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Date: Tue, 01 Jun 2010 23:01:35 -0700
From: "Justin P. Mattock" <justinmattock@...il.com>
To: Robert Hancock <hancockrwd@...il.com>
CC: Matthew Garrett <mjg59@...f.ucam.org>, x86@...nel.org,
tglx@...utronix.de, linux-kernel@...r.kernel.org
Subject: Re: [PATCH]X86:reboot.c Add some dmi entries to pci_reboot_dmi_table.
On 06/01/2010 10:11 PM, Robert Hancock wrote:
> On 06/01/2010 03:43 PM, Justin P. Mattock wrote:
>> On 06/01/2010 02:29 PM, Matthew Garrett wrote:
>>> On Tue, Jun 01, 2010 at 02:26:01PM -0700, Justin P. Mattock wrote:
>>>> On 06/01/2010 02:12 PM, Matthew Garrett wrote:
>>>>> some level. How about the following (again, run as root):
>>>>>
>>>>> #include<sys/io.h>
>>>>>
>>>>> int main() {
>>>>> iopl(3);
>>>>> outb(0xfe, 0x64);
>>>>> return 0;
>>>>> }
>>>>>
>>>
>>> So, just to be clear, you run this as root and it immediately returns
>>> you to the prompt? This seems unlikely.
>>
>> yep.. with the above code
>> I (save to a file) then
>> non-root gcc reboot.c -o reboot
>> then su
>> ./reboot
>> just bake to the command prompt
>
> Can you post the FACP section of the acpidump output from this machine?
>
here you go:
/*
* Intel ACPI Component Architecture
* AML Disassembler version 20090123
*
* Disassembly of FACP.dat, Tue Jun 1 22:58:36 2010
*
* ACPI Data Table [FACP]
*
* Format: [HexOffset DecimalOffset ByteLength] FieldName : FieldValue
*/
[000h 000 4] Signature : "FACP" /* Fixed ACPI
Description Table */
[004h 004 4] Table Length : 000000F4
[008h 008 1] Revision : 03
[009h 009 1] Checksum : 0B
[00Ah 010 6] Oem ID : "APPLE "
[010h 016 8] Oem Table ID : "Apple00 "
[018h 024 4] Oem Revision : 0000008D
[01Ch 028 4] Asl Compiler ID : "Loki"
[020h 032 4] Asl Compiler Revision : 0000005F
[024h 036 4] FACS Address : BFECD000
[028h 040 4] DSDT Address : BFEE0000
[02Ch 044 1] Model : 00
[02Dh 045 1] PM Profile : 01
[02Eh 046 2] SCI Interrupt : 0009
[030h 048 4] SMI Command Port : 0000052E
[034h 052 1] ACPI Enable Value : F0
[035h 053 1] ACPI Disable Value : F1
[036h 054 1] S4BIOS Command : F2
[037h 055 1] P-State Control : 80
[038h 056 4] PM1A Event Block Address : 00000400
[03Ch 060 4] PM1B Event Block Address : 00000000
[040h 064 4] PM1A Control Block Address : 00000404
[044h 068 4] PM1B Control Block Address : 00000000
[048h 072 4] PM2 Control Block Address : 0000041C
[04Ch 076 4] PM Timer Block Address : 00000408
[050h 080 4] GPE0 Block Address : 00000420
[054h 084 4] GPE1 Block Address : 000005A0
[058h 088 1] PM1 Event Block Length : 04
[059h 089 1] PM1 Control Block Length : 02
[05Ah 090 1] PM2 Control Block Length : 01
[05Bh 091 1] PM Timer Block Length : 04
[05Ch 092 1] GPE0 Block Length : 08
[05Dh 093 1] GPE1 Block Length : 10
[05Eh 094 1] GPE1 Base Offset : 20
[05Fh 095 1] _CST Support : 00
[060h 096 2] C2 Latency : 0065
[062h 098 2] C3 Latency : 03E9
[064h 100 2] CPU Cache Size : 0000
[066h 102 2] Cache Flush Stride : 0000
[068h 104 1] Duty Cycle Offset : 01
[069h 105 1] Duty Cycle Width : 03
[06Ah 106 1] RTC Day Alarm Index : 7D
[06Bh 107 1] RTC Month Alarm Index : 7E
[06Ch 108 1] RTC Century Index : 32
[06Dh 109 2] Boot Flags (decoded below) : 0001
Legacy Devices Supported (V2) : 1
8042 Present on ports 60/64 (V2) : 0
VGA Not Present (V4) : 0
MSI Not Supported (V4) : 0
PCIe ASPM Not Supported (V4) : 0
[06Fh 111 1] Reserved : 00
[070h 112 4] Flags (decoded below) : 00008425
WBINVD instruction is operational (V1) : 1
WBINVD flushes all caches (V1) : 0
All CPUs support C1 (V1) : 1
C2 works on MP system (V1) : 0
Control Method Power Button (V1) : 0
Control Method Sleep Button (V1) : 1
RTC wakeup reg not in fixed space (V1) : 0
RTC can wake system from S4 (V1) : 0
32-bit PM Timer (V1) : 0
Docking Supported (V1) : 0
