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-rw-r--r--sys/include/arch/amd64/asm.h113
-rw-r--r--sys/include/arch/amd64/cpu.h43
-rw-r--r--sys/include/arch/amd64/cpuid.h40
-rw-r--r--sys/include/arch/amd64/frame.h61
-rw-r--r--sys/include/arch/amd64/frameasm.h103
-rw-r--r--sys/include/arch/amd64/gdt.h47
-rw-r--r--sys/include/arch/amd64/idt.h68
-rw-r--r--sys/include/arch/amd64/msr.h63
-rw-r--r--sys/include/arch/amd64/pio.h43
-rw-r--r--sys/include/arch/amd64/trap.h68
-rw-r--r--sys/include/dev/cons/cons.h54
-rw-r--r--sys/include/dev/cons/font.h40
-rw-r--r--sys/include/dev/video/fbdev.h55
-rw-r--r--sys/include/lib/stdarg.h44
-rw-r--r--sys/include/lib/string.h43
-rw-r--r--sys/include/sys/ascii.h45
-rw-r--r--sys/include/sys/cdefs.h37
-rw-r--r--sys/include/sys/limine.h498
-rw-r--r--sys/include/sys/param.h43
-rw-r--r--sys/include/sys/reboot.h43
-rw-r--r--sys/include/sys/sio.h51
-rw-r--r--sys/include/sys/spinlock.h46
-rw-r--r--sys/include/sys/syslog.h43
-rw-r--r--sys/include/sys/types.h61
24 files changed, 1752 insertions, 0 deletions
diff --git a/sys/include/arch/amd64/asm.h b/sys/include/arch/amd64/asm.h
new file mode 100644
index 0000000..d7334fe
--- /dev/null
+++ b/sys/include/arch/amd64/asm.h
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _MACHINE_ASM_H_
+#define _MACHINE_ASM_H_
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <machine/msr.h>
+
+/*
+ * Contains information for the current
+ * core. Stored in %GS.
+ *
+ * MUST REMAIN IN ORDER!!!
+ */
+struct cpu_ctx {
+ struct cpu_info *ci;
+};
+
+/*
+ * Returns true for this core if maskable
+ * interrupts are masked (CLI) and false if
+ * they aren't (STI).
+ */
+static inline bool
+amd64_is_intr_mask(void)
+{
+ uint64_t flags;
+
+ __ASMV("pushfq; pop %0" : "=rm" (flags) :: "memory");
+ return !ISSET(flags, BIT(9));
+}
+
+static inline void
+amd64_write_gs_base(uintptr_t val)
+{
+ wrmsr(IA32_KERNEL_GS_BASE, val);
+}
+
+static inline uintptr_t
+amd64_read_gs_base(void)
+{
+ return rdmsr(IA32_KERNEL_GS_BASE);
+}
+
+static inline uint64_t
+amd64_read_cr0(void)
+{
+ uint64_t cr0;
+ __ASMV("mov %%cr0, %0" : "=r" (cr0) :: "memory");
+ return cr0;
+}
+
+static inline void
+amd64_write_cr0(uint64_t val)
+{
+ __ASMV("mov %0, %%cr0" :: "r" (val) : "memory");
+}
+
+static inline uint64_t
+amd64_read_cr4(void)
+{
+ uint64_t cr4;
+ __ASMV("mov %%cr4, %0" : "=r" (cr4) :: "memory");
+ return cr4;
+}
+
+static inline void
+amd64_write_cr4(uint64_t val)
+{
+ __ASMV("mov %0, %%cr4" :: "r" (val) : "memory");
+}
+
+static inline void
+amd64_fxsave(void *area)
+{
+ __ASMV("fxsave (%0)" :: "r" (area) : "memory");
+}
+
+static inline void
+amd64_fxrstor(void *area)
+{
+ __ASMV("fxrstor (%0)" :: "r" (area) : "memory");
+}
+
+#endif
diff --git a/sys/include/arch/amd64/cpu.h b/sys/include/arch/amd64/cpu.h
new file mode 100644
index 0000000..efa60ad
--- /dev/null
+++ b/sys/include/arch/amd64/cpu.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _MACHINE_CPU_H_
+#define _MACHINE_CPU_H_
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+
+struct cpu_info {
+ uint32_t apicid;
+};
+
+void cpu_startup(void);
+
+
+#endif /* !_MACHINE_CPU_H_ */
diff --git a/sys/include/arch/amd64/cpuid.h b/sys/include/arch/amd64/cpuid.h
new file mode 100644
index 0000000..d1a752b
--- /dev/null
+++ b/sys/include/arch/amd64/cpuid.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _MACHINE_CPUID_H_
+#define _MACHINE_CPUID_H_
+
+#include <sys/cdefs.h>
+
+#define CPUID(level, a, b, c, d) \
+ __ASMV("cpuid\n\t" \
+ : "=a" (a), "=b" (b), "=c" (c), "=d" (d) \
+ : "0" (level))
+
+#endif /* !_MACHINE_CPUID_H_ */
diff --git a/sys/include/arch/amd64/frame.h b/sys/include/arch/amd64/frame.h
new file mode 100644
index 0000000..a132e4c
--- /dev/null
+++ b/sys/include/arch/amd64/frame.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _MACHINE_FRAME_H_
+#define _MACHINE_FRAME_H_
+
+#include <sys/types.h>
+
+struct trapframe {
+ uint64_t trapno;
+ uint64_t rax;
+ uint64_t rcx;
+ uint64_t rdx;
+ uint64_t rbx;
+ uint64_t rsi;
+ uint64_t rdi;
+ uint64_t rbp;
+ uint64_t r8;
+ uint64_t r9;
+ uint64_t r10;
+ uint64_t r11;
+ uint64_t r12;
+ uint64_t r13;
+ uint64_t r14;
+ uint64_t r15;
+ /* Pushed by hardware */
+ uint64_t error_code;
+ uint64_t rip;
+ uint64_t cs;
+ uint64_t rflags;
+ uint64_t rsp;
+ uint64_t ss;
+};
+
+#endif /* !_MACHINE_FRAME_H_ */
diff --git a/sys/include/arch/amd64/frameasm.h b/sys/include/arch/amd64/frameasm.h
new file mode 100644
index 0000000..b6d4f39
--- /dev/null
+++ b/sys/include/arch/amd64/frameasm.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _MACHINE_FRAMEASM_H_
+#define _MACHINE_FRAMEASM_H_
+
+/*
+ * If the interrupt has an error code, this macro shall
+ * be used to create the trapframe.
