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authorJoerg Roedel <jroedel@suse.de>2020-05-04 14:54:12 +0200
committerJoerg Roedel <jroedel@suse.de>2020-05-05 14:38:38 +0200
commit19c6978fba68a2cdedee7d55fb8c3063d47982d9 (patch)
treedf1fc98fe59e02ed1bdd74d32438f22c7adaa6d4 /MAINTAINERS
parentf44a4d7e4f1cdef73c90b1dc749c4d8a7372a8eb (diff)
iommu/amd: Update Device Table in increase_address_space()
The Device Table needs to be updated before the new page-table root can be published in domain->pt_root. Otherwise a concurrent call to fetch_pte might fetch a PTE which is not reachable through the Device Table Entry. Fixes: 92d420ec028d ("iommu/amd: Relax locking in dma_ops path") Reported-by: Qian Cai <cai@lca.pw> Signed-off-by: Joerg Roedel <jroedel@suse.de> Tested-by: Qian Cai <cai@lca.pw> Link: https://lore.kernel.org/r/20200504125413.16798-5-joro@8bytes.org Signed-off-by: Joerg Roedel <jroedel@suse.de>
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