diff options
Diffstat (limited to 'usr/src/uts/intel/sys/tss.h')
| -rw-r--r-- | usr/src/uts/intel/sys/tss.h | 56 |
1 files changed, 46 insertions, 10 deletions
diff --git a/usr/src/uts/intel/sys/tss.h b/usr/src/uts/intel/sys/tss.h index e3eef4995f..ead5e9ee14 100644 --- a/usr/src/uts/intel/sys/tss.h +++ b/usr/src/uts/intel/sys/tss.h @@ -6,8 +6,6 @@ #ifndef _SYS_TSS_H #define _SYS_TSS_H -#pragma ident "%Z%%M% %I% %E% SMI" - #ifdef __cplusplus extern "C" { #endif @@ -54,6 +52,9 @@ extern "C" { * from: @(#)tss.h 5.4 (Berkeley) 1/18/91 * $FreeBSD: src/sys/i386/include/tss.h,v 1.13 2002/09/23 05:04:05 peter Exp $ */ +/* + * Copyright 2011 Joyent, Inc. All rights reserved. + */ /* * Maximum I/O address that will be in TSS bitmap @@ -63,14 +64,18 @@ extern "C" { #ifndef _ASM /* - * Task state segment (tss). Holds the processor state assoicated with - * a task. + * Task state segment (tss). Holds the processor state assoicated with a task. + * + * Historically, this header only exposed a struct tss that was relevant to the + * specific Intel architecture that we were deploying on. However, the tss + * structures are defined by the Intel Architecture and other consumers would + * like to use them. Rather than requiring them to duplicate all of this + * information, we instead expose each version under different names but in a + * backwards compatible manner. */ -#if defined(__amd64) - #pragma pack(4) -struct tss { +struct tss64 { uint32_t tss_rsvd0; /* reserved, ignored */ uint64_t tss_rsp0; /* stack pointer CPL = 0 */ uint64_t tss_rsp1; /* stack pointer CPL = 1 */ @@ -89,9 +94,7 @@ struct tss { }; #pragma pack() -#elif defined(__i386) - -struct tss { +struct tss32 { uint16_t tss_link; /* 16-bit prior TSS selector */ uint16_t tss_rsvd0; /* reserved, ignored */ uint32_t tss_esp0; @@ -132,6 +135,39 @@ struct tss { uint16_t tss_bitmapbase; /* io permission bitmap base address */ }; +struct tss16 { + uint16_t tss_link; + uint16_t tss_sp0; + uint16_t tss_ss0; + uint16_t tss_sp1; + uint16_t tss_ss1; + uint16_t tss_sp2; + uint16_t tss_ss2; + uint16_t tss_ip; + uint16_t tss_flag; + uint16_t tss_ax; + uint16_t tss_cx; + uint16_t tss_dx; + uint16_t tss_bx; + uint16_t tss_sp; + uint16_t tss_bp; + uint16_t tss_si; + uint16_t tss_di; + uint16_t tss_es; + uint16_t tss_cs; + uint16_t tss_ss; + uint16_t tss_ds; + uint16_t tss_ldt; +}; + +#if defined(__amd64) + +typedef struct tss64 tss_t; + +#elif defined(__i386) + +typedef struct tss32 tss_t; + #endif /* __i386 */ #endif /* !_ASM */ |