linux-kernel - Re: (subset) [PATCH v10 00/10] kvm/coresight: Support exclude guest and exclude host

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Message-Id: <173669046278.1179369.4535548560849309424.b4-ty@kernel.org>
Date: Sun, 12 Jan 2025 14:02:02 +0000
From: Marc Zyngier <maz@...nel.org>
To: kvmarm@...ts.linux.dev,
	oliver.upton@...ux.dev,
	suzuki.poulose@....com,
	coresight@...ts.linaro.org,
	James Clark <james.clark@...aro.org>
Cc: Joey Gouly <joey.gouly@....com>,
	Zenghui Yu <yuzenghui@...wei.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Mike Leach <mike.leach@...aro.org>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Mark Rutland <mark.rutland@....com>,
	Anshuman Khandual <anshuman.khandual@....com>,
	"Rob Herring (Arm)" <robh@...nel.org>,
	Mark Brown <broonie@...nel.org>,
	Shiqi Liu <shiqiliu@...t.edu.cn>,
	James Morse <james.morse@....com>,
	Fuad Tabba <tabba@...gle.com>,
	Raghavendra Rao Ananta <rananta@...gle.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: (subset) [PATCH v10 00/10] kvm/coresight: Support exclude guest and exclude host

On Tue, 07 Jan 2025 11:32:37 +0000, James Clark wrote:
> FEAT_TRF is a Coresight feature that allows trace capture to be
> completely filtered at different exception levels, unlike the existing
> TRCVICTLR controls which may still emit target addresses of branches,
> even if the following trace is filtered.
> 
> Without FEAT_TRF, it was possible to start a trace session on a host and
> also collect trace from the guest as TRCVICTLR was never programmed to
> exclude guests (and it could still emit target addresses even if it
> was).
> 
> [...]

Applied to next, thanks!

[05/10] tools: arm64: Update sysreg.h header files
        commit: 38138762faffeb923d9f49efbcc09884f1530786
[06/10] arm64/sysreg/tools: Move TRFCR definitions to sysreg
        commit: c382ee674c8b5005798606267d660cf995218b18
[07/10] coresight: trbe: Remove redundant disable call
        commit: a2b579c41fe9c295804abd167751f9fdc73c7006
[08/10] KVM: arm64: coresight: Give TRBE enabled state to KVM
        commit: a665e3bc88081dd65642d83fc22a1abdb6a901bc
[09/10] KVM: arm64: Support trace filtering for guests
        commit: 054b88391bbe2e470c5484cb91622238314344fb
[10/10] coresight: Pass guest TRFCR value to KVM
        commit: aaf69eff6cdb8613ff1f6a520821f769dc92f969

Cheers,

	M.
-- 
Without deviation from the norm, progress is not possible.