From: Marc Zyngier <maz@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
Alex Williamson <alex.williamson@redhat.com>,
"Raj, Ashok" <ashok.raj@intel.com>,
"David S. Miller" <davem@davemloft.net>,
Bjorn Helgaas <bhelgaas@google.com>,
linux-pci@vger.kernel.org, Kevin Tian <kevin.tian@intel.com>,
Ingo Molnar <mingo@kernel.org>,
x86@kernel.org, linux-s390@vger.kernel.org,
Niklas Schnelle <schnelle@linux.ibm.com>,
Gerald Schaefer <gerald.schaefer@linux.ibm.com>,
Heiko Carstens <hca@linux.ibm.com>,
Christian Borntraeger <borntraeger@de.ibm.com>
Subject: Re: [patch V2 00/19] PCI/MSI, x86: Cure a couple of inconsistencies
Date: Tue, 10 Aug 2021 08:49:37 +0100 [thread overview]
Message-ID: <411f1a9b861f45c3366c63369b42fcc0@kernel.org> (raw)
In-Reply-To: <20210729215139.889204656@linutronix.de>
On 2021-07-29 22:51, Thomas Gleixner wrote:
> A recent discussion about the PCI/MSI management for virtio unearthed a
> violation of the MSI-X specification vs. writing the MSI-X message:
> under
> certain circumstances the entry is written without being masked.
>
> While looking at that and the related violation of the x86 non-remapped
> interrupt affinity mechanism a few other issues were discovered by
> inspection.
>
> The following series addresses these.
>
> Note this does not fix the virtio issue, but while staring at the above
> problems I came up with a plan to address this. I'm still trying to
> convince myself that I can get away without sprinkling locking all over
> the
> place, so don't hold your breath that this will materialize tomorrow.
For the patches I haven't acked yet, and with the fix on patch 18:
Reviewed-by: Marc Zyngier <maz@kernel.org>
Tested-by: Marc Zyngier <maz@kernel.org>
Thanks,
M.
prev parent reply other threads:[~2021-08-10 7:49 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-29 21:51 [patch V2 00/19] PCI/MSI, x86: Cure a couple of inconsistencies Thomas Gleixner
2021-07-29 21:51 ` [patch V2 01/19] PCI/MSI: Enable and mask MSI-X early Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 02/19] PCI/MSI: Mask all unused MSI-X entries Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 03/19] PCI/MSI: Enforce that MSI-X table entry is masked for update Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 04/19] PCI/MSI: Enforce MSI[X] entry updates to be visible Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 05/19] PCI/MSI: Do not set invalid bits in MSI mask Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 06/19] PCI/MSI: Correct misleading comments Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 07/19] PCI/MSI: Use msi_mask_irq() in pci_msi_shutdown() Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 08/19] PCI/MSI: Protect msi_desc::masked for multi-MSI Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 09/19] genirq: Provide IRQCHIP_AFFINITY_PRE_STARTUP Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 10/19] x86/ioapic: Force affinity setup before startup Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 11/19] x86/msi: " Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 12/19] s390/pci: Do not mask MSI[-X] entries on teardown Thomas Gleixner
2021-08-03 12:48 ` Niklas Schnelle
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 13/19] PCI/MSI: Simplify msi_verify_entries() Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 14/19] PCI/MSI: Rename msi_desc::masked Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 15/19] PCI/MSI: Consolidate error handling in msi_capability_init() Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 16/19] PCI/MSI: Deobfuscate virtual MSI-X Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 17/19] PCI/MSI: Cleanup msi_mask() Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 18/19] PCI/MSI: Provide a new set of mask and unmask functions Thomas Gleixner
[not found] ` <87r1f6bpt7.wl-maz@kernel.org>
2021-08-09 18:56 ` Thomas Gleixner
2021-08-09 19:08 ` [patch V3 " Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-07-29 21:51 ` [patch V2 19/19] PCI/MSI: Use new mask/unmask functions Thomas Gleixner
2021-08-10 9:07 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2021-08-10 7:49 ` Marc Zyngier [this message]
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