Date: Thu, 24 May 2018 14:55:50 +0000 (UTC) From: Andrew Turner <andrew@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r334155 - head/sys/arm64/arm64 Message-ID: <201805241455.w4OEtoCa019417@repo.freebsd.org>
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Author: andrew Date: Thu May 24 14:55:50 2018 New Revision: 334155 URL: https://svnweb.freebsd.org/changeset/base/334155 Log: Exclude memory from the /reserved-memory mappings with the no-map property 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 Modified: head/sys/arm64/arm64/machdep.c Modified: head/sys/arm64/arm64/machdep.c ============================================================================== --- head/sys/arm64/arm64/machdep.c Thu May 24 14:16:22 2018 (r334154) +++ head/sys/arm64/arm64/machdep.c Thu May 24 14:55:50 2018 (r334155) @@ -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 */
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