KVM: nVMX: Add consistency checks for CR0.WP and CR4.CET

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Add consistency checks for CR4.CET and CR0.WP in guest-state or host-state
area in the VMCS12. This ensures that configurations with CR4.CET set and
CR0.WP not set result in VM-entry failure, aligning with architectural
behavior.

Tested-by: Mathias Krause <minipli@grsecurity.net>
Tested-by: John Allen <john.allen@amd.com>
Tested-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Signed-off-by: Chao Gao <chao.gao@intel.com>
Reviewed-by: Binbin Wu <binbin.wu@linux.intel.com>
Link: https://lore.kernel.org/r/20250919223258.1604852-33-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Chao Gao 2025-09-19 15:32:39 -07:00 • committed by Sean Christopherson

parent 625884996b

commit 8060b2bd2d

1 changed files with 6 additions and 0 deletions

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arch/x86/kvm/vmx/nested.c

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