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Suravee Suthikulpanit authored
Commit b9c6ff94 ("iommu/amd: Re-factor guest virtual APIC (de-)activation code") accidentally left out the ir_data pointer when calling modity_irte_ga(), which causes the function amd_iommu_update_ga() to return prematurely due to struct amd_ir_data.ref is NULL and the "is_run" bit of IRTE does not get updated properly. This results in bad I/O performance since IOMMU AVIC always generate GA Log entry and notify IOMMU driver and KVM when it receives interrupt from the PCI pass-through device instead of directly inject interrupt to the vCPU. Fixes by passing ir_data when calling modify_irte_ga() as done previously. Fixes: b9c6ff94 ("iommu/amd: Re-factor guest virtual APIC (de-)activation code") Signed-off-by:
Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by:
Joerg Roedel <jroedel@suse.de>
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