Date: Mon, 22 Nov 2010 07:59:16 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org Cc: Sean Bruno <seanbru@yahoo-inc.com> Subject: Re: 40 vs 44 bit memory addressing HP DL580/980 Message-ID: <201011220759.16082.jhb@freebsd.org> In-Reply-To: <1290387926.16558.1283.camel@home-yahoo> References: <1290387926.16558.1283.camel@home-yahoo>
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On Sunday, November 21, 2010 8:05:26 pm Sean Bruno wrote: > Looks like these HP boxes have the capability to do 44 bit memory > addressing if configured to do so from the BIOS. > > Is anyone interested in any data from that setting? Does it boot ok? :) The MTRR code should handle that (there is a CPUID field that tells the OS how many bits are significant). Not sure if there are any places in the pmap that assume 40 bits, but a test boot is certainly worth trying. -- John Baldwin
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