Kirill A. Shutemov 66e48e491d cpu/hotplug, x86/acpi: Disable CPU offlining for ACPI MADT wakeup ... ACPI MADT doesn't allow to offline a CPU after it has been woken up. Currently, CPU hotplug is prevented based on the confidential computing attribute which is set for Intel TDX. But TDX is not the only possible user of the wake up method. Any platform that uses ACPI MADT wakeup method cannot offline CPU. Disable CPU offlining on ACPI MADT wakeup enumeration. This has no visible effects for users: currently, TDX guest is the only platform that uses the ACPI MADT wakeup method. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Tao Liu <ltao@redhat.com> Link: https://lore.kernel.org/r/20240614095904.1345461-5-kirill.shutemov@linux.intel.com		2024-06-17 17:45:34 +02:00
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tdx	- Add support managing TDX host hardware	2024-01-18 13:41:48 -08:00
core.c	cpu/hotplug, x86/acpi: Disable CPU offlining for ACPI MADT wakeup	2024-06-17 17:45:34 +02:00
Makefile	x86/tdx: Detect running as a TDX guest in early boot	2022-04-07 08:27:50 -07:00