cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

abort-ev7.S (529B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#include <linux/linkage.h>
      3#include <asm/assembler.h>
      4/*
      5 * Function: v7_early_abort
      6 *
      7 * Params  : r2 = pt_regs
      8 *	   : r4 = aborted context pc
      9 *	   : r5 = aborted context psr
     10 *
     11 * Returns : r4 - r11, r13 preserved
     12 *
     13 * Purpose : obtain information about current aborted instruction.
     14 */
     15	.align	5
     16ENTRY(v7_early_abort)
     17	mrc	p15, 0, r1, c5, c0, 0		@ get FSR
     18	mrc	p15, 0, r0, c6, c0, 0		@ get FAR
     19	uaccess_disable ip			@ disable userspace access
     20	b	do_DataAbort
     21ENDPROC(v7_early_abort)