Andrew Cooper 23ccf53043 x86/cpuid: Advertise no-lmsl unilaterally to hvm guests ...

While part of the original AMD64 spec, Long Mode Segment Limit was a feature
not picked up by Intel, and therefore didn't see much adoption in software.
AMD have finally dropped the feature from hardware, and allocated a CPUID bit
to indicate its absence.

Xen has never supported the feature for guests, even when running on capable
hardware, so advertise the feature's absence unilaterally.

There is nothing specifically wrong with exposing this bit to PV guests, but
the PV ABI doesn't include a working concept of MSR_EFER in the first place,
so exposing it to PV guests would be out-of-place.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>

2021-04-13 15:11:55 +01:00

..

.gitignore

tools/misc: Add xen-vmtrace tool

2021-02-05 17:37:28 +00:00

Makefile

tools/misc: Add xen-vmtrace tool

2021-02-05 17:37:28 +00:00

mkdeb

mkdeb: use compression level 0

2018-09-07 15:06:00 +01:00

mkhex

mkhex: Move it to tools/misc

2017-10-05 09:27:32 -04:00

mkrpm

rpmball: Adjust to new rpm, do not require --force

2020-08-14 17:18:56 +01:00

mktarball

mktarball: For qemu upstream, use their scripts/archive-source.sh

2018-04-17 18:21:30 +01:00

xen-access.c

tools: Move xen-access from tests/ to misc/

2021-01-13 19:30:50 +00:00

xen-cpuid.c

x86/cpuid: Advertise no-lmsl unilaterally to hvm guests

2021-04-13 15:11:55 +01:00

xen-detect.c

xen-detect: make CPUID fallback CPUID-faulting aware

2020-10-20 08:53:53 +02:00

xen-diag.c

tools: Move ARRAY_SIZE() into xen-tools/libs.h

2018-07-04 17:25:37 +01:00

xen-hptool.c

tools/misc: don't use libxenctrl internals from xen-hptool

2020-09-09 10:57:25 +00:00

xen-hvmcrash.c

tools/misc: xen-hvmcrash: New tool to attempt to crash HVM guests

2010-07-29 18:58:19 +01:00

xen-hvmctx.c

viridian: introduce struct viridian_page

2018-11-09 11:40:12 +01:00

xen-livepatch.c

livepatch: Add metadata runtime retrieval mechanism

2019-12-13 14:45:32 +00:00

xen-lowmemd.c

tools: drop all deprecated usages of xs_*_open() and friends in tools

2020-10-08 12:47:59 +00:00

xen-memshare.c

tools: Move memshrtool from tests/ to misc/

2021-01-13 19:30:50 +00:00

xen-mfndump.c

tools/misc: drop all libxc internals from xen-mfndump.c

2020-09-09 10:57:25 +00:00

xen-ucode.c

tools/xen-ucode: return correct exit code on failed microcode update

2020-06-18 16:45:14 +01:00

xen-vmtrace.c

tools/misc/xen-vmtrace: use reset and enable

2021-02-22 11:15:31 +00:00

xencons

bitkeeper revision 1.1159.187.78 (41c9d4768ZT219TwwhKCb8dfwHcdkA)

2004-12-22 20:09:26 +00:00

xencov_split

tools: Use INSTALL_PYTHON_PROG

2020-05-19 11:40:53 +01:00

xencov.c

gcov: rename sysctl and functions

2018-01-25 12:27:44 +01:00

xenhypfs.c

tools: make libxenhypfs interface more future proof

2020-06-02 12:05:30 +00:00

xenlockprof.c

Various: Fix typo `reseting'

2018-10-08 15:20:18 +01:00

xenperf.c

Various: Fix typo `reseting'

2018-10-08 15:20:18 +01:00

xenpm.c

tools/libxc: allow controlling the max C-state sub-state

2019-07-22 11:35:19 +02:00

xenpvnetboot

Replace FSF street address with canonical URL

2015-07-29 11:14:07 +01:00

xensymoops

bitkeeper revision 1.1159.137.1 (41811b328SwfN4BTxZsoMM-iGa8evQ)

2004-10-28 16:15:46 +00:00

xenwatchdogd.c

xenwatchdogd: Fix build errors

2010-06-07 07:16:43 +01:00