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apic_vector.S
(6.43 KB)
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atpic_vector.S
(2.43 KB)
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bios.c
(3.28 KB)
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bpf_jit_machdep.c
(12.78 KB)
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bpf_jit_machdep.h
(12.75 KB)
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copyout.c
(6.44 KB)
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cpu_switch.S
(11.5 KB)
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db_disasm.c
(49.67 KB)
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db_interface.c
(2.71 KB)
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db_trace.c
(14.63 KB)
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efirt_machdep.c
(9.84 KB)
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efirt_support.S
(3.14 KB)
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elf_machdep.c
(11.17 KB)
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exception.S
(34.76 KB)
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fpu.c
(34.27 KB)
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gdb_machdep.c
(5.46 KB)
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genassym.c
(11.31 KB)
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in_cksum.c
(6.28 KB)
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initcpu.c
(10.08 KB)
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io.c
(1.82 KB)
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locore.S
(3.82 KB)
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machdep.c
(72.71 KB)
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mem.c
(6.38 KB)
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minidump_machdep.c
(10.99 KB)
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mp_machdep.c
(29.79 KB)
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mpboot.S
(7.85 KB)
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pmap.c
(310.68 KB)
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prof_machdep.c
(8.55 KB)
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ptrace_machdep.c
(6.51 KB)
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sigtramp.S
(1.93 KB)
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support.S
(33.77 KB)
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sys_machdep.c
(20.26 KB)
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trap.c
(32.49 KB)
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uio_machdep.c
(4.22 KB)
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uma_machdep.c
(2.35 KB)
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vm_machdep.c
(18.53 KB)
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xen-locore.S
(6.12 KB)
Editing: copyout.c
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2018 The FreeBSD Foundation * All rights reserved. * * This software was developed by Konstantin Belousov <kib@FreeBSD.org> * under sponsorship from the FreeBSD Foundation. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <sys/systm.h> #include <machine/md_var.h> #include <machine/specialreg.h> #include <x86/ifunc.h> int fubyte_nosmap(volatile const void *base); int fubyte_smap(volatile const void *base); DEFINE_IFUNC(, int, fubyte, (volatile const void *)) { return ((cpu_stdext_feature & CPUID_STDEXT_SMAP) != 0 ? fubyte_smap : fubyte_nosmap); } int fuword16_nosmap(volatile const void *base); int fuword16_smap(volatile const void *base); DEFINE_IFUNC(, int, fuword16, (volatile const void *)) { return ((cpu_stdext_feature & CPUID_STDEXT_SMAP) != 0 ? fuword16_smap : fuword16_nosmap); } int fueword_nosmap(volatile const void *base, long *val); int fueword_smap(volatile const void *base, long *val); DEFINE_IFUNC(, int, fueword, (volatile const void *, long *)) { return ((cpu_stdext_feature & CPUID_STDEXT_SMAP) != 0 ? fueword_smap : fueword_nosmap); } DEFINE_IFUNC(, int, fueword64, (volatile