[v3] intel_iommu: Enable stage-1 translation for passthrough device

[PATCH v3 20/20] intel_iommu: Enable host device when x-flts=on in scalable mode

Zhenzhong Duan posted 20 patches 4 months, 1 week ago

Diff against v1 v1 v2 v4 v5
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Maintainers: "Michael S. Tsirkin" <mst@redhat.com>, Jason Wang <jasowang@redhat.com>, Yi Liu <yi.l.liu@intel.com>, "Clément Mathieu--Drif" <clement.mathieu--drif@eviden.com>, Paolo Bonzini <pbonzini@redhat.com>, Richard Henderson <richard.henderson@linaro.org>, Eduardo Habkost <eduardo@habkost.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Alex Williamson <alex.williamson@redhat.com>, "Cédric Le Goater" <clg@redhat.com>, Eric Auger <eric.auger@redhat.com>, Zhenzhong Duan <zhenzhong.duan@intel.com>

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[PATCH v3 20/20] intel_iommu: Enable host device when x-flts=on in scalable mode

Posted by Zhenzhong Duan 4 months, 1 week ago

Now that all infrastructures of supporting passthrough device running
with stage-1 translation are there, enable it now.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
---
 hw/i386/intel_iommu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index 0a86bd47b2..08e4d5cfe7 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -5203,6 +5203,8 @@ static bool vtd_check_hiod(IntelIOMMUState *s, VTDHostIOMMUDevice *vtd_hiod,
                    "when x-flts=on");
         return false;
     }
+
+    return true;
 #endif
 
     error_setg(errp, "host IOMMU is incompatible with stage-1 translation");
-- 
2.47.1