leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

s390/mm: add guest ASCE TLB flush optimization

Browse Source 
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky
2016-07-26 16:00:22 +02:00
parent 118bd31bea
commit 28c807e513
4 changed files with 70 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/s390/include/asm/tlbflush.h
View File

@@ -23,6 +23,8 @@ static inline void __tlb_flush_idte(unsigned long asce)
unsigned long opt;
opt = IDTE_PTOA;
if (MACHINE_HAS_TLB_GUEST)
opt |= IDTE_GUEST_ASCE;
/* Global TLB flush for the mm */
asm volatile(
" .insn rrf,0xb98e0000,0,%0,%1,0"