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Date: Thu, 1 May 2025 14:52:47 +0100
From: Joey Gouly <joey.gouly@arm.com>
To: Marc Zyngier <maz@kernel.org>
Cc: kvmarm@lists.linux.dev, kvm@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
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	Mark Rutland <mark.rutland@arm.com>, Fuad Tabba <tabba@google.com>,
	Will Deacon <will@kernel.org>,
	Catalin Marinas <catalin.marinas@arm.com>
Subject: Re: [PATCH v3 08/42] arm64: sysreg: Add registers trapped by
 HFG{R,W}TR2_EL2
Message-ID: <20250501135247.GA2195277@e124191.cambridge.arm.com>
References: <20250426122836.3341523-1-maz@kernel.org>
 <20250426122836.3341523-9-maz@kernel.org>
 <20250501101136.GE1859293@e124191.cambridge.arm.com>
 <86wmb0h2ap.wl-maz@kernel.org>
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In-Reply-To: <86wmb0h2ap.wl-maz@kernel.org>

On Thu, May 01, 2025 at 02:46:06PM +0100, Marc Zyngier wrote:
> On Thu, 01 May 2025 11:11:36 +0100,
> Joey Gouly <joey.gouly@arm.com> wrote:
> > 
> > On Sat, Apr 26, 2025 at 01:28:02PM +0100, Marc Zyngier wrote:
> > > Bulk addition of all the system registers trapped by HFG{R,W}TR2_EL2.
> > > 
> > > The descriptions are extracted from the BSD-licenced JSON file part
> > > of the 2025-03 drop from ARM.
> > > 
> > > Signed-off-by: Marc Zyngier <maz@kernel.org>
> > > ---
> > >  arch/arm64/tools/sysreg | 395 ++++++++++++++++++++++++++++++++++++++++
> > >  1 file changed, 395 insertions(+)
> > > 
> > > diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
> > > index 6433a3ebcef49..7969e632492bb 100644
> > > --- a/arch/arm64/tools/sysreg
> > > +++ b/arch/arm64/tools/sysreg
> > > @@ -2068,6 +2068,26 @@ Field	1	A
> > >  Field	0	M
> > >  EndSysreg
> > >  
> > > +Sysreg	SCTLR_EL12      3	5	1	0	0
> > > +Mapping	SCTLR_EL1
> > > +EndSysreg
> > > +
> > > +Sysreg	SCTLRALIAS_EL1  3	0	1	4	6
> > > +Mapping	SCTLR_EL1
> > > +EndSysreg
> > > +
> > > +Sysreg	ACTLR_EL1	3	0	1	0	1
> > > +Field   63:0    IMPDEF
> > > +EndSysreg
> > > +
> > > +Sysreg	ACTLR_EL12      3	5	1	0	1
> > > +Mapping	ACTLR_EL1
> > > +EndSysreg
> > > +
> > > +Sysreg	ACTLRALIAS_EL1  3	0	1	4	5
> > > +Mapping	ACTLR_EL1
> > > +EndSysreg
> > > +
> > 
> > Do you want to update CPACR_EL1 while you're at it, so that it matches
> > CPACRMASK_EL1?
> 
> Do you mean adding the TAM and TCPAC bits added by FEAT_NV2p1? Sure,
> no problem. I'll probably add that as a separate patch though, as I
> want this one to only be concerned with the FEAT_FGT2-controlled
> accessors.

Yep, sounds good.

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