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 <suravee.suthikulpanit@amd.com>
Cc: Joerg Roedel <jroedel@suse.de>
Fixes: d98de49a53e48 ('iommu/amd: Enable vAPIC interrupt remapping mode by default')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 41800b6..c380b7e 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -4294,6 +4294,7 @@
/* 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;