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From: Oliver Upton <oliver.upton@linux.dev>
To: Sebastian Ene <sebastianene@google.com>
Cc: akpm@linux-foundation.org, alexghiti@rivosinc.com,
	ankita@nvidia.com, ardb@kernel.org, catalin.marinas@arm.com,
	christophe.leroy@csgroup.eu, james.morse@arm.com,
	vdonnefort@google.com, mark.rutland@arm.com, maz@kernel.org,
	rananta@google.com, ryan.roberts@arm.com, shahuang@redhat.com,
	suzuki.poulose@arm.com, will@kernel.org, yuzenghui@huawei.com,
	kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, kernel-team@android.com
Subject: Re: [PATCH v7 5/6] KVM: arm64: Initialize the ptdump parser with stage-2 attributes
Date: Mon, 8 Jul 2024 19:47:13 +0000	[thread overview]
Message-ID: <ZoxCQTub5NH3lLrE@linux.dev> (raw)
In-Reply-To: <ZoK6kW1FJiQ0ip0e@google.com>

On Mon, Jul 01, 2024 at 02:17:53PM +0000, Sebastian Ene wrote:
> > <snip>
> > 
> > > +	}, {
> > > +		.mask	= PTE_NG,
> > > +		.val	= PTE_NG,
> > > +		.set	= "FnXS",
> > > +		.clear	= "  ",
> > > +	}, {
> > > +		.mask	= PTE_CONT | PTE_VALID,
> > > +		.val	= PTE_CONT | PTE_VALID,
> > > +		.set	= "CON",
> > > +		.clear	= "   ",
> > > +	}, {
> > 
> > </snip>
> > 
> > Neither of these bits are used at stage-2, why have descriptors for
> > them?
> > 
> 
> Atm, we don't make use of the contiguous bit in stage-2 in upstream (but
> we have it in some experimental patches). I can remove this, no hard
> feelings for them.

Yes, please drop them. I'll nag whoever adds contpte support for stage-2
to add them back :)

-- 
Thanks,
Oliver


  reply	other threads:[~2024-07-08 19:47 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-21 12:32 [PATCH v7 0/6] arm64: ptdump: View the second stage page-tables Sebastian Ene
2024-06-21 12:32 ` [PATCH v7 1/6] KVM: arm64: Move pagetable definitions to common header Sebastian Ene
2024-06-21 12:32 ` [PATCH v7 2/6] arm64: ptdump: Expose the attribute parsing functionality Sebastian Ene
2024-07-05 11:07   ` Will Deacon
2024-07-19 11:44     ` Sebastian Ene
2024-06-21 12:32 ` [PATCH v7 3/6] arm64: ptdump: Use the mask from the state structure Sebastian Ene
2024-07-05 11:12   ` Will Deacon
2024-07-19 13:27     ` Sebastian Ene
2024-06-21 12:32 ` [PATCH v7 4/6] KVM: arm64: Register ptdump with debugfs on guest creation Sebastian Ene
2024-06-21 12:32 ` [PATCH v7 5/6] KVM: arm64: Initialize the ptdump parser with stage-2 attributes Sebastian Ene
2024-06-28 21:18   ` Oliver Upton
2024-07-01 14:17     ` Sebastian Ene
2024-07-08 19:47       ` Oliver Upton [this message]
2024-07-19 14:01     ` Sebastian Ene
2024-07-01  8:42   ` Vincent Donnefort
2024-07-01 14:18     ` Sebastian Ene
2024-07-16  9:59       ` Vincent Donnefort
2024-07-19 14:09         ` Sebastian Ene
2024-07-19 14:36           ` Vincent Donnefort
2024-07-19 16:27             ` Sebastian Ene
2024-06-21 12:32 ` [PATCH v7 6/6] KVM: arm64: Expose guest stage-2 pagetable config to debugfs Sebastian Ene
2024-06-28 20:49   ` Oliver Upton
2024-07-01 14:10     ` Sebastian Ene
2024-06-28 21:25 ` [PATCH v7 0/6] arm64: ptdump: View the second stage page-tables Oliver Upton
2024-07-01 14:22   ` Sebastian Ene

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