From: Marc Zyngier <maz@kernel.org>
To: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: linux-kernel@vger.kernel.org, mathieu.poirier@linaro.org,
mike.leach@linaro.org, anshuman.khandual@arm.com,
leo.yan@linaro.org, Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v4 05/19] kvm: arm64: Disable guest access to trace filter controls
Date: Tue, 23 Mar 2021 09:16:59 +0000 [thread overview]
Message-ID: <8cb6eced29d9749d88af6f6d2f649019@kernel.org> (raw)
In-Reply-To: <cbe4ef17-38f9-c555-d838-796be752d4a3@arm.com>
Hi Suzuki,
On 2021-03-22 22:24, Suzuki K Poulose wrote:
> Hi Marc,
>
> On 25/02/2021 19:35, Suzuki K Poulose wrote:
>> Disable guest access to the Trace Filter control registers.
>> We do not advertise the Trace filter feature to the guest
>> (ID_AA64DFR0_EL1: TRACE_FILT is cleared) already, but the guest
>> can still access the TRFCR_EL1 unless we trap it.
>>
>> This will also make sure that the guest cannot fiddle with
>> the filtering controls set by a nvhe host.
>>
>> Cc: Marc Zyngier <maz@kernel.org>
>> Cc: Will Deacon <will@kernel.org>
>> Cc: Mark Rutland <mark.rutland@arm.com>
>> Cc: Catalin Marinas <catalin.marinas@arm.com>
>> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
>
> We have already have the v8.4 self hosted tracing support in 5.12-rcX.
> Do you think you can pick this up for this 5.12 ?
Sure, no problem. Shall I pick patch #3 at the same time?
Thanks,
M.
--
Jazz is not dead. It just smells funny...
WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: linux-kernel@vger.kernel.org, mathieu.poirier@linaro.org,
mike.leach@linaro.org, anshuman.khandual@arm.com,
leo.yan@linaro.org, Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v4 05/19] kvm: arm64: Disable guest access to trace filter controls
Date: Tue, 23 Mar 2021 09:16:59 +0000 [thread overview]
Message-ID: <8cb6eced29d9749d88af6f6d2f649019@kernel.org> (raw)
In-Reply-To: <cbe4ef17-38f9-c555-d838-796be752d4a3@arm.com>
Hi Suzuki,
On 2021-03-22 22:24, Suzuki K Poulose wrote:
> Hi Marc,
>
> On 25/02/2021 19:35, Suzuki K Poulose wrote:
>> Disable guest access to the Trace Filter control registers.
>> We do not advertise the Trace filter feature to the guest
>> (ID_AA64DFR0_EL1: TRACE_FILT is cleared) already, but the guest
>> can still access the TRFCR_EL1 unless we trap it.
>>
>> This will also make sure that the guest cannot fiddle with
>> the filtering controls set by a nvhe host.
>>
>> Cc: Marc Zyngier <maz@kernel.org>
>> Cc: Will Deacon <will@kernel.org>
>> Cc: Mark Rutland <mark.rutland@arm.com>
>> Cc: Catalin Marinas <catalin.marinas@arm.com>
>> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
>
> We have already have the v8.4 self hosted tracing support in 5.12-rcX.
> Do you think you can pick this up for this 5.12 ?
Sure, no problem. Shall I pick patch #3 at the same time?
Thanks,
M.
--
Jazz is not dead. It just smells funny...
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next prev parent reply other threads:[~2021-03-23 9:17 UTC|newest]
Thread overview: 132+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-25 19:35 [PATCH v4 00/19] arm64: coresight: Add support for ETE and TRBE Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-02-25 19:35 ` [PATCH v4 01/19] perf: aux: Add flags for the buffer format Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-02-25 19:35 ` [PATCH v4 02/19] perf: aux: Add CoreSight PMU buffer formats Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-03-16 17:04 ` Mathieu Poirier
2021-03-16 17:04 ` Mathieu Poirier
2021-03-22 12:29 ` Suzuki K Poulose
2021-03-22 12:29 ` Suzuki K Poulose
2021-02-25 19:35 ` [PATCH v4 03/19] kvm: arm64: Hide system instruction access to Trace registers Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-03-22 22:21 ` Suzuki K Poulose
2021-03-22 22:21 ` Suzuki K Poulose
2021-02-25 19:35 ` [PATCH v4 04/19] kvm: arm64: nvhe: Save the SPE context early Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-03-01 16:32 ` Alexandru Elisei
2021-03-01 16:32 ` Alexandru Elisei
2021-03-02 10:01 ` Suzuki K Poulose
2021-03-02 10:01 ` Suzuki K Poulose
2021-03-02 10:13 ` Marc Zyngier
2021-03-02 10:13 ` Marc Zyngier
2021-03-02 11:00 ` Alexandru Elisei
2021-03-02 11:00 ` Alexandru Elisei
2021-02-25 19:35 ` [PATCH v4 05/19] kvm: arm64: Disable guest access to trace filter controls Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-03-22 22:24 ` Suzuki K Poulose
2021-03-22 22:24 ` Suzuki K Poulose
2021-03-23 9:16 ` Marc Zyngier [this message]
2021-03-23 9:16 ` Marc Zyngier
