From a73a9599e03eef1324d5aeecaebc1b339d2e1664 Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Thu, 29 Jul 2010 14:47:47 +0200 Subject: 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 Signed-off-by: Avi Kivity --- arch/powerpc/kvm/booke.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'arch/powerpc/kvm/booke.c') diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index 793df28b628d..b2c8c423c4d5 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -495,10 +495,10 @@ 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; @@ -521,10 +521,10 @@ 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; -- cgit v1.2.1