Re: [Qemu-devel] [PATCH v4 2/3] pc & q35: Add new machine opt max-ram-below-4g

[Don Slutz <dslutz@verizon.com>]

On 06/05/14 12:27, Igor Mammedov wrote:
> On Thu,  5 Jun 2014 12:11:55 -0400
> Don Slutz <dslutz@verizon.com> wrote:
>
>> This is a pc & q35 only machine opt.  One use is to allow for more
>> ram in a 32bit guest for example:
>>
>> -machine pc,max-ram-below-4g=3.75G
>>
>> If you add enough PCI devices then all mmio for them will not fit
>> below 4G which may not be the layout the user wanted. This allows
>> you to increase the below 4G address space that PCI devices can use
>> (aka decrease ram below 4G) and therefore in more cases not have any
>> mmio that is above 4G.
>>
>> For example using "-machine pc,max-ram-below-4g=2G" on the command
>> line will limit the amount of ram that is below 4G to 2G.
>>
>> Signed-off-by: Don Slutz <dslutz@verizon.com>
> this patch would look better if rebased on top of
> http://lists.gnu.org/archive/html/qemu-devel/2014-06/msg00133.html
> and would use PCMachine type to add PC specific "max-ram-below-4g" property.

I somehow missed this patch series.  Will work on a rebase on top of this.
     -Don Slutz

>