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KVM: x86: Add ioctl for KVM_KVMCLOCK_CTRL

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Now that we have a flag that will tell the guest it was suspended, create an
interface for that communication using a KVM ioctl.

Signed-off-by: Eric B Munson <emunson@mgebm.net>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Eric B Munson
2012-03-10 14:37:27 -05:00
committed by Avi Kivity
parent 3b5d56b931
commit 1c0b28c2a4
4 changed files with 49 additions and 0 deletions
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include/linux/kvm.h
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@@ -589,6 +589,7 @@ struct kvm_ppc_pvinfo {
#define KVM_CAP_S390_UCONTROL 73
#define KVM_CAP_SYNC_REGS 74
#define KVM_CAP_PCI_2_3 75
#define KVM_CAP_KVMCLOCK_CTRL 76
#ifdef KVM_CAP_IRQ_ROUTING
@@ -859,6 +860,8 @@ struct kvm_s390_ucas_mapping {
/* Available with KVM_CAP_ONE_REG */
#define KVM_GET_ONE_REG _IOW(KVMIO, 0xab, struct kvm_one_reg)
#define KVM_SET_ONE_REG _IOW(KVMIO, 0xac, struct kvm_one_reg)
/* VM is being stopped by host */
#define KVM_KVMCLOCK_CTRL _IO(KVMIO, 0xad)
#define KVM_DEV_ASSIGN_ENABLE_IOMMU (1 << 0)
#define KVM_DEV_ASSIGN_PCI_2_3 (1 << 1)