Messages in this thread | | | Date | Tue, 25 Jun 2013 12:28:38 -0700 | Subject | Re: [RFC 0/2] Delay initializing of large sections of memory | From | Yinghai Lu <> |
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On Tue, Jun 25, 2013 at 12:09 PM, H. Peter Anvin <hpa@zytor.com> wrote: >> According to Intel SDM, CPU could support 52bits physical addressing. >> >> So how linux kernel will handle it? as we only have 48bits virtual addressing. >> > > The Linux kernel will not support more than V-2 bits of physical address > space for any number V of virtual address bits.
ok, then will need cpu support 57bits virtual addressing, and level 5 page table?
Yinghai
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