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authorMichael Holzheu <holzheu@linux.vnet.ibm.com>2008-08-01 16:39:10 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2008-08-01 16:39:30 +0200
commit3a95e8eb34f595a0144adb6e5513d456319bd8a5 (patch)
treede89a06fbfcbe6fdcbdb168183f00292febb9086
parent4abb08c24b5fa7b6ad0807c07077f0f216f6788b (diff)
[S390] ipl: Reboot from alternate device does not work when booting from file
During startup we check if diag308 works using diag 308 subcode 6, which stores the actual ipl information. This fails with rc = 0x102, if the system has been ipled from the HMC using load from CD or load from file. In the case of rc = 0x102 we have to assume that diag 308 is working, since it still can be used to ipl from an alternative device. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
-rw-r--r--arch/s390/kernel/ipl.c5
-rw-r--r--include/asm-s390/ipl.h3
2 files changed, 6 insertions, 2 deletions
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 54b2779b5e2f..2dcf590faba6 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -1705,7 +1705,10 @@ void __init setup_ipl(void)
void __init ipl_update_parameters(void)
{
- if (diag308(DIAG308_STORE, &ipl_block) == DIAG308_RC_OK)
+ int rc;
+
+ rc = diag308(DIAG308_STORE, &ipl_block);
+ if ((rc == DIAG308_RC_OK) || (rc == DIAG308_RC_NOCONFIG))
diag308_set_works = 1;
}
diff --git a/include/asm-s390/ipl.h b/include/asm-s390/ipl.h
index eaca6dff5405..1171e6d144a3 100644
--- a/include/asm-s390/ipl.h
+++ b/include/asm-s390/ipl.h
@@ -159,7 +159,8 @@ enum diag308_vm_flags {
};
enum diag308_rc {
- DIAG308_RC_OK = 1,
+ DIAG308_RC_OK = 0x0001,
+ DIAG308_RC_NOCONFIG = 0x0102,
};
extern int diag308(unsigned long subcode, void *addr);

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