CVS commit: src/sys/arch

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Thu Jun 27 23:58:47 UTC 2024

Modified Files:
        src/sys/arch/amd64/amd64: machdep.c
        src/sys/arch/i386/i386: machdep.c

Log Message:
x86: Defer x86_rndseed until after pmap_bootstrap.

Loading the random seed, which is what x86_rndseed does, requires
direct map access on KASLR kernels, which requires pmap_bootstrap to
have run.

This had been broken in

amd64/machdep.c 1.359
i386/machdep.c 1.832

because we apparently don't have any automatic test setup for KASLR
kernels, which we should address.

This change shouldn't cause any security regression on kernels that
previously owrked, because none of the logic that now happens before
x86_rndseed uses the entropy pool anyway (uvm_md_init,
init_x86_clusters, xen_parse_cmdline).

PR port-amd64/58366


To generate a diff of this commit:
cvs rdiff -u -r1.368 -r1.369 src/sys/arch/amd64/amd64/machdep.c
cvs rdiff -u -r1.841 -r1.842 src/sys/arch/i386/i386/machdep.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.