Suravee Suthikulpanit e97685abd5 iommu/amd: Restore IRTE.RemapEn bit for amd_iommu_activate_guest_mode ... Commit e52d58d54a ("iommu/amd: Use cmpxchg_double() when updating 128-bit IRTE") removed an assumption that modify_irte_ga always set the valid bit, which requires the callers to set the appropriate value for the struct irte_ga.valid bit before calling the function. Similar to the commit 26e495f341 ("iommu/amd: Restore IRTE.RemapEn bit after programming IRTE"), which is for the function amd_iommu_deactivate_guest_mode(). The same change is also needed for the amd_iommu_activate_guest_mode(). Otherwise, this could trigger IO_PAGE_FAULT for the VFIO based VMs with AVIC enabled. Fixes: e52d58d54a ("iommu/amd: Use cmpxchg_double() when updating 128-bit IRTE") Reported-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Tested-by: Maxim Levitsky <mlevitsk@redhat.com> Reviewed-by: Joao Martins <joao.m.martins@oracle.com> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Cc: Joao Martins <joao.m.martins@oracle.com> Link: https://lore.kernel.org/r/20200916111720.43913-1-suravee.suthikulpanit@amd.com Signed-off-by: Joerg Roedel <jroedel@suse.de>		2020-09-18 11:17:19 +02:00
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amd	iommu/amd: Restore IRTE.RemapEn bit for amd_iommu_activate_guest_mode	2020-09-18 11:17:19 +02:00
arm	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
intel	iommu/vt-d: Handle 36bit addressing for x86-32	2020-09-04 12:14:28 +02:00
dma-iommu.c	dma-pool: fix coherent pool allocations for IOMMU mappings	2020-08-14 16:27:00 +02:00
exynos-iommu.c
fsl_pamu_domain.c
fsl_pamu_domain.h
fsl_pamu.c
fsl_pamu.h
hyperv-iommu.c
io-pgtable-arm-v7s.c
io-pgtable-arm.c
io-pgtable.c
ioasid.c
iommu-debugfs.c
iommu-sysfs.c
iommu-traces.c
iommu.c
iova.c
ipmmu-vmsa.c
irq_remapping.c
irq_remapping.h
Kconfig
Makefile
msm_iommu_hw-8xxx.h
msm_iommu.c
msm_iommu.h
mtk_iommu_v1.c
mtk_iommu.c
mtk_iommu.h
of_iommu.c
omap-iommu-debug.c
omap-iommu.c
omap-iommu.h
omap-iopgtable.h
rockchip-iommu.c
s390-iommu.c
sun50i-iommu.c
tegra-gart.c
tegra-smmu.c
virtio-iommu.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00