/*- * Copyright (c) 1990 The Regents of the University of California. * Copyright (c) 2003 Peter Wemm. * Copyright (c) 2008 The DragonFly Project. * 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: @(#)pcb.h 5.10 (Berkeley) 5/12/91 * $FreeBSD: src/sys/amd64/include/pcb.h,v 1.57 2004/01/28 23:54:31 peter Exp $ * $DragonFly: src/sys/platform/pc64/include/pcb.h,v 1.3 2008/08/29 17:07:17 dillon Exp $ */ #ifndef _MACHINE_PCB_H_ #define _MACHINE_PCB_H_ /* * x86_64 process control block * * WARNING! union savefpu has a 64-byte alignment requirement built-in * which will adjust the size of this structure. */ #include <machine/npx.h> struct pcb { register_t padxx[7]; register_t pcb_cr3_iso; /* isolated U (+minimal K) PML4e */ register_t pcb_cr3; /* U+K PML4e */ register_t pcb_r15; register_t pcb_r14; register_t pcb_r13; register_t pcb_r12; register_t pcb_rbp; register_t pcb_rsp; register_t pcb_rbx; register_t pcb_rip; register_t pcb_rsi; register_t pcb_rdi; register_t pcb_rflags; register_t pcb_fsbase; register_t pcb_gsbase; u_long pcb_flags; u_int32_t pcb_ds; u_int32_t pcb_es; u_int32_t pcb_fs; u_int32_t pcb_gs; u_int64_t pcb_dr0; u_int64_t pcb_dr1; u_int64_t pcb_dr2; u_int64_t pcb_dr3; u_int64_t pcb_dr6; u_int64_t pcb_dr7; struct pcb_ldt *pcb_ldt; union savefpu pcb_save; caddr_t pcb_onfault; /* copyin/out fault recovery */ register_t pcb_onfault_sp; /* validate onfault */ register_t pcb_unused[4]; /* kgdb compatibility expansion */ struct pcb_ext *pcb_ext; /* optional pcb extension */ }; #define PCB_DBREGS 0x00000002 /* process using debug registers */ #define PCB_FPUINITDONE 0x00000008 /* fpu state is initialized */ #define PCB_ISOMMU 0x00000010 /* MMU isolation */ #define FP_SOFTFP 0x01 /* process using soft flt emulator */ #define FP_VIRTFP 0x04 /* vkernel wants exception */ #define SPEC_CTRL_DUMMY_IBPB SPEC_CTRL_DUMMY1 #define SPEC_CTRL_DUMMY_ENABLE SPEC_CTRL_DUMMY2 #define SPEC_CTRL_MDS_ENABLE SPEC_CTRL_DUMMY3 #ifdef _KERNEL void savectx(struct pcb *); #endif #endif /* _MACHINE_PCB_H_ */
