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| From: | Paolo Bonzini |
| Subject: | Re: [Qemu-devel] [PATCH 4/5] x86: Allow physical address bits to be set |
| Date: | Fri, 17 Jun 2016 11:54:45 +0200 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.1.0 |
On 17/06/2016 11:37, Dr. David Alan Gilbert wrote: >>> The existing 40-bit default looks like a problem for 36-bit >>> > > systems. Do you know what kind of systems have 36 bits only? Only >>> > > old ones, or recent ones too? If only old ones, how old? >> > >> > My Sandy Bridge (~2.5 year old) laptop is 36 bits; I've seen >> > some other single-socket 39bit machines (Ivy bridge and I think newer). > and it looks like the single socket Xeons are as well; Xeon E3-1225 > I just found has 36 bit physical. The Xeon E3 is really little more than a Core i7 (for example it doesn't have APICv). Laurent checked a single-socket Sandy Bridge Xeon E5-1620 and it has 46. Paolo
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