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Diffstat (limited to 'sys/include/arch/amd64/msr.h')
-rw-r--r-- | sys/include/arch/amd64/msr.h | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/sys/include/arch/amd64/msr.h b/sys/include/arch/amd64/msr.h deleted file mode 100644 index d36548b..0000000 --- a/sys/include/arch/amd64/msr.h +++ /dev/null @@ -1,66 +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_MSR_H_ -#define _AMD64_MSR_H_ - -#include <sys/types.h> -#include <sys/cdefs.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 /* !_AMD64_MSR_H_ */ |