const void *, int64_t *)) { return ((cpu_stdext_feature & CPUID_STDEXT_SMAP) != 0 ? fueword_smap : fueword_nosmap); } int fueword32_nosmap(volatile const void *base, int32_t *val); int fueword32_smap(volatile const void *base, int32_t *val); DEFINE_IFUNC(, int, fueword32, (volatile const void *, int32_t *)) { return ((cpu_stdext_feature & CPUID_STDEXT_SMAP) != 0 ? fueword32_smap : fueword32_nosmap); } int subyte_nosmap(volatile void *base, int byte); int subyte_smap(volatile void *base, int byte); DEFINE_IFUNC(, int, subyte, (volatile void *, int)) { return ((cpu_stdext_feature & CPUID_STDEXT_SMAP) != 0 ? subyte_smap : subyte_nosmap); } int suword16_nosmap(volatile void *base, int word); int suword16_smap(volatile void *base, int word); DEFINE_IFUNC(, int, suword16, (volatile void *, int)) { return ((cpu_stdext_feature & CPUID_STDEXT_SMAP) != 0 ? suword16_smap : suword16_nosmap); } int suword32_nosmap(volatile void *base, int32_t word); int suword32_smap(volatile void *base, int32_t word); DEFINE_IFUNC(, int, suword32, (volatile void *, int32_t)) { return ((cpu_stdext_feature & CPUID_STDEXT_SMAP) != 0 ? suword32_smap : suword32_nosmap); } int suword_nosmap(volatile void *base, long word); int suword_smap(volatile void *base, long word); DEFINE_IFUNC(, int, suword, (volatile void *, long)) { return ((cpu_stdext_feature & CPUID_STDEXT_SMAP) != 0 ? suword_smap : suword_nosmap); } DEFINE_IFUNC(, int, suword64, (volatile void *, int64_t)) { return ((cpu_stdext_feature & CPUID_STDEXT_SMAP) != 0 ? suword_smap : suword_nosmap); } int casueword32_nosmap(volatile uint32_t *base, uint32_t oldval, uint32_t *oldvalp, uint32_t newval); int casueword32_smap(volatile uint32_t *base, uint32_t oldval, uint32_t *oldvalp, uint32_t newval); DEFINE_IFUNC(, int, casueword32, (volatile uint32_t *, uint32_t, uint32_t *, uint32_t)) { return ((cpu_stdext_feature & CPUID_STDEXT_SMAP) != 0 ? casueword32_smap : casueword32_nosmap); } int casueword_nosmap(volatile u_long *p, u_long oldval, u_long *oldvalp, u_long newval); int casueword_smap(volatile u_long *p, u_long oldval, u_long *oldvalp, u_long newval); DEFINE_IFUNC(, int, casueword, (volatile u_long *, u_long, u_long *, u_long)) { return ((cpu_stdext_feature & CPUID_STDEXT_SMAP) != 0 ? casueword_smap : casueword_nosmap); } #undef copyinstr #undef copyin #undef copyout int copyinstr_nosmap(const void *udaddr, void *kaddr, size_t len, size_t *lencopied); int copyinstr_smap(const void *udaddr, void *kaddr, size_t len, size_t *lencopied); DEFINE_IFUNC(, int, copyinstr, (const void *, void *, size_t, size_t *)) { return ((cpu_stdext_feature & CPUID_STDEXT_SMAP) != 0 ? copyinstr_smap : copyinstr_nosmap); } int copyin_nosmap_std(const void *udaddr, void *kaddr, size_t len); int copyin_smap_std(const void *udaddr, void *kaddr, size_t len); int copyin_nosmap_erms(const void *udaddr, void *kaddr, size_t len); int copyin_smap_erms(const void *udaddr, void *kaddr, size_t len); DEFINE_IFUNC(, int, copyin, (const void *, void *, size_t)) { switch (cpu_stdext_feature & (CPUID_STDEXT_SMAP | CPUID_STDEXT_ERMS)) { case CPUID_STDEXT_SMAP: return (copyin_smap_std); case CPUID_STDEXT_ERMS: return (copyin_nosmap_erms); case CPUID_STDEXT_SMAP | CPUID_STDEXT_ERMS: return (copyin_smap_erms); default: return (copyin_nosmap_std); } } int copyout_nosmap_std(const void *kaddr, void *udaddr, size_t len); int copyout_smap_std(const void *kaddr, void *udaddr, size_t len); int copyout_nosmap_erms(const void *kaddr, void *udaddr, size_t len); int copyout_smap_erms(const void *kaddr, void *udaddr, size_t len); DEFINE_IFUNC(, int, copyout, (const void *, void *, size_t)) { switch (cpu_stdext_feature & (CPUID_STDEXT_SMAP | CPUID_STDEXT_ERMS)) { case CPUID_STDEXT_SMAP: return (copyout_smap_std); case CPUID_STDEXT_ERMS: return (copyout_nosmap_erms); case CPUID_STDEXT_SMAP | CPUID_STDEXT_ERMS: return (copyout_smap_erms); default: return (copyout_nosmap_std); } }
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