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

2014-06-05 Thread Don Slutz
On 06/05/14 12:27, Igor Mammedov wrote: On Thu, 5 Jun 2014 12:11:55 -0400 Don Slutz 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 fi

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

2014-06-05 Thread Don Slutz
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

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

2014-06-05 Thread Igor Mammedov
On Thu, 5 Jun 2014 12:11:55 -0400 Don Slutz 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 t