Reset Register Supported (V2) : 1
Sealed Case (V3) : 0
Headless - No Video (V3) : 0
Use native instr after SLP_TYPx (V3) : 0
PCIEXP_WAK Bits Supported (V4) : 0
Use Platform Timer (V4) : 1
RTC_STS valid on S4 wake (V4) : 0
Remote Power-on capable (V4) : 0
Use APIC Cluster Model (V4) : 0
Use APIC Physical Destination Mode (V4) : 0
[074h 116 12] Reset Register : <Generic Address Structure>
[074h 116 1] Space ID : 01 (SystemIO)
[075h 117 1] Bit Width : 08
[076h 118 1] Bit Offset : 00
[077h 119 1] Access Width : 00
[078h 120 8] Address : 0000000000000CF9
[080h 128 1] Value to cause reset : 06
[081h 129 3] Reserved : 000000
[084h 132 8] FACS Address : 00000000BFECD000
[08Ch 140 8] DSDT Address : 00000000BFEE0000
[094h 148 12] PM1A Event Block : <Generic Address Structure>
[094h 148 1] Space ID : 01 (SystemIO)
[095h 149 1] Bit Width : 20
[096h 150 1] Bit Offset : 00
[097h 151 1] Access Width : 00
[098h 152 8] Address : 0000000000000400
[0A0h 160 12] PM1B Event Block : <Generic Address Structure>
[0A0h 160 1] Space ID : 01 (SystemIO)
[0A1h 161 1] Bit Width : 00
[0A2h 162 1] Bit Offset : 00
[0A3h 163 1] Access Width : 00
[0A4h 164 8] Address : 0000000000000000
[0ACh 172 12] PM1A Control Block : <Generic Address Structure>
[0ACh 172 1] Space ID : 01 (SystemIO)
[0ADh 173 1] Bit Width : 10
[0AEh 174 1] Bit Offset : 00
[0AFh 175 1] Access Width : 00
[0B0h 176 8] Address : 0000000000000404
[0B8h 184 12] PM1B Control Block : <Generic Address Structure>
[0B8h 184 1] Space ID : 01 (SystemIO)
[0B9h 185 1] Bit Width : 00
[0BAh 186 1] Bit Offset : 00
[0BBh 187 1] Access Width : 00
[0BCh 188 8] Address : 0000000000000000
[0C4h 196 12] PM2 Control Block : <Generic Address Structure>
[0C4h 196 1] Space ID : 01 (SystemIO)
[0C5h 197 1] Bit Width : 08
[0C6h 198 1] Bit Offset : 00
[0C7h 199 1] Access Width : 00
[0C8h 200 8] Address : 000000000000041C
[0D0h 208 12] PM Timer Block : <Generic Address Structure>
[0D0h 208 1] Space ID : 01 (SystemIO)
[0D1h 209 1] Bit Width : 20
[0D2h 210 1] Bit Offset : 00
[0D3h 211 1] Access Width : 00
[0D4h 212 8] Address : 0000000000000408
[0DCh 220 12] GPE0 Block : <Generic Address Structure>
[0DCh 220 1] Space ID : 01 (SystemIO)
[0DDh 221 1] Bit Width : 40
[0DEh 222 1] Bit Offset : 00
[0DFh 223 1] Access Width : 00
[0E0h 224 8] Address : 0000000000000420
[0E8h 232 12] GPE1 Block : <Generic Address Structure>
[0E8h 232 1] Space ID : 01 (SystemIO)
[0E9h 233 1] Bit Width : 80
[0EAh 234 1] Bit Offset : 00
[0EBh 235 1] Access Width : 00
[0ECh 236 8] Address : 00000000000005A0
Raw Table Data
0000: 46 41 43 50 F4 00 00 00 03 0B 41 50 50 4C 45 20 FACP......APPLE
0010: 41 70 70 6C 65 30 30 20 8D 00 00 00 4C 6F 6B 69 Apple00 ....Loki
0020: 5F 00 00 00 00 D0 EC BF 00 00 EE BF 00 01 09 00 _...............
0030: 2E 05 00 00 F0 F1 F2 80 00 04 00 00 00 00 00 00 ................
0040: 04 04 00 00 00 00 00 00 1C 04 00 00 08 04 00 00 ................
0050: 20 04 00 00 A0 05 00 00 04 02 01 04 08 10 20 00 ............. .
0060: 65 00 E9 03 00 00 00 00 01 03 7D 7E 32 01 00 00 e.........}~2...
0070: 25 84 00 00 01 08 00 00 F9 0C 00 00 00 00 00 00 %...............
0080: 06 00 00 00 00 D0 EC BF 00 00 00 00 00 00 EE BF ................
0090: 00 00 00 00 01 20 00 00 00 04 00 00 00 00 00 00 ..... ..........
00A0: 01 00 00 00 00 00 00 00 00 00 00 00 01 10 00 00 ................
00B0: 04 04 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................
00C0: 00 00 00 00 01 08 00 00 1C 04 00 00 00 00 00 00 ................
00D0: 01 20 00 00 08 04 00 00 00 00 00 00 01 40 00 00 . ...........@..
00E0: 20 04 00 00 00 00 00 00 01 80 00 00 A0 05 00 00 ...............
00F0: 00 00 00 00 ....
hopefully the table didnt get garbled by the mail client.
Justin P. Mattock
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