虚拟机无法开启iommu

N个酸柠檬

[i=s] 本帖最后由 N个酸柠檬 于 2025-3-11 19:26 编辑 [/i]<br /> <br />

nas配置如下：

CPU英特尔官网显示支持vt-d，但是我根据教程更改了配置文件后重启依然显示未开启

下面是我改的配置文件：

GRUB_DEFAULT=0 GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR=lsb_release -i -s 2> /dev/null || echo Debian GRUB_CMDLINE_LINUX_DEFAULT=”quiet i915.force_probe=7d55 intel_iommu=on iommu=pt" GRUB_CMDLINE_LINUX="modprobe.blacklist=pcspkr"

pinfan2

我的也是一样问题

，你解决了吗

玉尺书生

ssh下输入cat /proc/cmdline，然后截图发上来看看

郭密℡₁

aidelingyu@GuoMi-NAS:~$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-6.6.38-trim root=UUID=2e605d49-ccca-4e4b-862b-28d3c2e858a4 ro modprobe.blacklist=pcspkr quiet i915.force_probe=7d55 intel_iommu=on iommu=pt
aidelingyu@GuoMi-NAS:~$

我的也是一样的问题，

我的CPU是N6000

alexklaws

root@fnas:~# cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-6.6.38-trim root=UUID=3ba2970a-d02d-4f4c-9a84-cb3cded12572 ro modprobe.blacklist=pcspkr quiet i915.force_probe=7d55 intel_iommu=on iommu=pt

我也是 开启不了。cpu 英特尔I3 4160

root@fnas:~# lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 39 bits physical, 48 bits virtual
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Vendor ID: GenuineIntel
BIOS Vendor ID: Intel
Model name: Intel(R) Core(TM) i3-4160 CPU @ 3.60GHz
BIOS Model name: Intel(R) Core(TM) i3-4160 CPU @ 3.60GHz Fill By OEM CPU @ 3.6GHz
BIOS CPU family: 1
CPU family: 6
Model: 60
Thread(s) per core: 2
Core(s) per socket: 2
Socket(s): 1
Stepping: 3
CPU(s) scaling MHz: 26%
CPU max MHz: 3600.0000
CPU min MHz: 800.0000
BogoMIPS: 7182.89
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon p
ebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 movbe popcnt tsc_d
eadline_timer aes xsave avx f16c rdrand lahf_lm abm cpuid_fault epb pti ssbd ibrs ibpb stibp tpr_shadow flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erm
s invpcid xsaveopt dtherm arat pln pts vnmi md_clear flush_l1d
Virtualization features:
Virtualization: VT-x
Caches (sum of all):
L1d: 64 KiB (2 instances)
L1i: 64 KiB (2 instances)
L2: 512 KiB (2 instances)
L3: 3 MiB (1 instance)
NUMA:
NUMA node(s): 1
NUMA node0 CPU(s): 0-3
Vulnerabilities:
Gather data sampling: Not affected
Itlb multihit: KVM: Mitigation: Split huge pages
L1tf: Mitigation; PTE Inversion; VMX conditional cache flushes, SMT vulnerable
Mds: Mitigation; Clear CPU buffers; SMT vulnerable
Meltdown: Mitigation; PTI
Mmio stale data: Unknown: No mitigations
Reg file data sampling: Not affected
Retbleed: Not affected
Spec rstack overflow: Not affected
Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl
Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization
Spectre v2: Mitigation; Retpolines; IBPB conditional; IBRS_FW; STIBP conditional; RSB filling; PBRSB-eIBRS Not affected; BHI Not affected
Srbds: Mitigation; Microcode
Tsx async abort: Not affected