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Diffstat (limited to 'docs/system/arm/virt.rst')
| -rw-r--r-- | docs/system/arm/virt.rst | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/docs/system/arm/virt.rst b/docs/system/arm/virt.rst index e67e7f0..6a719b9 100644 --- a/docs/system/arm/virt.rst +++ b/docs/system/arm/virt.rst @@ -1,3 +1,5 @@ +.. _arm-virt: + 'virt' generic virtual platform (``virt``) ========================================== @@ -19,6 +21,10 @@ of the 5.0 release and ``virt-5.0`` of the 5.1 release. Migration is not guaranteed to work between different QEMU releases for the non-versioned ``virt`` machine type. +VM migration is not guaranteed when using ``-cpu max``, as features +supported may change between QEMU versions. To ensure your VM can be +migrated, it is recommended to use another cpu model instead. + Supported devices """"""""""""""""" @@ -64,11 +70,11 @@ Supported guest CPU types: - ``cortex-a76`` (64-bit) - ``cortex-a710`` (64-bit) - ``a64fx`` (64-bit) -- ``host`` (with KVM only) +- ``host`` (with KVM and HVF only) - ``neoverse-n1`` (64-bit) - ``neoverse-v1`` (64-bit) - ``neoverse-n2`` (64-bit) -- ``max`` (same as ``host`` for KVM; best possible emulation with TCG) +- ``max`` (same as ``host`` for KVM and HVF; best possible emulation with TCG) Note that the default is ``cortex-a15``, so for an AArch64 guest you must specify a CPU type. @@ -138,6 +144,10 @@ highmem-mmio Set ``on``/``off`` to enable/disable the high memory region for PCI MMIO. The default is ``on``. +highmem-mmio-size + Set the high memory region size for PCI MMIO. Must be a power of 2 and + greater than or equal to the default size (512G). + gic-version Specify the version of the Generic Interrupt Controller (GIC) to provide. Valid values are: @@ -167,10 +177,18 @@ iommu ``smmuv3`` Create an SMMUv3 +default-bus-bypass-iommu + Set ``on``/``off`` to enable/disable `bypass_iommu + <https://gitlab.com/qemu-project/qemu/-/blob/master/docs/bypass-iommu.txt>`_ + for default root bus. + ras Set ``on``/``off`` to enable/disable reporting host memory errors to a guest using ACPI and guest external abort exceptions. The default is off. +acpi + Set ``on``/``off``/``auto`` to enable/disable ACPI. + dtb-randomness Set ``on``/``off`` to pass random seeds via the guest DTB rng-seed and kaslr-seed nodes (in both "/chosen" and @@ -184,6 +202,14 @@ dtb-randomness dtb-kaslr-seed A deprecated synonym for dtb-randomness. +x-oem-id + Set string (up to 6 bytes) to override the default value of field OEMID in ACPI + table header. + +x-oem-table-id + Set string (up to 8 bytes) to override the default value of field OEM Table ID + in ACPI table header. + Linux guest kernel configuration """""""""""""""""""""""""""""""" |