>Hello,
>
>if I apply this patch and revert the bios to the one before 4423 I can
>install Windows 2000 to with acpi. But after the installation it shows
>the hal without acpi. The good thing whilst installing I don't have to
>evoke my kvm script again because restart works.
>
>Daniel Hecken
It worked for me with the svn head bios and without the patch.
The guest OS cannot use the ACPI but the no-acpi flag is not required
anymore.
Dor.
>
>
>Dor Laor schrieb:
>>>> Gregory Haskins wrote:
>>>>> This patch initializes the PIIX3 IDE controllers IDE channels as
>>>> enabled. They were previously unconfigured by QEMU.
>>>>> IDE devices have been broken on our local lab systems since the
>>>> introduction of QEMU 0.9.0 (KVM-14). Tracing the Linux driver for
>> PIIX3
>>>> initialization revealed that the "enabled" bits (bit 7 in the
>> PCI-CONFIG
>>>> space at address 0x41 and 0x43, port 0 and 1 respectively) were not
>> set.
>>>> In a bare-metal system, it would typically be the role of the BIOS
to
>>>> enable something like this, so this solution may be a hack. I
>> speculate
>>>> that the real bug may be something introduced into Bochs about the
>> same
>>>> time as the 0.9.0 deployment, but I have not investigated this.
>>>> Nonetheless, unless there is a specific run-time switch to
>> enable/disable
>>>> the IDE channels, initializing them in QEMU vs Bochs is probably 6
of
>> one,
>>>> half dozen of the other.
>>>>>
>>>> Is the bug present in stock qemu-0.9.0?
>>>>
>>>> I'm no acpi expert, but this may be related to our acpi breakage.
>>> I thought so too and guess what?
>>> We can install Windows with acpi! (The installation is running now,
>> didn't
>>> complete yet but it passed the stage it had stucked before!
>>
>> Opsss,
>> I was too fast on the trigger; it didn't solve anything regarding
acpi.
>> No long ago we had a problem on the trunk with windows installation.
>> It failed if the flag -no-acpi was not used.
>> When I checked your patch the problem disappeared but when windows
>> installation completed I discovered that it didn't use the acpi HAL.
>> So I checked without the patch and got the same result too.
>> Probably recent commits fixed the crash and from now the -no-acpi
flag
>> is not required during installation.
>> Well it was a long shot.
>>
>>> Good job.
>>>
>>>> --
>>>> Do not meddle in the internals of kernels, for they are subtle and
>> quick
>>> to
>>>> panic.
>>>>
>>>>
>>>>
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>
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