[U-Boot] Move Cache-As-RAM memory from area mapped to ROM in QEMU

Heinrich Schuchardt
2017-11-14T17:32:00Z

On 11/13/2017 11:23 AM, Anton Gerasimov wrote:
> Thank you Heinrich, I can confirm that current u-boot master works
> without reverting aaaa55751ab1. I had problems with u-boot v2017.11-rc2
> apparently.

Could you, please, resubmit the patch with an updated commit message.

Regards

Heinrich
>
> Best regards,
> Anton Gerasimov
>
> On 11/11/2017 12:08 PM, Heinrich Schuchardt wrote:
>> On 11/10/2017 06:51 PM, Anton Gerasimov wrote:
>>> ROM has been made read-only in qemu recently (namely commit
>>> 208fa0e43645edd0b0d8f838857dfc79daff40a8), so this patch restores
>>> compatibility between u-boot and qemu. It is still broken for me
>>> unless I set CONFIG_SMP=n and disable lapic (i.e. revert patch
>>> aaaa55751ab1e5a5cfa0962d604593a7e6f33ff6 in u-boot), but these are
>>> separate issues
>>
>> I could not reproduce that reverting aaaa55751ab1 is necessary.
>> Your patch and CONFIG_SMP=n was suffcient to start U-Boot with
>> qemu-system-x86_64 version 2.10.1(Debian 1:2.10.0+dfsg-2)
>>
>> Tested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
>>
>>>
>>> Signed-off-by: Anton Gerasimov <anton@advancedtelematic.com>
>>> ---
>>>   arch/x86/cpu/qemu/Kconfig | 2 +-
>>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/arch/x86/cpu/qemu/Kconfig b/arch/x86/cpu/qemu/Kconfig
>>> index 6808c9a6b9..f4b9922a34 100644
>>> --- a/arch/x86/cpu/qemu/Kconfig
>>> +++ b/arch/x86/cpu/qemu/Kconfig
>>> @@ -11,7 +11,7 @@ if QEMU
>>>     config SYS_CAR_ADDR
>>>       hex
>>> -    default 0xd0000
>>> +    default 0x10000
>>>     config SYS_CAR_SIZE
>>>       hex
>>>
>>
>