From f3f26dae05e39f0f286f588669b54d49b61dcfb8 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Thu, 9 Dec 2021 15:09:38 +0000 Subject: x86/kvm: Silence per-cpu pr_info noise about KVM clocks and steal time 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 Message-Id: <20211209150938.3518-12-dwmw2@infradead.org> Signed-off-by: Paolo Bonzini --- arch/x86/kernel/kvm.c | 6 +++--- arch/x86/kernel/kvmclock.c | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index 59abbdad7729..a438217cbfac 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -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) diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c index 462dd8e9b03d..a35cbf9107af 100644 --- a/arch/x86/kernel/kvmclock.c +++ b/arch/x86/kernel/kvmclock.c @@ -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) -- cgit v1.2.3