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KVM: s390: allow sie enablement for multi-threaded programs

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Improve the code to upgrade the standard 2K page tables to 4K page tables
with PGSTEs to allow the operation to happen when the program is already
multi-threaded.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Martin Schwidefsky
2013-07-26 15:04:02 +02:00
committed by Paolo Bonzini
parent 663f4c61b8
commit 3eabaee998
4 changed files with 129 additions and 84 deletions
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2
arch/s390/include/asm/mmu.h
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@@ -12,8 +12,6 @@ typedef struct {
unsigned long asce_bits;
unsigned long asce_limit;
unsigned long vdso_base;
/* Cloned contexts will be created with extended page tables. */
unsigned int alloc_pgste:1;
/* The mmu context has extended page tables. */
unsigned int has_pgste:1;
} mm_context_t;