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 <suravee.suthikulpanit@amd.com>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: stable@vger.kernel.org # v4.9+
Fixes: d98de49a53e48 ('iommu/amd: Enable vAPIC interrupt remapping mode by default')
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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;