+ *
+ * XXX: A trapframe created with this must be popped with
+ * pop_trapframe_ec
+ */
+.macro push_trapframe_ec trapno
+ push %r15
+ push %r14
+ push %r13
+ push %r12
+ push %r11
+ push %r10
+ push %r9
+ push %r8
+ push %rbp
+ push %rdi
+ push %rsi
+ push %rbx
+ push %rdx
+ push %rcx
+ push %rax
+ push \trapno
+.endm
+
+/*
+ * If the interrupt has an error code, this macro shall
+ * be used to cleanup the trapframe.
+ */
+.macro pop_trapframe_ec
+ add $8, %rsp /* Trapno */
+ pop %rax
+ pop %rcx
+ pop %rdx
+ pop %rbx
+ pop %rsi
+ pop %rdi
+ pop %rbp
+ pop %r8
+ pop %r9
+ pop %r10
+ pop %r11
+ pop %r12
+ pop %r13
+ pop %r14
+ pop %r15
+.endm
+
+/*
+ * If the interrupt has no error code, this macro
+ * shall be used to create the trapframe.
+ *
+ * XXX: A trapframe created with this must be popped
+ * with pop_trapframe
+ */
+.macro push_trapframe trapno
+ push $0
+ push_trapframe_ec \trapno
+.endm
+
+
+/*
+ * If the interrupt has no error code, this macro shall
+ * be used to cleanup the trapframe.
+ */
+.macro pop_trapframe
+ pop_trapframe_ec
+ add $8, %rsp /* Pop error code */
+.endm
+#endif /* !_MACHINE_FRAMEASM_H_ */
diff --git a/sys/include/arch/amd64/gdt.h b/sys/include/arch/amd64/gdt.h
new file mode 100644
index 0000000..6f8a914
--- /dev/null
+++ b/sys/include/arch/amd64/gdt.h
@@ -0,0 +1,47 @@
+#ifndef _AMD64_GDT_H_
+#define _AMD64_GDT_H_
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+
+#define KERNEL_CS 0x08
+#define KERNEL_DS 0x10
+
+struct __packed gdt_entry {
+ uint16_t limit;
+ uint16_t base_low;
+ uint8_t base_mid;
+ uint8_t access;
+ uint8_t granularity;
+ uint8_t base_hi;
+};
+
+struct __packed gdtr {
+ uint16_t limit;
+ uintptr_t offset;
+};
+
+__always_inline static inline void
+gdt_load(struct gdtr *gdtr)
+{
+ __ASMV("lgdt %0\n"
+ "push $8\n" /* Push CS */
+ "lea 1f(%%rip), %%rax\n" /* Load 1 label address into RAX */
+ "push %%rax\n" /* Push the return address (label 1) */
+ "lretq\n" /* Far return to update CS */
+ "1:\n"
+ " mov $0x10, %%eax\n"
+ " mov %%eax, %%ds\n"
+ " mov %%eax, %%es\n"
+ " mov %%eax, %%fs\n"
+ " mov %%eax, %%gs\n"
+ " mov %%eax, %%ss\n"
+ :
+ : "m" (*gdtr)
+ : "rax", "memory"
+ );
+}
+
+extern struct gdt_entry g_gdt_data[256];
+
+#endif /* !AMD64_GDT_H_ */
diff --git a/sys/include/arch/amd64/idt.h b/sys/include/arch/amd64/idt.h
new file mode 100644
index 0000000..7f439f3
--- /dev/null
+++ b/sys/include/arch/amd64/idt.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _MACHINE_IDT_H_
+#define _MACHINE_IDT_H_
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+
+#define IDT_TRAP_GATE 0x8F
+#define IDT_INT_GATE 0x8E
+#define IDT_USER_INT_GATE 0xEE
+
+#define ISR(p) ((uintptr_t)p)
+
+/*
+ * AMD64 Interrupt Gate Descriptor.
