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From: Thomas Gleixner <tglx@linutronix.de>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Jon Derrick <jonathan.derrick@intel.com>
Cc: linux-pci@vger.kernel.org, Bjorn Helgaas <helgaas@kernel.org>,
	Christoph Hellwig <hch@lst.de>,
	Andrzej Jakowski <andrzej.jakowski@linux.intel.com>,
	Sushma Kalakota <sushmax.kalakota@intel.com>,
	linux-kernel@vger.kernel.org, x86@kernel.org,
	Andy Shevchenko <andriy.shevchenko@intel.com>
Subject: Re: [PATCH 5/6] x86/apic/msi: Use Real PCI DMA device when configuring IRTE
Date: Mon, 28 Sep 2020 13:32:24 +0200	[thread overview]
Message-ID: <877dsekugn.fsf@nanos.tec.linutronix.de> (raw)
In-Reply-To: <20200907143207.GC9474@e121166-lin.cambridge.arm.com>

On Mon, Sep 07 2020 at 15:32, Lorenzo Pieralisi wrote:

> On Tue, Jul 28, 2020 at 01:49:44PM -0600, Jon Derrick wrote:
>> VMD retransmits child device MSI/X with the VMD endpoint's requester-id.
>> In order to support direct interrupt remapping of VMD child devices,
>> ensure that the IRTE is programmed with the VMD endpoint's requester-id
>> using pci_real_dma_dev().
>> 
>> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
>> Signed-off-by: Jon Derrick <jonathan.derrick@intel.com>
>> ---
>>  arch/x86/kernel/apic/msi.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> I'd need an x86 maintainer ACK on this patch.

That conflicts with the big PCI/MSI overhaul which is pending in

  git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/irq

native_setup_msi_irqs() does not exist anymore.

patch 3 has conflicts as well.

Thanks,

        tglx

  reply	other threads:[~2020-09-28 11:32 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-28 19:49 [PATCH 0/6] VMD MSI Remapping Bypass Jon Derrick
2020-07-28 19:49 ` [PATCH 1/6] PCI: vmd: Create physical offset helper Jon Derrick
2020-07-28 19:49 ` [PATCH 2/6] PCI: vmd: Create bus offset configuration helper Jon Derrick
2020-07-28 19:49 ` [PATCH 3/6] PCI: vmd: Create IRQ Domain " Jon Derrick
2020-07-28 19:49 ` [PATCH 4/6] PCI: vmd: Create IRQ allocation helper Jon Derrick
2020-07-28 19:49 ` [PATCH 5/6] x86/apic/msi: Use Real PCI DMA device when configuring IRTE Jon Derrick
2020-09-07 14:32   ` Lorenzo Pieralisi
2020-09-28 11:32     ` Thomas Gleixner [this message]
2020-10-20 20:26   ` Bjorn Helgaas
2020-10-21  1:20     ` Derrick, Jonathan
2020-10-21  2:21       ` Bjorn Helgaas
2020-10-21 19:55         ` Derrick, Jonathan
2020-07-28 19:49 ` [PATCH 6/6] PCI: vmd: Disable MSI/X remapping when possible Jon Derrick
2020-10-20 20:23   ` Bjorn Helgaas
2020-08-17 16:14 ` [PATCH 0/6] VMD MSI Remapping Bypass Derrick, Jonathan

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