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KVM selftests changes for 7.3, part 1

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- Clean up nested SVM's handling of GPRs on L2<=>L1 transitions, reuse the
    functionality for nested VMX, and drop the ucall hack that was fudging
    around the lack of GPR switching on nVMX.
 
  - Add a stress test to verify KVM doesn't clobber/drop #PF state, e.g. CR2,
    across save/restore, including when L2 is active.
 
  - Add a test to verify KVM_CREATE_VM accepts exactly what is reported by
    KVM_CAP_VM_TYPES.
 
  - Misc selftests fixes and cleanups
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Merge tag 'kvm-x86-selftests-7.3' of https://github.com/kvm-x86/linux into HEAD

KVM selftests changes for 7.3, part 1

 - Clean up nested SVM's handling of GPRs on L2<=>L1 transitions, reuse the
   functionality for nested VMX, and drop the ucall hack that was fudging
   around the lack of GPR switching on nVMX.

 - Add a stress test to verify KVM doesn't clobber/drop #PF state, e.g. CR2,
   across save/restore, including when L2 is active.

 - Add a test to verify KVM_CREATE_VM accepts exactly what is reported by
   KVM_CAP_VM_TYPES.

 - Misc selftests fixes and cleanups
This commit is contained in:
Paolo Bonzini 2026-08-18 13:16:16 +02:00
commit 2bee2e6c98
22 changed files with 502 additions and 160 deletions
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