From: Bharat Bhushan <[email protected]> As per specification the decrementer interrupt not happen when DEC is written with 0. Also when DEC is zero, no decrementer running. So we should not start hrtimer for decrementer when DEC = 0.
Signed-off-by: Bharat Bhushan <[email protected]> Signed-off-by: Alexander Graf <[email protected]> --- arch/powerpc/kvm/emulate.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c index 4337f99..b6df56d 100644 --- a/arch/powerpc/kvm/emulate.c +++ b/arch/powerpc/kvm/emulate.c @@ -77,7 +77,8 @@ static int kvmppc_dec_enabled(struct kvm_vcpu *vcpu) #else static int kvmppc_dec_enabled(struct kvm_vcpu *vcpu) { - return vcpu->arch.tcr & TCR_DIE; + /* On BOOKE, DEC = 0 is as good as decrementer not enabled */ + return (vcpu->arch.tcr & TCR_DIE) && vcpu->arch.dec; } #endif -- 1.6.0.2 -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
