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SubjectRe: [PATCH] kvm: x86: some tsc debug cleanup
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On 15/07/19 06:50, Yi Wang wrote:
> Hi Paolo,
> Would you help to review this patch, plz?
> Many thanks.

I have queued it now.

Paolo

> ---
> Best wishes
> Yi Wang
>
>> 在 2019年7月6日,01:10,Yi Wang <wang.yi59@zte.com.cn> 写道:
>>
>> There are some pr_debug in TSC code, which may have
>> been no use, so remove them as Paolo suggested.
>>
>> Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
>> ---
>> arch/x86/kvm/x86.c | 8 --------
>> 1 file changed, 8 deletions(-)
>>
>> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
>> index fafd81d..86f9861 100644
>> --- a/arch/x86/kvm/x86.c
>> +++ b/arch/x86/kvm/x86.c
>> @@ -1518,9 +1518,6 @@ static void kvm_get_time_scale(uint64_t scaled_hz, uint64_t base_hz,
>>
>> *pshift = shift;
>> *pmultiplier = div_frac(scaled64, tps32);
>> -
>> - pr_debug("%s: base_hz %llu => %llu, shift %d, mul %u\n",
>> - __func__, base_hz, scaled_hz, shift, *pmultiplier);
>> }
>>
>> #ifdef CONFIG_X86_64
>> @@ -1763,12 +1760,10 @@ void kvm_write_tsc(struct kvm_vcpu *vcpu, struct msr_data *msr)
>> vcpu->arch.virtual_tsc_khz == kvm->arch.last_tsc_khz) {
>> if (!kvm_check_tsc_unstable()) {
>> offset = kvm->arch.cur_tsc_offset;
>> - pr_debug("kvm: matched tsc offset for %llu\n", data);
>> } else {
>> u64 delta = nsec_to_cycles(vcpu, elapsed);
>> data += delta;
>> offset = kvm_compute_tsc_offset(vcpu, data);
>> - pr_debug("kvm: adjusted tsc offset by %llu\n", delta);
>> }
>> matched = true;
>> already_matched = (vcpu->arch.this_tsc_generation == kvm->arch.cur_tsc_generation);
>> @@ -1787,8 +1782,6 @@ void kvm_write_tsc(struct kvm_vcpu *vcpu, struct msr_data *msr)
>> kvm->arch.cur_tsc_write = data;
>> kvm->arch.cur_tsc_offset = offset;
>> matched = false;
>> - pr_debug("kvm: new tsc generation %llu, clock %llu\n",
>> - kvm->arch.cur_tsc_generation, data);
>> }
>>
>> /*
>> @@ -6857,7 +6850,6 @@ static void kvm_timer_init(void)
>> cpufreq_register_notifier(&kvmclock_cpufreq_notifier_block,
>> CPUFREQ_TRANSITION_NOTIFIER);
>> }
>> - pr_debug("kvm: max_tsc_khz = %ld\n", max_tsc_khz);
>>
>> cpuhp_setup_state(CPUHP_AP_X86_KVM_CLK_ONLINE, "x86/kvm/clk:online",
>> kvmclock_cpu_online, kvmclock_cpu_down_prep);
>> --
>> 1.8.3.1
>>

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