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authorSean Christopherson <sean.j.christopherson@intel.com>2019-12-18 13:54:48 -0800
committerBen Hutchings <ben@decadent.org.uk>2020-05-22 21:19:34 +0100
commit22725fee3d79718feccb5eee32beeb40583cc086 (patch)
treeaa2ab876d0c12cc8b265b88b82448f2e3374a848
parent9c98c4926b6d5dbabfa3ee9df1083c88709aca8b (diff)
downloadlinux-stable-22725fee3d79718feccb5eee32beeb40583cc086.tar.gz
KVM: x86: Free wbinvd_dirty_mask if vCPU creation fails
commit 16be9ddea268ad841457a59109963fff8c9de38d upstream. Free the vCPU's wbinvd_dirty_mask if vCPU creation fails after kvm_arch_vcpu_init(), e.g. when installing the vCPU's file descriptor. Do the freeing by calling kvm_arch_vcpu_free() instead of open coding the freeing. This adds a likely superfluous, but ultimately harmless, call to kvmclock_reset(), which only clears vcpu->arch.pv_time_enabled. Using kvm_arch_vcpu_free() allows for additional cleanup in the future. Fixes: f5f48ee15c2ee ("KVM: VMX: Execute WBINVD to keep data consistency with assigned devices") Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> [bwh: Backported to 3.16: Also delete the preceding fx_free(), since kvm_arch_vcpu_free() calls it.] Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
-rw-r--r--arch/x86/kvm/x86.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c73ff06cbd716..afa6d9227cdaa 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7087,8 +7087,7 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
kvm_mmu_unload(vcpu);
vcpu_put(vcpu);
- fx_free(vcpu);
- kvm_x86_ops->vcpu_free(vcpu);
+ kvm_arch_vcpu_free(vcpu);
}
void kvm_vcpu_reset(struct kvm_vcpu *vcpu)