Date: Wed, 13 Apr 2016 11:43:04 +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: r297917 - head/sys/arm64/include Message-ID: <201604131143.u3DBh4Tk021498@repo.freebsd.org>
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Author: andrew Date: Wed Apr 13 11:43:03 2016 New Revision: 297917 URL: https://svnweb.freebsd.org/changeset/base/297917 Log: Document the memory ranges within the kernel region to help with debugging to track down which region an address is from. Obtained from: ABT Systems Ltd Sponsored by: The FreeBSD Foundation Modified: head/sys/arm64/include/vmparam.h Modified: head/sys/arm64/include/vmparam.h ============================================================================== --- head/sys/arm64/include/vmparam.h Wed Apr 13 11:24:24 2016 (r297916) +++ head/sys/arm64/include/vmparam.h Wed Apr 13 11:43:03 2016 (r297917) @@ -128,14 +128,19 @@ * We use the full 48 bits for each region, however the kernel may only use * a limited range within this space. * - * Upper region: 0xffffffffffffffff - * 0xffff000000000000 + * Upper region: 0xffffffffffffffff Top of virtual memory * - * Hole: 0xfffeffffffffffff - * 0x0001000000000000 + * 0xfffffeffffffffff End of DMAP + * 0xfffffd0000000000 Start of DMAP * - * Lower region: 0x0000ffffffffffff - * 0x0000000000000000 + * 0xffff007fffffffff End of KVA + * 0xffff000000000000 Kernel base address & start of KVA + * + * Hole: 0xfffeffffffffffff + * 0x0001000000000000 + * + * Lower region: 0x0000ffffffffffff End of user address space + * 0x0000000000000000 Start of user address space * * We use the upper region for the kernel, and the lower region for userland. *
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