linux-kernel - [PATCH v2 0/3] Add multiprocessor wake-up support

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Message-Id: <20210422214708.716164-1-sathyanarayanan.kuppuswamy@linux.intel.com>
Date:   Thu, 22 Apr 2021 14:47:05 -0700
From:   Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>
To:     Rafael J Wysocki <rjw@...ysocki.net>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H . Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <peterz@...radead.org>
Cc:     Len Brown <lenb@...nel.org>, Robert Moore <robert.moore@...el.com>,
        Erik Kaneda <erik.kaneda@...el.com>,
        linux-acpi@...r.kernel.org, devel@...ica.org,
        linux-kernel@...r.kernel.org, x86@...nel.org,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>
Subject: [PATCH v2 0/3] Add multiprocessor wake-up support

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