TDX initialization fails on Ubuntu 25.04 with "reserved areas exhausted" (regression from issue #135) #415
Description
Same issue as #135 is occurring on Ubuntu 25.04 with kernel 6.14.0-1009-intel.
The CMR patches that fixed this for 24.04 appear to not be backported to the 25.04 kernel. Using the 24.04 kernel does not have this problem (initializes).
System:
- Ubuntu 25.04 (Plucky)
- Kernel: 6.14.0-1009-intel
- CPU: Intel Xeon 6747P (Granite Rapids)
- Server: HPE ProLiant DL380a Gen12
- TDX Module: 2.0.08.00
Error:
virt/tdx: initialization failed: TDMR [0x40000000, 0x80000000): reserved areas exhausted.
Git ref
1c9ca3964b617ed2be13b47869df7663c4bd8e5f
Operating system details
Distributor ID: Ubuntu
Description: Ubuntu 25.04
Release: 25.04
Codename: plucky
Kernel version
6.14.0-1009-intel #9-Ubuntu SMP PREEMPT_DYNAMIC Tue Nov 25 17:44:46 UTC 2025 x86_64 x86_64 GNU/Linux
TDX kernel logs
[ 10.620111] virt/tdx: BIOS enabled: private KeyID range [32, 64)
[ 10.620114] virt/tdx: Disable ACPI S3. Turn off TDX in the BIOS to use ACPI S3.
[ 31.518687] virt/tdx: TDX module 2.0.08.00, build number 882, build date 0134fed5
[ 33.250619] virt/tdx: initialization failed: TDMR [0x40000000, 0x80000000): reserved areas exhausted.
[ 33.341756] virt/tdx: module initialization failed (-28)
...
[ 10.620111] virt/tdx: BIOS enabled: private KeyID range [32, 64)
[ 10.620114] virt/tdx: Disable ACPI S3. Turn off TDX in the BIOS to use ACPI S3.
[ 31.518687] virt/tdx: TDX module 2.0.08.00, build number 882, build date 0134fed5
[ 33.250619] virt/tdx: initialization failed: TDMR [0x40000000, 0x80000000): reserved areas exhausted.
[ 33.341756] virt/tdx: module initialization failed (-28)
TDX CPU instruction support
CPU supports TDX according to /proc/cpuinfo
Model specific registers (MSRs)
MK_TME_ENABLED bit: 1 (expected value: 1)
SEAM_RR bit: 1 (expected value: 1)
NUM_TDX_PRIV_KEYS: 20
SGX_AND_MCHECK_STATUS: 0 (expected value: 0)
Production platform: Production (expected value: Production)
CPU details
Intel(R) Xeon(R) 6747P
QEMU package details
Status: Installed
Package: qemu-system-x86
Version: 1:9.2.1+ds-1ubuntu4+tdx2.0~ppa2
APT-Sources: https://ppa.launchpadcontent.net/kobuk-team/tdx/ubuntu plucky/main amd64 Packages
Libvirt package details
Status: Installed
Package: libvirt-clients
Version: 11.0.0-2ubuntu6+tdx2.0~ppa1
APT-Sources: https://ppa.launchpadcontent.net/kobuk-team/tdx/ubuntu plucky/main amd64 Packages
OVMF package details
Status: Installed
Package: ovmf
Version: 2025.02-3ubuntu2.2
APT-Sources: http://in.archive.ubuntu.com/ubuntu plucky-updates/main amd64 Packages
sgx-dcap-pccs package details
Status: Not Installed
tdx-qgs package details
Status: Not Installed
sgx-ra-service package details
Status: Not Installed
sgx-pck-id-retrieval-tool package details
Status: Not Installed
QGSD service status
Unit qgsd.service could not be found.
PCCS service status
Unit pccs.service could not be found.
MPA registration logs (last 30 lines)