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KVM: Add config to support ple or cpu relax optimzation

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Suggested-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> # on s390x
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Raghavendra K T 2012-07-18 19:07:32 +05:30 committed by Avi Kivity
parent 93b6547e22
commit f2a7434731
3 changed files with 5 additions and 0 deletions
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1
arch/s390/kvm/Kconfig
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@ -21,6 +21,7 @@ config KVM
depends on HAVE_KVM && EXPERIMENTAL
select PREEMPT_NOTIFIERS
select ANON_INODES
select HAVE_KVM_CPU_RELAX_INTERCEPT
---help---
Support hosting paravirtualized guest machines using the SIE
virtualization capability on the mainframe. This should work

1
arch/x86/kvm/Kconfig
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@ -37,6 +37,7 @@ config KVM
select TASK_DELAY_ACCT
select PERF_EVENTS
select HAVE_KVM_MSI
select HAVE_KVM_CPU_RELAX_INTERCEPT
---help---
Support hosting fully virtualized guest machines using hardware
virtualization extensions. You will need a fairly recent

3
virt/kvm/Kconfig
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@ -21,3 +21,6 @@ config KVM_ASYNC_PF
config HAVE_KVM_MSI
bool
config HAVE_KVM_CPU_RELAX_INTERCEPT
bool