On 28.02.2020 13:41, Roger Pau Monné wrote:
> On Fri, Feb 28, 2020 at 01:10:59PM +0100, Jan Beulich wrote:
>> We should neither cause IOMMU initialization as a whole to fail in this
>> case (we should still be able to bring up the system in non-x2APIC or
>> x2APIC physical mode), nor should the remainder of the function be
>> skipped (as the main part of it won't get entered a 2nd time)
>
> I'm not sure I see why it won't get entered a second time. AFAICT
> init_done won't be set if amd_iommu_init fails, and hence will be
> called again with xt == false in iov_detect?
Not very far from the top of the function there is
/* Have we been here before? */
if ( ivrs_bdf_entries )
return 0;
Hence me saying "main part" rather than "the function as a whole".
Jan
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