+ */
+struct idt_entry {
+ uint16_t off_lo; /* Low 16 bits of ISR offset */
+ uint16_t segsel; /* Segment selector, hardcode to kernel CS */
+ uint8_t ist : 2; /* Interrupt stack table */
+ uint8_t zero : 1; /* Unused: keep zero */
+ uint8_t zero1 : 4; /* Unused: keep zero */
+ uint8_t type : 4; /* Gate type */
+ uint8_t zero2 : 1; /* Unused: keep zero */
+ uint8_t dpl : 2; /* Descriptor privilege level */
+ uint8_t p : 1; /* Present (keep 1 to mark as valid) */
+ uint16_t off_mid; /* Middle 16 bits of ISR offset */
+ uint32_t off_hi; /* High 32-bits of ISR offset */
+ uint32_t reserved; /* Reserved: keep zero */
+};
+
+struct __packed idtr {
+ uint16_t limit;
+ uintptr_t offset;
+};
+
+void idt_set_desc(uint8_t vector, uint8_t type, uintptr_t isr, uint8_t ist);
+void idt_load(void);
+
+#endif /* !_MACHINE_IDT_H_ */
diff --git a/sys/include/arch/amd64/msr.h b/sys/include/arch/amd64/msr.h
new file mode 100644
index 0000000..bc0dbcb
--- /dev/null
+++ b/sys/include/arch/amd64/msr.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _MACHINE_MSR_H_
+#define _MACHINE_MSR_H_
+
+#define IA32_SPEC_CTL 0x00000048
+#define IA32_KERNEL_GS_BASE 0xC0000102
+
+static inline uint64_t
+rdmsr(uint32_t msr_addr)
+{
+ uint32_t lo, hi;
+
+ __ASMV("rdmsr"
+ : "=a" (lo), "=d" (hi)
+ : "c" (msr_addr)
+ );
+ return ((uint64_t)hi << 32) | lo;
+}
+
+static inline void
+wrmsr(uint32_t msr_addr, uint64_t value)
+{
+ uint32_t lo, hi;
+
+ lo = (uint32_t)value;
+ hi = (uint32_t)(value >> 32);
+
+ __ASMV("wrmsr"
+ : /* No outputs */
+ : "a" (lo), "d" (hi),
+ "c" (msr_addr)
+ );
+}
+
+#endif /* !_MACHINE_MSR_H_ */
diff --git a/sys/include/arch/amd64/pio.h b/sys/include/arch/amd64/pio.h
new file mode 100644
index 0000000..193e986
--- /dev/null
+++ b/sys/include/arch/amd64/pio.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _MACHINE_PIO_H_
+#define _MACHINE_PIO_H_
+
+#include <sys/types.h>
+
+uint8_t inb(uint16_t port);
+uint16_t inw(uint16_t port);
+uint32_t inl(uint16_t port);
+
+void outb(uint16_t port, uint8_t val);
+void outw(uint16_t port, uint16_t val);
+void outl(uint16_t port, uint32_t val);
+
+#endif /* !_MACHINE_PIO_H_ */
diff --git a/sys/include/arch/amd64/trap.h b/sys/include/arch/amd64/trap.h
new file mode 100644
index 0000000..deeb738
--- /dev/null
+++ b/sys/include/arch/amd64/trap.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _MACHINE_TRAP_H_
+#define _MACHINE_TRAP_H_
+
+#if !defined(__ASSEMBLER__)
+#include <machine/frame.h>
+#endif
+
+#define TRAP_NONE 0 /* Used for general interrupts */
+#define TRAP_BREAKPOINT 1 /* Breakpoint */
+#define TRAP_ARITH_ERR 2 /* Arithmetic error (e.g division by 0) */
+#define TRAP_OVERFLOW 3 /* Overflow */
+#define TRAP_BOUND_RANGE 4 /* BOUND range exceeded */
+#define TRAP_INVLOP 5 /* Invalid opcode */
+#define TRAP_DOUBLE_FAULT 6 /* Double fault */
+#define TRAP_INVLTSS 7 /* Invalid TSS */
+#define TRAP_SEGNP 8 /* Segment not present */
+#define TRAP_PROTFLT 9 /* General protection */
+#define TRAP_PAGEFLT 10 /* Page fault */
+#define TRAP_NMI 11 /* Non-maskable interrupt */
+#define TRAP_SS 12 /* Stack-segment fault */
+
+#if !defined(__ASSEMBLER__)
+
+void breakpoint_handler(void *sf);
+void arith_err(void *sf);
+void overflow(void *sf);
+void bound_range(void *sf);
+void invl_op(void *sf);
+void double_fault(void *sf);
+void invl_tss(void *sf);
+void segnp(void *sf);
+void general_prot(void *sf);
+void page_fault(void *sf);
+void nmi(void *sf);
+void ss_fault(void *sf);
+void trap_handler(struct trapframe *tf);
+
+#endif /* !__ASSEMBLER__ */
+#endif /* !_MACHINE_TRAP_H_ */
diff --git a/sys/include/dev/cons/cons.h b/sys/include/dev/cons/cons.h
new file mode 100644
index 0000000..15a7f59
--- /dev/null
+++ b/sys/include/dev/cons/cons.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _DEV_CONS_H_
