From 1f209219374d32dff8e78a0e93b51e112f79f760 Mon Sep 17 00:00:00 2001 From: sigsegv7 Date: Wed, 4 Oct 2023 14:48:55 -0400 Subject: kernel/amd64: Add system intvec abstraction Signed-off-by: sigsegv7 --- sys/include/arch/amd64/sysvec.h | 52 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 sys/include/arch/amd64/sysvec.h diff --git a/sys/include/arch/amd64/sysvec.h b/sys/include/arch/amd64/sysvec.h new file mode 100644 index 0000000..ec7a02e --- /dev/null +++ b/sys/include/arch/amd64/sysvec.h @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2023 Ian Marco Moffett and the VegaOS 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 VegaOS 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 _AMD64_SYSVEC_H_ +#define _AMD64_SYSVEC_H_ + +#include + +/* + * Interrupt vectors reserved + * to core system usage excluding + * device IRQs routed by 8259 PIC, + * I/O APIC, etc. + */ +typedef enum { + SYSVEC_LAPIC_TIMER = 0x21, /* Local APIC timer */ + SYSVEC_IPI, /* IPI vector */ + + /* -- XXX: New vectors go above -- */ + NSYSVEC_BASE, /* Non-system vector base */ +} sysvec_t; + +/* Unlikely, but just in case */ +__STATIC_ASSERT(NSYSVEC_BASE <= 0xFF, "VECTOR OVERFLOW CAUGHT"); + +#endif /* !_AMD64_SYSVEC_H_ */ -- cgit v1.2.3