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[PATCH RFC v3 8/8] hw/i386/acpi-build: Add bypass_iommu check when build


From: Wang Xingang
Subject: [PATCH RFC v3 8/8] hw/i386/acpi-build: Add bypass_iommu check when building IVRS table
Date: Wed, 21 Apr 2021 08:05:03 +0000

From: Xingang Wang <wangxingang5@huawei.com>

When building IVRS table, only devices which go through iommu
will be scanned, and the corresponding ivhd will be inserted.

Signed-off-by: Xingang Wang <wangxingang5@huawei.com>
Signed-off-by: Jiahui Cen <cenjiahui@huawei.com>
---
 hw/i386/acpi-build.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index fdb26682cb..71fb95737c 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -2229,7 +2229,7 @@ ivrs_host_bridges(Object *obj, void *opaque)
     if (object_dynamic_cast(obj, TYPE_PCI_HOST_BRIDGE)) {
         PCIBus *bus = PCI_HOST_BRIDGE(obj)->bus;
 
-        if (bus) {
+        if (bus && !pci_bus_bypass_iommu(bus)) {
             pci_for_each_device(bus, pci_bus_num(bus), insert_ivhd, ivhd_blob);
         }
     }
-- 
2.19.1




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