KVM: ppc: save and restore guest mappings on context switch

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Store shadow TLB entries in memory, but only use it on host context switch
(instead of every guest entry). This improves performance for most workloads on
440 by reducing the guest TLB miss rate.

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

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Hollis Blanchard 2008-12-02 15:51:56 -06:00 • committed by Avi Kivity

parent 7924bd4109

commit c5fbdffbda

3 changed files with 66 additions and 5 deletions

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6

arch/powerpc/include/asm/kvm_44x.h

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7

arch/powerpc/kvm/44x.c

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58

arch/powerpc/kvm/44x_tlb.c

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