i386: add ACPI table files from seabios

This adds ASL code as well as scripts for processing it,
imported from seabios git tree
commit 51684b7ced75fb76776e8ee84833fcfb6ecf12dd

Will be used for runtime acpi table generation.

Note:
This patch reuses some code from SeaBIOS, which was originally under
LGPLv2 and then relicensed to GPLv3 or LGPLv3, in QEMU under GPLv2+. This
relicensing has been acked by all contributors that had contributed to the
code since the v2->v3 relicense. ACKs approving the v2+ relicensing are
listed below. The list might include ACKs from people not holding
copyright on any parts of the reused code, but it's better to err on the
side of caution and include them.

Affected SeaBIOS files (GPLv2+ license headers added)
<http://thread.gmane.org/gmane.comp.bios.coreboot.seabios/5949>:

 src/acpi-dsdt-cpu-hotplug.dsl
 src/acpi-dsdt-dbug.dsl
 src/acpi-dsdt-hpet.dsl
 src/acpi-dsdt-isa.dsl
 src/acpi-dsdt-pci-crs.dsl
 src/acpi.c
 src/acpi.h
 src/ssdt-misc.dsl
 src/ssdt-pcihp.dsl
 src/ssdt-proc.dsl
 tools/acpi_extract.py
 tools/acpi_extract_preprocess.py

Each one of the listed people agreed to the following:

> If you allow the use of your contribution in QEMU under the
> terms of GPLv2 or later as proposed by this patch,
> please respond to this mail including the line:
>
> Acked-by: Name <email address>

  Acked-by: Gerd Hoffmann <kraxel@redhat.com>
  Acked-by: Jan Kiszka <jan.kiszka@siemens.com>
  Acked-by: Jason Baron <jbaron@akamai.com>
  Acked-by: David Woodhouse <David.Woodhouse@intel.com>
  Acked-by: Gleb Natapov <gleb@redhat.com>
  Acked-by: Marcelo Tosatti <mtosatti@redhat.com>
  Acked-by: Dave Frodin <dave.frodin@se-eng.com>
  Acked-by: Paolo Bonzini <pbonzini@redhat.com>
  Acked-by: Kevin O'Connor <kevin@koconnor.net>
  Acked-by: Laszlo Ersek <lersek@redhat.com>
  Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
  Acked-by: Isaku Yamahata <yamahata@valinux.co.jp>
  Acked-by: Magnus Christensson <magnus.christensson@intel.com>
  Acked-by: Hu Tao <hutao@cn.fujitsu.com>
  Acked-by: Eduardo Habkost <ehabkost@redhat.com>

Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Hu Tao <hutao@cn.fujitsu.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 63 insertions, 0 deletions

diff --git a/hw/i386/ssdt-proc.dsl b/hw/i386/ssdt-proc.dsl
new file mode 100644
index 0000000000..58333c71b4
--- /dev/null
+++ b/hw/i386/ssdt-proc.dsl
@@ -0,0 +1,63 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* This file is the basis for the ssdt table generated in src/acpi.c.
+ * It defines the contents of the per-cpu Processor() object.  At
+ * runtime, a dynamically generated SSDT will contain one copy of this
+ * AML snippet for every possible cpu in the system.  The objects will
+ * be placed in the \_SB_ namespace.
+ *
+ * In addition to the aml code generated from this file, the
+ * src/acpi.c file creates a NTFY method with an entry for each cpu:
+ *     Method(NTFY, 2) {
+ *         If (LEqual(Arg0, 0x00)) { Notify(CP00, Arg1) }
+ *         If (LEqual(Arg0, 0x01)) { Notify(CP01, Arg1) }
+ *         ...
+ *     }
+ * and a CPON array with the list of active and inactive cpus:
+ *     Name(CPON, Package() { One, One, ..., Zero, Zero, ... })
+ */
+
+ACPI_EXTRACT_ALL_CODE ssdp_proc_aml
+
+DefinitionBlock ("ssdt-proc.aml", "SSDT", 0x01, "BXPC", "BXSSDT", 0x1)
+{
+    ACPI_EXTRACT_PROCESSOR_START ssdt_proc_start
+    ACPI_EXTRACT_PROCESSOR_END ssdt_proc_end
+    ACPI_EXTRACT_PROCESSOR_STRING ssdt_proc_name
+    Processor(CPAA, 0xAA, 0x0000b010, 0x06) {
+        ACPI_EXTRACT_NAME_BYTE_CONST ssdt_proc_id
+        Name(ID, 0xAA)
+/*
+ * The src/acpi.c code requires the above ACP_EXTRACT tags so that it can update
+ * CPAA and 0xAA with the appropriate CPU id (see
+ * SD_OFFSET_CPUHEX/CPUID1/CPUID2).  Don't change the above without
+ * also updating the C code.
+ */
+        Name(_HID, "ACPI0007")
+        External(CPMA, MethodObj)
+        External(CPST, MethodObj)
+        External(CPEJ, MethodObj)
+        Method(_MAT, 0) {
+            Return (CPMA(ID))
+        }
+        Method(_STA, 0) {
+            Return (CPST(ID))
+        }
+        Method(_EJ0, 1, NotSerialized) {
+            CPEJ(ID, Arg0)
+        }
+    }
+}