XSA-407 followon fixes

[PATCH 0/3] XSA-407 followon fixes

Andrew Cooper posted 3 patches 1 year, 9 months ago

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git fetch https://gitlab.com/xen-project/patchew/xen tags/patchew/20220718205009.3557-1-andrew.cooper3@citrix.com

xen/arch/x86/hvm/svm/entry.S             | 10 +++++-----
xen/arch/x86/hvm/vmx/entry.S             |  4 +---
xen/arch/x86/include/asm/spec_ctrl_asm.h | 14 ++++----------
xen/arch/x86/indirect-thunk.S            |  6 ++----
4 files changed, 12 insertions(+), 22 deletions(-)

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[PATCH 0/3] XSA-407 followon fixes

Posted by Andrew Cooper 1 year, 9 months ago

Fixes accumulated during XSA-407 which weren't security worthy in and of
themselves.

Andrew Cooper (3):
  x86/spec-ctrl: Consistently halt speculation using int3
  x86/spec-ctrl: Make svm_vmexit_spec_ctrl conditional
  x86/spec-ctrl: Shrink further entry paths due to %rdx being 0

 xen/arch/x86/hvm/svm/entry.S             | 10 +++++-----
 xen/arch/x86/hvm/vmx/entry.S             |  4 +---
 xen/arch/x86/include/asm/spec_ctrl_asm.h | 14 ++++----------
 xen/arch/x86/indirect-thunk.S            |  6 ++----
 4 files changed, 12 insertions(+), 22 deletions(-)

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2.11.0