From: Marc Zyngier <maz@kernel.org>
To: D Scott Phillips <scott@os.amperecomputing.com>
Cc: linux-usb@vger.kernel.org,
Mathias Nyman <mathias.nyman@intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH RESEND] xhci: also avoid the XHCI_ZERO_64B_REGS quirk with a passthrough iommu
Date: Thu, 16 Mar 2023 09:11:37 +0000 [thread overview]
Message-ID: <86bkktxdpy.wl-maz@kernel.org> (raw)
In-Reply-To: <20230315181440.1478259-1-scott@os.amperecomputing.com>
On Wed, 15 Mar 2023 18:14:40 +0000,
D Scott Phillips <scott@os.amperecomputing.com> wrote:
>
> Previously the quirk was skipped when no iommu was present. The same
> rationale for skipping the quirk also applies in the iommu.passthrough=1
> case.
>
> Skip applying the XHCI_ZERO_64B_REGS quirk if the device's iommu domain is
> passthrough.
>
> Fixes: 12de0a35c996 ("xhci: Add quirk to zero 64bit registers on Renesas PCIe controllers")
> Signed-off-by: D Scott Phillips <scott@os.amperecomputing.com>
Acked-by: Marc Zyngier <maz@kernel.org>
M.
--
Without deviation from the norm, progress is not possible.
next prev parent reply other threads:[~2023-03-16 9:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-15 18:14 [PATCH RESEND] xhci: also avoid the XHCI_ZERO_64B_REGS quirk with a passthrough iommu D Scott Phillips
2023-03-16 9:11 ` Marc Zyngier [this message]
2023-03-17 15:18 ` Mathias Nyman
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