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zipl/stage3: correctly handle diag308 response code

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In case diag308 gives a response code 0x102 the stage3 loader can
safely assume that no secure IPL is required since no IPL report
block exists.

Suggested-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Philipp Rudo <prudo@linux.ibm.com>
Tested-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Stefan Haberland
2020-06-25 13:07:47 +02:00
committed by Jan Höppner
parent c367a6bb65
commit 943c5dc51d
2 changed files with 12 additions and 14 deletions
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include/boot/s390.h
+1
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@@ -286,6 +286,7 @@ enum diag308_subcode {
enum diag308_rc {
DIAG308_RC_OK = 0x0001,
DIAG308_RC_NO_CONF = 0x0102,
};
static __always_inline unsigned long diag308(unsigned long subcode, void *addr)