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x86/kvm: Silence per-cpu pr_info noise about KVM clocks and steal time

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I made the actual CPU bringup go nice and fast... and then Linux spends
half a minute printing stupid nonsense about clocks and steal time for
each of 256 vCPUs. Don't do that. Nobody cares.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Message-Id: <20211209150938.3518-12-dwmw2@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
David Woodhouse 2021-12-09 15:09:38 +00:00 • committed by Paolo Bonzini
parent 018d70ffcf
commit f3f26dae05
2 changed files with 4 additions and 4 deletions
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6
arch/x86/kernel/kvm.c
View file

@ -313,7 +313,7 @@ static void kvm_register_steal_time(void)
return;
wrmsrl(MSR_KVM_STEAL_TIME, (slow_virt_to_phys(st) | KVM_MSR_ENABLED));
pr_info("stealtime: cpu %d, msr %llx\n", cpu,
pr_debug("stealtime: cpu %d, msr %llx\n", cpu,
(unsigned long long) slow_virt_to_phys(st));
}
@ -350,7 +350,7 @@ static void kvm_guest_cpu_init(void)
wrmsrl(MSR_KVM_ASYNC_PF_EN, pa);
__this_cpu_write(apf_reason.enabled, 1);
pr_info("setup async PF for cpu %d\n", smp_processor_id());
pr_debug("setup async PF for cpu %d\n", smp_processor_id());
}
if (kvm_para_has_feature(KVM_FEATURE_PV_EOI)) {
@ -376,7 +376,7 @@ static void kvm_pv_disable_apf(void)
wrmsrl(MSR_KVM_ASYNC_PF_EN, 0);
__this_cpu_write(apf_reason.enabled, 0);
pr_info("disable async PF for cpu %d\n", smp_processor_id());
pr_debug("disable async PF for cpu %d\n", smp_processor_id());
}
static void kvm_disable_steal_time(void)

2
arch/x86/kernel/kvmclock.c
View file

@ -174,7 +174,7 @@ static void kvm_register_clock(char *txt)
pa = slow_virt_to_phys(&src->pvti) | 0x01ULL;
wrmsrl(msr_kvm_system_time, pa);
pr_info("kvm-clock: cpu %d, msr %llx, %s", smp_processor_id(), pa, txt);
pr_debug("kvm-clock: cpu %d, msr %llx, %s", smp_processor_id(), pa, txt);
}
static void kvm_save_sched_clock_state(void)