[HN Gopher] RISC-V SBI and the full boot process
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RISC-V SBI and the full boot process
Author : snvzz
Score : 19 points
Date : 2023-09-10 22:10 UTC (50 minutes ago)
(HTM) web link (popovicu.com)
(TXT) w3m dump (popovicu.com)
| Taniwha wrote:
| It's worth understanding that the initial hard coded (pre
| OpenSBI) code on a real CPU (rather than an emulator like QEMU)
| is likely doing a bunch of things: -
| Initialising the DRAM controller and sizing memory -
| optionally doing some crypto auth of the OpenSBI/etc to make sure
| they're not bogus - Copying OpenSBI (and possibly a
| subsequent U-boot or kernel) into it from ROM
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(page generated 2023-09-10 23:00 UTC)