KVM: x86: Disallow changing x2APIC ID via userspace

[PATCH 0/2] KVM: x86: Disallow changing x2APIC ID via userspace

Sean Christopherson posted 2 patches 1 year, 4 months ago

Download series mbox

arch/x86/kvm/lapic.c                          | 18 +++++++++---
.../selftests/kvm/x86_64/xapic_state_test.c   | 28 +++++++++++++++++++
2 files changed, 42 insertions(+), 4 deletions(-)

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[PATCH 0/2] KVM: x86: Disallow changing x2APIC ID via userspace

Posted by Sean Christopherson 1 year, 4 months ago

Silently ignore userspace attempts to change the x2APIC ID via
KVM_SET_LAPIC.

I've been hunting for this series since January[*], and *finally* stumbled
across it while tidying up my (too) many git trees.

[*] https://lore.kernel.org/all/ZbPkHvuJv0EdJhVN@google.com

Michal Luczaj (1):
  KVM: selftests: Add a testcase to verify x2APIC is fully readonly

Sean Christopherson (1):
  KVM: x86: Make x2APIC ID 100% readonly

 arch/x86/kvm/lapic.c                          | 18 +++++++++---
 .../selftests/kvm/x86_64/xapic_state_test.c   | 28 +++++++++++++++++++
 2 files changed, 42 insertions(+), 4 deletions(-)


base-commit: 332d2c1d713e232e163386c35a3ba0c1b90df83f
-- 
2.46.0.rc2.264.g509ed76dc8-goog