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-Tag: C0P2-H0.0--20200415~7884 X-Git-Url: https://git.somdevices.com/?a=commitdiff_plain;h=be5c6efc996e439205c298331c755f007f66484b;p=linux.git iommu/amd: Enable ga_log_intr when enabling guest_mode commit efe6f241602cb61466895f6816b8ea6b90f04d4e upstream. 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 Fixes: d98de49a53e48 ('iommu/amd: Enable vAPIC interrupt remapping mode by default') Signed-off-by: Joerg Roedel Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 41800b6d492e..c380b7e8f1c6 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -4294,6 +4294,7 @@ 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;