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hw/arm/virt: Support for virtio-mem-pci

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This supports virtio-mem-pci device on "virt" platform, by simply
following the implementation on x86.

   * This implements the hotplug handlers to support virtio-mem-pci
     device hot-add, while the hot-remove isn't supported as we have
     on x86.

   * The block size is 512MB on ARM64 instead of 128MB on x86.

   * It has been passing the tests with various combinations like 64KB
     and 4KB page sizes on host and guest, different memory device
     backends like normal, transparent huge page and HugeTLB, plus
     migration.

Co-developed-by: David Hildenbrand <david@redhat.com>
Co-developed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-id: 20220111063329.74447-3-gshan@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Gavin Shan 2022-01-11 14:33:29 +08:00 • committed by Peter Maydell
parent 1263615efe
commit b1b87327a9
3 changed files with 74 additions and 1 deletions
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1
hw/arm/Kconfig
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@ -28,6 +28,7 @@ config ARM_VIRT
select ACPI_HW_REDUCED
select ACPI_APEI
select ACPI_VIOT
select VIRTIO_MEM_SUPPORTED
config CHEETAH
bool