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NixOS RISC-V

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NixOS on RISC-V https://wiki.nixos.org/wiki/RISC-V https://pad.lassul.us/NixOS-riscv64-linux https://github.com/orgs/NixOS/teams/risc-v66 Servers

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12 Nov 2025
@dramforever:matrix.orgdramforevercurrently twiddling thumbs waiting for zhihe a210 and spacemit k306:52:56
@rosscomputerguy:matrix.orgTristan RossNice, I wonder what has the most performance in the consumer space06:54:08
@rosscomputerguy:matrix.orgTristan RossI'm looking forward to Tenstorrent's Ascalon, looks interesting but it'll be some time.06:54:43
@dramforever:matrix.orgdramforever"consumer"06:55:02
@rosscomputerguy:matrix.orgTristan Rosslol, if I can buy it I consider that consumer06:55:55
@vixea:matrix.orgvixeaI wish to consume the whole rva23 soc market07:18:26
@vixea:matrix.orgvixea But yea can't wait for Atlantis 07:23:53
@vixea:matrix.orgvixeaEven if it's the "S"(4 wide) before the changed the image it would seem07:27:33
@vixea:matrix.orgvixeaOr at least that's what I'm guessing it's what it is07:28:03
@vixea:matrix.orgvixea * Or at least that's what I'm guessing it's what it is, maybe it's the 6 wide version either way you won't know till it's out anyway 07:28:56
@vixea:matrix.orgvixeaOh heh reread the slides it's Ascalon-X07:30:20
@alex:tunstall.xyzAlex
In reply to @joerg:thalheim.io
What's allowed on RISC-V?
I haven't done anything outside of M mode, but it seems like the manuals (vol 2 - privileged, chapters 4.3, 4.4, and 4.5) state that pages must be aligned to the page boundary, which is 4 KiB at the smallest level of pages.
0xf000 is appropriately aligned, so I see no reason for the ISA to disallow it.
AFAICT there are no ISA-level restrictions on what virtual addresses can be used.
10:43:09

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