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riscv: adjust physmem reservation

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Make sure we do this BEFORE pmap_bootstrap().

Reviewed by:	markj, jhb
MFC after:	3 days
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D45325
This commit is contained in:
Mitchell Horne 2024-06-14 14:57:28 -03:00
parent cadc9c7db7
commit 0e4e77072f
1 changed files with 5 additions and 4 deletions
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9
sys/riscv/riscv/machdep.c
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@ -549,10 +549,6 @@ initriscv(struct riscv_bootparams *rvbp)
cache_setup();
/* Bootstrap enough of pmap to enter the kernel proper */
kernlen = (lastaddr - KERNBASE);
pmap_bootstrap(rvbp->kern_l1pt, rvbp->kern_phys, kernlen);
#ifdef FDT
/*
* XXX: Unconditionally exclude the lowest 2MB of physical memory, as
@ -565,6 +561,11 @@ initriscv(struct riscv_bootparams *rvbp)
physmem_exclude_region(mem_regions[0].mr_start, L2_SIZE,
EXFLAG_NODUMP | EXFLAG_NOALLOC);
#endif
/* Bootstrap enough of pmap to enter the kernel proper */
kernlen = (lastaddr - KERNBASE);
pmap_bootstrap(rvbp->kern_l1pt, rvbp->kern_phys, kernlen);
physmem_init_kernel_globals();
/* Establish static device mappings */