Commit 2b347a38 authored by Paolo Bonzini's avatar Paolo Bonzini
Browse files

KVM: SEV: initialize regions_list of a mirror VM 



This was broken before the introduction of KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM,
but technically harmless because the region list was unused for a mirror
VM.  However, it is untidy and it now causes a NULL pointer access when
attempting to move the encryption context of a mirror VM.

Fixes: 54526d1f ("KVM: x86: Support KVM VMs sharing SEV context")
Message-Id: <20211123005036.2954379-7-pbonzini@redhat.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 501b580c

arch/x86/kvm/svm/sev.c

+1 −0
Original line number Diff line number Diff line
@@ -2007,6 +2007,7 @@ int svm_vm_copy_asid_from(struct kvm *kvm, unsigned int source_fd) 
	mirror_sev->fd = source_sev.fd;

	mirror_sev->es_active = source_sev.es_active;

	mirror_sev->handle = source_sev.handle;

	INIT_LIST_HEAD(&mirror_sev->regions_list);

	/*

	 * Do not copy ap_jump_table. Since the mirror does not share the same

	 * KVM contexts as the original, and they may have different