linux-kernel - Re: [PATCH] arm64: dts: juno: fix size of GICv2m MSI frames

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Date:   Wed, 28 Feb 2018 16:54:59 +0000
From:   Marc Zyngier <marc.zyngier@....com>
To:     Sudeep Holla <sudeep.holla@....com>
Cc:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, Liviu Dudau <liviu.dudau@....com>,
        Robin Murphy <robin.murphy@....com>
Subject: Re: [PATCH] arm64: dts: juno: fix size of GICv2m MSI frames

On Wed, 28 Feb 2018 15:48:55 +0000,
sudeep holla wrote:
> 
> Currently the size of GICv2m MSI frames are listed as 4kB while the
> Juno TRM specifies 64kB for each of these MSI frames.
> 
> Though the devices connected themself might just use the first 4kB,
> to be consistent with the genaral practice of 64kB boundary alignment
> to all the devices, lets keep the size as 64kB. This might also help
> in avoiding any surprise when passing the device to a VM.
> 
> This patch increase the size of each GICv2m MSI frames from 4kB to 64kB
> as per the specification.
> 
> Cc: Liviu Dudau <liviu.dudau@....com>
> Cc: Robin Murphy <robin.murphy@....com>
> Cc: Marc Zyngier <marc.zyngier@....com>
> Signed-off-by: Sudeep Holla <sudeep.holla@....com>

Acked-by: Marc Zyngier <marc.zyngier@....com>

	M.

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