Commit 89329c0b authored by Suraj Jitindar Singh's avatar Suraj Jitindar Singh Committed by Michael Ellerman

KVM: PPC: Book3S HV: Clear partition table entry on vm teardown

When destroying a VM we return the LPID to the pool, however we never
zero the partition table entry. This is instead done when we reallocate
the LPID.

Zero the partition table entry on VM teardown before returning the LPID
to the pool. This means if we were running as a nested hypervisor the
real hypervisor could use this to determine when it can free resources.
Reviewed-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: default avatarSuraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: default avatarPaul Mackerras <paulus@ozlabs.org>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent fd0944ba
...@@ -4509,13 +4509,19 @@ static void kvmppc_core_destroy_vm_hv(struct kvm *kvm) ...@@ -4509,13 +4509,19 @@ static void kvmppc_core_destroy_vm_hv(struct kvm *kvm)
kvmppc_free_vcores(kvm); kvmppc_free_vcores(kvm);
kvmppc_free_lpid(kvm->arch.lpid);
if (kvm_is_radix(kvm)) if (kvm_is_radix(kvm))
kvmppc_free_radix(kvm); kvmppc_free_radix(kvm);
else else
kvmppc_free_hpt(&kvm->arch.hpt); kvmppc_free_hpt(&kvm->arch.hpt);
/* Perform global invalidation and return lpid to the pool */
if (cpu_has_feature(CPU_FTR_ARCH_300)) {
kvm->arch.process_table = 0;
kvmppc_setup_partition_table(kvm);
}
kvmppc_free_lpid(kvm->arch.lpid);
kvmppc_free_pimap(kvm); kvmppc_free_pimap(kvm);
} }
......
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