On 20/08/2018 09:30, Jan Beulich wrote:
>>>> On 20.08.18 at 05:32, <zhenzhong.d...@oracle.com> wrote:
>> When TBOOT enabled, acpi_parse_dmar() zap a copy of DMAR table rather
>> than the real table, so make it controled by config option based on the
>> fact that we already have done the real zapping in tboot_parse_dmar_table().
> Is this just a cosmetic change, or is there any harm done by the extra
> zapping?

Before 123c7793797502b222300eb710cd3873dcca41ee, calling it multiple
times would require an equivalent number of reinstate calls for it to work.

That change went into Xen 4.6, whereas I guess this is a patch being
upstreamed from Oracles 4.4 patchqueue?

~Andrew

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