3:50 a.m.
* 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.
To support TDX, multiple software components, not only KVM but also QEMU,
guest Linux and virtual bios, need to be updated. For more details, please
check link[1], there are TDX spec links and public repository link at github
for each software component.
This patchset is another software component to extend libvirt to support TDX,
with which one can start a VM from high level rather than running qemu directly.
* The goal of this RFC patch
The purpose of this post is to get feedback early on high level design issue of
libvirt enhancement for TDX. Referenced much on AMD SEV implemention at link[2].
* Patch organization
- patch 1-2: Support query of TDX capabilities.
- patch 3-6: Add a new xml element 'TrustDomain' for TDX support.
- patch 7: Sure kvmSupportsSecureGuest cache updated.
Using these patches we have succesfully booted and tested a guest both with and
without TDX enabled.
[1] https://lkml.org/lkml/2020/11/16/1106
[2] https://github.com/codomania/libvirt/commits/v9
Zhenzhong Duan (7):
qemu: provide support to query the TDX capabilities
conf: expose TDX feature in domain capabilities
conf: introduce TrustDomain element in domain
qemu: add support to launch TDX guest
qemu: add support to TDVF firmware loader
qemu: force special features enabled for TDX guest
qemu: Check if INTEL Trust Domain Extention support is enabled
docs/formatdomaincaps.html.in | 16 ++++
docs/schemas/domaincaps.rng | 9 ++
docs/schemas/domaincommon.rng | 19 ++++
src/conf/domain_capabilities.c | 22 +++++
src/conf/domain_capabilities.h | 11 +++
src/conf/domain_conf.c | 90 ++++++++++++++++++
src/conf/domain_conf.h | 16 ++++
src/conf/virconftypes.h | 2 +
src/libvirt_private.syms | 1 +
src/qemu/qemu_capabilities.c | 63 ++++++++++++
src/qemu/qemu_capabilities.h | 1 +
src/qemu/qemu_command.c | 39 ++++++++
src/qemu/qemu_monitor.c | 8 ++
src/qemu/qemu_monitor.h | 3 +
src/qemu/qemu_monitor_json.c | 53 +++++++++++
src/qemu/qemu_monitor_json.h | 3 +
src/qemu/qemu_validate.c | 14 +++
tests/domaincapsdata/bhyve_basic.x86_64.xml | 1 +
tests/domaincapsdata/bhyve_fbuf.x86_64.xml | 1 +
tests/domaincapsdata/bhyve_uefi.x86_64.xml | 1 +
tests/domaincapsdata/empty.xml | 1 +
tests/domaincapsdata/libxl-xenfv.xml | 1 +
tests/domaincapsdata/libxl-xenpv.xml | 1 +
.../domaincapsdata/qemu_2.11.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_2.11.0-tcg.x86_64.xml | 1 +
tests/domaincapsdata/qemu_2.11.0.s390x.xml | 1 +
tests/domaincapsdata/qemu_2.11.0.x86_64.xml | 1 +
.../domaincapsdata/qemu_2.12.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_2.12.0-tcg.x86_64.xml | 1 +
.../qemu_2.12.0-virt.aarch64.xml | 1 +
tests/domaincapsdata/qemu_2.12.0.aarch64.xml | 1 +
tests/domaincapsdata/qemu_2.12.0.ppc64.xml | 1 +
tests/domaincapsdata/qemu_2.12.0.s390x.xml | 1 +
tests/domaincapsdata/qemu_2.12.0.x86_64.xml | 1 +
.../domaincapsdata/qemu_2.4.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_2.4.0-tcg.x86_64.xml | 1 +
tests/domaincapsdata/qemu_2.4.0.x86_64.xml | 1 +
.../domaincapsdata/qemu_2.5.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_2.5.0-tcg.x86_64.xml | 1 +
tests/domaincapsdata/qemu_2.5.0.x86_64.xml | 1 +
.../domaincapsdata/qemu_2.6.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_2.6.0-tcg.x86_64.xml | 1 +
.../qemu_2.6.0-virt.aarch64.xml | 1 +
tests/domaincapsdata/qemu_2.6.0.aarch64.xml | 1 +
tests/domaincapsdata/qemu_2.6.0.ppc64.xml | 1 +
tests/domaincapsdata/qemu_2.6.0.x86_64.xml | 1 +
.../domaincapsdata/qemu_2.7.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_2.7.0-tcg.x86_64.xml | 1 +
tests/domaincapsdata/qemu_2.7.0.s390x.xml | 1 +
