Messages in this thread | | | From | Kuppuswamy Sathyanarayanan <> | Subject | [PATCH v2 0/3] Add multiprocessor wake-up support | Date | Thu, 22 Apr 2021 14:47:05 -0700 |
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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
Changes since v1: * Removed signoff from Rob and Erik.
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
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