mbox series

[0/3] Add multiprocessor wake-up support

Message ID 20210422192442.706906-1-sathyanarayanan.kuppuswamy@linux.intel.com (mailing list archive)
Headers show
Series Add multiprocessor wake-up support | expand

Message

Kuppuswamy Sathyanarayanan April 22, 2021, 7:24 p.m. UTC 
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(+)