From: Marc Zyngier <marc.zyngier@arm.com>
To: Shannon Zhao <zhaoshenglong@huawei.com>,
kvmarm@lists.cs.columbia.edu, christoffer.dall@linaro.org
Cc: linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org,
will.deacon@arm.com, alex.bennee@linaro.org, wei@redhat.com,
cov@codeaurora.org, shannon.zhao@linaro.org,
peter.huangpeng@huawei.com, hangaohuai@huawei.com
Subject: Re: [PATCH v6 00/21] KVM: ARM64: Add guest PMU support
Date: Tue, 08 Dec 2015 17:56:20 +0000 [thread overview]
Message-ID: <566719C4.9030305@arm.com> (raw)
In-Reply-To: <1449578860-15808-1-git-send-email-zhaoshenglong@huawei.com>
Shannon,
On 08/12/15 12:47, Shannon Zhao wrote:
> From: Shannon Zhao <shannon.zhao@linaro.org>
>
> This patchset adds guest PMU support for KVM on ARM64. It takes
> trap-and-emulate approach. When guest wants to monitor one event, it
> will be trapped by KVM and KVM will call perf_event API to create a perf
> event and call relevant perf_event APIs to get the count value of event.
There is still some work to do. A number of bugs, some design issues,
and in general a lot of tidying up to do. If you want this in 4.5,
you're going to have to address this quickly.
But quickly doesn't mean rushing it, and I have the feeling that this is
what you've done over the past week. Also, I've reviewed this series 3
times during that time, and I feel a bit exhausted.
So please do not send another one before the end of the week. take the
time to address all the comments, ask questions if needed, and hopefully
I can review it again next Monday.
Thanks,
M.
--
Jazz is not dead. It just smells funny...
WARNING: multiple messages have this Message-ID (diff)
From: marc.zyngier@arm.com (Marc Zyngier)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v6 00/21] KVM: ARM64: Add guest PMU support
Date: Tue, 08 Dec 2015 17:56:20 +0000 [thread overview]
Message-ID: <566719C4.9030305@arm.com> (raw)
In-Reply-To: <1449578860-15808-1-git-send-email-zhaoshenglong@huawei.com>
Shannon,
On 08/12/15 12:47, Shannon Zhao wrote:
> From: Shannon Zhao <shannon.zhao@linaro.org>
>
> This patchset adds guest PMU support for KVM on ARM64. It takes
> trap-and-emulate approach. When guest wants to monitor one event, it
> will be trapped by KVM and KVM will call perf_event API to create a perf
> event and call relevant perf_event APIs to get the count value of event.
There is still some work to do. A number of bugs, some design issues,
and in general a lot of tidying up to do. If you want this in 4.5,
you're going to have to address this quickly.
But quickly doesn't mean rushing it, and I have the feeling that this is
what you've done over the past week. Also, I've reviewed this series 3
times during that time, and I feel a bit exhausted.
So please do not send another one before the end of the week. take the
time to address all the comments, ask questions if needed, and hopefully
I can review it again next Monday.
Thanks,
M.
--
Jazz is not dead. It just smells funny...
next prev parent reply other threads:[~2015-12-08 17:56 UTC|newest]
Thread overview: 126+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-08 12:47 [PATCH v6 00/21] KVM: ARM64: Add guest PMU support Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` [PATCH v6 01/21] ARM64: Move PMU register related defines to asm/pmu.h Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` [PATCH v6 02/21] KVM: ARM64: Define PMU data structure for each vcpu Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 13:37 ` Marc Zyngier
2015-12-08 13:37 ` Marc Zyngier
2015-12-08 13:53 ` Will Deacon
2015-12-08 13:53 ` Will Deacon
2015-12-08 14:10 ` Marc Zyngier
2015-12-08 14:10 ` Marc Zyngier
2015-12-08 14:14 ` Shannon Zhao
2015-12-08 14:14 ` Shannon Zhao
2015-12-08 12:47 ` [PATCH v6 03/21] KVM: ARM64: Add offset defines for PMU registers Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` [PATCH v6 04/21] KVM: ARM64: Add reset and access handlers for PMCR_EL0 register Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` [PATCH v6 05/21] KVM: ARM64: Add reset and access handlers for PMSELR register Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` [PATCH v6 06/21] KVM: ARM64: Add reset and access handlers for PMCEID0 and PMCEID1 register Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 14:23 ` Marc Zyngier
