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| author | Alexander Graf <agraf@suse.de> | 2010-07-29 14:47:47 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-10-24 10:50:45 +0200 |
| commit | a73a9599e03eef1324d5aeecaebc1b339d2e1664 (patch) | |
| tree | 0bdda99fbefc4fe38e1f5769556e32c8e11834f2 /arch/powerpc/kvm/book3s.c | |
| parent | de7906c36ca1e22a3e3600e95c6a4e2c1e4e2e9c (diff) | |
| download | blackbird-op-linux-a73a9599e03eef1324d5aeecaebc1b339d2e1664.tar.gz blackbird-op-linux-a73a9599e03eef1324d5aeecaebc1b339d2e1664.zip | |
KVM: PPC: Convert SPRG[0-4] to shared page
When in kernel mode there are 4 additional registers available that are
simple data storage. Instead of exiting to the hypervisor to read and
write those, we can just share them with the guest using the page.
This patch converts all users of the current field to the shared page.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/powerpc/kvm/book3s.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index afa0dd4a27f4..cfd7fe5c3a62 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -1062,10 +1062,10 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) regs->srr0 = vcpu->arch.shared->srr0; regs->srr1 = vcpu->arch.shared->srr1; regs->pid = vcpu->arch.pid; - regs->sprg0 = vcpu->arch.sprg0; - regs->sprg1 = vcpu->arch.sprg1; - regs->sprg2 = vcpu->arch.sprg2; - regs->sprg3 = vcpu->arch.sprg3; + regs->sprg0 = vcpu->arch.shared->sprg0; + regs->sprg1 = vcpu->arch.shared->sprg1; + regs->sprg2 = vcpu->arch.shared->sprg2; + regs->sprg3 = vcpu->arch.shared->sprg3; regs->sprg5 = vcpu->arch.sprg4; regs->sprg6 = vcpu->arch.sprg5; regs->sprg7 = vcpu->arch.sprg6; @@ -1088,10 +1088,10 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) kvmppc_set_msr(vcpu, regs->msr); vcpu->arch.shared->srr0 = regs->srr0; vcpu->arch.shared->srr1 = regs->srr1; - vcpu->arch.sprg0 = regs->sprg0; - vcpu->arch.sprg1 = regs->sprg1; - vcpu->arch.sprg2 = regs->sprg2; - vcpu->arch.sprg3 = regs->sprg3; + vcpu->arch.shared->sprg0 = regs->sprg0; + vcpu->arch.shared->sprg1 = regs->sprg1; + vcpu->arch.shared->sprg2 = regs->sprg2; + vcpu->arch.shared->sprg3 = regs->sprg3; vcpu->arch.sprg5 = regs->sprg4; vcpu->arch.sprg6 = regs->sprg5; vcpu->arch.sprg7 = regs->sprg6; |
