b39030942d
For now we just copy over the previous user stubs, but really,
everything that requires s->cpl == 0 should be impossible
to trigger from user-mode emulation.
Later on we should add a check that asserts this easily f.e.:
static bool check_cpl0(DisasContext *s)
{
int cpl = s->cpl;
#ifdef CONFIG_USER_ONLY
assert(cpl == 3);
#endif
if (cpl != 0) {
gen_exception(s, EXCP0D_GPF, s->pc_start - s->cs_base);
return false;
}
return true;
}
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210322132800.7470-17-cfontana@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
77 lines
1.7 KiB
C
77 lines
1.7 KiB
C
/*
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* x86 SVM helpers (user-mode)
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "cpu.h"
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#include "exec/helper-proto.h"
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#include "tcg/helper-tcg.h"
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void helper_vmrun(CPUX86State *env, int aflag, int next_eip_addend)
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{
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}
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void helper_vmmcall(CPUX86State *env)
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{
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}
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void helper_vmload(CPUX86State *env, int aflag)
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{
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}
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void helper_vmsave(CPUX86State *env, int aflag)
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{
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}
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void helper_stgi(CPUX86State *env)
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{
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}
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void helper_clgi(CPUX86State *env)
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{
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}
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void helper_skinit(CPUX86State *env)
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{
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}
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void helper_invlpga(CPUX86State *env, int aflag)
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{
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}
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void cpu_vmexit(CPUX86State *nenv, uint32_t exit_code, uint64_t exit_info_1,
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uintptr_t retaddr)
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{
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assert(0);
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}
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void helper_svm_check_intercept_param(CPUX86State *env, uint32_t type,
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uint64_t param)
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{
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}
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void cpu_svm_check_intercept_param(CPUX86State *env, uint32_t type,
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uint64_t param, uintptr_t retaddr)
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{
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}
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void helper_svm_check_io(CPUX86State *env, uint32_t port, uint32_t param,
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uint32_t next_eip_addend)
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{
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}
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