diff options
| author | Jordan Niethe <jniethe5@gmail.com> | 2023-12-01 18:56:06 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-12-07 23:33:07 +1100 |
| commit | 7d370e1812b9a5f5cc68aaa5991bf7d31d8ff52c (patch) | |
| tree | e5209e0d6ffd7095cf094da81c185ced82267368 /arch/powerpc/kvm | |
| parent | 98b1cc82c4affc16f5598d4fa14b1858671b2263 (diff) | |
KVM: PPC: Book3S HV nestedv2: Invalidate RPT before deleting a guest
An L0 must invalidate the L2's RPT during H_GUEST_DELETE if this has not
already been done. This is a slow operation that means H_GUEST_DELETE
must return H_BUSY multiple times before completing. Invalidating the
tables before deleting the guest so there is less work for the L0 to do.
Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231201132618.555031-2-vaibhav@linux.ibm.com
Diffstat (limited to 'arch/powerpc/kvm')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv.c | 6 | ||||
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv_nested.c | 2 |
2 files changed, 5 insertions, 3 deletions
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 1ed6ec140701..5543e8490cd9 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -5691,10 +5691,12 @@ static void kvmppc_core_destroy_vm_hv(struct kvm *kvm) kvmhv_set_ptbl_entry(kvm->arch.lpid, 0, 0); } - if (kvmhv_is_nestedv2()) + if (kvmhv_is_nestedv2()) { + kvmhv_flush_lpid(kvm->arch.lpid); plpar_guest_delete(0, kvm->arch.lpid); - else + } else { kvmppc_free_lpid(kvm->arch.lpid); + } kvmppc_free_pimap(kvm); } diff --git a/arch/powerpc/kvm/book3s_hv_nested.c b/arch/powerpc/kvm/book3s_hv_nested.c index 3b658b8696bc..5c375ec1a3c6 100644 --- a/arch/powerpc/kvm/book3s_hv_nested.c +++ b/arch/powerpc/kvm/book3s_hv_nested.c @@ -503,7 +503,7 @@ void kvmhv_nested_exit(void) } } -static void kvmhv_flush_lpid(u64 lpid) +void kvmhv_flush_lpid(u64 lpid) { long rc; |