On 15/11/2016 07:36, Bandan Das wrote: > > Change unimplemented msrs messages to use pr_debug. > If CONFIG_DYNAMIC_DEBUG is set, then these messages can be > enabled at run time or else -DDEBUG can be used at compile > time to enable them. These messages will still be printed if > ignore_msrs=1. > > Signed-off-by: Bandan Das <bsd@xxxxxxxxxx> Reviewed-by: Paolo Bonzini <pbonzini@xxxxxxxxxx> > --- > v2: > use kvm_debug_ratelimited for vcpu_debug_ratelimited > > This is a follow up to RFC posted by Dave at > https://patchwork.kernel.org/patch/9238227/ which uses pr_debug_ratelimited > when ignore_msrs is not set. > > arch/x86/kvm/mmu.c | 2 +- > arch/x86/kvm/x86.c | 5 +++-- > include/linux/kvm_host.h | 6 ++++++ > 3 files changed, 10 insertions(+), 3 deletions(-) > > diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c > index d9c7e98..1b3f241 100644 > --- a/arch/x86/kvm/mmu.c > +++ b/arch/x86/kvm/mmu.c > @@ -4958,7 +4958,7 @@ void kvm_mmu_invalidate_mmio_sptes(struct kvm *kvm, struct kvm_memslots *slots) > * zap all shadow pages. > */ > if (unlikely((slots->generation & MMIO_GEN_MASK) == 0)) { > - printk_ratelimited(KERN_DEBUG "kvm: zapping shadow pages for mmio generation wraparound\n"); > + kvm_debug_ratelimited("kvm: zapping shadow pages for mmio generation wraparound\n"); > kvm_mmu_invalidate_zap_all_pages(kvm); > } > } > diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c > index 3017de0..5d50403 100644 > --- a/arch/x86/kvm/x86.c > +++ b/arch/x86/kvm/x86.c > @@ -2280,7 +2280,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) > if (kvm_pmu_is_valid_msr(vcpu, msr)) > return kvm_pmu_set_msr(vcpu, msr_info); > if (!ignore_msrs) { > - vcpu_unimpl(vcpu, "unhandled wrmsr: 0x%x data 0x%llx\n", > + vcpu_debug_ratelimited(vcpu, "unhandled wrmsr: 0x%x data 0x%llx\n", > msr, data); > return 1; > } else { > @@ -2492,7 +2492,8 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) > if (kvm_pmu_is_valid_msr(vcpu, msr_info->index)) > return kvm_pmu_get_msr(vcpu, msr_info->index, &msr_info->data); > if (!ignore_msrs) { > - vcpu_unimpl(vcpu, "unhandled rdmsr: 0x%x\n", msr_info->index); > + vcpu_debug_ratelimited(vcpu, "unhandled rdmsr: 0x%x\n", > + msr_info->index); > return 1; > } else { > vcpu_unimpl(vcpu, "ignored rdmsr: 0x%x\n", msr_info->index); > diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h > index 01c0b9c..274bf34 100644 > --- a/include/linux/kvm_host.h > +++ b/include/linux/kvm_host.h > @@ -439,6 +439,9 @@ struct kvm { > pr_info("kvm [%i]: " fmt, task_pid_nr(current), ## __VA_ARGS__) > #define kvm_debug(fmt, ...) \ > pr_debug("kvm [%i]: " fmt, task_pid_nr(current), ## __VA_ARGS__) > +#define kvm_debug_ratelimited(fmt, ...) \ > + pr_debug_ratelimited("kvm [%i]: " fmt, task_pid_nr(current), \ > + ## __VA_ARGS__) > #define kvm_pr_unimpl(fmt, ...) \ > pr_err_ratelimited("kvm [%i]: " fmt, \ > task_tgid_nr(current), ## __VA_ARGS__) > @@ -450,6 +453,9 @@ struct kvm { > > #define vcpu_debug(vcpu, fmt, ...) \ > kvm_debug("vcpu%i " fmt, (vcpu)->vcpu_id, ## __VA_ARGS__) > +#define vcpu_debug_ratelimited(vcpu, fmt, ...) \ > + kvm_debug_ratelimited("vcpu%i " fmt, (vcpu)->vcpu_id, \ > + ## __VA_ARGS__) > #define vcpu_err(vcpu, fmt, ...) \ > kvm_err("vcpu%i " fmt, (vcpu)->vcpu_id, ## __VA_ARGS__) > > -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
