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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mangle_pstate_invalid_mode_template.h (803B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * Copyright (C) 2019 ARM Limited
      4 *
      5 * Utility macro to ease definition of testcases toggling mode EL
      6 */
      7
      8#define DEFINE_TESTCASE_MANGLE_PSTATE_INVALID_MODE(_mode)		\
      9									\
     10static int mangle_invalid_pstate_run(struct tdescr *td, siginfo_t *si,	\
     11				     ucontext_t *uc)			\
     12{									\
     13	ASSERT_GOOD_CONTEXT(uc);					\
     14									\
     15	uc->uc_mcontext.pstate &= ~PSR_MODE_MASK;			\
     16	uc->uc_mcontext.pstate |= PSR_MODE_EL ## _mode;			\
     17									\
     18	return 1;							\
     19}									\
     20									\
     21struct tdescr tde = {							\
     22		.sanity_disabled = true,				\
     23		.name = "MANGLE_PSTATE_INVALID_MODE_EL"#_mode,		\
     24		.descr = "Mangling uc_mcontext INVALID MODE EL"#_mode,	\
     25		.sig_trig = SIGUSR1,					\
     26		.sig_ok = SIGSEGV,					\
     27		.run = mangle_invalid_pstate_run,			\
     28}