linux-kernel - Re: [PATCH 2/3] x86: always initialize xen-swiotlb when xen-pcifront is enabling

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Message-ID: <660606b7-7c11-1c7a-fda4-2fdaf4d2a389@suse.com>
Date:   Tue, 27 Jun 2023 09:19:18 +0200
From:   Juergen Gross <jgross@...e.com>
To:     Christoph Hellwig <hch@....de>,
        Stefano Stabellini <sstabellini@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>
Cc:     xen-devel@...ts.xenproject.org, iommu@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] x86: always initialize xen-swiotlb when xen-pcifront
 is enabling

On 12.06.23 16:25, Christoph Hellwig wrote:
> Remove the dangerous late initialization of xen-swiotlb in
> pci_xen_swiotlb_init_late and instead just always initialize
> xen-swiotlb in the boot code if CONFIG_XEN_PCIDEV_FRONTEND is
> enabled and Xen PV PCI is possible.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>

Reviewed-by: Juergen Gross <jgross@...e.com>


Juergen


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