Thinkpad T430 kvm: disabled by bios issue

[tjyang]

Hi

Anyone able to enable kvm support for T430 with centos 7.4 ?

Following is my T430 info

[root@t430a ~]# cat /etc/redhat-release
CentOS Linux release 7.4.1708 (Core)
[root@t430a ~]# uname -a
Linux t430a 3.10.0-693.11.1.el7.x86_64 #1 SMP Mon Dec 4 23:52:40 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
[root@t430a ~]# modprobe kvm-intel
modprobe: ERROR: could not insert 'kvm_intel': Operation not supported
[root@t430a ~]#
[root@t430a ~]# dmesg | grep kvm
[ 5.824484] kvm: disabled by bios
[ 5.847736] kvm: disabled by bios
[16367.113457] kvm: disabled by bios
[16470.738273] kvm: disabled by bios
[16833.769304] kvm: disabled by bios
[17475.635868] kvm: disabled by bios
[root@t430a ~]#

Here is BIOS info and I enabled the thread support with latest firmware from lenovo support web site.

BIOS Information
Vendor: LENOVO
Version: G1ETB4WW (2.74 )
Release Date: 09/25/2017
Address: 0xE0000
Runtime Size: 128 kB
ROM Size: 12288 kB
Characteristics:
PCI is supported
PNP is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
EDD is supported
3.5"/720 kB floppy services are supported (int 13h)
Print screen service is supported (int 5h)
8042 keyboard services are supported (int 9h)
Serial services are supported (int 14h)
Printer services are supported (int 17h)
CGA/mono video services are supported (int 10h)
ACPI is supported
USB legacy is supported
BIOS boot specification is supported
Targeted content distribution is supported
UEFI is supported
BIOS Revision: 2.74
Firmware Revision: 1.13

Handle 0x000D, DMI type 1, 27 bytes
System Information
Manufacturer: LENOVO
Product Name: 2347CT4
Version: ThinkPad T430
Serial Number: xxxxxxx
UUID: 816D7081-529C-11CB-B8D1-863F9423EA09
Wake-up Type: Power Switch
SKU Number: LENOVO_MT_2347
Family: ThinkPad T430

Following is a kvm_intel working example from dell c1100

[root@sk89 ~]# lsmod | egrep 'amd|kvm'
kvm_intel 170086 0
kvm 566340 1 kvm_intel
irqbypass 13503 1 kvm
[root@psk89 ~]# dmesg |grep kvm
[ 14.264383] kvm: VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL does not work properly. Using workaround
[root@sk89 ~]#

[tjyang]

Hope this may help others in the future, See R1 for solution.

[root@t430a ~]# lsmod |grep kvm
kvm_intel 170200 0
kvm 566562 1 kvm_intel
irqbypass 13503 1 kvm
[root@t430a ~]#

R1: https://forums.lenovo.com/t5/ThinkPad-T ... a-p/516125