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| author | Scott Wood <scottwood@freescale.com> | 2011-06-14 18:34:41 -0500 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-07-12 13:16:37 +0300 |
| commit | a4cd8b23ac5786943202c0174c717956947db43c (patch) | |
| tree | 46e1dc4646d6c2a27fc83944e24aad1c1fafb292 /arch/powerpc/kvm/booke.c | |
| parent | 9973d54eeafcd1c3a2e89f0f59280c4c1e03e73b (diff) | |
| download | talos-op-linux-a4cd8b23ac5786943202c0174c717956947db43c.tar.gz talos-op-linux-a4cd8b23ac5786943202c0174c717956947db43c.zip | |
KVM: PPC: e500: enable magic page
This is a shared page used for paravirtualization. It is always present
in the guest kernel's effective address space at the address indicated
by the hypercall that enables it.
The physical address specified by the hypercall is not used, as
e500 does not have real mode.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kvm/booke.c')
| -rw-r--r-- | arch/powerpc/kvm/booke.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index 0ecbecb2f7cc..4538956daecf 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -472,6 +472,17 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu, gpa_t gpaddr; gfn_t gfn; +#ifdef CONFIG_KVM_E500 + if (!(vcpu->arch.shared->msr & MSR_PR) && + (eaddr & PAGE_MASK) == vcpu->arch.magic_page_ea) { + kvmppc_map_magic(vcpu); + kvmppc_account_exit(vcpu, DTLB_VIRT_MISS_EXITS); + r = RESUME_GUEST; + + break; + } +#endif + /* Check the guest TLB. */ gtlb_index = kvmppc_mmu_dtlb_index(vcpu, eaddr); if (gtlb_index < 0) { |
