Date: Fri, 24 Sep 2010 19:31:08 +0000 (UTC) From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r213133 - head/sys/sys Message-ID: <201009241931.o8OJV8B4037346@svn.freebsd.org>
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Author: pjd Date: Fri Sep 24 19:31:08 2010 New Revision: 213133 URL: http://svn.freebsd.org/changeset/base/213133 Log: Add three GPT attributes: GPT_ENT_ATTR_BOOTME - this is bootable partition GPT_ENT_ATTR_BOOTONCE - try to boot only once from this partition GPT_ENT_ATTR_BOOTFAILED - set this flag if we cannot boot from partition containing GPT_ENT_ATTR_BOOTONCE flag; note that if we cannot boot from partition that contains only GPT_ENT_ATTR_BOOTME flag, the GPT_ENT_ATTR_BOOTFAILED flag won't be set According to wikipedia Microsoft TechNet says that attributes are divided into two halves: the lower 4 bytes representing partition independent attributes, and the upper 4 bytes are partition type dependent. Microsoft is already using bits 60 (read-only), 62 (hidden) and 63 (do not automount) and I'd like to not collide with those, so we are using bit 59 (bootme), 58 (bootonce) and 57 (bootfailed). Reviewed by: arch (Message-ID: <20100917234542.GE1902@garage.freebsd.pl>) MFC after: 2 weeks Modified: head/sys/sys/gpt.h Modified: head/sys/sys/gpt.h ============================================================================== --- head/sys/sys/gpt.h Fri Sep 24 19:30:34 2010 (r213132) +++ head/sys/sys/gpt.h Fri Sep 24 19:31:08 2010 (r213133) @@ -65,6 +65,9 @@ struct gpt_ent { uint64_t ent_lba_end; uint64_t ent_attr; #define GPT_ENT_ATTR_PLATFORM (1ULL << 0) +#define GPT_ENT_ATTR_BOOTME (1ULL << 59) +#define GPT_ENT_ATTR_BOOTONCE (1ULL << 58) +#define GPT_ENT_ATTR_BOOTFAILED (1ULL << 57) uint16_t ent_name[36]; /* UTF-16. */ };
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