Hi, all. This patch adds Arm CCA support to qemu driver for aarch64 system. CCA is an abbreviation for Arm Confidential Compute Architecture feature, it enhances the virtualization capabilities of the platform by separating the management of resources from access to those resources. We are not yet at the stage where we can merge this patch as host linux/qemu suppor is no yet merged, but I would like to receive reviews and comments on the overall direction. [summary] At this stage, all you can do is getting the CCA capability with the virsh domcapabilities command and start the CCA VM with the virsh create command. capability info uses qemu QMP to query qemu options. The option that exists now is for selecting a hash algorithm. qemu QMP sections currently only contains a single member, but is wrapped in sections for expansion. [Capability example] Execution results of 'virsh domcapability" on qemu <domaincapabilities> ... <features> ... </sgx> <cca supported='yes'> <enum name='measurement-algo'> <value>sha256</value> <value>sha512</value> </enum> </cca> <hyperv supported='yes'> ... </features> </domaincapabilities> [XML example] <domain> ... <launchsecurity type='cca'> <measurement-algo>sha256</measurement-algo> </launchsecurity> ... </domain> [limitations/tests] To obtain capability info, it is necessary to support the qemu QMP command, which qemu does not yet support. We added a QMP command to retrieve CCA info for test (See "[software version]" below). Also, I think we should check whether CPUFW supports CCA or not in qemu_firmware.c, but it is not yet implemented. We have confirmed that the added tests (qemucapabilitiestest, domaincapstest and qemuxmlconftest) and the CCA VM startup test (starting the CCA VM from the virsh create command) passed. The "personalization-value" and "measurement-log" parameters that exist in the current LinaroQEMU cca/v3 branch will not be specified as CCA VM startup parameters with the virsh create command. [software version] I followed the steps in Linaro's blog below. https://linaro.atlassian.net/wiki/spaces/QEMU/pages/29051027459/Building+an+... The Qemu used was enhanced with CCA QMP command and found at: https://github.com/Kazuhiro-Abe-fj/linaro_qemu/tree/cca-qmp which is based on Linaro QEMU (cca/v3) https://git.codelinaro.org/linaro/dcap/qemu/-/tree/cca/v3?ref_type=heads Changes in v2: Split the patch into different features. Fixed two string memory leaks. String storage has been changed from pointer movement to memory copying, preventing double freeing. Added a test case to qemuconftest. Fixed an issue where communication with QMP did not work properly. Fixed an issue where <cca support="yes"> was output to the cache file when using virsh with a qemu binary that does not support QMP. RFC v1: https://lists.libvirt.org/archives/list/devel@lists.libvirt.org/thread/V4S56... Signed-off-by: Akio Kakuno fj3333bs@fujitsu.com Akio Kakuno (6): src: Add ARM CCA support in qemu driver to launch VM src: Add ARM CCA support in domain capabilities command src: Add ARM CCA support in domain schema qemucapabilitiestest: Adds Arm CCA support domaincapstest: Adds Arm CCA support qemuxmlconftest: Adds Arm CCA support docs/formatdomain.rst | 28 + docs/formatdomaincaps.rst | 27 +- src/conf/domain_capabilities.c | 48 + src/conf/domain_capabilities.h | 12 + src/conf/domain_conf.c | 16 + src/conf/domain_conf.h | 7 + src/conf/domain_validate.c | 1 + src/conf/schemas/domaincaps.rng | 14 + src/conf/schemas/domaincommon.rng | 14 + src/conf/virconftypes.h | 2 + src/libvirt_private.syms | 1 + src/qemu/qemu_capabilities.c | 145 + src/qemu/qemu_capabilities.h | 4 + src/qemu/qemu_cgroup.c | 2 + src/qemu/qemu_command.c | 32 + src/qemu/qemu_driver.c | 2 + src/qemu/qemu_firmware.c | 1 + src/qemu/qemu_monitor.c | 10 + src/qemu/qemu_monitor.h | 3 + src/qemu/qemu_monitor_json.c | 98 + src/qemu/qemu_monitor_json.h | 4 + src/qemu/qemu_namespace.c | 2 + src/qemu/qemu_process.c | 4 + src/qemu/qemu_validate.c | 4 + src/security/security_dac.c | 2 + .../qemu_9.1.0-virt.aarch64.xml | 243 + tests/domaincapsdata/qemu_9.1.0.aarch64.xml | 243 + .../caps_9.1.0_aarch64.replies | 36222 ++++++++++++++++ .../caps_9.1.0_aarch64.xml | 540 + .../launch-security-cca.aarch64-latest.args | 30 + .../launch-security-cca.aarch64-latest.xml | 24 + tests/qemuxmlconfdata/launch-security-cca.xml | 16 + tests/qemuxmlconftest.c | 2 + 33 files changed, 37802 insertions(+), 1 deletion(-) create mode 100644 tests/domaincapsdata/qemu_9.1.0-virt.aarch64.xml create mode 100644 tests/domaincapsdata/qemu_9.1.0.aarch64.xml create mode 100644 tests/qemucapabilitiesdata/caps_9.1.0_aarch64.replies create mode 100644 tests/qemucapabilitiesdata/caps_9.1.0_aarch64.xml create mode 100644 tests/qemuxmlconfdata/launch-security-cca.aarch64-latest.args create mode 100644 tests/qemuxmlconfdata/launch-security-cca.aarch64-latest.xml create mode 100644 tests/qemuxmlconfdata/launch-security-cca.xml -- 2.34.1