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 (1757B)

      1/*
      2 * i386 specific CPU ABI and functions for linux-user
      3 *
      4 *  Copyright (c) 2003 Fabrice Bellard
      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
     20#ifndef I386_TARGET_CPU_H
     21#define I386_TARGET_CPU_H
     22
     23static inline void cpu_clone_regs_child(CPUX86State *env, target_ulong newsp,
     24                                        unsigned flags)
     25{
     26    if (newsp) {
     27        env->regs[R_ESP] = newsp;
     28    }
     29    env->regs[R_EAX] = 0;
     30}
     31
     32static inline void cpu_clone_regs_parent(CPUX86State *env, unsigned flags)
     33{
     34}
     35
     36abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr);
     37
     38#if defined(TARGET_ABI32)
     39abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr);
     40
     41static inline void cpu_set_tls(CPUX86State *env, target_ulong newtls)
     42{
     43    do_set_thread_area(env, newtls);
     44    cpu_x86_load_seg(env, R_GS, env->segs[R_GS].selector);
     45}
     46#else
     47static inline void cpu_set_tls(CPUX86State *env, target_ulong newtls)
     48{
     49    do_arch_prctl(env, TARGET_ARCH_SET_FS, newtls);
     50}
     51#endif /* defined(TARGET_ABI32) */
     52
     53static inline abi_ulong get_sp_from_cpustate(CPUX86State *state)
     54{
     55    return state->regs[R_ESP];
     56}
     57#endif /* I386_TARGET_CPU_H */