[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [RFC] new totalmem= boot parameter
On 19/07/2010 18:56, "Sarina Canelake" <sarina.canelake@xxxxxxxxxx> wrote: > We have a need for ensuring the total RAM available to [Xen / the kernel] at > boot is X MB because there are situations in which you wish to limit the > amount of RAM available to a box. The existing mem= option doesn't work > because it limits the maximum physical address, NOT the amount of available > RAM. Many, if not all, systems contain a substantial memory hole below 4 Gb, > typically a 0.5 or 1 Gb hole from 3-4 Gb. Thus, on a system with 6 Gb of RAM, > requesting mem=4096M will yield a box with maximum physical address in the 4 > Gb neighborhood but perhaps only 3 or 3.5 actual gigs of RAM available. It doesn't sound *very* useful. But then neither is mem= really. We can add something like this if you really need it. So what's the motivation? -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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