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Exclude memory from the /reserved-memory mappings with the no-map property

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set. This memory must not be mapped by the operating system other than
under control of the device driver.

Obtained from:	ABT Systems Ltd
Sponsored by:	Turing Robotic Industries
This commit is contained in:
Andrew Turner 2018-05-24 14:55:50 +00:00
parent be37ee791f
commit c602678b57
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=334155
1 changed files with 3 additions and 0 deletions
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3
sys/arm64/arm64/machdep.c
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@ -1063,6 +1063,9 @@ initarm(struct arm64_bootparams *abp)
&physmap_idx);
arm_physmem_hardware_regions(mem_regions, mem_regions_sz);
}
if (fdt_get_reserved_mem(mem_regions, &mem_regions_sz) == 0)
arm_physmem_exclude_regions(mem_regions, mem_regions_sz,
EXFLAG_NODUMP | EXFLAG_NOALLOC);
#endif
/* Set the pcpu data, this is needed by pmap_bootstrap */