i386: split tcg excp_helper into sysemu and user parts

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

[claudio]:
Rebased on commit b8184135 ("target/i386: allow modifying TCG phys-addr-bits")

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Message-Id: <20210322132800.7470-13-cfontana@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/target/i386/tcg/user/excp_helper.c b/target/i386/tcg/user/excp_helper.c
new file mode 100644
index 0000000000..a89b5228fd
--- /dev/null
+++ b/target/i386/tcg/user/excp_helper.c
@@ -0,0 +1,39 @@
+/*
+ *  x86 exception helpers - user-mode specific code
+ *
+ *  Copyright (c) 2003 Fabrice Bellard
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "cpu.h"
+#include "exec/exec-all.h"
+#include "tcg/helper-tcg.h"
+
+bool x86_cpu_tlb_fill(CPUState *cs, vaddr addr, int size,
+                      MMUAccessType access_type, int mmu_idx,
+                      bool probe, uintptr_t retaddr)
+{
+    X86CPU *cpu = X86_CPU(cs);
+    CPUX86State *env = &cpu->env;
+
+    env->cr[2] = addr;
+    env->error_code = (access_type == MMU_DATA_STORE) << PG_ERROR_W_BIT;
+    env->error_code |= PG_ERROR_U_MASK;
+    cs->exception_index = EXCP0E_PAGE;
+    env->exception_is_int = 0;
+    env->exception_next_eip = -1;
+    cpu_loop_exit_restore(cs, retaddr);
+}