Messages in this thread Patch in this message | | | From | Suravee Suthikulpanit <> | Subject | [PATCH] iommu/amd: Enable ga_log_intr when enabling guest_mode | Date | Wed, 5 Jul 2017 21:29:59 -0500 |
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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> Fixes: d98de49a53e48 ('iommu/amd: Enable vAPIC interrupt remapping mode by default') --- drivers/iommu/amd_iommu.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 0f1219f..28fbc81 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -4316,6 +4316,7 @@ 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; -- 1.8.3.1
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