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Diffstat (limited to 'results/classifier/accel-gemma3:12b/vmm/1541643')
| -rw-r--r-- | results/classifier/accel-gemma3:12b/vmm/1541643 | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/results/classifier/accel-gemma3:12b/vmm/1541643 b/results/classifier/accel-gemma3:12b/vmm/1541643 new file mode 100644 index 000000000..5ebd1bda6 --- /dev/null +++ b/results/classifier/accel-gemma3:12b/vmm/1541643 @@ -0,0 +1,8 @@ + +IA32_FEATURE_CONTROL MSR unset for nested virtualization + +I enabled nested virtualization for the kvm_intel module, and passed -enable-kvm and -cpu host to qemu. However, the qemu BIOS did not set IA32_FEATURE_CONTROL MSR (index 0x3a) to a non-zero value allow VMXON. According to the Intel manual Section 23.7 ENABLING AND ENTERING VMX OPERATION: "To enable VMX support in a platform, BIOS must set bit 1, bit 2, or both (see below), as well as the lock bit." + +I noticed an old mailing list thread on this (https://lists.nongnu.org/archive/html/qemu-devel/2015-01/msg01372.html), but I wanted to point out that the Intel manual (and all the physical hardware I've tested) specifically contradicts this response. + +Tested on kernel 4.3.3 and qemu 2.4.1. \ No newline at end of file |