On 27.09.19 14:02, Jan Beulich wrote:
On 27.09.2019 13:45, Paul Durrant wrote:
PVH dom0 must operate with the iommu settings in 'strict' mode i.e. only the
domain's own pages will be mapped in the IOMMU. The check_hwdom_reqs() is
supposed to ensure this. Unfortunately the test for a PVH dom0 is made
using paging_mode_translate() and, when commit f89f5558 "remove late
(on-demand) construction of IOMMU page tables" moved the call of
check_hwdom_reqs() from iommu_hwdom_init() to iommu_domain_init(), that
test became ineffective (because iommu_domain_init() is called before
paging_enable()).
This patch replaces the test of paging_mode_translate() with a test of
hap_enabled(), and also verifies 'strict' mode is turned on in
arch_iommu_check_autotranslated_hwdom().
Signed-off-by: Paul Durrant <paul.durr...@citrix.com>
Reported-by: Roger Pau Monne <roger....@citrix.com>
Oh, and I guess you've also meant to Cc Jürgen for a release ack
(now done)?
Thanks for the Cc!
Release-acked-by: Juergen Gross <jgr...@suse.com>
Juergen
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