Add multiprocessor wakeup support using MADT ACPI table for x86 platforms. It uses mailbox based mechanism to wake up the APs. You can get more details about the ACPI table and mailbox protocol in Guest-Host-Communication Interface (GHCI) for Intel Trust Domain Extensions (Intel TDX) specification document (sec 4.1) https://software.intel.com/content/dam/develop/external/us/en/documents/intel-tdx-guest-hypervisor-communication-interface.pdf Kuppuswamy Sathyanarayanan (3): ACPICA: ACPI 6.4: MADT: add Multiprocessor Wakeup Mailbox Structure ACPI/table: Print MADT Wake table information x86/acpi, x86/boot: Add multiprocessor wake-up support arch/x86/include/asm/apic.h | 3 ++ arch/x86/kernel/acpi/boot.c | 56 +++++++++++++++++++++++++++++++++ arch/x86/kernel/apic/probe_32.c | 8 +++++ arch/x86/kernel/apic/probe_64.c | 8 +++++ drivers/acpi/tables.c | 11 +++++++ include/acpi/actbl2.h | 14 +++++++++ 6 files changed, 100 insertions(+) -- 2.25.1
