[Qemu-devel] 回复： Re: 回复： Re: W hich part of qemu responds to ACPI control method?

[bobooscar]

Thank you laszlo. however, after I got DSDT.dsl, I found that there is no “_PTS” method, even if “_TTS” “_GTS”.  

Then I go through all the acpi tables, still found no PTS/TTS methods:

    acpidump > acpidump.out

    acpixtract -a acpidump.out

    for file in `ls |grep dat`; do iasl -a $file; done

The guest os is redhat 6.1 hvm.

What does that mean? Does that mean this OS does not support sleep/wakeup(suspend/resume) with acpi? What caused this problem? Does that have anything to do with qemu? (I tried to add logs in hwsleep.c:acpi_enter_sleep_mode in the guest kernel code, and found that the os does not get here)

Thank you!

已从三星手机发送

-------- 原始邮件 --------
发件人： Laszlo Ersek <address@hidden> 
日期: 2013-07-03  16:01  (GMT+08:00) 
收件人： bobooscar <address@hidden> 
抄送： address@hidden 
主题： Re: 回复： Re: [Qemu-devel] Which part of qemu responds to ACPI control method? 
 

On 07/03/13 04:14, bobooscar wrote:
> Take the method “_PTS” for example, how could I know how it access a
> certain hardware, and what hardware it accesses? I am a newbie in this
> field, thanks in advance;)

In "POSIX-like" guests, you can dump the ACPI tables with the "acpidump"
utility (pmtools package), eg.

  acpidump --table DSDT --output DSDT.aml --binary

then decompile it with "iasl":

  iasl -d DSDT.aml

This creates "DSDT.dsl", a decompiled ACPI Source Language file. You can
interpret it by consulting the ACPI specification
<http://www.acpi.info/spec50.htm>.

Laszlo