From: Pingfan Liu <[email protected]>
Signed-off-by: Pingfan Liu <[email protected]>
Cc: Jiri Bohac <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Philipp Rudo <[email protected]>
Cc: Baoquan He <[email protected]>
Cc: Dave Young <[email protected]>
To: [email protected]
---
drivers/of/kexec.c | 14 ++++++++++++++
include/linux/kexec.h | 4 ++++
2 files changed, 18 insertions(+)
diff --git a/drivers/of/kexec.c b/drivers/of/kexec.c
index 68278340cecf..471b6cdf34ff 100644
--- a/drivers/of/kexec.c
+++ b/drivers/of/kexec.c
@@ -410,6 +410,20 @@ void *of_kexec_alloc_and_setup_fdt(const struct kimage
*image,
if (ret)
goto out;
}
+
+ ret = fdt_appendprop_u64(fdt, chosen_node,
+ "kdump,cma_pfn", kdump_cma_pfn);
+ if (ret)
+ goto out;
+ ret = fdt_appendprop_u64(fdt, chosen_node,
+ "kdump,cma_pg_cnt", kdump_cma_pg_cnt);
+ if (ret)
+ goto out;
+ ret = fdt_appendprop_u64(fdt, chosen_node,
+ "kdump,cma_pg_paddr", kdump_cma_pg_paddr);
+ if (ret)
+ goto out;
+
}
/* add bootargs */
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 95e19c814c93..bf2d8b9d8c07 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -408,6 +408,10 @@ bool kexec_load_permitted(int kexec_image_type);
/* flag to track if kexec reboot is in progress */
extern bool kexec_in_progress;
+extern u64 kdump_cma_pfn;
+extern u64 kdump_cma_pg_cnt;
+extern u64 kdump_cma_pg_paddr;
+
int crash_shrink_memory(unsigned long new_size);
ssize_t crash_get_memory_size(void);
void kdump_kernel_reuse_mem(void);
--
2.31.1
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