4:45 a.m.
Hi,
This series brings libvirt the x86 TDX support.
* What's TDX?
TDX stands for Trust Domain Extensions which isolates VMs from
the virtual-machine manager (VMM)/hypervisor and any other software on
the platform.
This patchset extends libvirt to support TDX, with which one can start a TDX
guest from high level rather than running qemu directly.
* Misc
As QEMU use a software emulated way to reset guest which isn't supported by TDX
guest for security reason. We simulate reboot for TDX guest by kill and create a
new one in FakeReboot framework.
Complete code can be found at [1].
* Test
Tested with upstream qemu v10.0.0-1724-gf9a3def17b
shutdown/reboot/reset with virsh
shutdown/reboot trigger in guest
shutdown with on_poweroff=destroy/restart
reboot with on_reboot=destroy/restart
* Patch organization
- patch 1-4: Support query of TDX capabilities
- patch 5-11: Add TDX type to launchsecurity framework
- patch 12-17: Add reboot/reset support to TDX guest
- patch 18-20: Add test data/cases
- patch 21: Add docs
TODO:
- add reconnect logic in virsh command
[1] https://github.com/intel/libvirt-tdx/commits/tdx_for_upstream_v2
Thanks
Zhenzhong
Changelog:
v2:
- add capability and xmlconf test (Peter Krempa)
v1:
- s/virQEMUCapsKVMSupportsSecureGuestINTEL/virQEMUCapsKVMSupportsSecureGuestTDX (Daniel)
- make policy element optional and expose to QEMU directly (Daniel)
- s/qemuProcessSecFakeReboot/qemuProcessFakeRebootViaRecreate (Daniel)
- simplify QGS element schema by supporting only UNIX socket (Daniel)
- add new events VIR_DOMAIN_EVENT_[STOPPED|STARTED] for control plane (Daniel)
- s/quoteGenerationService/quoteGenerationSocket as QEMU
- add virsh reset support
rfcv4:
- add a check to tools/virt-host-validate-qemu.c (Daniel)
- remove check of q35 (Daniel)
- model 'SocktetAddress' QAPI in xml schema (Daniel)
- s/Quote-Generation-Service/quoteGenerationService/ (Daniel)
- define bits in tdx->policy and add validating logic (Daniel)
- presume QEMU choose split kernel irqchip for TDX guest by default (Daniel)
- utilize existing FakeReboot framework to do reboot for TDX guest (Daniel)
- drop patch11 'conf: Add support to keep same domid for hard reboot' (Daniel)
- add test in tests/ to validate parsing and formatting logic (Daniel)
- add doc in docs/formatdomain.rst (Daniel)
- add R-B
rfcv3:
- Change to generate qemu cmdline with -bios
- drop firmware auto match as -bios is used
- add a hard reboot method to reboot TDX guest
rfcv3: https://www.mail-archive.com/devel@lists.libvirt.org/msg00385.html
rfcv2:
- give up using qmp cmd and check TDX directly on host for TDX capabilities.
