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Message-ID: <3f980e49-e555-0415-092d-70e581f25dc2@intel.com>
Date: Wed, 17 May 2023 08:46:52 -0700
From: Reinette Chatre <reinette.chatre@...el.com>
To: "Tian, Kevin" <kevin.tian@...el.com>,
Alex Williamson <alex.williamson@...hat.com>
CC: "jgg@...dia.com" <jgg@...dia.com>,
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"shameerali.kolothum.thodi@...wei.com"
<shameerali.kolothum.thodi@...wei.com>,
"tglx@...utronix.de" <tglx@...utronix.de>,
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"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
"Jiang, Dave" <dave.jiang@...el.com>,
"Liu, Jing2" <jing2.liu@...el.com>,
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"Yu, Fenghua" <fenghua.yu@...el.com>,
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Subject: Re: [PATCH V5 00/11] vfio/pci: Support dynamic allocation of MSI-X
interrupts
On 5/16/2023 7:14 PM, Tian, Kevin wrote:
>> From: Alex Williamson <alex.williamson@...hat.com>
>> Sent: Wednesday, May 17, 2023 6:53 AM
>>
>> On Thu, 11 May 2023 08:44:27 -0700
>> Reinette Chatre <reinette.chatre@...el.com> wrote:
>>
>>> Changes since V4:
>>> - V4:
>> https://lore.kernel.org/lkml/cover.1682615447.git.reinette.chatre@intel.com
>> /
>>> - Add Kevin's Reviewed-by tag as applicable.
>>> - Treat non-existing INTx interrupt context as kernel bug with WARN. This
>>> exposed an issue in the scenario where INTx mask/unmask may occur
>> without
>>> INTx enabled. This is fixed by obtaining the interrupt context later
>>> (right before use) within impacted functions: vfio_pci_intx_mask() and
>>> vfio_pci_intx_unmask_handler(). (Kevin)
>>> - Treat pci_irq_vector() returning '0' for a MSI/MSI-X interrupt as a kernel
>>> bug via a WARN instead of ignoring this value. (Kevin)
>>> - Improve accuracy of comments. (Kevin)
>>> - Please refer to individual patches for local changes.
>>
>> Looks good to me.
>>
>> Kevin, do you want to add any additional reviews or check the changes
>> made based on your previous comments?
>>
>
> Good to me too. I've given the remaining reviewed-by's.
Thank you very much Alex and Kevin.
Reinette
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