[coreboot] [commit] r6127 - in trunk/src: mainboard/asus/p2b northbridge/intel/i440bx/acpi southbridge/intel/i82371eb southbridge/intel/i82371eb/acpi

[Tobias Diedrich]

Rudolf Marek wrote:
> Maybe DSDT version is bad?

Test dsdt:
DefinitionBlock ("DSDT.aml", "DSDT", 2, "CORE  ", "COREBOOT", 1)
{
        Scope (\_PR)
        {
                Processor (CPU0, 1, Add(2, 3), 4) {}
        }
}

iasl dsdt.asl:
|ASL Input:  dsdt.asl - 9 lines, 128 bytes, 3 keywords
|AML Output: DSDT.aml - 60 bytes, 2 named objects, 1 executable opcodes
|
|Compilation complete. 0 Errors, 0 Warnings, 0 Remarks, 1 Optimizations

iasl -d DSDT.aml:
|Loading Acpi table from file DSDT.aml
|Acpi table [DSDT] successfully installed and loaded
|Pass 1 parse of [DSDT]
|Pass 2 parse of [DSDT]
|Parsing Deferred Opcodes (Methods/Buffers/Packages/Regions)
|
|Parsing completed
|Disassembly completed, written to "DSDT.dsl"

So far so good, but the output doesn't match the original input:
|ACPI Error: Found unknown opcode 0x2 at AML address 0x1d14af7 offset 0x13, ignoring (20100528/psloop-232)
|ACPI Error: Found unknown opcode 0x4 at AML address 0x1d14afb offset 0x17, ignoring (20100528/psloop-232)
|ACPI Error: Found unknown opcode 0x2 at AML address 0x1d14af7 offset 0x13, ignoring (20100528/psloop-232)
|ACPI Error: Found unknown opcode 0x4 at AML address 0x1d14afb offset 0x17, ignoring (20100528/psloop-232)
|/*
| * Intel ACPI Component Architecture
| * AML Disassembler version 20100528
[...]
|DefinitionBlock ("DSDT.aml", "DSDT", 2, "CORE  ", "COREBOOT", 0x00000001)
|{
|    Scope (_PR)
|    {
|        Processor (CPU0, 0x01, 0x00000000, 0x0A)
|        {
|            0x03
|            Zero
|        }
|    }
|}

Definitively a iasl problem, it can't even disassemble it's own
output back to something equivalent to the input file.
It seems to be generating Bytecode for the Add where it shouldn't.

-- 
Tobias						PGP: http://8ef7ddba.uguu.de