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s390/mem_detect: introduce z/VM specific diag260 call

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In the case when z/VM memory is defined with "define storage config"
command, SCLP storage info is not available. Utilize diag260 "storage
configuration" call, to get information about z/VM specific guest memory
definitions with potential memory holes.

Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Vasily Gorbik
2018-04-11 18:48:20 +02:00
committed by Martin Schwidefsky
parent fddbaa5c42
commit 6e98e64329
2 changed files with 53 additions and 0 deletions
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arch/s390/include/asm/mem_detect.h
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@@ -7,6 +7,7 @@
enum mem_info_source {
MEM_DETECT_NONE = 0,
MEM_DETECT_SCLP_STOR_INFO,
MEM_DETECT_DIAG260,
MEM_DETECT_TPROT_LOOP
};