** Also affects: archlinux
   Importance: Undecided
       Status: New

** No longer affects: archlinux

You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.

  IA32_FEATURE_CONTROL MSR unset for nested virtualization

Status in QEMU:

Bug description:
  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
  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.

To manage notifications about this bug go to:

Reply via email to