我的硬件配置如下：
- 处理器：AMD FX-8120（赞比西河）
- 主板：华硕 M5A88-M
- 操作系统：Windows 8.1
- 内存：4GB DDR3
我安装了 Genymotion，它为 Android 创建了一个虚拟机。但是，每当我尝试启动机器时，它都显示只能使用一个 CPU，因为硬件虚拟化不可用。
这是 Virtualbox 的屏幕截图
我认为此 CPU 和主板支持硬件虚拟化。我是否遗漏了任何设置？
如何让 VirtualBox 使用更多的 CPU？
更新：
这是 coreinfo 的输出
AMD FX(tm)-8120 Eight-Core Processor
AMD64 Family 21 Model 1 Stepping 2, AuthenticAMD
Microcode signature: 06000629
HTT * Multicore
HYPERVISOR * Hypervisor is present
VMX - Supports Intel hardware-assisted virtualization
SVM - Supports AMD hardware-assisted virtualization
X64 * Supports 64-bit mode
SMX - Supports Intel trusted execution
SKINIT - Supports AMD SKINIT
NX * Supports no-execute page protection
SMEP - Supports Supervisor Mode Execution Prevention
SMAP - Supports Supervisor Mode Access Prevention
PAGE1GB - Supports 1 GB large pages
PAE * Supports > 32-bit physical addresses
PAT * Supports Page Attribute Table
PSE * Supports 4 MB pages
PSE36 * Supports > 32-bit address 4 MB pages
PGE * Supports global bit in page tables
SS - Supports bus snooping for cache operations
VME * Supports Virtual-8086 mode
RDWRFSGSBASE - Supports direct GS/FS base access
FPU * Implements i387 floating point instructions
MMX * Supports MMX instruction set
MMXEXT * Implements AMD MMX extensions
3DNOW - Supports 3DNow! instructions
3DNOWEXT - Supports 3DNow! extension instructions
SSE * Supports Streaming SIMD Extensions
SSE2 * Supports Streaming SIMD Extensions 2
SSE3 * Supports Streaming SIMD Extensions 3
SSSE3 * Supports Supplemental SIMD Extensions 3
SSE4a * Supports Streaming SIMDR Extensions 4a
SSE4.1 * Supports Streaming SIMD Extensions 4.1
SSE4.2 * Supports Streaming SIMD Extensions 4.2
AES * Supports AES extensions
AVX * Supports AVX intruction extensions
FMA - Supports FMA extensions using YMM state
MSR * Implements RDMSR/WRMSR instructions
MTRR * Supports Memory Type Range Registers
XSAVE * Supports XSAVE/XRSTOR instructions
OSXSAVE * Supports XSETBV/XGETBV instructions
RDRAND - Supports RDRAND instruction
RDSEED - Supports RDSEED instruction
CMOV * Supports CMOVcc instruction
CLFSH * Supports CLFLUSH instruction
CX8 * Supports compare and exchange 8-byte instructions
CX16 * Supports CMPXCHG16B instruction
BMI1 - Supports bit manipulation extensions 1
BMI2 - Supports bit manipulation extensions 2
ADX - Supports ADCX/ADOX instructions
DCA - Supports prefetch from memory-mapped device
F16C - Supports half-precision instruction
FXSR * Supports FXSAVE/FXSTOR instructions
FFXSR * Supports optimized FXSAVE/FSRSTOR instruction
MONITOR - Supports MONITOR and MWAIT instructions
MOVBE - Supports MOVBE instruction
ERMSB - Supports Enhanced REP MOVSB/STOSB
PCLMULDQ * Supports PCLMULDQ instruction
POPCNT * Supports POPCNT instruction
LZCNT * Supports LZCNT instruction
SEP * Supports fast system call instructions
LAHF-SAHF * Supports LAHF/SAHF instructions in 64-bit mode
HLE - Supports Hardware Lock Elision instructions
RTM - Supports Restricted Transactional Memory instructions
DE * Supports I/O breakpoints including CR4.DE
DTES64 - Can write history of 64-bit branch addresses
DS - Implements memory-resident debug buffer
DS-CPL - Supports Debug Store feature with CPL
PCID - Supports PCIDs and settable CR4.PCIDE
INVPCID - Supports INVPCID instruction
PDCM - Supports Performance Capabilities MSR
RDTSCP * Supports RDTSCP instruction
TSC * Supports RDTSC instruction
TSC-DEADLINE - Local APIC supports one-shot deadline timer
TSC-INVARIANT * TSC runs at constant rate
xTPR - Supports disabling task priority messages
EIST - Supports Enhanced Intel Speedstep
ACPI - Implements MSR for power management
TM - Implements thermal monitor circuitry
TM2 - Implements Thermal Monitor 2 control
APIC * Implements software-accessible local APIC
x2APIC - Supports x2APIC
CNXT-ID - L1 data cache mode adaptive or BIOS
MCE * Supports Machine Check, INT18 and CR4.MCE
MCA * Implements Machine Check Architecture
PBE - Supports use of FERR#/PBE# pin
PSN - Implements 96-bit processor serial number
PREFETCHW * Supports PREFETCHW instruction
Maximum implemented CPUID leaves: 0000000D (Basic), 8000001E (Extended).
