afc_rich

@mavrrick I am running ROG-STRIX-X570-E-GAMING-ASUS-4403. Prior to this I was running a version 4-5 iterations back with the same issue.

More info on CentOS.... [root@centos /]# sudo virt-host-validate QEMU: Checking for hardware virtualization : PASS QEMU: Checking if device /dev/kvm exists : PASS QEMU: Checking if device /dev/kvm is accessible : PASS QEMU: Checking if device /dev/vhost-net exists : PASS QEMU: Checking if device /dev/net/tun exists : PASS QEMU: Checking for cgroup 'memory' controller support : PASS QEMU: Checking for cgroup 'memory' controller mount-point : PASS QEMU: Checking for cgroup 'cpu' controller support : PASS QEMU: Checking for cgroup 'cpu' controller mount-point : PASS QEMU: Checking for cgroup 'cpuacct' controller support : PASS QEMU: Checking for cgroup 'cpuacct' controller mount-point : PASS QEMU: Checking for cgroup 'cpuset' controller support : PASS QEMU: Checking for cgroup 'cpuset' controller mount-point : PASS QEMU: Checking for cgroup 'devices' controller support : PASS QEMU: Checking for cgroup 'devices' controller mount-point : PASS QEMU: Checking for cgroup 'blkio' controller support : PASS QEMU: Checking for cgroup 'blkio' controller mount-point : PASS QEMU: Checking for device assignment IOMMU support : WARN (No ACPI IVRS table found, IOMMU either disabled in BIOS or not supported by this hardware platform) LXC: Checking for Linux >= 2.6.26 : PASS LXC: Checking for namespace ipc : PASS LXC: Checking for namespace mnt : PASS LXC: Checking for namespace pid : PASS LXC: Checking for namespace uts : PASS LXC: Checking for namespace net : PASS LXC: Checking for namespace user : PASS LXC: Checking for cgroup 'memory' controller support : PASS LXC: Checking for cgroup 'memory' controller mount-point : PASS LXC: Checking for cgroup 'cpu' controller support : PASS LXC: Checking for cgroup 'cpu' controller mount-point : PASS LXC: Checking for cgroup 'cpuacct' controller support : PASS LXC: Checking for cgroup 'cpuacct' controller mount-point : PASS LXC: Checking for cgroup 'cpuset' controller support : PASS LXC: Checking for cgroup 'cpuset' controller mount-point : PASS LXC: Checking for cgroup 'devices' controller support : PASS LXC: Checking for cgroup 'devices' controller mount-point : PASS LXC: Checking for cgroup 'blkio' controller support : PASS LXC: Checking for cgroup 'blkio' controller mount-point : PASS LXC: Checking if device /sys/fs/fuse/connections exists : FAIL (Load the 'fuse' module to enable /proc/ overrides) Could it possibly be IOMMU detection causing the issue? I haven't attempted to pass through any devices.

Further update.... I have built a CentOS 7.8 VM and have looked at the contents of /proc/cpuinfo: The output is below: processor : 0 vendor_id : AuthenticAMD cpu family : 25 model : 33 model name : AMD Ryzen 9 5950X 16-Core Processor stepping : 0 microcode : 0xa201016 cpu MHz : 3393.622 cache size : 512 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 16 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm art rep_good nopl extd_apicid eagerfpu pni pclmulqdq ssse3 fma cx16 sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm cmp_legacy svm cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw topoext perfctr_core retpoline_amd ssbd ibrs ibpb stibp vmmcall fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 clzero xsaveerptr arat npt lbrv nrip_save tsc_scale vmcb_clean pausefilter pfthreshold v_vmsave_vmload vgif umip pku ospke vaes vpclmulqdq spec_ctrl intel_stibp arch_capabilities bogomips : 6787.24 TLB size : 2560 4K pages clflush size : 64 cache_alignment : 64 address sizes : 48 bits physical, 48 bits virtual power management: As you can see, the SVM flag (along with many others) is being passed through to the VM. I'm going to dive deeper to see if there are any other flags that are potentially missing causing the errors in ESXi.

You have the same hardware as I do. Ryzen 5950x with ROG Strix board. I performed same tests as you did above: ESXi 6.7 - |----HV Support .....................................................3 ESXi 7.0 - |----HV Support .....................................................3 ESXi 8.0 - |----HV Support .....................................................1 Interesting that the result is different for ESXi 8.0 🤔 XML output for CPU is: <cpu mode='host-passthrough' check='none' migratable='on'> <topology sockets='1' dies='1' cores='2' threads='2'/> <cache mode='passthrough'/> <feature policy='require' name='topoext'/> </cpu> I have attempted to change the CPU mode and also the features to no avail thus far. Next step is to configure a linux vm to do further tests on the CPU flags. Fingers crossed I can find one that is missing and narrow the search down.

Have you managed to get any further with this? I am in the same boat, whereby I am unable to start any vms inside of ESXi. When checking the vmkernel.log I can see entries containing the same error "vcpu-0:Invalid VMCB" I have following set up for ESXi guest: AMD Ryzen 9 Processor passthrough Q35-7.1 OVMF 16GB RAM SATA Disks Running unraid 6.11.3, the Nested flag is set to 1 via user script (spaceinvader) - I have also checked /sys/module/kvm_amd/parameters/nested and the flag is set. I will continue to have a look myself and update here with any findings. EDIT: esxcfg-info | grep "HV Support" reports back "3" (3VT-x / AMD-V is enabled in the BIOS and can be used. ). So AMD-V is getting passed through to the ESXi guest VM.