+#define _DEV_CONS_H_
+
+#include <sys/types.h>
+#include <dev/video/fbdev.h>
+
+struct cons_screen {
+ struct fbdev fbdev;
+ uint32_t fg;
+ uint32_t bg;
+
+ /* Private */
+ uint32_t *fb_mem;
+ uint32_t nrows;
+ uint32_t ncols;
+ uint32_t ch_col; /* Current col */
+ uint32_t ch_row; /* Current row */
+};
+
+void cons_init(void);
+int cons_putch(struct cons_screen *scr, char c);
+
+extern struct cons_screen g_root_scr;
+
+#endif /* !_DEV_CONS_H_ */
diff --git a/sys/include/dev/cons/font.h b/sys/include/dev/cons/font.h
new file mode 100644
index 0000000..b9130fd
--- /dev/null
+++ b/sys/include/dev/cons/font.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _CONS_FONT_H_
+#define _CONS_FONT_H_
+
+#include <sys/types.h>
+
+#define FONT_WIDTH 8
+#define FONT_HEIGHT 16
+
+extern const uint8_t CONS_FONT[];
+
+#endif /* !_CONS_FONT_H_ */
diff --git a/sys/include/dev/video/fbdev.h b/sys/include/dev/video/fbdev.h
new file mode 100644
index 0000000..33f8547
--- /dev/null
+++ b/sys/include/dev/video/fbdev.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _DEV_FBDEV_H_
+#define _DEV_FBDEV_H_
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+
+struct fbdev {
+ uint32_t *mem;
+ uint32_t width;
+ uint32_t height;
+ uint32_t pitch;
+};
+
+/*
+ * Get the index into the framebuffer with an x and y
+ * position.
+ */
+__always_inline static inline size_t
+fbdev_get_index(const struct fbdev *fbdev, uint32_t x, uint32_t y)
+{
+ return x + y * (fbdev->pitch / 4);
+}
+
+struct fbdev fbdev_get(void);
+
+#endif /* !_DEV_FBDEV_H_ */
diff --git a/sys/include/lib/stdarg.h b/sys/include/lib/stdarg.h
new file mode 100644
index 0000000..5a3d67d
--- /dev/null
+++ b/sys/include/lib/stdarg.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _LIB_STDARG_H_
+#define _LIB_STDARG_H_
+
+#ifndef __GNUC_VA_LIST
+#define __GNUC_VA_LIST
+typedef __builtin_va_list __gnuc_va_list;
+#endif /* __GNUC_VA_LIST */
+
+typedef __gnuc_va_list va_list;
+
+#define va_start(ap, last) __builtin_va_start((ap), last)
+#define va_end(ap) __builtin_va_end((ap))
+#define va_arg(ap, type) __builtin_va_arg((ap), type)
+
+#endif /* !_LIB_STDARG_H_ */
diff --git a/sys/include/lib/string.h b/sys/include/lib/string.h
new file mode 100644
index 0000000..b96902b
--- /dev/null
+++ b/sys/include/lib/string.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _LIB_STRING_H_
+#define _LIB_STRING_H_
+
+#include <sys/types.h>
+#include <stdarg.h>
+
+size_t strlen(const char *s);
+char *itoa(int64_t value, char *buf, int base);
+
+int vsnprintf(char *s, size_t size, const char *fmt, va_list ap);
+int snprintf(char *s, size_t size, const char *fmt, ...);
+void *memcpy(void *dest, const void *src, size_t n);
+
+#endif /* !_LIB_STRING_H_ */
diff --git a/sys/include/sys/ascii.h b/sys/include/sys/ascii.h
new file mode 100644
index 0000000..248c903
--- /dev/null
+++ b/sys/include/sys/ascii.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _SYS_ASCII_H_
+#define _SYS_ASCII_H_
+
+#define ASCII_NUL 0x00 /* Nul */
+#define ASCII_BEL 0x07 /* Bell */
+#define ASCII_BS 0x08 /* Backspace */
+#define ASCII_HT 0x09 /* Horizontal tab */
+#define ASCII_LF 0x0A /* Line feed */
+#define ASCII_VT 0x0B /* Vertical tab */
+#define ASCII_FF 0x0C /* Form feed */
+#define ASCII_CR 0x0D /* Carriage return */
+#define ASCII_SO 0x0E /* Shift out */
+#define ASCII_SI 0x0F /* Shift in */
+#define ASCII_ESC 0x1B /* Escape */
+
+#endif /* !_SYS_ASCII_H_ */
diff --git a/sys/include/sys/cdefs.h b/sys/include/sys/cdefs.h
new file mode 100644
index 0000000..9c1a466
--- /dev/null
+++ b/sys/include/sys/cdefs.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _SYS_CDEFS_H_
+#define _SYS_CDEFS_H_
+
+#define __ASMV __asm__ __volatile__
+#define __always_inline __attribute__((__always_inline__))
+#define __packed __attribute__((__packed__))
+
