KVM: VMX: Bury Intel PT virtualization (guest/host mode) behind CONFIG_BROKEN

...

CVE-2024-53135

CVE-2024-53135 affects the Linux kernel’s KVM/VMX functionality. The issuebury Intel PT virtualization (guest/host mode) behind CONFIG_BROKEN disables pt_mode unless BROKEN=y and exposes numerous bugs that can affect both guest stability and host health. Reported problems include: guest fatalitie...