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linux-next/arch/s390/kvm
Christian Borntraeger 1526bf9ccf KVM: s390: add capability indicating COW support
Currently qemu/kvm on s390 uses a guest mapping that does not
allow the guest backing page table to be write-protected to
support older systems. On those older systems a host write
protection fault will be delivered to the guest.

Newer systems allow to write-protect the guest backing memory
and let the fault be delivered to the host, thus allowing COW.

Use a capability bit to tell qemu if that is possible.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2012-05-17 21:06:01 -03:00
..
diag.c KVM: s390: use kvm_vcpu_on_spin for diag 0x44 2012-04-30 21:38:31 -03:00
gaccess.h [S390] Use gmap translation for accessing guest memory 2011-07-24 10:48:21 +02:00
intercept.c KVM: s390: Handle sckpf instruction 2012-04-30 21:55:52 -03:00
interrupt.c Merge branch 'kvm-updates/3.4' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2012-03-28 14:35:31 -07:00
Kconfig KVM: s390: add parameter for KVM_CREATE_VM 2012-03-05 14:52:18 +02:00
kvm-s390.c KVM: s390: add capability indicating COW support 2012-05-17 21:06:01 -03:00
kvm-s390.h KVM: s390: Handle sckpf instruction 2012-04-30 21:55:52 -03:00
Makefile [S390] move sie code to entry.S 2011-07-24 10:48:21 +02:00
priv.c KVM: s390: Handle sckpf instruction 2012-04-30 21:55:52 -03:00
sigp.c KVM: s390: add stop_on_stop flag when doing stop and store 2012-03-08 14:10:17 +02:00