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s390/mem_detect: introduce SCLP storage info

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SCLP storage info allows to detect continuous and non-continuous online
memory under LPAR, z/VM and KVM, when standby memory is defined.

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
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 18:42:37 +02:00
committed by Martin Schwidefsky
parent 251b72a440
commit fddbaa5c42
6 changed files with 74 additions and 10 deletions
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3
arch/s390/include/asm/mem_detect.h
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@@ -6,6 +6,7 @@
enum mem_info_source {
MEM_DETECT_NONE = 0,
MEM_DETECT_SCLP_STOR_INFO,
MEM_DETECT_TPROT_LOOP
};
@@ -32,6 +33,8 @@ struct mem_detect_info {
};
extern struct mem_detect_info mem_detect;
void add_mem_detect_block(u64 start, u64 end);
static inline int __get_mem_detect_block(u32 n, unsigned long *start,
unsigned long *end)
{

1
arch/s390/include/asm/sclp.h
View File

@@ -106,6 +106,7 @@ struct zpci_report_error_header {
} __packed;
int sclp_early_read_info(void);
int sclp_early_read_storage_info(void);
int sclp_early_get_core_info(struct sclp_core_info *info);
void sclp_early_get_ipl_info(struct sclp_ipl_info *info);
void sclp_early_detect(void);