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 <[email protected]> > Reported-by: Roger Pau Monne <[email protected]>
Reviewed-by: Jan Beulich <[email protected]> Nit: Conventionally your two tags should be the other way around, to represent events chronologically. Jan _______________________________________________ Xen-devel mailing list [email protected] https://lists.xenproject.org/mailman/listinfo/xen-devel
