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[S390] kvm: Handle diagnose 0x10 (release pages)

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Linux on System z uses a ballooner based on diagnose 0x10. (aka as
collaborative memory management). This patch implements diagnose
0x10 on the guest address space.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Christian Borntraeger
2011-10-30 15:17:03 +01:00
committed by Martin Schwidefsky
parent 499069e1a4
commit 388186bc92
5 changed files with 82 additions and 2 deletions
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arch/s390/include/asm/pgtable.h
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@@ -698,6 +698,7 @@ int gmap_map_segment(struct gmap *gmap, unsigned long from,
int gmap_unmap_segment(struct gmap *gmap, unsigned long to, unsigned long len);
unsigned long __gmap_fault(unsigned long address, struct gmap *);
unsigned long gmap_fault(unsigned long address, struct gmap *);
void gmap_discard(unsigned long from, unsigned long to, struct gmap *);
/*
* Certain architectures need to do special things when PTEs