2015-12-08 14:23 ` Marc Zyngier
2015-12-08 12:47 ` [PATCH v6 07/21] KVM: ARM64: PMU: Add perf event map and introduce perf event creating function Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 15:43 ` Marc Zyngier
2015-12-08 15:43 ` Marc Zyngier
2015-12-09 7:38 ` Shannon Zhao
2015-12-09 7:38 ` Shannon Zhao
2015-12-09 7:38 ` Shannon Zhao
2015-12-09 8:23 ` Marc Zyngier
2015-12-09 8:23 ` Marc Zyngier
2015-12-09 8:23 ` Marc Zyngier
2015-12-08 12:47 ` [PATCH v6 08/21] KVM: ARM64: Add access handler for PMEVTYPERn and PMCCFILTR register Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 16:17 ` Marc Zyngier
2015-12-08 16:17 ` Marc Zyngier
2015-12-08 12:47 ` [PATCH v6 09/21] KVM: ARM64: Add access handler for PMXEVTYPER register Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` [PATCH v6 10/21] KVM: ARM64: Add access handler for PMEVCNTRn and PMCCNTR register Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 16:30 ` Marc Zyngier
2015-12-08 16:30 ` Marc Zyngier
2015-12-10 11:36 ` Shannon Zhao
2015-12-10 11:36 ` Shannon Zhao
2015-12-10 11:36 ` Shannon Zhao
2015-12-10 12:07 ` Marc Zyngier
2015-12-10 12:07 ` Marc Zyngier
2015-12-10 13:23 ` Shannon Zhao
2015-12-10 13:23 ` Shannon Zhao
2015-12-10 13:23 ` Shannon Zhao
2015-12-08 12:47 ` [PATCH v6 11/21] KVM: ARM64: Add access handler for PMXEVCNTR register Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 16:33 ` Marc Zyngier
2015-12-08 16:33 ` Marc Zyngier
2015-12-08 12:47 ` [PATCH v6 12/21] KVM: ARM64: Add reset and access handlers for PMCNTENSET and PMCNTENCLR register Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 16:42 ` Marc Zyngier
2015-12-08 16:42 ` Marc Zyngier
2015-12-09 8:35 ` Shannon Zhao
2015-12-09 8:35 ` Shannon Zhao
2015-12-09 8:35 ` Shannon Zhao
2015-12-09 8:56 ` Marc Zyngier
2015-12-09 8:56 ` Marc Zyngier
2015-12-08 12:47 ` [PATCH v6 13/21] KVM: ARM64: Add reset and access handlers for PMINTENSET and PMINTENCLR register Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` [PATCH v6 14/21] KVM: ARM64: Add reset and access handlers for PMOVSSET and PMOVSCLR register Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 16:59 ` Marc Zyngier
2015-12-08 16:59 ` Marc Zyngier
2015-12-09 8:47 ` Shannon Zhao
2015-12-09 8:47 ` Shannon Zhao
2015-12-09 8:47 ` Shannon Zhao
2015-12-08 12:47 ` [PATCH v6 15/21] KVM: ARM64: Add reset and access handlers for PMUSERENR register Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 17:03 ` Marc Zyngier
2015-12-08 17:03 ` Marc Zyngier
2015-12-09 9:18 ` Shannon Zhao
2015-12-09 9:18 ` Shannon Zhao
2015-12-09 9:18 ` Shannon Zhao
2015-12-09 9:49 ` Marc Zyngier
2015-12-09 9:49 ` Marc Zyngier
2015-12-09 9:49 ` Marc Zyngier
2015-12-08 12:47 ` [PATCH v6 16/21] KVM: ARM64: Add reset and access handlers for PMSWINC register Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` [PATCH v6 17/21] KVM: ARM64: Add helper to handle PMCR register bits Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 17:36 ` Marc Zyngier
2015-12-08 17:36 ` Marc Zyngier
2015-12-08 12:47 ` [PATCH v6 18/21] KVM: ARM64: Add PMU overflow interrupt routing Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 17:37 ` Marc Zyngier
2015-12-08 17:37 ` Marc Zyngier
2015-12-08 12:47 ` [PATCH v6 19/21] KVM: ARM64: Reset PMU state when resetting vcpu Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` [PATCH v6 20/21] KVM: ARM64: Free perf event of PMU when destroying vcpu Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` [PATCH v6 21/21] KVM: ARM64: Add a new kvm ARM PMU device Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 12:47 ` Shannon Zhao
2015-12-08 17:43 ` Marc Zyngier
2015-12-08 17:43 ` Marc Zyngier
2015-12-08 17:56 ` Marc Zyngier [this message]
2015-12-08 17:56 ` [PATCH v6 00/21] KVM: ARM64: Add guest PMU support Marc Zyngier
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