diff options
| author | Hollis Blanchard <hollisb@us.ibm.com> | 2008-07-25 13:54:52 -0500 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-10-15 10:15:16 +0200 |
| commit | 83aae4a8098eb8a40a2e9dab3714354182143b4f (patch) | |
| tree | 872381c8aa610e3c1053008e967728f121fa55cb /arch/powerpc/include/asm/kvm_ppc.h | |
| parent | 20754c2495a791b5b429c0da63394c86ade978e7 (diff) | |
| download | lwn-83aae4a8098eb8a40a2e9dab3714354182143b4f.tar.gz lwn-83aae4a8098eb8a40a2e9dab3714354182143b4f.zip | |
KVM: ppc: Write only modified shadow entries into the TLB on exit
Track which TLB entries need to be written, instead of overwriting everything
below the high water mark. Typically only a single guest TLB entry will be
modified in a single exit.
Guest boot time performance improvement: about 15%.
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'arch/powerpc/include/asm/kvm_ppc.h')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_ppc.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h index a8b068792260..8e7e42959903 100644 --- a/arch/powerpc/include/asm/kvm_ppc.h +++ b/arch/powerpc/include/asm/kvm_ppc.h @@ -65,6 +65,9 @@ extern void kvmppc_mmu_invalidate(struct kvm_vcpu *vcpu, gva_t eaddr, gva_t eend, u32 asid); extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode); +/* XXX Book E specific */ +extern void kvmppc_tlbe_set_modified(struct kvm_vcpu *vcpu, unsigned int i); + extern void kvmppc_check_and_deliver_interrupts(struct kvm_vcpu *vcpu); static inline void kvmppc_queue_exception(struct kvm_vcpu *vcpu, int exception) |