linux-kernel - Re: [PATCH] iommu/vt-d: Don't store SIRTP request

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Date:	Tue, 19 Aug 2014 13:09:37 +0200
From:	Joerg Roedel <joro@...tes.org>
To:	Jan Kiszka <jan.kiszka@...mens.com>
Cc:	iommu <iommu@...ts.linux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Jiang Liu <jiang.liu@...ux.intel.com>
Subject: Re: [PATCH] iommu/vt-d: Don't store SIRTP request

On Mon, Aug 11, 2014 at 01:13:25PM +0200, Jan Kiszka wrote:
> Don't store the SIRTP request bit in the register state. It will
> otherwise become sticky and could request an Interrupt Remap Table
> Pointer update on each command register write.
> 
> Found while starting to emulate IR in QEMU, not by observing problems on
> real hardware.
> 
> Signed-off-by: Jan Kiszka <jan.kiszka@...mens.com>
> ---
>  drivers/iommu/intel_irq_remapping.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)

Applied, thanks Jan.
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