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CONFIG_KVM_AMD_SEV=y
CONFIG_AMD_MEM_ENCRYPT=y
# CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT is not set

user01@jupiter-host-linux:~/Desktop$ cat /sys/kernel/tsme
cat: /sys/kernel/tsme: No such file or directory
user01@jupiter-host-linux:~/Desktop$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-5.8.0-43-generic root=UUID=bdc629dd-7428-411c-a3e6-820918ed93f7 ro quiet splash mem_encrypt=on kvm_amd.sev=1 vt.handoff=7
user01@jupiter-host-linux:~/Desktop$

   AMD Secure Encryption (0x8000001f):
      SME: secure memory encryption support    = true
      SEV: secure encrypted virtualize support = true
      VM page flush MSR support                = true
      SEV-ES: SEV encrypted state support      = true
      encryption bit position in PTE           = 0x33 (51)
      physical address space width reduction   = 0x5 (5)
      number of SEV-enabled guests supported   = 0x1fd (509)
      minimum SEV guest ASID                   = 0x1 (1)

cpuinfo output:
Processor	: 30
vendor_id	: AuthenticAMD
cpu family	: 25
model		: 33
model name	: AMD Ryzen 9 5950X 16-Core Processor
stepping	: 0
microcode	: 0xa201009
cpu MHz		: 2495.628
cache size	: 512 KB
physical id	: 0
siblings	: 32
core id		: 14
cpu cores	: 16
apicid		: 29
initial apicid	: 29
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 constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pstate ssbd mba ibrs ibpb stibp vmmcall fsgsbase bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local clzero irperf xsaveerptr rdpru wbnoinvd arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif umip pku ospke vaes vpclmulqdq rdpid overflow_recov succor smca fsrm
bugs		: sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass
bogomips	: 6799.90
TLB size	: 2560 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm hwpstate cpb eff_freq_ro [13] [14]

processor	: 31
vendor_id	: AuthenticAMD
cpu family	: 25
model		: 33
model name	: AMD Ryzen 9 5950X 16-Core Processor
stepping	: 0
microcode	: 0xa201009
cpu MHz		: 2200.260
cache size	: 512 KB
physical id	: 0
siblings	: 32
core id		: 15
cpu cores	: 16
apicid		: 31
initial apicid	: 31
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 constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pstate ssbd mba ibrs ibpb stibp vmmcall fsgsbase bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local clzero irperf xsaveerptr rdpru wbnoinvd arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif umip pku ospke vaes vpclmulqdq rdpid overflow_recov succor smca fsrm
bugs		: sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass
bogomips	: 6799.90
TLB size	: 2560 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm hwpstate cpb eff_freq_ro [13] [14]