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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locore.S (478B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * locore.S
      4 */
      5#include <asm/asm.h>
      6#include <asm/regdef.h>
      7#include <asm/mipsregs.h>
      8
      9	.text
     10
     11/*
     12 * Simple general exception handling routine. This one is used for the
     13 * Memory sizing routine for pmax machines. HK
     14 */
     15
     16NESTED(genexcept_early, 0, sp)
     17	.set	noat
     18	.set	noreorder
     19
     20	mfc0	k0, CP0_STATUS
     21	la	k1, mem_err
     22
     23	sw	k0, 0(k1)
     24
     25	mfc0	k0, CP0_EPC
     26	nop
     27	addiu	k0, 4		# skip the causing instruction
     28	jr	k0
     29	 rfe
     30END(genexcept_early)