Logical to Physical Processor Map:
**------ Physical Processor 0 (Hyperthreaded)
--**---- Physical Processor 1 (Hyperthreaded)
----**-- Physical Processor 2 (Hyperthreaded)
------** Physical Processor 3 (Hyperthreaded)
Logical Processor to Socket Map:
******** Socket 0
Logical Processor to NUMA Node Map:
******** NUMA Node 0
No NUMA nodes.
Logical Processor to Cache Map:
*------- Data Cache 0, Level 1, 16 KB, Assoc 4, LineSize 64
**------ Instruction Cache 0, Level 1, 64 KB, Assoc 2, LineSize 64
**------ Unified Cache 0, Level 2, 2 MB, Assoc 16, LineSize 64
******** Unified Cache 1, Level 3, 8 MB, Assoc 64, LineSize 64
-*------ Data Cache 1, Level 1, 16 KB, Assoc 4, LineSize 64
--*----- Data Cache 2, Level 1, 16 KB, Assoc 4, LineSize 64
--**---- Instruction Cache 1, Level 1, 64 KB, Assoc 2, LineSize 64
--**---- Unified Cache 2, Level 2, 2 MB, Assoc 16, LineSize 64
---*---- Data Cache 3, Level 1, 16 KB, Assoc 4, LineSize 64
----*--- Data Cache 4, Level 1, 16 KB, Assoc 4, LineSize 64
----**-- Instruction Cache 2, Level 1, 64 KB, Assoc 2, LineSize 64
----**-- Unified Cache 3, Level 2, 2 MB, Assoc 16, LineSize 64
-----*-- Data Cache 5, Level 1, 16 KB, Assoc 4, LineSize 64
------*- Data Cache 6, Level 1, 16 KB, Assoc 4, LineSize 64
------** Instruction Cache 3, Level 1, 64 KB, Assoc 2, LineSize 64
------** Unified Cache 4, Level 2, 2 MB, Assoc 16, LineSize 64
-------* Data Cache 7, Level 1, 16 KB, Assoc 4, LineSize 64
Logical Processor to Group Map:
******** Group 0
答案1
根据规格，该处理器特别支持 AMD-V，但上面 Coreinfo 的输出显示它不支持。
由于您已经检查了 BIOS 中的虚拟化选项，请尝试将 BIOS 刷新到较新的版本。我查看了华硕的网站，上面说主板仅支持 BIOS 修订版 0801 或更高版本的 FX-8120。检查您的修订版。您当前的 BIOS 可能不完全支持该处理器型号。
答案2
我终于找到了解决方案，但它有点奇怪。
正如 Hennes 在评论中所建议的，必须解决“安全虚拟机模式”选项。这里真正的难点是我必须禁用该选项。在安全虚拟机模式下，此 BIOS 只允许为虚拟机分配一个 CPU。禁用该选项后，我可以分配更多 CPU。
我不确定这是否是处理该问题的正确方法。但是它启用了滑块，我可以分配更多 CPU，但我不确定这是否是正确的方法。有关此问题的建议/更多详细信息对我和其他人都非常有用。