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iommu/amd: Enable ga_log_intr when enabling guest_mode

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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: d98de49a53 ('iommu/amd: Enable vAPIC interrupt remapping mode by default')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Suravee Suthikulpanit 2017-07-05 21:29:59 -05:00 committed by Joerg Roedel
parent a46cdc4c63
commit efe6f24160
1 changed files with 1 additions and 0 deletions
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1
drivers/iommu/amd_iommu.c
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@ -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;