Date: Mon, 8 Sep 2014 04:51:04 GMT From: John Baldwin <jhb@FreeBSD.org> To: Perforce Change Reviews <perforce@FreeBSD.org> Subject: PERFORCE change 1199466 for review Message-ID: <201409080451.s884p42k026789@skunkworks.freebsd.org>
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http://p4web.freebsd.org/@@1199466?ac=10 Change 1199466 by jhb@jhb_ralph on 2014/08/28 12:34:36 Port the smap handler to i386. Affected files ... .. //depot/projects/smpng/sys/i386/i386/machdep.c#189 edit Differences ... ==== //depot/projects/smpng/sys/i386/i386/machdep.c#189 (text+ko) ==== @@ -3122,6 +3122,42 @@ pcpu->pc_acpi_id = 0xffffffff; } +static int +smap_sysctl_handler(SYSCTL_HANDLER_ARGS) +{ + struct bios_smap *smapbase; + struct bios_smap_xattr smap; + caddr_t kmdp; + uint32_t *smapattr; + int count, error, i; + + /* Retrieve the system memory map from the loader. */ + kmdp = preload_search_by_type("elf kernel"); + if (kmdp == NULL) + kmdp = preload_search_by_type("elf32 kernel"); + smapbase = (struct bios_smap *)preload_search_info(kmdp, + MODINFO_METADATA | MODINFOMD_SMAP); + if (smapbase == NULL) + return (0); + smapattr = (uint32_t *) = preload_search_info(kmdp, + MODINFO_METADATA | MODINFOMD_SMAP_XATTR); + count = *((u_int32_t *)smapbase - 1) / sizeof(*smapbase); + error = 0; + for (i = 0; i < count; i++) { + smap.base = smapbase[i].base; + smap.length = smapbase[i].length; + smap.type = smapbase[i].type; + if (smapattr != NULL) + smap.xattr = smapattr[i]; + else + smap.xattr = 0; + error = SYSCTL_OUT(req, &smap, sizeof(smap)); + } + return (error); +} +SYSCTL_PROC(_machdep, OID_AUTO, smap, CTLTYPE_OPAQUE|CTLFLAG_RD, NULL, 0, + smap_sysctl_handler, "S,bios_smap_xattr", "Raw BIOS SMAP data"); + void spinlock_enter(void) {
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