From 236963e7563be3e3f8220dac7bb4af446928e194 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Mon, 24 Jun 2024 22:55:29 -0400
Subject: Clean out for expt
Signed-off-by: Ian Moffett <ian@osmora.org>
---
sys/include/arch/amd64/tss.h | 120 -------------------------------------------
1 file changed, 120 deletions(-)
delete mode 100644 sys/include/arch/amd64/tss.h
(limited to 'sys/include/arch/amd64/tss.h')
diff --git a/sys/include/arch/amd64/tss.h b/sys/include/arch/amd64/tss.h
deleted file mode 100644
index ca0ba57..0000000
--- a/sys/include/arch/amd64/tss.h
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * 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 _AMD64_TSS_H_
-#define _AMD64_TSS_H_
-
-#include <sys/types.h>
-#include <sys/cdefs.h>
-
-/*
- * cpu_info is from machine/cpu.h
- *
- * XXX: machine/cpu.h includes this header
- * so we must create this as including
- * machine/cpu.h will not do anything...
- */
-struct cpu_info;
-
-/*
- * A TSS entry (64-bit)
- *
- * See Intel SDM Section 8.2.1 - Task-State Segment (TSS)
- */
-struct __packed tss_entry {
- uint32_t reserved1;
- uint32_t rsp0_lo;
- uint32_t rsp0_hi;
- uint32_t rsp1_lo;
- uint32_t rsp1_hi;
- uint32_t rsp2_lo;
- uint32_t rsp2_hi;
- uint64_t reserved2;
- uint32_t ist1_lo;
- uint32_t ist1_hi;
- uint32_t ist2_lo;
- uint32_t ist2_hi;
- uint32_t ist3_lo;
- uint32_t ist3_hi;
- uint32_t ist4_lo;
- uint32_t ist4_hi;
- uint32_t ist5_lo;
- uint32_t ist5_hi;
- uint32_t ist6_lo;
- uint32_t ist6_hi;
- uint32_t ist7_lo;
- uint32_t ist7_hi;
- uint64_t reserved3;
- uint16_t reserved4;
- uint16_t io_base;
-};
-
-/*
- * TSS descriptor (64-bit)
- *
- * The TSS descriptor describes the location
- * of the TSS segments among other things...
- *
- * See Intel SDM Section 8.2.3 - TSS Descriptor in 64-bit mode
- */
-struct __packed tss_desc {
- uint16_t seglimit;
- uint16_t base_lo16;
- uint8_t base_mid8;
- uint8_t type : 4;
- uint8_t zero : 1;
- uint8_t dpl : 2;
- uint8_t p : 1;
- uint8_t seglimit_hi : 4;
- uint8_t avl : 1;
- uint8_t unused : 2;
- uint8_t g : 1;
- uint8_t base_hi_mid8;
- uint32_t base_hi32;
- uint32_t reserved;
-};
-
-/*
- * Holds the address of the address pointing
- * to the top of an interrupt stack.
- */
-union tss_stack {
- struct {
- uint32_t top_lo;
- uint32_t top_hi;
- };
- uint64_t top;
-};
-
-int tss_alloc_stack(union tss_stack *entry_out, size_t size);
-int tss_update_ist(struct cpu_info *ci, union tss_stack stack, uint8_t istno);
-void write_tss(struct cpu_info *cpu, struct tss_desc *desc);
-void tss_load(void); /* In tss.S */
-
-#endif /* _!_AMD64_TSS_H_ */
--
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