+#endif /* !_SYS_CDEFS_H_ */
diff --git a/sys/include/sys/limine.h b/sys/include/sys/limine.h
new file mode 100644
index 0000000..57ccc4a
--- /dev/null
+++ b/sys/include/sys/limine.h
@@ -0,0 +1,498 @@
+/* BSD Zero Clause License */
+
+/* Copyright (C) 2022-2023 mintsuki and contributors.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _LIMINE_H
+#define _LIMINE_H 1
+
+#if defined(_KERNEL)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+/* Misc */
+
+#ifdef LIMINE_NO_POINTERS
+# define LIMINE_PTR(TYPE) uint64_t
+#else
+# define LIMINE_PTR(TYPE) TYPE
+#endif
+
+#ifdef __GNUC__
+# define LIMINE_DEPRECATED __attribute__((__deprecated__))
+# define LIMINE_DEPRECATED_IGNORE_START \
+ _Pragma("GCC diagnostic push") \
+ _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
+# define LIMINE_DEPRECATED_IGNORE_END \
+ _Pragma("GCC diagnostic pop")
+#else
+# define LIMINE_DEPRECATED
+# define LIMINE_DEPRECATED_IGNORE_START
+# define LIMINE_DEPRECATED_IGNORE_END
+#endif
+
+#define LIMINE_COMMON_MAGIC 0xc7b1dd30df4c8b88, 0x0a82e883a194f07b
+
+struct limine_uuid {
+ uint32_t a;
+ uint16_t b;
+ uint16_t c;
+ uint8_t d[8];
+};
+
+#define LIMINE_MEDIA_TYPE_GENERIC 0
+#define LIMINE_MEDIA_TYPE_OPTICAL 1
+#define LIMINE_MEDIA_TYPE_TFTP 2
+
+struct limine_file {
+ uint64_t revision;
+ LIMINE_PTR(void *) address;
+ uint64_t size;
+ LIMINE_PTR(char *) path;
+ LIMINE_PTR(char *) cmdline;
+ uint32_t media_type;
+ uint32_t unused;
+ uint32_t tftp_ip;
+ uint32_t tftp_port;
+ uint32_t partition_index;
+ uint32_t mbr_disk_id;
+ struct limine_uuid gpt_disk_uuid;
+ struct limine_uuid gpt_part_uuid;
+ struct limine_uuid part_uuid;
+};
+
+/* Boot info */
+
+#define LIMINE_BOOTLOADER_INFO_REQUEST { LIMINE_COMMON_MAGIC, 0xf55038d8e2a1202f, 0x279426fcf5f59740 }
+
+struct limine_bootloader_info_response {
+ uint64_t revision;
+ LIMINE_PTR(char *) name;
+ LIMINE_PTR(char *) version;
+};
+
+struct limine_bootloader_info_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_bootloader_info_response *) response;
+};
+
+/* Stack size */
+
+#define LIMINE_STACK_SIZE_REQUEST { LIMINE_COMMON_MAGIC, 0x224ef0460a8e8926, 0xe1cb0fc25f46ea3d }
+
+struct limine_stack_size_response {
+ uint64_t revision;
+};
+
+struct limine_stack_size_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_stack_size_response *) response;
+ uint64_t stack_size;
+};
+
+/* HHDM */
+
+#define LIMINE_HHDM_REQUEST { LIMINE_COMMON_MAGIC, 0x48dcf1cb8ad2b852, 0x63984e959a98244b }
+
+struct limine_hhdm_response {
+ uint64_t revision;
+ uint64_t offset;
+};
+
+struct limine_hhdm_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_hhdm_response *) response;
+};
+
+/* Framebuffer */
+
+#define LIMINE_FRAMEBUFFER_REQUEST { LIMINE_COMMON_MAGIC, 0x9d5827dcd881dd75, 0xa3148604f6fab11b }
+
+#define LIMINE_FRAMEBUFFER_RGB 1
+
+struct limine_video_mode {
+ uint64_t pitch;
+ uint64_t width;
+ uint64_t height;
+ uint16_t bpp;
+ uint8_t memory_model;
+ uint8_t red_mask_size;
+ uint8_t red_mask_shift;
+ uint8_t green_mask_size;
+ uint8_t green_mask_shift;
+ uint8_t blue_mask_size;
+ uint8_t blue_mask_shift;
+};
+
+struct limine_framebuffer {
+ LIMINE_PTR(void *) address;
+ uint64_t width;
+ uint64_t height;
+ uint64_t pitch;
+ uint16_t bpp;
+ uint8_t memory_model;
+ uint8_t red_mask_size;
+ uint8_t red_mask_shift;
+ uint8_t green_mask_size;
+ uint8_t green_mask_shift;
+ uint8_t blue_mask_size;
+ uint8_t blue_mask_shift;
+ uint8_t unused[7];
+ uint64_t edid_size;
+ LIMINE_PTR(void *) edid;
+ /* Response revision 1 */
+ uint64_t mode_count;
+ LIMINE_PTR(struct limine_video_mode **) modes;
+};
+
+struct limine_framebuffer_response {
+ uint64_t revision;
+ uint64_t framebuffer_count;
+ LIMINE_PTR(struct limine_framebuffer **) framebuffers;
+};
+
+struct limine_framebuffer_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_framebuffer_response *) response;
