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authorDominik Dingel <dingel@linux.vnet.ibm.com>2013-10-07 17:11:48 +0200
committerChristian Borntraeger <borntraeger@de.ibm.com>2014-01-30 13:11:02 +0100
commit3c038e6be0e299d4d3762d0a9a29f02de6e04991 (patch)
tree06f0c3a8debccb32b2388d57990aba5f4e363ea3 /arch/s390/kvm/Kconfig
parent9f2ceda49c6b8827c795731c204f6c2587886e2c (diff)
downloadlinux-linaro-stable-3c038e6be0e299d4d3762d0a9a29f02de6e04991.tar.gz
KVM: async_pf: Async page fault support on s390
This patch enables async page faults for s390 kvm guests. It provides the userspace API to enable and disable_wait this feature. The disable_wait will enforce that the feature is off by waiting on it. Also it includes the diagnose code, called by the guest to enable async page faults. The async page faults will use an already existing guest interface for this purpose, as described in "CP Programming Services (SC24-6084)". Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/Kconfig')
-rw-r--r--arch/s390/kvm/Kconfig2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/kvm/Kconfig b/arch/s390/kvm/Kconfig
index 70b46eacf8e1..c8bacbcd2e5b 100644
--- a/arch/s390/kvm/Kconfig
+++ b/arch/s390/kvm/Kconfig
@@ -23,6 +23,8 @@ config KVM
select ANON_INODES
select HAVE_KVM_CPU_RELAX_INTERCEPT
select HAVE_KVM_EVENTFD
+ select KVM_ASYNC_PF
+ select KVM_ASYNC_PF_SYNC
---help---
Support hosting paravirtualized guest machines using the SIE
virtualization capability on the mainframe. This should work