kvm/x86/nested-vmx.rst

1 .. SPDX-License-Identifier: GPL-2.0
8 ---------
10 On Intel processors, KVM uses Intel's VMX (Virtual-Machine eXtensions)
15 The "Nested VMX" feature adds this missing capability - of running guest
25 	https://www.usenix.org/events/osdi10/tech/full_papers/Ben-Yehuda.pdf
29 -----------
31 Single-level virtualization has two levels - the host (KVM) and the guests.
38 ------------------
42 kvm-intel module.
49      - cpu host              (emulated CPU has all features of the real CPU)
51      - cpu qemu64,+vmx       (add just the vmx feature to a named CPU type)
55 ----
57 Nested VMX aims to present a standard and (eventually) fully-functional VMX
60 namely volume 3B of their "Intel 64 and IA-32 Architectures Software
66 As mandated by the spec, other than the two fields revision_id and abort,
75 which L0 builds to actually run L2 - how this is done is explained in the
88 		 * these two user-visible fields */
121 		natural_width dead_space[4]; /* Last remnants of cr3_target_value[0-3]. */
224 -------
227     - Abel Gordon, abelg <at> il.ibm.com
228     - Nadav Har'El, nyh <at> il.ibm.com
229     - Orit Wasserman, oritw <at> il.ibm.com
230     - Ben-Ami Yassor, benami <at> il.ibm.com
231     - Muli Ben-Yehuda, muli <at> il.ibm.com
234     - Anthony Liguori, aliguori <at> us.ibm.com
235     - Mike Day, mdday <at> us.ibm.com
236     - Michael Factor, factor <at> il.ibm.com
237     - Zvi Dubitzky, dubi <at> il.ibm.com
240     - Avi Kivity, avi <at> redhat.com
241     - Gleb Natapov, gleb <at> redhat.com
242     - Marcelo Tosatti, mtosatti <at> redhat.com
243     - Kevin Tian, kevin.tian <at> intel.com
244     - and others.