[PATCH 1/7] KVM: PPC: move tsr update in a separate function

Alexander Graf
2013-03-22T14:25:57Z

From: Bharat Bhushan <r65777@freescale.com>

This is done so that same function can be called from SREGS and
ONE_REG interface (follow up patch).

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
arch/powerpc/kvm/booke.c | 24 ++++++++++++++----------
1 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index eb88fa6..f2fd47d 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -1148,6 +1148,18 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
return r;
}

+static void kvmppc_set_tsr(struct kvm_vcpu *vcpu, u32 new_tsr)
+{
+ u32 old_tsr = vcpu->arch.tsr;
+
+ vcpu->arch.tsr = new_tsr;
+
+ if ((old_tsr ^ vcpu->arch.tsr) & (TSR_ENW | TSR_WIS))
+ arm_next_watchdog(vcpu);
+
+ update_timer_ints(vcpu);
+}
+
/* Initial guest state: 16MB mapping 0 -> 0, PC = 0, MSR = 0, R1 = 16MB */
int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
{
@@ -1287,16 +1299,8 @@ static int set_sregs_base(struct kvm_vcpu *vcpu,
kvmppc_emulate_dec(vcpu);
}

- if (sregs->u.e.update_special & KVM_SREGS_E_UPDATE_TSR) {
- u32 old_tsr = vcpu->arch.tsr;
-
- vcpu->arch.tsr = sregs->u.e.tsr;
-
- if ((old_tsr ^ vcpu->arch.tsr) & (TSR_ENW | TSR_WIS))
- arm_next_watchdog(vcpu);
-
- update_timer_ints(vcpu);
- }
+ if (sregs->u.e.update_special & KVM_SREGS_E_UPDATE_TSR)
+ kvmppc_set_tsr(vcpu, sregs->u.e.tsr);

return 0;
}
--
1.6.0.2