Check for crashkernel reservation in PPC64.
Check whether memory for crashkernel is reserved or not by looking for the
existence of /proc/device-tree/chosen/linux,crashkernel-base file. This file
is created only when crashkernel parameter is passed to the kernel.
Signed-off-by: Mohan Kumar M <[EMAIL PROTECTED]>
---
kexec/arch/ppc64/kexec-elf-ppc64.c | 12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/kexec/arch/ppc64/kexec-elf-ppc64.c
b/kexec/arch/ppc64/kexec-elf-ppc64.c
index 944df79..2ad832e 100644
--- a/kexec/arch/ppc64/kexec-elf-ppc64.c
+++ b/kexec/arch/ppc64/kexec-elf-ppc64.c
@@ -69,6 +69,18 @@ int elf_ppc64_probe(const char *buf, off
return result;
}
+int is_crashkernel_mem_reserved()
+{
+ int fd;
+
+ fd = open("/proc/device-tree/chosen/linux,crashkernel-base", O_RDONLY);
+ if (fd < 0)
+ return 0;
+ close(fd);
+ return 1;
+}
+
+
int elf_ppc64_load(int argc, char **argv, const char *buf, off_t len,
struct kexec_info *info)
{
--
1.4.2
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