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Diffstat (limited to 'arch/s390/kernel/machine_kexec_file.c')
-rw-r--r--arch/s390/kernel/machine_kexec_file.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/s390/kernel/machine_kexec_file.c b/arch/s390/kernel/machine_kexec_file.c
index 08409d61aeca..0e2a5a7a1b7c 100644
--- a/arch/s390/kernel/machine_kexec_file.c
+++ b/arch/s390/kernel/machine_kexec_file.c
@@ -17,7 +17,8 @@ const struct kexec_file_ops * const kexec_file_loaders[] = {
NULL,
};
-static int kexec_file_update_purgatory(struct kimage *image)
+static int kexec_file_update_purgatory(struct kimage *image,
+ struct s390_load_data *data)
{
u64 entry, type;
int ret;
@@ -76,7 +77,7 @@ static int kexec_file_add_purgatory(struct kimage *image,
if (ret)
return ret;
- ret = kexec_file_update_purgatory(image);
+ ret = kexec_file_update_purgatory(image, data);
return ret;
}
@@ -136,6 +137,13 @@ void *kexec_file_add_components(struct kimage *image,
if (ret)
return ERR_PTR(ret);
+ if (data.kernel_mem == 0) {
+ unsigned long restart_psw = 0x0008000080000000UL;
+ restart_psw += image->start;
+ memcpy(data.kernel_buf, &restart_psw, sizeof(restart_psw));
+ image->start = 0;
+ }
+
return NULL;
}