+};
+
+/* Terminal */
+
+#define LIMINE_TERMINAL_REQUEST { LIMINE_COMMON_MAGIC, 0xc8ac59310c2b0844, 0xa68d0c7265d38878 }
+
+#define LIMINE_TERMINAL_CB_DEC 10
+#define LIMINE_TERMINAL_CB_BELL 20
+#define LIMINE_TERMINAL_CB_PRIVATE_ID 30
+#define LIMINE_TERMINAL_CB_STATUS_REPORT 40
+#define LIMINE_TERMINAL_CB_POS_REPORT 50
+#define LIMINE_TERMINAL_CB_KBD_LEDS 60
+#define LIMINE_TERMINAL_CB_MODE 70
+#define LIMINE_TERMINAL_CB_LINUX 80
+
+#define LIMINE_TERMINAL_CTX_SIZE ((uint64_t)(-1))
+#define LIMINE_TERMINAL_CTX_SAVE ((uint64_t)(-2))
+#define LIMINE_TERMINAL_CTX_RESTORE ((uint64_t)(-3))
+#define LIMINE_TERMINAL_FULL_REFRESH ((uint64_t)(-4))
+
+/* Response revision 1 */
+#define LIMINE_TERMINAL_OOB_OUTPUT_GET ((uint64_t)(-10))
+#define LIMINE_TERMINAL_OOB_OUTPUT_SET ((uint64_t)(-11))
+
+#define LIMINE_TERMINAL_OOB_OUTPUT_OCRNL (1 << 0)
+#define LIMINE_TERMINAL_OOB_OUTPUT_OFDEL (1 << 1)
+#define LIMINE_TERMINAL_OOB_OUTPUT_OFILL (1 << 2)
+#define LIMINE_TERMINAL_OOB_OUTPUT_OLCUC (1 << 3)
+#define LIMINE_TERMINAL_OOB_OUTPUT_ONLCR (1 << 4)
+#define LIMINE_TERMINAL_OOB_OUTPUT_ONLRET (1 << 5)
+#define LIMINE_TERMINAL_OOB_OUTPUT_ONOCR (1 << 6)
+#define LIMINE_TERMINAL_OOB_OUTPUT_OPOST (1 << 7)
+
+LIMINE_DEPRECATED_IGNORE_START
+
+struct LIMINE_DEPRECATED limine_terminal;
+
+typedef void (*limine_terminal_write)(struct limine_terminal *, const char *, uint64_t);
+typedef void (*limine_terminal_callback)(struct limine_terminal *, uint64_t, uint64_t, uint64_t, uint64_t);
+
+struct LIMINE_DEPRECATED limine_terminal {
+ uint64_t columns;
+ uint64_t rows;
+ LIMINE_PTR(struct limine_framebuffer *) framebuffer;
+};
+
+struct LIMINE_DEPRECATED limine_terminal_response {
+ uint64_t revision;
+ uint64_t terminal_count;
+ LIMINE_PTR(struct limine_terminal **) terminals;
+ LIMINE_PTR(limine_terminal_write) write;
+};
+
+struct LIMINE_DEPRECATED limine_terminal_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_terminal_response *) response;
+ LIMINE_PTR(limine_terminal_callback) callback;
+};
+
+LIMINE_DEPRECATED_IGNORE_END
+
+/* 5-level paging */
+
+#define LIMINE_5_LEVEL_PAGING_REQUEST { LIMINE_COMMON_MAGIC, 0x94469551da9b3192, 0xebe5e86db7382888 }
+
+struct limine_5_level_paging_response {
+ uint64_t revision;
+};
+
+struct limine_5_level_paging_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_5_level_paging_response *) response;
+};
+
+/* SMP */
+
+#define LIMINE_SMP_REQUEST { LIMINE_COMMON_MAGIC, 0x95a67b819a1b857e, 0xa0b61b723b6a73e0 }
+
+struct limine_smp_info;
+
+typedef void (*limine_goto_address)(struct limine_smp_info *);
+
+#if defined (__x86_64__) || defined (__i386__)
+
+#define LIMINE_SMP_X2APIC (1 << 0)
+
+struct limine_smp_info {
+ uint32_t processor_id;
+ uint32_t lapic_id;
+ uint64_t reserved;
+ LIMINE_PTR(limine_goto_address) goto_address;
+ uint64_t extra_argument;
+};
+
+struct limine_smp_response {
+ uint64_t revision;
+ uint32_t flags;
+ uint32_t bsp_lapic_id;
+ uint64_t cpu_count;
+ LIMINE_PTR(struct limine_smp_info **) cpus;
+};
+
+#elif defined (__aarch64__)
+
+struct limine_smp_info {
+ uint32_t processor_id;
+ uint32_t gic_iface_no;
+ uint64_t mpidr;
+ uint64_t reserved;
+ LIMINE_PTR(limine_goto_address) goto_address;
+ uint64_t extra_argument;
+};
+
+struct limine_smp_response {
+ uint64_t revision;
+ uint32_t flags;
+ uint64_t bsp_mpidr;
+ uint64_t cpu_count;
+ LIMINE_PTR(struct limine_smp_info **) cpus;
+};
+
+#else
+#error Unknown architecture
+#endif
+
+struct limine_smp_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_smp_response *) response;
+ uint64_t flags;
+};
+
+/* Memory map */
+
+#define LIMINE_MEMMAP_REQUEST { LIMINE_COMMON_MAGIC, 0x67cf3d9d378a806f, 0xe304acdfc50c3c62 }
+
+#define LIMINE_MEMMAP_USABLE 0
+#define LIMINE_MEMMAP_RESERVED 1
