xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

s390/mm,kvm: use nodat PGSTE tag to optimize TLB flushing

Browse Source 
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky
2016-07-26 17:02:31 +02:00
parent 28c807e513
commit cd774b9076
2 changed files with 31 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

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

@@ -376,6 +376,7 @@ static inline int is_module_addr(void *addr)
/* Guest Page State used for virtualization */
#define _PGSTE_GPS_ZERO 0x0000000080000000UL
#define _PGSTE_GPS_NODAT 0x0000000040000000UL
#define _PGSTE_GPS_USAGE_MASK 0x0000000003000000UL
#define _PGSTE_GPS_USAGE_STABLE 0x0000000000000000UL
#define _PGSTE_GPS_USAGE_UNUSED 0x0000000001000000UL