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Re: [Xen-devel] [PATCH] xen: passthrough/amd: Remove unused function guest_iommu_set_base


  • To: Julien Grall <julien.grall@xxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  • Date: Wed, 20 Mar 2019 11:13:56 +0000
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  • Cc: Wei Liu <wei.liu2@xxxxxxxxxx>, Brian Woods <brian.woods@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
  • Delivery-date: Wed, 20 Mar 2019 11:14:29 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
  • Openpgp: preference=signencrypt

On 19/03/2019 23:20, Julien Grall wrote:
> The function is unused and could potentially lead a to trigger the
> BUG_ON() in p2m_change_type_one if misused as the p2m type is not
> sanitized.
>
> So remove it.
>
> Signed-off-by: Julien Grall <julien.grall@xxxxxxx>

Either the entire file goes, or this function stays.  It definitely
isn't production ready yet, as noted in my post-commit notes in
https://lists.xenproject.org/archives/html/xen-devel/2018-11/msg02356.html

However, this functionality is going to be necessary in the future.  It
is probably easier just to leave it as-is.

~Andrew

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