+#define LIMINE_MEMMAP_ACPI_RECLAIMABLE 2
+#define LIMINE_MEMMAP_ACPI_NVS 3
+#define LIMINE_MEMMAP_BAD_MEMORY 4
+#define LIMINE_MEMMAP_BOOTLOADER_RECLAIMABLE 5
+#define LIMINE_MEMMAP_KERNEL_AND_MODULES 6
+#define LIMINE_MEMMAP_FRAMEBUFFER 7
+
+struct limine_memmap_entry {
+ uint64_t base;
+ uint64_t length;
+ uint64_t type;
+};
+
+struct limine_memmap_response {
+ uint64_t revision;
+ uint64_t entry_count;
+ LIMINE_PTR(struct limine_memmap_entry **) entries;
+};
+
+struct limine_memmap_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_memmap_response *) response;
+};
+
+/* Entry point */
+
+#define LIMINE_ENTRY_POINT_REQUEST { LIMINE_COMMON_MAGIC, 0x13d86c035a1cd3e1, 0x2b0caa89d8f3026a }
+
+typedef void (*limine_entry_point)(void);
+
+struct limine_entry_point_response {
+ uint64_t revision;
+};
+
+struct limine_entry_point_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_entry_point_response *) response;
+ LIMINE_PTR(limine_entry_point) entry;
+};
+
+/* Kernel File */
+
+#define LIMINE_KERNEL_FILE_REQUEST { LIMINE_COMMON_MAGIC, 0xad97e90e83f1ed67, 0x31eb5d1c5ff23b69 }
+
+struct limine_kernel_file_response {
+ uint64_t revision;
+ LIMINE_PTR(struct limine_file *) kernel_file;
+};
+
+struct limine_kernel_file_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_kernel_file_response *) response;
+};
+
+/* Module */
+
+#define LIMINE_MODULE_REQUEST { LIMINE_COMMON_MAGIC, 0x3e7e279702be32af, 0xca1c4f3bd1280cee }
+
+#define LIMINE_INTERNAL_MODULE_REQUIRED (1 << 0)
+
+struct limine_internal_module {
+ LIMINE_PTR(const char *) path;
+ LIMINE_PTR(const char *) cmdline;
+ uint64_t flags;
+};
+
+struct limine_module_response {
+ uint64_t revision;
+ uint64_t module_count;
+ LIMINE_PTR(struct limine_file **) modules;
+};
+
+struct limine_module_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_module_response *) response;
+
+ /* Request revision 1 */
+ uint64_t internal_module_count;
+ LIMINE_PTR(struct limine_internal_module **) internal_modules;
+};
+
+/* RSDP */
+
+#define LIMINE_RSDP_REQUEST { LIMINE_COMMON_MAGIC, 0xc5e77b6b397e7b43, 0x27637845accdcf3c }
+
+struct limine_rsdp_response {
+ uint64_t revision;
+ LIMINE_PTR(void *) address;
+};
+
+struct limine_rsdp_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_rsdp_response *) response;
+};
+
+/* SMBIOS */
+
+#define LIMINE_SMBIOS_REQUEST { LIMINE_COMMON_MAGIC, 0x9e9046f11e095391, 0xaa4a520fefbde5ee }
+
+struct limine_smbios_response {
+ uint64_t revision;
+ LIMINE_PTR(void *) entry_32;
+ LIMINE_PTR(void *) entry_64;
+};
+
+struct limine_smbios_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_smbios_response *) response;
+};
+
+/* EFI system table */
+
+#define LIMINE_EFI_SYSTEM_TABLE_REQUEST { LIMINE_COMMON_MAGIC, 0x5ceba5163eaaf6d6, 0x0a6981610cf65fcc }
+
+struct limine_efi_system_table_response {
+ uint64_t revision;
+ LIMINE_PTR(void *) address;
+};
+
+struct limine_efi_system_table_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_efi_system_table_response *) response;
+};
+
+/* Boot time */
+
+#define LIMINE_BOOT_TIME_REQUEST { LIMINE_COMMON_MAGIC, 0x502746e184c088aa, 0xfbc5ec83e6327893 }
+
+struct limine_boot_time_response {
+ uint64_t revision;
+ int64_t boot_time;
+};
+
+struct limine_boot_time_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_boot_time_response *) response;
+};
+
+/* Kernel address */
+
+#define LIMINE_KERNEL_ADDRESS_REQUEST { LIMINE_COMMON_MAGIC, 0x71ba76863cc55f63, 0xb2644a48c516a487 }
+
+struct limine_kernel_address_response {
+ uint64_t revision;
+ uint64_t physical_base;
+ uint64_t virtual_base;
+};
+
+struct limine_kernel_address_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_kernel_address_response *) response;
+};
+
+/* Device Tree Blob */
+
+#define LIMINE_DTB_REQUEST { LIMINE_COMMON_MAGIC, 0xb40ddb48fb54bac7, 0x545081493f81ffb7 }
+
