Re: [Qemu-devel] [PATCH v2 17/23] q35: implement high SMRAM

2015-06-04 Thread Michael S. Tsirkin
On Wed, Jun 03, 2015 at 07:08:42PM +0200, Paolo Bonzini wrote: > When H_SMRAME is 1, low memory at 0xa is left alone by > SMM, and instead the chipset maps the 0xa-0xb window at > 0xfeda-0xfedb. This affects both the "non-SMM" view controlled > by D_OPEN and the SMM view contro

[Qemu-devel] [PATCH v2 17/23] q35: implement high SMRAM

2015-06-03 Thread Paolo Bonzini
When H_SMRAME is 1, low memory at 0xa is left alone by SMM, and instead the chipset maps the 0xa-0xb window at 0xfeda-0xfedb. This affects both the "non-SMM" view controlled by D_OPEN and the SMM view controlled by G_SMRAME, so add two new MemoryRegions and toggle the enabled/d