cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
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target_cpu.h (1680B)

      1/*
      2 * Alpha specific CPU ABI and functions for linux-user
      3 *
      4 *  Copyright (c) 2007 Jocelyn Mayer
      5 *
      6 * This library is free software; you can redistribute it and/or
      7 * modify it under the terms of the GNU Lesser General Public
      8 * License as published by the Free Software Foundation; either
      9 * version 2.1 of the License, or (at your option) any later version.
     10 *
     11 * This library is distributed in the hope that it will be useful,
     12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14 * Lesser General Public License for more details.
     15 *
     16 * You should have received a copy of the GNU Lesser General Public
     17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
     18 */
     19#ifndef ALPHA_TARGET_CPU_H
     20#define ALPHA_TARGET_CPU_H
     21
     22static inline void cpu_clone_regs_child(CPUAlphaState *env, target_ulong newsp,
     23                                        unsigned flags)
     24{
     25    if (newsp) {
     26        env->ir[IR_SP] = newsp;
     27    }
     28    env->ir[IR_V0] = 0;
     29    env->ir[IR_A3] = 0;
     30    env->ir[IR_A4] = 1;  /* OSF/1 secondary return: child */
     31}
     32
     33static inline void cpu_clone_regs_parent(CPUAlphaState *env, unsigned flags)
     34{
     35    /*
     36     * OSF/1 secondary return: parent
     37     * Note that the kernel does not do this if SETTLS, because the
     38     * settls argument register is still live after copy_thread.
     39     */
     40    if (!(flags & CLONE_SETTLS)) {
     41        env->ir[IR_A4] = 0;
     42    }
     43}
     44
     45static inline void cpu_set_tls(CPUAlphaState *env, target_ulong newtls)
     46{
     47    env->unique = newtls;
     48}
     49
     50static inline abi_ulong get_sp_from_cpustate(CPUAlphaState *state)
     51{
     52    return state->ir[IR_SP];
     53}
     54#endif