- use launchsecurity framework to support TDX
- use <os>.<loader> for general loader
- add auto firmware match feature for TDX
A example TDVF fimware description file 70-edk2-x86_64-tdx.json:
{
"description": "UEFI firmware for x86_64, supporting Intel TDX",
"interface-types": [
"uefi"
],
"mapping": {
"device": "generic",
"filename": "/usr/share/OVMF/OVMF_CODE-tdx.fd"
},
"targets": [
{
"architecture": "x86_64",
"machines": [
"pc-q35-*"
]
}
],
"features": [
"intel-tdx",
"verbose-dynamic"
],
"tags": [
]
}
rfcv2: https://www.mail-archive.com/libvir-list@redhat.com/msg219378.html
Zhenzhong Duan (21):
tools: Secure guest check for Intel in virt-host-validate
qemu: Check if INTEL Trust Domain Extention support is enabled
qemu: Add TDX capability
conf: Expose TDX feature in domain capabilities
conf: Add tdx as launch security type
conf: Validate TDX launchSecurity element
mrConfigId/mrOwner/mrOwnerConfig
qemu: Add command line and validation for TDX type
conf: Expose TDX type in domain launch security capability
qemu: Force special parameters enabled for TDX guest
conf: Add Intel TDX Quote Generation Service(QGS) support
qemu: Add command line for TDX Quote Generation Service(QGS)
qemu: Add FakeReboot support for TDX guest
qemu: Support reboot command in guest
qemu: Avoid duplicate FakeReboot for secure guest
qemu: Send event VIR_DOMAIN_EVENT_[STOPPED|STARTED] during recreation
qemu: Bypass sending VIR_DOMAIN_EVENT_RESUMED event when TD VM reboot
qemu: Support domain reset command for TDX guest
qemucapabilitiesdata: Document '+inteltdx' variant
qemucapabilitiestest: Add data for the qemu-11.0 dev cycle on x86_64
for the '+inteltdx' variant
qemuxmlconftest: Add latest version of 'launch-security-tdx*' test
data
docs: domain: Add documentation for Intel TDX guest
docs/formatdomain.rst | 63 +
docs/formatdomaincaps.rst | 1 +
examples/c/misc/event-test.c | 6 +
include/libvirt/libvirt-domain.h | 2 +
src/conf/domain_capabilities.c | 1 +
src/conf/domain_capabilities.h | 1 +
src/conf/domain_conf.c | 82 +
src/conf/domain_conf.h | 21 +
src/conf/domain_validate.c | 11 +
src/conf/schemas/domaincaps.rng | 9 +
src/conf/schemas/domaincommon.rng | 41 +
src/conf/virconftypes.h | 2 +
src/qemu/qemu_capabilities.c | 38 +-
src/qemu/qemu_capabilities.h | 1 +
src/qemu/qemu_cgroup.c | 1 +
src/qemu/qemu_command.c | 54 +
src/qemu/qemu_driver.c | 7 +
src/qemu/qemu_firmware.c | 1 +
src/qemu/qemu_monitor.c | 28 +-
src/qemu/qemu_monitor.h | 2 +-
src/qemu/qemu_monitor_json.c | 6 +-
src/qemu/qemu_namespace.c | 1 +
src/qemu/qemu_process.c | 104 +-
src/qemu/qemu_process.h | 2 +
src/qemu/qemu_validate.c | 45 +
src/security/security_dac.c | 2 +
.../qemu_11.0.0-q35.x86_64+inteltdx.xml | 782 +
.../qemu_11.0.0-tcg.x86_64+inteltdx.xml | 1830 +
.../qemu_11.0.0.x86_64+inteltdx.xml | 782 +
tests/qemucapabilitiesdata/README.rst | 5 +
.../caps_11.0.0_x86_64+inteltdx.replies | 44552 ++++++++++++++++
.../caps_11.0.0_x86_64+inteltdx.xml | 3585 ++
.../caps.x86_64+inteltdx.xml | 29 +
...h-security-tdx.x86_64-latest+inteltdx.args | 44 +
...ch-security-tdx.x86_64-latest+inteltdx.xml | 74 +
tests/qemuxmlconfdata/launch-security-tdx.xml | 27 +
tests/qemuxmlconftest.c | 3 +
tools/virsh-domain-event.c | 6 +-
tools/virt-host-validate-common.c | 31 +-
tools/virt-host-validate-common.h | 1 +
40 files changed, 52270 insertions(+), 13 deletions(-)
create mode 100644 tests/domaincapsdata/qemu_11.0.0-q35.x86_64+inteltdx.xml
create mode 100644 tests/domaincapsdata/qemu_11.0.0-tcg.x86_64+inteltdx.xml
create mode 100644 tests/domaincapsdata/qemu_11.0.0.x86_64+inteltdx.xml
create mode 100644 tests/qemucapabilitiesdata/caps_11.0.0_x86_64+inteltdx.replies
create mode 100644 tests/qemucapabilitiesdata/caps_11.0.0_x86_64+inteltdx.xml
create mode 100644 tests/qemucaps2xmloutdata/caps.x86_64+inteltdx.xml
create mode 100644 tests/qemuxmlconfdata/launch-security-tdx.x86_64-latest+inteltdx.args
create mode 100644 tests/qemuxmlconfdata/launch-security-tdx.x86_64-latest+inteltdx.xml
create mode 100644 tests/qemuxmlconfdata/launch-security-tdx.xml
--
2.34.1