It does:
1. Add pmem region into PT_LOADs of vmcore
2. Mark pmem region's p_flags as PF_DEV
CC: Baoquan He <bhe@xxxxxxxxxx>
CC: Vivek Goyal <vgoyal@xxxxxxxxxx>
CC: Dave Young <dyoung@xxxxxxxxxx>
Signed-off-by: Li Zhijian <lizhijian@xxxxxxxxxxx>
---
kexec/crashdump-elf.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/kexec/crashdump-elf.c b/kexec/crashdump-elf.c
index b8bb686a17ca..ab257e825187 100644
--- a/kexec/crashdump-elf.c
+++ b/kexec/crashdump-elf.c
@@ -25,6 +25,8 @@ do { \
} while(0)
#endif
+#define PF_DEV (1 << 4)
+
/* Prepares the crash memory headers and stores in supplied buffer. */
int FUNC(struct kexec_info *info,
struct crash_elf_info *elf_info,
@@ -199,7 +201,7 @@ int FUNC(struct kexec_info *info,
* A seprate program header for Backup Region*/
for (i = 0; i < ranges; i++, range++) {
unsigned long long mstart, mend;
- if (range->type != RANGE_RAM)
+ if (range->type != RANGE_RAM && range->type != RANGE_PMEM)
continue;
mstart = range->start;
mend = range->end;
@@ -209,6 +211,8 @@ int FUNC(struct kexec_info *info,
bufp += sizeof(PHDR);
phdr->p_type = PT_LOAD;
phdr->p_flags = PF_R|PF_W|PF_X;
+ if (range->type == RANGE_PMEM)
+ phdr->p_flags |= PF_DEV;
phdr->p_offset = mstart;
if (mstart == info->backup_src_start
--
2.29.2
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