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Annotation of qemu/roms/seabios/src/ssdt-proc.dsl, revision 1.1

1.1     ! root        1: /* This file is the basis for the ssdt_proc[] variable in src/acpi.c.
        !             2:  * It defines the contents of the per-cpu Processor() object.  At
        !             3:  * runtime, a dynamically generated SSDT will contain one copy of this
        !             4:  * AML snippet for every possible cpu in the system.  The objects will
        !             5:  * be placed in the \_SB_ namespace.
        !             6:  *
        !             7:  * To generate a new ssdt_proc[], run the commands:
        !             8:  *   cpp -P src/ssdt-proc.dsl > out/ssdt-proc.dsl.i
        !             9:  *   iasl -ta -p out/ssdt-proc out/ssdt-proc.dsl.i
        !            10:  *   tail -c +37 < out/ssdt-proc.aml | hexdump -e '"    " 8/1 "0x%02x," "\n"'
        !            11:  * and then cut-and-paste the output into the src/acpi.c ssdt_proc[]
        !            12:  * array.
        !            13:  *
        !            14:  * In addition to the aml code generated from this file, the
        !            15:  * src/acpi.c file creates a NTFY method with an entry for each cpu:
        !            16:  *     Method(NTFY, 2) {
        !            17:  *         If (LEqual(Arg0, 0x00)) { Notify(CP00, Arg1) }
        !            18:  *         If (LEqual(Arg0, 0x01)) { Notify(CP01, Arg1) }
        !            19:  *         ...
        !            20:  *     }
        !            21:  * and a CPON array with the list of active and inactive cpus:
        !            22:  *     Name(CPON, Package() { One, One, ..., Zero, Zero, ... })
        !            23:  */
        !            24: DefinitionBlock ("ssdt-proc.aml", "SSDT", 0x01, "BXPC", "BXSSDT", 0x1)
        !            25: /*  v------------------ DO NOT EDIT ------------------v */
        !            26: {
        !            27:     Processor (CPAA, 0xAA, 0x0000b010, 0x06) {
        !            28:         Name (ID, 0xAA)
        !            29: /*  ^------------------ DO NOT EDIT ------------------^
        !            30:  *
        !            31:  * The src/acpi.c code requires the above layout so that it can update
        !            32:  * CPAA and 0xAA with the appropriate CPU id (see
        !            33:  * SD_OFFSET_CPUHEX/CPUID1/CPUID2).  Don't change the above without
        !            34:  * also updating the C code.
        !            35:  */
        !            36:         Name (_HID, "ACPI0007")
        !            37:         External(CPMA, MethodObj)
        !            38:         External(CPST, MethodObj)
        !            39:         External(CPEJ, MethodObj)
        !            40:         Method(_MAT, 0) {
        !            41:             Return(CPMA(ID))
        !            42:         }
        !            43:         Method (_STA, 0) {
        !            44:             Return(CPST(ID))
        !            45:         }
        !            46:         Method (_EJ0, 1, NotSerialized) {
        !            47:             CPEJ(ID, Arg0)
        !            48:         }
        !            49:     }
        !            50: }

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