diff options
Diffstat (limited to 'sys/amd64/include/tss.h')
-rw-r--r-- | sys/amd64/include/tss.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/sys/amd64/include/tss.h b/sys/amd64/include/tss.h new file mode 100644 index 000000000000..12cb3a22e0e4 --- /dev/null +++ b/sys/amd64/include/tss.h @@ -0,0 +1,68 @@ +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * from: @(#)tss.h 5.4 (Berkeley) 1/18/91 + * $FreeBSD$ + */ + +#ifndef _MACHINE_TSS_H_ +#define _MACHINE_TSS_H_ 1 + +/* + * amd64 Context Data Type + * + * The alignment is pretty messed up here due to reuse of the original 32 bit + * fields. It might be worth trying to set the tss on a +4 byte offset to + * make the 64 bit fields aligned in practice. + */ +struct amd64tss { + u_int32_t tss_rsvd0; + u_int64_t tss_rsp0 __packed; /* kernel stack pointer ring 0 */ + u_int64_t tss_rsp1 __packed; /* kernel stack pointer ring 1 */ + u_int64_t tss_rsp2 __packed; /* kernel stack pointer ring 2 */ + u_int32_t tss_rsvd1; + u_int32_t tss_rsvd2; + u_int64_t tss_ist1 __packed; /* Interrupt stack table 1 */ + u_int64_t tss_ist2 __packed; /* Interrupt stack table 2 */ + u_int64_t tss_ist3 __packed; /* Interrupt stack table 3 */ + u_int64_t tss_ist4 __packed; /* Interrupt stack table 4 */ + u_int64_t tss_ist5 __packed; /* Interrupt stack table 5 */ + u_int64_t tss_ist6 __packed; /* Interrupt stack table 6 */ + u_int64_t tss_ist7 __packed; /* Interrupt stack table 7 */ + u_int32_t tss_rsvd3; + u_int32_t tss_rsvd4; + u_int16_t tss_rsvd5; + u_int16_t tss_iobase; /* io bitmap offset */ +}; + +#endif /* _MACHINE_TSS_H_ */ |