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36efa250a4
Allow instantiating a virtio-iommu device by adding an ACPI Virtual I/O Translation table (VIOT), which describes the relation between the virtio-iommu and the endpoints it manages. Add a hotplug handler for virtio-iommu on x86 and set the necessary reserved region property. On x86, the [0xfee00000, 0xfeefffff] DMA region is reserved for MSIs. DMA transactions to this range either trigger IRQ remapping in the IOMMU or bypasses IOMMU translation. Although virtio-iommu does not support IRQ remapping it must be informed of the reserved region so that it can forward DMA transactions targeting this region. Reviewed-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Tested-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Message-Id: <20211026182024.2642038-5-jean-philippe@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
140 lines
2.3 KiB
Plaintext
140 lines
2.3 KiB
Plaintext
config X86_FW_OVMF
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bool
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config SEV
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bool
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select X86_FW_OVMF
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depends on KVM
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config SGX
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bool
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depends on KVM
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config PC
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bool
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imply APPLESMC
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imply HYPERV
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imply ISA_IPMI_KCS
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imply ISA_IPMI_BT
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imply PCI_IPMI_KCS
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imply PCI_IPMI_BT
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imply IPMI_SSIF
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imply ISA_DEBUG
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imply PARALLEL
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imply PCI_DEVICES
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imply PVPANIC_ISA
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imply QXL
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imply SEV
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imply SGX
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imply SGA
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imply TEST_DEVICES
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imply TPM_CRB
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imply TPM_TIS_ISA
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imply VGA_PCI
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imply VIRTIO_VGA
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imply NVDIMM
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select FDC_ISA
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select I8259
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select I8254
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select PCKBD
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select PCSPK
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select I8257
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select MC146818RTC
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# For ACPI builder:
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select SERIAL_ISA
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select ACPI_PCI
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select ACPI_VMGENID
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select VIRTIO_PMEM_SUPPORTED
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select VIRTIO_MEM_SUPPORTED
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config PC_PCI
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bool
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select APIC
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select IOAPIC
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select APM
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select PC
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config PC_ACPI
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bool
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select ACPI_X86
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select ACPI_CPU_HOTPLUG
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select ACPI_MEMORY_HOTPLUG
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select ACPI_VIOT
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select SMBUS_EEPROM
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select PFLASH_CFI01
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depends on ACPI_SMBUS
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config I440FX
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bool
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imply E1000_PCI
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imply VMPORT
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imply VMMOUSE
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select PC_PCI
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select PC_ACPI
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select ACPI_SMBUS
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select PCI_I440FX
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select PIIX3
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select IDE_PIIX
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select DIMM
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select SMBIOS
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select FW_CFG_DMA
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config ISAPC
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bool
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select ISA_BUS
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select PC
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select IDE_ISA
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select VGA_ISA
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# FIXME: it is in the same file as i440fx, and does not compile
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# if separated
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depends on I440FX
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config Q35
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bool
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imply VTD
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imply AMD_IOMMU
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imply E1000E_PCI_EXPRESS
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imply VMPORT
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imply VMMOUSE
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select PC_PCI
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select PC_ACPI
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select PCI_EXPRESS_Q35
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select LPC_ICH9
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select AHCI_ICH9
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select DIMM
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select SMBIOS
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select FW_CFG_DMA
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config MICROVM
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bool
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select SERIAL_ISA # for serial_hds_isa_init()
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select ISA_BUS
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select APIC
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select IOAPIC
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select I8259
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select MC146818RTC
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select VIRTIO_MMIO
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select ACPI_HW_REDUCED
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select PCI_EXPRESS_GENERIC_BRIDGE
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select USB_XHCI_SYSBUS
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select I8254
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config X86_IOMMU
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bool
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depends on PC
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config VTD
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bool
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select X86_IOMMU
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config AMD_IOMMU
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bool
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select X86_IOMMU
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config VMPORT
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bool
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config VMMOUSE
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bool
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depends on VMPORT
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