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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2014-06-05 17:38:05 +0530 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-07-28 15:22:10 +0200 |
| commit | 06da28e76b87331ebccdb6d486cfd94835b8be5e (patch) | |
| tree | 151e895b815cdb3f5b8039f41073052a615f9cd4 /arch/powerpc/kvm/book3s_pr.c | |
| parent | 8f42ab2749d00ea15157ab896cfbed73a247b3e1 (diff) | |
| download | linux-rpi3-06da28e76b87331ebccdb6d486cfd94835b8be5e.tar.gz linux-rpi3-06da28e76b87331ebccdb6d486cfd94835b8be5e.tar.bz2 linux-rpi3-06da28e76b87331ebccdb6d486cfd94835b8be5e.zip | |
KVM: PPC: BOOK3S: PR: Emulate instruction counter
Writing to IC is not allowed in the privileged mode.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kvm/book3s_pr.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s_pr.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index d2deb9e45095..3da412e16b3a 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -126,6 +126,8 @@ void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu, */ vcpu->arch.entry_tb = get_tb(); vcpu->arch.entry_vtb = get_vtb(); + if (cpu_has_feature(CPU_FTR_ARCH_207S)) + vcpu->arch.entry_ic = mfspr(SPRN_IC); svcpu->in_use = true; } @@ -178,6 +180,8 @@ void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu, vcpu->arch.purr += get_tb() - vcpu->arch.entry_tb; vcpu->arch.spurr += get_tb() - vcpu->arch.entry_tb; vcpu->arch.vtb += get_vtb() - vcpu->arch.entry_vtb; + if (cpu_has_feature(CPU_FTR_ARCH_207S)) + vcpu->arch.ic += mfspr(SPRN_IC) - vcpu->arch.entry_ic; svcpu->in_use = false; out: |