cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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cvmx-boot-vector.h (1606B)

      1/*
      2 * This file is subject to the terms and conditions of the GNU General Public
      3 * License.  See the file "COPYING" in the main directory of this archive
      4 * for more details.
      5 *
      6 * Copyright (C) 2003-2017 Cavium, Inc.
      7 */
      8
      9#ifndef __CVMX_BOOT_VECTOR_H__
     10#define __CVMX_BOOT_VECTOR_H__
     11
     12#include <asm/octeon/octeon.h>
     13
     14/*
     15 * The boot vector table is made up of an array of 1024 elements of
     16 * struct cvmx_boot_vector_element.  There is one entry for each
     17 * possible MIPS CPUNum, indexed by the CPUNum.
     18 *
     19 * Once cvmx_boot_vector_get() returns a non-NULL value (indicating
     20 * success), NMI to a core will cause execution to transfer to the
     21 * target_ptr location for that core's entry in the vector table.
     22 *
     23 * The struct cvmx_boot_vector_element fields app0, app1, and app2 can
     24 * be used by the application that has set the target_ptr in any
     25 * application specific manner, they are not touched by the vectoring
     26 * code.
     27 *
     28 * The boot vector code clobbers the CP0_DESAVE register, and on
     29 * OCTEON II and later CPUs also clobbers CP0_KScratch2.  All GP
     30 * registers are preserved, except on pre-OCTEON II CPUs, where k1 is
     31 * clobbered.
     32 *
     33 */
     34
     35
     36/*
     37 * Applications install the boot bus code in cvmx-boot-vector.c, which
     38 * uses this magic:
     39 */
     40#define OCTEON_BOOT_MOVEABLE_MAGIC1 0xdb00110ad358eacdull
     41
     42struct cvmx_boot_vector_element {
     43	/* kseg0 or xkphys address of target code. */
     44	uint64_t target_ptr;
     45	/* Three application specific arguments. */
     46	uint64_t app0;
     47	uint64_t app1;
     48	uint64_t app2;
     49};
     50
     51struct cvmx_boot_vector_element *cvmx_boot_vector_get(void);
     52
     53#endif /* __CVMX_BOOT_VECTOR_H__ */