diff options
Diffstat (limited to 'usr/src/uts/common/brand/lx/os/lx_misc.c')
| -rw-r--r-- | usr/src/uts/common/brand/lx/os/lx_misc.c | 29 |
1 files changed, 9 insertions, 20 deletions
diff --git a/usr/src/uts/common/brand/lx/os/lx_misc.c b/usr/src/uts/common/brand/lx/os/lx_misc.c index 375b99fa46..f9da4aaaaa 100644 --- a/usr/src/uts/common/brand/lx/os/lx_misc.c +++ b/usr/src/uts/common/brand/lx/os/lx_misc.c @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2006 Sun Microsystems, Inc. All rights reserved. + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -286,19 +286,13 @@ lx_forklwp(klwp_t *srclwp, klwp_t *dstlwp) static void lx_save(klwp_t *t) { - static user_desc_t null_desc; - static int inited; - user_desc_t *gdt; int i; - if (inited == 0) { - bzero(&null_desc, sizeof (null_desc)); - inited = 1; - } - - gdt = cpu_get_gdt(); +#if defined(__amd64) + reset_sregs(); +#endif for (i = 0; i < LX_TLSNUM; i++) - gdt[GDT_TLSMIN + i] = null_desc; + gdt_update_usegd(GDT_TLSMIN + i, &null_udesc); } /* @@ -308,32 +302,27 @@ static void lx_restore(klwp_t *t) { struct lx_lwp_data *lwpd = lwptolxlwp(t); - user_desc_t *gdt; user_desc_t *tls; int i; ASSERT(lwpd); - gdt = cpu_get_gdt(); tls = lwpd->br_tls; for (i = 0; i < LX_TLSNUM; i++) - gdt[GDT_TLSMIN + i] = tls[i]; + gdt_update_usegd(GDT_TLSMIN + i, &tls[i]); } void lx_set_gdt(int entry, user_desc_t *descrp) { - user_desc_t *gdt = cpu_get_gdt(); - gdt[entry] = *descrp; + gdt_update_usegd(entry, descrp); } void lx_clear_gdt(int entry) { - user_desc_t *gdt = cpu_get_gdt(); - - bzero(&gdt[entry], sizeof (user_desc_t)); + gdt_update_usegd(entry, &null_udesc); } longlong_t @@ -377,7 +366,7 @@ lx_fixsegreg(greg_t sr, model_t datamodel) #if defined(__amd64) return (datamodel == DATAMODEL_ILP32 ? (sr | SEL_TI_LDT | SEL_UPL) : 0); #elif defined(__i386) - datamodel = datamodel; /* datamodel currently unused for 32-bit */ + datamodel = datamodel; /* datamodel currently unused for 32-bit */ return (sr | SEL_TI_LDT | SEL_UPL); #endif /* __amd64 */ } |