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Commit a56cf347 authored by Alexander Graf's avatar Alexander Graf Committed by Avi Kivity
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KVM: PPC: Load VCPU for register fetching 



When trying to read or store vcpu register data, we should also make
sure the vcpu is actually loaded, so we're 100% sure we get the correct
values.

Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent c2453693

arch/powerpc/kvm/book3s.c

+8 −0
Original line number Diff line number Diff line
@@ -956,6 +956,8 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) 
{

	int i;



	vcpu_load(vcpu);



	regs->pc = vcpu->arch.pc;

	regs->cr = kvmppc_get_cr(vcpu);

	regs->ctr = vcpu->arch.ctr;
@@ -976,6 +978,8 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) 
	for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)

		regs->gpr[i] = kvmppc_get_gpr(vcpu, i);



	vcpu_put(vcpu);



	return 0;

}
@@ -983,6 +987,8 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) 
{

	int i;



	vcpu_load(vcpu);



	vcpu->arch.pc = regs->pc;

	kvmppc_set_cr(vcpu, regs->cr);

	vcpu->arch.ctr = regs->ctr;
@@ -1002,6 +1008,8 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) 
	for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)

		kvmppc_set_gpr(vcpu, i, regs->gpr[i]);



	vcpu_put(vcpu);



	return 0;

}