On Fri, May 24, 2024 at 02:21:20PM +0800, Zhenzhong Duan wrote:
When 'tdx' is used, the VM will launched with Intel TDX
feature enabled.
TDX feature supports running encrypted VM (Trust Domain, TD) under the
control of KVM. A TD runs in a CPU model which protects the
confidentiality of its memory and its CPU state from other software
There is a child element 'policy' and three optional element for tdx type.
In 'policy', bit 0 is set to enable TDX debug, bit 28 set to enable
sept-ve-disable, other bits are reserved currently. mrConfigId, mrOwner
and mrOwnerConfig are base64 encoded SHA384 digest.
For example:
<launchSecurity type='tdx'>
<policy>0x10000001</policy>
<mrConfigId>xxx</mrConfigId>
<mrOwner>xxx</mrOwner>
<mrOwnerConfig>xxx</mrOwnerConfig>
</launchSecurity>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan(a)intel.com>
---
src/conf/domain_conf.c | 42 +++++++++++++++++++++++++++++++
src/conf/domain_conf.h | 9 +++++++
src/conf/schemas/domaincommon.rng | 29 +++++++++++++++++++++
src/conf/virconftypes.h | 2 ++
src/qemu/qemu_command.c | 2 ++
src/qemu/qemu_firmware.c | 1 +
src/qemu/qemu_namespace.c | 1 +
src/qemu/qemu_process.c | 1 +
src/qemu/qemu_validate.c | 1 +
9 files changed, 88 insertions(+)
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index a0912062ff..c557da0c65 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -1508,6 +1508,7 @@ VIR_ENUM_IMPL(virDomainLaunchSecurity,
"",
"sev",
"s390-pv",
+ "tdx",
);
typedef enum {
@@ -3832,6 +3833,10 @@ virDomainSecDefFree(virDomainSecDef *def)
g_free(def->data.sev.dh_cert);
g_free(def->data.sev.session);
break;
+ case VIR_DOMAIN_LAUNCH_SECURITY_TDX:
+ g_free(def->data.tdx.mrconfigid);
+ g_free(def->data.tdx.mrowner);
+ g_free(def->data.tdx.mrownerconfig);
Missing 'break' here. I'm surprised the compiler didn't complain,
as we have warning flags set to require explicit marking of case
fallthroughs.
case VIR_DOMAIN_LAUNCH_SECURITY_PV:
case VIR_DOMAIN_LAUNCH_SECURITY_NONE:
case VIR_DOMAIN_LAUNCH_SECURITY_LAST:
With regards,
Daniel
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