemem_rgns.ranges, +@@ -302,8 +304,9 @@ int load_crashdump_segments(struct kexec_info *info, char *mod_cmdline) + * 1MB) so that available memory passed in kernel command line will be + * aligned to 1MB. This is because kernel create_mapping() wants memory + * regions to be aligned to SECTION_SIZE. ++ * The SECTION_SIZE of LPAE kernel is '1UL << 21' defined in pgtable-3level.h + */ +- elfcorehdr = add_buffer_phys_virt(info, buf, bufsz, bufsz, 1 << 20, ++ elfcorehdr = add_buffer_phys_virt(info, buf, bufsz, bufsz, 1 << align_bit_shift, + crash_kernel_mem.start, + crash_kernel_mem.end, -1, 0); + |