diff options
Diffstat (limited to 'sys/arch/amd64/machdep.c')
-rw-r--r-- | sys/arch/amd64/machdep.c | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/sys/arch/amd64/machdep.c b/sys/arch/amd64/machdep.c deleted file mode 100644 index 66778a6..0000000 --- a/sys/arch/amd64/machdep.c +++ /dev/null @@ -1,109 +0,0 @@ -/* - * Copyright (c) 2023 Ian Marco Moffett and the Osmora Team. - * All rights reserved. - * - * 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 Hyra 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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/machdep.h> -#include <sys/cdefs.h> -#include <machine/trap.h> -#include <machine/idt.h> -#include <machine/gdt.h> -#include <machine/ioapic.h> -#include <machine/lapic.h> -#include <machine/tss.h> -#include <machine/spectre.h> -#include <machine/cpu.h> - -__MODULE_NAME("machdep"); -__KERNEL_META("$Hyra$: machdep.c, Ian Marco Moffett, " - "Core machine dependent code"); - -#define ISR(func) ((uintptr_t)func) -#define INIT_FLAG_IOAPIC 0x00000001U - -static inline void -init_tss(struct cpu_info *cur_cpu) -{ - struct tss_desc *desc; - - desc = (struct tss_desc *)g_gdt_tss; - write_tss(cur_cpu, desc); - tss_load(); -} - -static void -interrupts_init(void) -{ - idt_set_desc(0x0, IDT_TRAP_GATE_FLAGS, ISR(arith_err), 0); - idt_set_desc(0x2, IDT_TRAP_GATE_FLAGS, ISR(nmi), 0); - idt_set_desc(0x3, IDT_TRAP_GATE_FLAGS, ISR(breakpoint_handler), 0); - idt_set_desc(0x4, IDT_TRAP_GATE_FLAGS, ISR(overflow), 0); - idt_set_desc(0x5, IDT_TRAP_GATE_FLAGS, ISR(bound_range), 0); - idt_set_desc(0x6, IDT_TRAP_GATE_FLAGS, ISR(invl_op), 0); - idt_set_desc(0x8, IDT_TRAP_GATE_FLAGS, ISR(double_fault), 0); - idt_set_desc(0xA, IDT_TRAP_GATE_FLAGS, ISR(invl_tss), 0); - idt_set_desc(0xB, IDT_TRAP_GATE_FLAGS, ISR(segnp), 0); - idt_set_desc(0xD, IDT_TRAP_GATE_FLAGS, ISR(general_prot), 0); - idt_set_desc(0xE, IDT_TRAP_GATE_FLAGS, ISR(page_fault), 0); - idt_load(); -} - -void -processor_halt(void) -{ - __ASMV("cli; hlt"); -} - -void -processor_init(void) -{ - /* Indicates what doesn't need to be init anymore */ - static uint8_t init_flags = 0; - - struct cpu_info *cur_cpu = NULL; - - cur_cpu = this_cpu(); - - interrupts_init(); - gdt_load(&g_gdtr); - - CPU_INFO_LOCK(cur_cpu); - init_tss(cur_cpu); - CPU_INFO_UNLOCK(cur_cpu); - - if (!__TEST(init_flags, INIT_FLAG_IOAPIC)) { - init_flags |= INIT_FLAG_IOAPIC; - ioapic_init(); - } - - lapic_init(); /* Per core */ - - /* Use spectre mitigation if enabled */ - if (try_spectre_mitigate != NULL) - try_spectre_mitigate(); - -} |