From: Suravee Suthikulpanit Date: Thu, 6 Jul 2017 02:29:59 +0000 (-0500) Subject: iommu/amd: Enable ga_log_intr when enabling guest_mode X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=efe6f241602cb61466895f6816b8ea6b90f04d4e;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git iommu/amd: Enable ga_log_intr when enabling guest_mode IRTE[GALogIntr] bit should set when enabling guest_mode, which enables IOMMU to generate entry in GALog when IRTE[IsRun] is not set, and send an interrupt to notify IOMMU driver. Signed-off-by: Suravee Suthikulpanit Cc: Joerg Roedel Cc: stable@vger.kernel.org # v4.9+ Fixes: d98de49a53e48 ('iommu/amd: Enable vAPIC interrupt remapping mode by default') Signed-off-by: Joerg Roedel --- diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 688e77576e5a..354cbd6392cd 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -4452,6 +4452,7 @@ static int amd_ir_set_vcpu_affinity(struct irq_data *data, void *vcpu_info) /* Setting */ irte->hi.fields.ga_root_ptr = (pi_data->base >> 12); irte->hi.fields.vector = vcpu_pi_info->vector; + irte->lo.fields_vapic.ga_log_intr = 1; irte->lo.fields_vapic.guest_mode = 1; irte->lo.fields_vapic.ga_tag = pi_data->ga_tag;