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x86/64: enable IOMMU support

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Enable IOMMU support for Intel and AMD x86 platforms. With this, when the
vfio module is present, physical PCI devices can be passed to VMs, for
example with `qemu-system-x86_64 -device vfio-pci,host=05:00.0 ...`.

IOMMU support increases the kernel size by a small amount (~370KB, from
5239840 B to 5611200 B, a ~7% increase in size).

Signed-off-by: Nicola Corna <nicola@corna.info>
This commit is contained in:
Nicola Corna 2022-08-19 19:34:01 +00:00 committed by Hauke Mehrtens
parent 100536bd37
commit 8fea4a102c
2 changed files with 38 additions and 0 deletions
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19
target/linux/x86/64/config-5.10
View File

@ -38,6 +38,8 @@ CONFIG_AGP=y
CONFIG_AGP_INTEL=y
# CONFIG_AGP_SIS is not set
# CONFIG_AGP_VIA is not set
CONFIG_AMD_IOMMU=y
# CONFIG_AMD_IOMMU_V2 is not set
CONFIG_ARCH_CPUIDLE_HALTPOLL=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
@ -221,6 +223,7 @@ CONFIG_HW_RANDOM_VIRTIO=y
CONFIG_HYPERV=y
CONFIG_HYPERVISOR_GUEST=y
CONFIG_HYPERV_BALLOON=y
CONFIG_HYPERV_IOMMU=y
CONFIG_HYPERV_KEYBOARD=y
CONFIG_HYPERV_NET=y
CONFIG_HYPERV_STORAGE=y
@ -240,6 +243,11 @@ CONFIG_INPUT_XEN_KBDDEV_FRONTEND=y
CONFIG_INTEL_GTT=y
CONFIG_INTEL_IDLE=y
# CONFIG_INTEL_IDXD is not set
CONFIG_INTEL_IOMMU=y
# CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
CONFIG_INTEL_IOMMU_FLOPPY_WA=y
# CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON is not set
# CONFIG_INTEL_IOMMU_SVM is not set
# CONFIG_INTEL_IPS is not set
# CONFIG_INTEL_MEI_HDCP is not set
# CONFIG_INTEL_MENLOW is not set
@ -249,12 +257,22 @@ CONFIG_INTEL_SOC_DTS_IOSF_CORE=y
CONFIG_INTEL_SOC_DTS_THERMAL=y
# CONFIG_INTEL_SPEED_SELECT_INTERFACE is not set
# CONFIG_INTEL_TURBO_MAX_3 is not set
# CONFIG_INTEL_TXT is not set
# CONFIG_INTEL_UNCORE_FREQ_CONTROL is not set
CONFIG_INTERVAL_TREE=y
CONFIG_IOASID=y
CONFIG_IOMMU_API=y
# CONFIG_IOMMU_DEBUG is not set
# CONFIG_IOMMU_DEBUGFS is not set
# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
CONFIG_IOMMU_DMA=y
CONFIG_IOMMU_HELPER=y
CONFIG_IOMMU_IOVA=y
CONFIG_IOMMU_SUPPORT=y
CONFIG_IOSF_MBI=y
# CONFIG_IOSF_MBI_DEBUG is not set
CONFIG_IRQ_MSI_IOMMU=y
CONFIG_IRQ_REMAP=y
# CONFIG_ISCSI_IBFT is not set
CONFIG_ISO9660_FS=y
CONFIG_KALLSYMS_ABSOLUTE_PERCPU=y
@ -401,6 +419,7 @@ CONFIG_THERMAL_WRITABLE_TRIPS=y
# CONFIG_TOSHIBA_BT_RFKILL is not set
CONFIG_TREE_RCU=y
CONFIG_TREE_SRCU=y
# CONFIG_UACCE is not set
# CONFIG_UCLAMP_TASK is not set
CONFIG_UCS2_STRING=y
# CONFIG_UNWINDER_ORC is not set

19
target/linux/x86/64/config-5.15
View File

@ -41,6 +41,8 @@ CONFIG_AGP=y
CONFIG_AGP_INTEL=y
# CONFIG_AGP_SIS is not set
# CONFIG_AGP_VIA is not set
CONFIG_AMD_IOMMU=y
# CONFIG_AMD_IOMMU_V2 is not set
# CONFIG_AMD_PMC is not set
# CONFIG_AMD_PTDMA is not set
# CONFIG_AMD_SFH_HID is not set
@ -234,6 +236,7 @@ CONFIG_HW_RANDOM_VIRTIO=y
CONFIG_HYPERV=y
CONFIG_HYPERVISOR_GUEST=y
CONFIG_HYPERV_BALLOON=y
CONFIG_HYPERV_IOMMU=y
CONFIG_HYPERV_KEYBOARD=y
CONFIG_HYPERV_NET=y
CONFIG_HYPERV_STORAGE=y
@ -255,6 +258,11 @@ CONFIG_INPUT_XEN_KBDDEV_FRONTEND=y
CONFIG_INTEL_GTT=y
CONFIG_INTEL_IDLE=y
# CONFIG_INTEL_IDXD_COMPAT is not set
CONFIG_INTEL_IOMMU=y
# CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
CONFIG_INTEL_IOMMU_FLOPPY_WA=y
# CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON is not set
# CONFIG_INTEL_IOMMU_SVM is not set
# CONFIG_INTEL_IPS is not set
# CONFIG_INTEL_MEI_HDCP is not set
# CONFIG_INTEL_MENLOW is not set
@ -265,12 +273,22 @@ CONFIG_INTEL_SOC_DTS_IOSF_CORE=y
CONFIG_INTEL_SOC_DTS_THERMAL=y
# CONFIG_INTEL_SPEED_SELECT_INTERFACE is not set
# CONFIG_INTEL_TURBO_MAX_3 is not set
# CONFIG_INTEL_TXT is not set
# CONFIG_INTEL_UNCORE_FREQ_CONTROL is not set
CONFIG_INTERVAL_TREE=y
CONFIG_IOASID=y
CONFIG_IOMMU_API=y
# CONFIG_IOMMU_DEBUG is not set
# CONFIG_IOMMU_DEBUGFS is not set
# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
CONFIG_IOMMU_DMA=y
CONFIG_IOMMU_HELPER=y
CONFIG_IOMMU_IOVA=y
CONFIG_IOMMU_SUPPORT=y
CONFIG_IOSF_MBI=y
# CONFIG_IOSF_MBI_DEBUG is not set
CONFIG_IRQ_MSI_IOMMU=y
CONFIG_IRQ_REMAP=y
# CONFIG_ISCSI_IBFT is not set
CONFIG_ISO9660_FS=y
CONFIG_KALLSYMS_ABSOLUTE_PERCPU=y
@ -422,6 +440,7 @@ CONFIG_THERMAL_WRITABLE_TRIPS=y
# CONFIG_TOSHIBA_BT_RFKILL is not set
CONFIG_TREE_RCU=y
CONFIG_TREE_SRCU=y
# CONFIG_UACCE is not set
# CONFIG_UCLAMP_TASK is not set
CONFIG_UCS2_STRING=y
# CONFIG_UNWINDER_ORC is not set