1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1995 Bruce D. Evans. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the author nor the names of contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #ifdef __i386__ 33 #include <i386/md_var.h> 34 #else /* !__i386__ */ 35 36 #ifndef _MACHINE_MD_VAR_H_ 37 #define _MACHINE_MD_VAR_H_ 38 39 #include <x86/x86_var.h> 40 41 extern char ctx_switch_xsave[]; 42 extern char ctx_switch_xsave32[]; 43 extern int hw_lower_amd64_sharedpage; 44 extern int hw_ibrs_disable; 45 extern int hw_ssb_disable; 46 extern int nmi_flush_l1d_sw; 47 extern int syscall_ret_l1d_flush_mode; 48 extern int lass_enabled; 49 extern int ia32_splitlock; 50 extern int ia32_splitlock_force; 51 52 extern vm_paddr_t intel_graphics_stolen_base; 53 extern vm_paddr_t intel_graphics_stolen_size; 54 55 extern int la57; 56 extern int prefer_uva_la48; 57 58 extern vm_paddr_t kernphys; 59 extern vm_paddr_t KERNend; 60 61 extern bool efi_boot; 62 63 struct __mcontext; 64 struct pcpu; 65 struct savefpu; 66 struct sysentvec; 67 struct trapframe; 68 69 void amd64_conf_fast_syscall(void); 70 void amd64_cpu_init_fred(void); 71 void amd64_cpu_init_msr_memctl(void); 72 void amd64_db_resume_dbreg(void); 73 void amd64_init_splitlock(void); 74 vm_paddr_t amd64_loadaddr(void); 75 void amd64_lower_shared_page(struct sysentvec *); 76 void amd64_bsp_pcpu_init1(struct pcpu *pc); 77 void amd64_bsp_pcpu_init2(uint64_t rsp0); 78 void amd64_bsp_ist_init(struct pcpu *pc); 79 void amd64_syscall(struct thread *td, int traced); 80 void amd64_syscall_ret_flush_l1d(int error); 81 void amd64_syscall_ret_flush_l1d_recalc(void); 82 void cpu_init_small_core(void); 83 void doreti_iret(void) __asm(__STRING(doreti_iret)); 84 void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault)); 85 void flush_l1d_sw_abi(void); 86 void ia32_syscall(struct trapframe *); 87 void ld_ds(void) __asm(__STRING(ld_ds)); 88 void ld_es(void) __asm(__STRING(ld_es)); 89 void ld_fs(void) __asm(__STRING(ld_fs)); 90 void ld_gs(void) __asm(__STRING(ld_gs)); 91 void ld_fsbase(void) __asm(__STRING(ld_fsbase)); 92 void ld_gsbase(void) __asm(__STRING(ld_gsbase)); 93 void ds_load_fault(void) __asm(__STRING(ds_load_fault)); 94 void es_load_fault(void) __asm(__STRING(es_load_fault)); 95 void fs_load_fault(void) __asm(__STRING(fs_load_fault)); 96 void gs_load_fault(void) __asm(__STRING(gs_load_fault)); 97 void fsbase_load_fault(void) __asm(__STRING(fsbase_load_fault)); 98 void gsbase_load_fault(void) __asm(__STRING(gsbase_load_fault)); 99 void fpstate_drop(struct thread *td); 100 void pagezero(void *addr); 101 void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int ist); 102 struct savefpu *get_pcb_user_save_td(struct thread *td); 103 struct savefpu *get_pcb_user_save_pcb(struct pcb *pcb); 104 void pci_early_quirks(void); 105 void get_fpcontext(struct thread *td, struct __mcontext *mcp, 106 char **xfpusave, size_t *xfpusave_len); 107 int set_fpcontext(struct thread *td, struct __mcontext *mcp, 108 char *xfpustate, size_t xfpustate_len); 109 void enable_splitlock_ac(void); 110 void enable_splitlock(struct thread *td); 111 void disable_splitlock_ac(void); 112 void disable_splitlock(struct thread *td); 113 void exec_splitlock(struct thread *td); 114 115 void wrmsr_early_safe_start(void); 116 void wrmsr_early_safe_end(void); 117 int wrmsr_early_safe(u_int msr, uint64_t data); 118 119 enum uiomove_mem_req { 120 UIO_MEM_KMEM = 101, 121 UIO_MEM_MEM, 122 }; 123 int uiomove_mem(enum uiomove_mem_req req, struct uio *uio); 124 125 #endif /* !_MACHINE_MD_VAR_H_ */ 126 127 #endif /* __i386__ */ 128