+struct limine_dtb_response {
+ uint64_t revision;
+ LIMINE_PTR(void *) dtb_ptr;
+};
+
+struct limine_dtb_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_dtb_response *) response;
+};
+
+#ifdef __cplusplus
+}
+#endif /* _KERNEL */
+#endif
+
+#endif
diff --git a/sys/include/sys/param.h b/sys/include/sys/param.h
new file mode 100644
index 0000000..7631057
--- /dev/null
+++ b/sys/include/sys/param.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _SYS_PARAM_H_
+#define _SYS_PARAM_H_
+
+/* Bit related macros */
+#define ISSET(v, f) ((v) & (f))
+#define BIT(n) (1 << (n))
+
+/* Min/max macros */
+#define MIN(a,b) (((a) < (b)) ? (a) : (b))
+#define MAX(a,b) (((a) > (b)) ? (a) : (b))
+
+#define NELEM(a) (sizeof(a) / sizeof(a[0]))
+
+#endif /* _SYS_PARAM_H_ */
diff --git a/sys/include/sys/reboot.h b/sys/include/sys/reboot.h
new file mode 100644
index 0000000..21b7e7a
--- /dev/null
+++ b/sys/include/sys/reboot.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _SYS_REBOOT_H_
+#define _SYS_REBOOT_H_
+
+#include <sys/param.h>
+#include <sys/cdefs.h>
+
+#define REBOOT_HALT BIT(0) /* Halt instead of rebooting */
+
+#if defined(_KERNEL)
+
+void cpu_reboot(int method);
+
+#endif /* _KERNEL */
+#endif /* _SYS_REBOOT_H_ */
diff --git a/sys/include/sys/sio.h b/sys/include/sys/sio.h
new file mode 100644
index 0000000..b4da6a8
--- /dev/null
+++ b/sys/include/sys/sio.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _SYS_SIO_H_
+#define _SYS_SIO_H_
+
+#include <sys/types.h>
+
+#if defined(_KERNEL)
+
+/*
+ * System I/O transaction
+ *
+ * This structure describes a system I/O transaction
+ * and contains common fields that are used
+ * with system I/O.
+ */
+struct sio_txn {
+ void *buf; /* Source/dest buffer */
+ off_t offset; /* Transfer offset */
+ size_t len; /* Length in bytes */
+};
+
+#endif /* _KERNEL */
+#endif /* _SYS_SIO_H_ */
diff --git a/sys/include/sys/spinlock.h b/sys/include/sys/spinlock.h
new file mode 100644
index 0000000..42f6848
--- /dev/null
+++ b/sys/include/sys/spinlock.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _SYS_SPINLOCK_H_
+#define _SYS_SPINLOCK_H_
+
+#include <sys/types.h>
+
+struct spinlock {
+ volatile bool lock;
+};
+
+#if defined(_KERNEL)
+
+void spinlock_acquire(struct spinlock *lock);
+void spinlock_release(struct spinlock *lock);
+
+#endif
+
+#endif /* !_SYS_SPINLOCK_H_ */
diff --git a/sys/include/sys/syslog.h b/sys/include/sys/syslog.h
new file mode 100644
index 0000000..9a044b9
--- /dev/null
+++ b/sys/include/sys/syslog.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _SYS_SYSLOG_H_
+#define _SYS_SYSLOG_H_
+
+#include <stdarg.h>
+
+#if defined(_KERNEL)
+
+#define OMIT_TIMESTAMP "\x01"
+
+void kprintf(const char *fmt, ...);
+void vkprintf(const char *fmt, va_list *ap);
+
+#endif /* !_KERNEL */
+#endif /* !_SYS_SYSLOG_H_ */
diff --git a/sys/include/sys/types.h b/sys/include/sys/types.h
new file mode 100644
index 0000000..fad34c7
--- /dev/null
+++ b/sys/include/sys/types.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2023-2024 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.
+ */
+
+#ifndef _SYS_TYPES_H_
+#define _SYS_TYPES_H_
+
+#define true 1
+#define false 0
+#define NULL ((void *)0)
+
+typedef signed char int8_t;
+typedef unsigned char uint8_t;
+typedef short int16_t;
+typedef unsigned short uint16_t;
+typedef int int32_t;
+typedef unsigned int uint32_t;
+#if __SIZEOF_LONG__ == 8
+typedef long int64_t;
+typedef unsigned long uint64_t;
+#endif
+
+#if __SIZEOF_SIZE_T__ == 8
+typedef uint64_t size_t;
+typedef int64_t ssize_t; /* Byte count or error */
+#elif __SIZEOF_SIZE_T__ == 4
+typedef uint32_t size_t;
+typedef int32_t ssize_t; /* Byte count or error */
+#else
+#error "Unsupported size_t size"
+#endif
+
+typedef size_t uintptr_t;
+typedef _Bool bool;
+
+#endif /* _SYS_TYPES_H_ */