tests/domaincapsdata/qemu_2.7.0.x86_64.xml | 1 +
.../domaincapsdata/qemu_2.8.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_2.8.0-tcg.x86_64.xml | 1 +
tests/domaincapsdata/qemu_2.8.0.s390x.xml | 1 +
tests/domaincapsdata/qemu_2.8.0.x86_64.xml | 1 +
.../domaincapsdata/qemu_2.9.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_2.9.0-tcg.x86_64.xml | 1 +
tests/domaincapsdata/qemu_2.9.0.ppc64.xml | 1 +
tests/domaincapsdata/qemu_2.9.0.s390x.xml | 1 +
tests/domaincapsdata/qemu_2.9.0.x86_64.xml | 1 +
.../domaincapsdata/qemu_3.0.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_3.0.0-tcg.x86_64.xml | 1 +
tests/domaincapsdata/qemu_3.0.0.ppc64.xml | 1 +
tests/domaincapsdata/qemu_3.0.0.s390x.xml | 1 +
tests/domaincapsdata/qemu_3.0.0.x86_64.xml | 1 +
.../domaincapsdata/qemu_3.1.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_3.1.0-tcg.x86_64.xml | 1 +
tests/domaincapsdata/qemu_3.1.0.ppc64.xml | 1 +
tests/domaincapsdata/qemu_3.1.0.x86_64.xml | 1 +
.../domaincapsdata/qemu_4.0.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_4.0.0-tcg.x86_64.xml | 1 +
.../qemu_4.0.0-virt.aarch64.xml | 1 +
tests/domaincapsdata/qemu_4.0.0.aarch64.xml | 1 +
tests/domaincapsdata/qemu_4.0.0.ppc64.xml | 1 +
tests/domaincapsdata/qemu_4.0.0.s390x.xml | 1 +
tests/domaincapsdata/qemu_4.0.0.x86_64.xml | 1 +
.../domaincapsdata/qemu_4.1.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_4.1.0-tcg.x86_64.xml | 1 +
tests/domaincapsdata/qemu_4.1.0.x86_64.xml | 1 +
.../domaincapsdata/qemu_4.2.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_4.2.0-tcg.x86_64.xml | 1 +
.../qemu_4.2.0-virt.aarch64.xml | 1 +
tests/domaincapsdata/qemu_4.2.0.aarch64.xml | 1 +
tests/domaincapsdata/qemu_4.2.0.ppc64.xml | 1 +
tests/domaincapsdata/qemu_4.2.0.s390x.xml | 1 +
tests/domaincapsdata/qemu_4.2.0.x86_64.xml | 1 +
.../domaincapsdata/qemu_5.0.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_5.0.0-tcg.x86_64.xml | 1 +
.../qemu_5.0.0-virt.aarch64.xml | 1 +
tests/domaincapsdata/qemu_5.0.0.aarch64.xml | 1 +
tests/domaincapsdata/qemu_5.0.0.ppc64.xml | 1 +
tests/domaincapsdata/qemu_5.0.0.x86_64.xml | 1 +
.../domaincapsdata/qemu_5.1.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_5.1.0-tcg.x86_64.xml | 1 +
tests/domaincapsdata/qemu_5.1.0.sparc.xml | 1 +
tests/domaincapsdata/qemu_5.1.0.x86_64.xml | 1 +
.../domaincapsdata/qemu_5.2.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_5.2.0-tcg.x86_64.xml | 1 +
.../qemu_5.2.0-virt.aarch64.xml | 1 +
tests/domaincapsdata/qemu_5.2.0.aarch64.xml | 1 +
tests/domaincapsdata/qemu_5.2.0.ppc64.xml | 1 +
tests/domaincapsdata/qemu_5.2.0.s390x.xml | 1 +
tests/domaincapsdata/qemu_5.2.0.x86_64.xml | 1 +
.../domaincapsdata/qemu_6.0.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_6.0.0-tcg.x86_64.xml | 1 +
tests/domaincapsdata/qemu_6.0.0.s390x.xml | 1 +
tests/domaincapsdata/qemu_6.0.0.x86_64.xml | 1 +
.../domaincapsdata/qemu_6.1.0-q35.x86_64.xml | 1 +
.../domaincapsdata/qemu_6.1.0-tcg.x86_64.xml | 1 +
tests/domaincapsdata/qemu_6.1.0.x86_64.xml | 1 +
.../genericxml2xmlindata/trust-domain-tdx.xml | 22 +++++
tests/genericxml2xmltest.c | 1 +
.../.trust-domain-tdx.xml.swo | Bin 0 -> 12288 bytes
tests/qemuxml2argvdata/trust-domain-tdx.args | 32 +++++++
tests/qemuxml2argvdata/trust-domain-tdx.xml | 37 +++++++
tests/qemuxml2argvtest.c | 3 +
115 files changed, 557 insertions(+)
create mode 100644 tests/genericxml2xmlindata/trust-domain-tdx.xml
create mode 100644 tests/qemuxml2argvdata/.trust-domain-tdx.xml.swo
create mode 100644 tests/qemuxml2argvdata/trust-domain-tdx.args
create mode 100644 tests/qemuxml2argvdata/trust-domain-tdx.xml
--
2.25.1