大神看一下这个IOMMU开启了吗？

李小涛

root@fn123:~# nano /etc/default/grub root@fn123:~# dmesg | grep -e DMAR [ 0.008251] ACPI: DMAR 0x000000006F51E930 0000A8 (v01 INTEL EDK2 00000002 01000013) [ 0.008279] ACPI: Reserving DMAR table memory at [mem 0x6f51e930-0x6f51e9d7] [ 0.050662] DMAR: Host address width 39 [ 0.050665] DMAR: DRHD base: 0x000000fed90000 flags: 0x0 [ 0.050671] DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap 1c0000c40660462 ecap 19e2ff0505e [ 0.050676] DMAR: DRHD base: 0x000000fed91000 flags: 0x1 [ 0.050680] DMAR: dmar1: reg_base_addr fed91000 ver 1:0 cap d2008c40660462 ecap f050da [ 0.050684] DMAR: RMRR base: 0x0000006f809000 end: 0x0000006fa52fff [ 0.050687] DMAR: RMRR base: 0x00000078800000 end: 0x00000088ffffff [ 0.050691] DMAR-IR: IOAPIC id 2 under DRHD base 0xfed91000

IOMMU 1 [ 0.050693] DMAR-IR: HPET id 0 under DRHD base 0xfed91000 [ 0.050696] DMAR-IR: Queued invalidation will be enabled to support x2apic and Intr-remapping. [ 0.053859] DMAR-IR: Enabled IRQ remapping in x2apic mode