From: Peter Zijlstra <peterz@infradead.org>
To: Zhimin Feng <fengzhimin@bytedance.com>
Cc: x86@kernel.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, pbonzini@redhat.com,
seanjc@google.com, vkuznets@redhat.com, wanpengli@tencent.com,
jmattson@google.com, joro@8bytes.org, tglx@linutronix.de,
mingo@redhat.com, bp@alien8.de, hpa@zytor.com,
fweisbec@gmail.com, zhouyibo@bytedance.com,
zhanghaozhong@bytedance.com
Subject: Re: [RFC: timer passthrough 1/9] KVM: vmx: hook set_next_event for getting the host tscd
Date: Fri, 5 Feb 2021 13:28:44 +0100 [thread overview]
Message-ID: <YB05/GIyD/UQRIGn@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20210205100317.24174-2-fengzhimin@bytedance.com>
On Fri, Feb 05, 2021 at 06:03:09PM +0800, Zhimin Feng wrote:
> diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
> index 6c9c342dd0e5..bc50f4a1a7c0 100644
> --- a/kernel/time/tick-common.c
> +++ b/kernel/time/tick-common.c
> @@ -26,6 +26,7 @@
> * Tick devices
> */
> DEFINE_PER_CPU(struct tick_device, tick_cpu_device);
> +EXPORT_SYMBOL_GPL(tick_cpu_device);
> /*
> * Tick next event: keeps track of the tick time
> */
Oh heck no. Modules have no business what so ever accessing this.
next prev parent reply other threads:[~2021-02-05 12:35 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-05 10:03 [RESEND RFC: timer passthrough 0/9] Support timer passthrough for VM Zhimin Feng
2021-02-05 10:03 ` [RFC: timer passthrough 1/9] KVM: vmx: hook set_next_event for getting the host tscd Zhimin Feng
2021-02-05 12:28 ` Peter Zijlstra [this message]
2021-02-05 18:11 ` Thomas Gleixner
2021-02-23 13:07 ` [External] " Zhimin Feng
2021-02-05 10:03 ` [RFC: timer passthrough 2/9] KVM: vmx: enable host lapic timer offload preemtion timer Zhimin Feng
2021-02-05 10:03 ` [RFC: timer passthrough 3/9] KVM: vmx: enable passthrough timer to guest Zhimin Feng
2021-02-05 10:03 ` [RFC: timer passthrough 4/9] KVM: vmx: enable passth timer switch to sw timer Zhimin Feng
2021-02-05 10:03 ` [RFC: timer passthrough 5/9] KVM: vmx: use tsc_adjust to enable tsc_offset timer passthrough Zhimin Feng
2021-02-05 12:43 ` Peter Zijlstra
2021-02-05 18:22 ` Thomas Gleixner
2021-02-05 10:03 ` [RFC: timer passthrough 6/9] KVM: vmx: check enable_timer_passth strictly Zhimin Feng
2021-02-05 10:03 ` [RFC: timer passthrough 7/9] KVM: vmx: save the initial value of host tscd Zhimin Feng
2021-02-05 10:03 ` [RFC: timer passthrough 8/9] KVM: vmx: Dynamically open or close the timer-passthrough for pre-vm Zhimin Feng
2021-02-05 10:03 ` [RFC: timer passthrough 9/9] KVM: vmx: query the state of timer-passth for vm Zhimin Feng
2021-02-05 13:34 ` [RESEND RFC: timer passthrough 0/9] Support timer passthrough for VM Paolo Bonzini
2021-02-08 18:13 ` Konrad Rzeszutek Wilk
2021-02-23 13:31 ` [External] " Zhimin Feng
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