2021-03-23 9:44 ` Suzuki K Poulose
2021-03-23 9:44 ` Suzuki K Poulose
2021-02-25 19:35 ` [PATCH v4 06/19] arm64: Add support for trace synchronization barrier Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-02-25 19:35 ` [PATCH v4 07/19] arm64: Add TRBE definitions Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-03-16 17:46 ` Mathieu Poirier
2021-03-16 17:46 ` Mathieu Poirier
2021-02-25 19:35 ` [PATCH v4 08/19] arm64: kvm: Enable access to TRBE support for host Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-03-16 17:49 ` Mathieu Poirier
2021-03-16 17:49 ` Mathieu Poirier
2021-02-25 19:35 ` [PATCH v4 09/19] coresight: etm4x: Move ETM to prohibited region for disable Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-03-08 17:25 ` Mike Leach
2021-03-08 17:25 ` Mike Leach
2021-03-16 19:30 ` Mathieu Poirier
2021-03-16 19:30 ` Mathieu Poirier
2021-03-17 10:44 ` Suzuki K Poulose
2021-03-17 10:44 ` Suzuki K Poulose
2021-03-17 17:09 ` Mathieu Poirier
2021-03-17 17:09 ` Mathieu Poirier
2021-03-22 21:28 ` Mathieu Poirier
2021-03-22 21:28 ` Mathieu Poirier
2021-02-25 19:35 ` [PATCH v4 10/19] coresight: etm-perf: Allow an event to use different sinks Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-03-08 17:25 ` Mike Leach
2021-03-08 17:25 ` Mike Leach
2021-03-16 20:23 ` Mathieu Poirier
2021-03-16 20:23 ` Mathieu Poirier
2021-03-17 10:47 ` Suzuki K Poulose
2021-03-17 10:47 ` Suzuki K Poulose
2021-02-25 19:35 ` [PATCH v4 11/19] coresight: Do not scan for graph if none is present Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-02-25 19:35 ` [PATCH v4 12/19] coresight: etm4x: Add support for PE OS lock Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-02-25 19:35 ` [PATCH v4 13/19] coresight: ete: Add support for ETE sysreg access Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-02-25 22:33 ` kernel test robot
2021-02-25 22:33 ` kernel test robot
2021-02-25 22:33 ` kernel test robot
2021-02-26 6:25 ` kernel test robot
2021-02-26 6:25 ` kernel test robot
2021-02-25 19:35 ` [PATCH v4 14/19] coresight: ete: Add support for ETE tracing Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-02-25 19:35 ` [PATCH v4 15/19] dts: bindings: Document device tree bindings for ETE Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-03-06 21:06 ` Rob Herring
2021-03-06 21:06 ` Rob Herring
2021-03-08 17:25 ` Mike Leach
2021-03-08 17:25 ` Mike Leach
2021-03-22 16:53 ` Suzuki K Poulose
2021-03-22 16:53 ` Suzuki K Poulose
2021-03-22 17:28 ` Rob Herring
2021-03-22 17:28 ` Rob Herring
2021-03-22 22:49 ` Suzuki K Poulose
2021-03-22 22:49 ` Suzuki K Poulose
2021-02-25 19:35 ` [PATCH v4 16/19] coresight: etm-perf: Handle stale output handles Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-02-25 19:35 ` [PATCH v4 17/19] coresight: core: Add support for dedicated percpu sinks Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-02-26 6:34 ` kernel test robot
2021-02-26 6:34 ` kernel test robot
2021-02-26 6:34 ` kernel test robot
2021-03-01 13:54 ` Suzuki K Poulose
2021-03-01 13:54 ` Suzuki K Poulose
2021-03-01 13:54 ` Suzuki K Poulose
2021-03-02 10:21 ` Anshuman Khandual
2021-03-02 10:21 ` Anshuman Khandual
2021-03-02 10:21 ` Anshuman Khandual
2021-03-01 14:08 ` [PATCH v4.1 " Suzuki K Poulose
2021-03-01 14:08 ` Suzuki K Poulose
2021-03-08 17:26 ` [PATCH v4 " Mike Leach
2021-03-08 17:26 ` Mike Leach
2021-03-22 16:57 ` Suzuki K Poulose
2021-03-22 16:57 ` Suzuki K Poulose
2021-03-17 19:31 ` Mathieu Poirier
2021-03-17 19:31 ` Mathieu Poirier
2021-02-25 19:35 ` [PATCH v4 18/19] coresight: sink: Add TRBE driver Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
2021-03-08 17:26 ` Mike Leach
2021-03-08 17:26 ` Mike Leach
2021-03-19 10:30 ` Suzuki K Poulose
2021-03-19 10:30 ` Suzuki K Poulose
2021-03-19 11:55 ` Mike Leach
2021-03-19 11:55 ` Mike Leach
2021-03-22 21:24 ` Mathieu Poirier
2021-03-22 21:24 ` Mathieu Poirier
2021-03-22 23:00 ` Suzuki K Poulose
2021-03-22 23:00 ` Suzuki K Poulose
2021-03-18 18:08 ` Mathieu Poirier
2021-03-18 18:08 ` Mathieu Poirier
2021-03-19 10:34 ` Suzuki K Poulose
2021-03-19 10:34 ` Suzuki K Poulose
2021-03-19 14:47 ` Mathieu Poirier
2021-03-19 14:47 ` Mathieu Poirier
2021-03-19 17:58 ` Mathieu Poirier
2021-03-19 17:58 ` Mathieu Poirier
2021-03-22 21:20 ` Mathieu Poirier
2021-03-22 21:20 ` Mathieu Poirier
2021-02-25 19:35 ` [PATCH v4 19/19] dts: bindings: Document device tree bindings for Arm TRBE Suzuki K Poulose
2021-02-25 19:35 ` Suzuki K Poulose
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