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| author | Scott Wood <scottwood@freescale.com> | 2011-06-14 23:34:34 (GMT) |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-07-12 10:16:33 (GMT) |
| commit | 6fc4d1eb911cced6bc103f2b36497397e99e8c43 (patch) | |
| tree | d0dc20dd4412525d05e2876e27f06918181d64b2 /arch/powerpc/kvm/e500_tlb.c | |
| parent | 4cd35f675ba41a99a477e28a6add4a66833325f2 (diff) | |
| download | linux-6fc4d1eb911cced6bc103f2b36497397e99e8c43.tar.xz | |
KVM: PPC: e500: Disable preloading TLB1 in tlb_load().
Since TLB1 loading doesn't check the shadow TLB before allocating another
entry, you can get duplicates.
Once shadow PIDs are enabled in a later patch, we won't need to
invalidate the TLB on every switch, so this optimization won't be
needed anyway.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kvm/e500_tlb.c')
| -rw-r--r-- | arch/powerpc/kvm/e500_tlb.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/arch/powerpc/kvm/e500_tlb.c b/arch/powerpc/kvm/e500_tlb.c index b18fe35..e0ab216 100644 --- a/arch/powerpc/kvm/e500_tlb.c +++ b/arch/powerpc/kvm/e500_tlb.c @@ -144,24 +144,6 @@ static inline void write_host_tlbe(struct kvmppc_vcpu_e500 *vcpu_e500, void kvmppc_e500_tlb_load(struct kvm_vcpu *vcpu, int cpu) { - struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu); - int i; - unsigned register mas0; - - /* Load all valid TLB1 entries to reduce guest tlb miss fault */ - local_irq_disable(); - mas0 = mfspr(SPRN_MAS0); - for (i = 0; i < tlb1_max_shadow_size(); i++) { - struct tlbe *stlbe = &vcpu_e500->shadow_tlb[1][i]; - - if (get_tlb_v(stlbe)) { - mtspr(SPRN_MAS0, MAS0_TLBSEL(1) - | MAS0_ESEL(to_htlb1_esel(i))); - __write_host_tlbe(stlbe); - } - } - mtspr(SPRN_MAS0, mas0); - local_irq_enable(); } void kvmppc_e500_tlb_put(struct kvm_vcpu *vcpu) |