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From: Wang Xingang <wangxingang5@huawei.com>
To: <qemu-devel@nongnu.org>, <qemu-arm@nongnu.org>,
	<eric.auger@redhat.com>, <shannon.zhaosl@gmail.com>,
	<imammedo@redhat.com>, <mst@redhat.com>,
	<marcel.apfelbaum@gmail.com>, <peter.maydell@linaro.org>,
	<ehabkost@redhat.com>, <richard.henderson@linaro.org>,
	<pbonzini@redhat.com>
Cc: xieyingtai@huawei.com, cenjiahui@huawei.com, wangxingang5@huawei.com
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
Message-ID: <1618992303-19556-9-git-send-email-wangxingang5@huawei.com> (raw)
In-Reply-To: <1618992303-19556-1-git-send-email-wangxingang5@huawei.com>

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



      parent reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-21  8:04 [PATCH RFC v3 0/8] Introduce Bypass IOMMU Feature Wang Xingang
2021-04-21  8:04 ` [PATCH RFC v3 1/8] hw/pci/pci_host: Allow bypass iommu for pci host Wang Xingang
2021-04-21  8:04 ` [PATCH RFC v3 2/8] hw/pxb: Add a bypass iommu property Wang Xingang
2021-04-21  8:04 ` [PATCH RFC v3 3/8] hw/arm/virt: Add a machine option to bypass iommu for primary bus Wang Xingang
2021-04-21  8:04 ` [PATCH RFC v3 4/8] hw/i386: Add a pc " Wang Xingang
2021-04-21  8:05 ` [PATCH RFC v3 5/8] hw/pci: Add pci_bus_range to get bus number range Wang Xingang
2021-04-21  8:05 ` [PATCH RFC v3 6/8] hw/arm/virt-acpi-build: Add explicit IORT idmap for smmuv3 node Wang Xingang
2021-04-21  8:05 ` [PATCH RFC v3 7/8] hw/i386/acpi-build: Add explicit scope in DMAR table Wang Xingang
2021-04-21  8:05 ` Wang Xingang [this message]

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