[0/2] x86: Work around Shstk fracturing

Message

Andrew Cooper Dec. 31, 2022, 12:30 a.m. UTC

See patch 2 for details.

Andrew Cooper (2):
  x86/cpuid: Infrastructure for leaves 7:1{ecx,edx}
  x86/shskt: Disable CET-SS on parts succeptable to fractured updates

 docs/misc/xen-command-line.pandoc           |  7 +++++-
 tools/libs/light/libxl_cpuid.c              |  2 ++
 tools/misc/xen-cpuid.c                      | 11 +++++++++
 xen/arch/x86/cpu/common.c                   | 14 ++++++++---
 xen/arch/x86/setup.c                        | 37 ++++++++++++++++++++++++++---
 xen/include/public/arch-x86/cpufeatureset.h |  4 ++++
 xen/include/xen/lib/x86/cpuid.h             | 15 +++++++++++-
 7 files changed, 82 insertions(+), 8 deletions(-)