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device/virtio-nsm: Support for Nitro Secure Module device

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Nitro Secure Module (NSM)[1] device is used in AWS Nitro Enclaves[2]
for stripped down TPM functionality like cryptographic attestation.
The requests to and responses from NSM device are CBOR[3] encoded.

This commit adds support for NSM device in QEMU. Although related to
AWS Nitro Enclaves, the virito-nsm device is independent and can be
used in other machine types as well. The libcbor[4] library has been
used for the CBOR encoding and decoding functionalities.

[1] https://lists.oasis-open.org/archives/virtio-comment/202310/msg00387.html
[2] https://docs.aws.amazon.com/enclaves/latest/user/nitro-enclave.html
[3] http://cbor.io/
[4] https://libcbor.readthedocs.io/en/latest/

Signed-off-by: Dorjoy Chowdhury <dorjoychy111@gmail.com>
Reviewed-by: Alexander Graf <graf@amazon.com>
Link: https://lore.kernel.org/r/20241008211727.49088-3-dorjoychy111@gmail.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Dorjoy Chowdhury 2024-10-09 03:17:23 +06:00 • committed by Paolo Bonzini
parent 1ac32dc8ea
commit bb154e3e0c
12 changed files with 2252 additions and 0 deletions
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2
hw/virtio/meson.build
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@ -54,6 +54,7 @@ specific_virtio_ss.add(when: 'CONFIG_VIRTIO_PMEM', if_true: files('virtio-pmem.c
specific_virtio_ss.add(when: 'CONFIG_VHOST_VSOCK', if_true: files('vhost-vsock.c'))
specific_virtio_ss.add(when: 'CONFIG_VHOST_USER_VSOCK', if_true: files('vhost-user-vsock.c'))
specific_virtio_ss.add(when: 'CONFIG_VIRTIO_RNG', if_true: files('virtio-rng.c'))
specific_virtio_ss.add(when: 'CONFIG_VIRTIO_NSM', if_true: [files('virtio-nsm.c', 'cbor-helpers.c'), libcbor])
specific_virtio_ss.add(when: 'CONFIG_VIRTIO_MEM', if_true: files('virtio-mem.c'))
specific_virtio_ss.add(when: 'CONFIG_VHOST_USER_SCMI', if_true: files('vhost-user-scmi.c'))
specific_virtio_ss.add(when: ['CONFIG_VIRTIO_PCI', 'CONFIG_VHOST_USER_SCMI'], if_true: files('vhost-user-scmi-pci.c'))
@ -70,6 +71,7 @@ virtio_pci_ss.add(when: 'CONFIG_VIRTIO_CRYPTO', if_true: files('virtio-crypto-pc
virtio_pci_ss.add(when: 'CONFIG_VIRTIO_INPUT_HOST', if_true: files('virtio-input-host-pci.c'))
virtio_pci_ss.add(when: 'CONFIG_VIRTIO_INPUT', if_true: files('virtio-input-pci.c'))
virtio_pci_ss.add(when: 'CONFIG_VIRTIO_RNG', if_true: files('virtio-rng-pci.c'))
virtio_pci_ss.add(when: 'CONFIG_VIRTIO_NSM', if_true: [files('virtio-nsm-pci.c', 'cbor-helpers.c'), libcbor])
virtio_pci_ss.add(when: 'CONFIG_VIRTIO_BALLOON', if_true: files('virtio-balloon-pci.c'))
virtio_pci_ss.add(when: 'CONFIG_VIRTIO_9P', if_true: files('virtio-9p-pci.c'))
virtio_pci_ss.add(when: 'CONFIG_VIRTIO_SCSI', if_true: files('virtio-scsi-pci.c'))