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Date: Sun, 30 Jun 2024 10:55:00 +0100
From: Catalin Marinas <catalin.marinas@arm.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <maz@kernel.org>, LKML <linux-kernel@vger.kernel.org>,
	linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org,
	anna-maria@linutronix.de, shawnguo@kernel.org,
	s.hauer@pengutronix.de, festevam@gmail.com, bhelgaas@google.com,
	rdunlap@infradead.org, vidyas@nvidia.com,
	ilpo.jarvinen@linux.intel.com, apatel@ventanamicro.com,
	kevin.tian@intel.com, nipun.gupta@amd.com, den@valinux.co.jp,
	andrew@lunn.ch, gregory.clement@bootlin.com,
	sebastian.hesselbarth@gmail.com, gregkh@linuxfoundation.org,
	rafael@kernel.org, alex.williamson@redhat.com, will@kernel.org,
	lorenzo.pieralisi@arm.com, jgg@mellanox.com,
	ammarfaizi2@gnuweeb.org, robin.murphy@arm.com,
	lpieralisi@kernel.org, nm@ti.com, kristo@kernel.org,
	vkoul@kernel.org, okaya@kernel.org, agross@kernel.org,
	andersson@kernel.org, mark.rutland@arm.com,
	shameerali.kolothum.thodi@huawei.com, yuzenghui@huawei.com,
	shivamurthy.shastri@linutronix.de, Rob Herring <robh@kernel.org>
Subject: Re: [patch V4 05/21] irqchip/gic-v3-its: Provide MSI parent for
 PCI/MSI[-X]
Message-ID: <ZoErdNIuRYD3oEww@arm.com>
References: <20240623142137.448898081@linutronix.de>
 <20240623142235.024567623@linutronix.de>
 <Zn84OIS0zLWASKr2@arm.com>
 <87h6dcxhy0.ffs@tglx>
 <86ed8ghypg.wl-maz@kernel.org>
 <86cyo0hyc6.wl-maz@kernel.org>
 <86bk3khxdt.wl-maz@kernel.org>
 <87ed8gxc2u.ffs@tglx>
 <87a5j3y1cj.ffs@tglx>
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In-Reply-To: <87a5j3y1cj.ffs@tglx>

On Sat, Jun 29, 2024 at 09:51:08PM +0200, Thomas Gleixner wrote:
> On Sat, Jun 29 2024 at 12:44, Thomas Gleixner wrote:
> >> With this hack, I can boot a GICv3+ITS guest as usual.
> >
> > It's not a hack. It's the proper solution. Let me fold that back and
> > look at the other PCI conversions which probably have the same issue.
> >
> > Thanks for digging into this. This help is truly welcome right now.
> 
> So while I pondered to do it slightly differently for a moment I went
> back to this approach and fixed up the other affected ones too. Full
> delta vs. devmsi-arm-v4-1 below.
> 
> Updated branch:
> 
>    git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git devmsi-arm-v4-2

This seems to work for me as well. I re-added this branch to arm64
for-kernelci for wider exposure.

Thanks.

-- 
Catalin