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c9cd0beae9
- Explicitly initialize a variety of on-stack variables in the emulator that triggered KMSAN false positives (though in fairness in KMSAN, it's comically difficult to see that the uninitialized memory is never truly consumed). - Fix the deubgregs ABI for 32-bit KVM, and clean up code related to reading DR6 and DR7. - Rework the "force immediate exit" code so that vendor code ultimately decides how and when to force the exit. This allows VMX to further optimize handling preemption timer exits, and allows SVM to avoid sending a duplicate IPI (SVM also has a need to force an exit). - Fix a long-standing bug where kvm_has_noapic_vcpu could be left elevated if vCPU creation ultimately failed, and add WARN to guard against similar bugs. - Provide a dedicated arch hook for checking if a different vCPU was in-kernel (for directed yield), and simplify the logic for checking if the currently loaded vCPU is in-kernel. - Misc cleanups and fixes. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEKTobbabEP7vbhhN9OlYIJqCjN/0FAmXrRjQACgkQOlYIJqCj N/2Dzw//b+ptSBAl1kGBRmk/DqsX7J9ZkQYCQOTeh1vXiUM+XRTSQoArN0Oo1roy 3wcEnQ0beVw7jMuzZ8UUuTfU8WUMja/kwltnqXYNHwLnb6yH0I/BIengXWdUdAMc FmgPZ4qJR2IzKYzvDsc3eEQ515O8UHWakyVDnmLBtiakAeBcUTYceHpEEPpzE5y5 ODASTQKM9o/h8R8JwKFTJ8/mrOLNcsu5SycwFdnmubLJCrNWtJWTijA6y1lh6shn hbEJex+ESoC2v8p7IP53u1SGJubVlPajt+RkYJtlEI3WVsevp024eYcF4nb1OjXi qS2Y3W7DQGWvyCBoSzoMY+9nRMgyOOpHYetdiz+9oZOmnjiYWY0ku59U7Gv+Aotj AUbCn4Ry/OpqsuZ7Oo7i3IT8R7uzsTeNNdxhYBn1OQquBEZ0KBYXlZkGfTk9K0t0 Fhka/5Zu6fBlg5J+zCyaXUGmsGWBo/9HxsC5z1JuKo8fatro5qyqYE5KiM01dkqc 6FET6gL+fFprC5c67JGRPdEtk6F9Emb+6oiTTA8/8q8JQQAKiJKk95Nlq7KzPfVS A5RQPTuTJ7acE/5CY4zB1DdxCjqgnonBEA2ULnA/J10Rk8orHJRnGJcEwKEyDrZh HpsxIIqt++i8KffORpCym6zSAVYuQjn1mu7MGth+zuCqhcEpBfc= =GX0O -----END PGP SIGNATURE----- Merge tag 'kvm-x86-misc-6.9' of https://github.com/kvm-x86/linux into HEAD KVM x86 misc changes for 6.9: - Explicitly initialize a variety of on-stack variables in the emulator that triggered KMSAN false positives (though in fairness in KMSAN, it's comically difficult to see that the uninitialized memory is never truly consumed). - Fix the deubgregs ABI for 32-bit KVM, and clean up code related to reading DR6 and DR7. - Rework the "force immediate exit" code so that vendor code ultimately decides how and when to force the exit. This allows VMX to further optimize handling preemption timer exits, and allows SVM to avoid sending a duplicate IPI (SVM also has a need to force an exit). - Fix a long-standing bug where kvm_has_noapic_vcpu could be left elevated if vCPU creation ultimately failed, and add WARN to guard against similar bugs. - Provide a dedicated arch hook for checking if a different vCPU was in-kernel (for directed yield), and simplify the logic for checking if the currently loaded vCPU is in-kernel. - Misc cleanups and fixes. |
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