Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull more KVM updates from Paolo Bonzini:

 - PPC secure guest support

 - small x86 cleanup

 - fix for an x86-specific out-of-bounds write on a ioctl (not guest
   triggerable, data not attacker-controlled)

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  kvm: vmx: Stop wasting a page for guest_msrs
  KVM: x86: fix out-of-bounds write in KVM_GET_EMULATED_CPUID (CVE-2019-19332)
  Documentation: kvm: Fix mention to number of ioctls classes
  powerpc: Ultravisor: Add PPC_UV config option
  KVM: PPC: Book3S HV: Support reset of secure guest
  KVM: PPC: Book3S HV: Handle memory plug/unplug to secure VM
  KVM: PPC: Book3S HV: Radix changes for secure guest
  KVM: PPC: Book3S HV: Shared pages support for secure guests
  KVM: PPC: Book3S HV: Support for running secure guests
  mm: ksm: Export ksm_madvise()
  KVM x86: Move kvm cpuid support out of svm

1 files changed, 12 insertions, 0 deletions

diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 9e085e931d74..416fb3d2a1d0 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -31,6 +31,8 @@
 #include <asm/hvcall.h>
 #include <asm/plpar_wrappers.h>
 #endif
+#include <asm/ultravisor.h>
+#include <asm/kvm_host.h>
 
 #include "timing.h"
 #include "irq.h"
@@ -2413,6 +2415,16 @@ long kvm_arch_vm_ioctl(struct file *filp,
 			r = -EFAULT;
 		break;
 	}
+	case KVM_PPC_SVM_OFF: {
+		struct kvm *kvm = filp->private_data;
+
+		r = 0;
+		if (!kvm->arch.kvm_ops->svm_off)
+			goto out;
+
+		r = kvm->arch.kvm_ops->svm_off(kvm);
+		break;
+	}
 	default: {
 		struct kvm *kvm = filp->private_data;
 		r = kvm->arch.kvm_ops->arch_vm_ioctl(filp, ioctl, arg);