From: Peter Zijlstra <peterz@infradead.org>
To: Wei Wang <wei.w.wang@intel.com>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
pbonzini@redhat.com, ak@linux.intel.com, kan.liang@intel.com,
mingo@redhat.com, rkrcmar@redhat.com, like.xu@intel.com,
jannh@google.com, arei.gonglei@huawei.com
Subject: Re: [PATCH v3 4/5] KVM/x86/vPMU: Add APIs to support host save/restore the guest lbr stack
Date: Thu, 20 Sep 2018 14:17:32 +0200 [thread overview]
Message-ID: <20180920121732.GR24124@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <1537437959-8751-5-git-send-email-wei.w.wang@intel.com>
On Thu, Sep 20, 2018 at 06:05:58PM +0800, Wei Wang wrote:
> diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
> index 1562863..a91fdef 100644
> --- a/arch/x86/events/perf_event.h
> +++ b/arch/x86/events/perf_event.h
> @@ -223,6 +223,7 @@ struct cpu_hw_events {
> */
> u64 intel_ctrl_guest_mask;
> u64 intel_ctrl_host_mask;
> + bool guest_lbr;
> struct perf_guest_switch_msr guest_switch_msrs[X86_PMC_IDX_MAX];
>
> /*
Please, no bools in aggregate types.
Either use a bitfield or u8, there's more LBR related bools, convert and
group the lot to avoid holes.
next prev parent reply other threads:[~2018-09-20 12:17 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-20 10:05 [PATCH v3 0/5] Guest LBR Enabling Wei Wang
2018-09-20 10:05 ` [PATCH v3 1/5] perf/x86: add a function to get the lbr stack Wei Wang
2018-09-20 12:05 ` Peter Zijlstra
2018-09-20 12:07 ` Peter Zijlstra
2018-09-20 10:05 ` [PATCH v3 2/5] KVM/x86: KVM_CAP_X86_GUEST_LBR Wei Wang
2018-09-20 10:05 ` [PATCH v3 3/5] KVM/x86: expose MSR_IA32_PERF_CAPABILITIES to the guest Wei Wang
2018-09-20 12:38 ` Wei Wang
2018-09-20 10:05 ` [PATCH v3 4/5] KVM/x86/vPMU: Add APIs to support host save/restore the guest lbr stack Wei Wang
2018-09-20 12:17 ` Peter Zijlstra [this message]
2018-09-20 12:32 ` Peter Zijlstra
2018-09-27 13:45 ` Wang, Wei W
2018-09-20 15:30 ` Andi Kleen
2018-09-20 16:24 ` Peter Zijlstra
2018-09-27 10:10 ` Wang, Wei W
2018-09-27 10:05 ` Wang, Wei W
2018-09-20 10:05 ` [PATCH v3 5/5] KVM/x86/lbr: lazy save " Wei Wang
2018-09-20 12:07 ` Gonglei (Arei)
2018-09-27 14:11 ` Wang, Wei W
2018-09-20 12:37 ` Peter Zijlstra
2018-09-20 12:58 ` Wei Wang
2018-09-20 12:57 ` Peter Zijlstra
2018-09-20 11:34 ` [PATCH v3 0/5] Guest LBR Enabling Gonglei (Arei)
2018-09-20 12:36 ` Wei Wang
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