cpu: Move tlb_fill to tcg_ops

[claudio: wrapped target code in CONFIG_TCG]

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210204163931.7358-7-cfontana@suse.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

26 files changed, 42 insertions, 38 deletions

diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c
index 7a69726..b771780 100644
--- a/accel/tcg/cputlb.c
+++ b/accel/tcg/cputlb.c
@@ -1305,7 +1305,8 @@ static void tlb_fill(CPUState *cpu, target_ulong addr, int size,
      * This is not a probe, so only valid return is success; failure
      * should result in exception + longjmp to the cpu loop.
      */
-    ok = cc->tlb_fill(cpu, addr, size, access_type, mmu_idx, false, retaddr);
+    ok = cc->tcg_ops.tlb_fill(cpu, addr, size,
+                              access_type, mmu_idx, false, retaddr);
     assert(ok);
 }
 
@@ -1576,8 +1577,8 @@ static int probe_access_internal(CPUArchState *env, target_ulong addr,
             CPUState *cs = env_cpu(env);
             CPUClass *cc = CPU_GET_CLASS(cs);
 
-            if (!cc->tlb_fill(cs, addr, fault_size, access_type,
-                              mmu_idx, nonfault, retaddr)) {
+            if (!cc->tcg_ops.tlb_fill(cs, addr, fault_size, access_type,
+                                      mmu_idx, nonfault, retaddr)) {
                 /* Non-faulting page table read failed.  */
                 *phost = NULL;
                 return TLB_INVALID_MASK;
diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c
index 1215b55..5509dd5 100644
--- a/accel/tcg/user-exec.c
+++ b/accel/tcg/user-exec.c
@@ -187,7 +187,7 @@ static inline int handle_cpu_signal(uintptr_t pc, siginfo_t *info,
     clear_helper_retaddr();
 
     cc = CPU_GET_CLASS(cpu);
-    cc->tlb_fill(cpu, address, 0, access_type, MMU_USER_IDX, false, pc);
+    cc->tcg_ops.tlb_fill(cpu, address, 0, access_type, MMU_USER_IDX, false, pc);
     g_assert_not_reached();
 }
 
@@ -217,8 +217,8 @@ static int probe_access_internal(CPUArchState *env, target_ulong addr,
         } else {
             CPUState *cpu = env_cpu(env);
             CPUClass *cc = CPU_GET_CLASS(cpu);
-            cc->tlb_fill(cpu, addr, fault_size, access_type,
-                         MMU_USER_IDX, false, ra);
+            cc->tcg_ops.tlb_fill(cpu, addr, fault_size, access_type,
+                                 MMU_USER_IDX, false, ra);
             g_assert_not_reached();
         }
     }
diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h
index 532984e..94236b6 100644
--- a/include/hw/core/cpu.h
+++ b/include/hw/core/cpu.h
@@ -105,6 +105,18 @@ typedef struct TcgCpuOperations {
     void (*cpu_exec_exit)(CPUState *cpu);
     /** @cpu_exec_interrupt: Callback for processing interrupts in cpu_exec */
     bool (*cpu_exec_interrupt)(CPUState *cpu, int interrupt_request);
+    /**
+     * @tlb_fill: Handle a softmmu tlb miss or user-only address fault
+     *
+     * For system mode, if the access is valid, call tlb_set_page
+     * and return true; if the access is invalid, and probe is
+     * true, return false; otherwise raise an exception and do
+     * not return.  For user-only mode, always raise an exception
+     * and do not return.
+     */
+    bool (*tlb_fill)(CPUState *cpu, vaddr address, int size,
+                     MMUAccessType access_type, int mmu_idx,
+                     bool probe, uintptr_t retaddr);
 
 } TcgCpuOperations;
 
@@ -138,12 +150,6 @@ typedef struct TcgCpuOperations {
  *       If the target behaviour here is anything other than "set
  *       the PC register to the value passed in" then the target must
  *       also implement the synchronize_from_tb hook.
- * @tlb_fill: Callback for handling a softmmu tlb miss or user-only
- *       address fault.  For system mode, if the access is valid, call
- *       tlb_set_page and return true; if the access is invalid, and
- *       probe is true, return false; otherwise raise an exception and
- *       do not return.  For user-only mode, always raise an exception
- *       and do not return.
  * @get_phys_page_debug: Callback for obtaining a physical address.
  * @get_phys_page_attrs_debug: Callback for obtaining a physical address and the
  *       associated memory transaction attributes to use for the access.
@@ -211,9 +217,6 @@ struct CPUClass {
     void (*get_memory_mapping)(CPUState *cpu, MemoryMappingList *list,
                                Error **errp);
     void (*set_pc)(CPUState *cpu, vaddr value);
-    bool (*tlb_fill)(CPUState *cpu, vaddr address, int size,
-                     MMUAccessType access_type, int mmu_idx,
-                     bool probe, uintptr_t retaddr);
     hwaddr (*get_phys_page_debug)(CPUState *cpu, vaddr addr);
     hwaddr (*get_phys_page_attrs_debug)(CPUState *cpu, vaddr addr,
                                         MemTxAttrs *attrs);
diff --git a/target/alpha/cpu.c b/target/alpha/cpu.c
index d9ced16..9f36f82 100644
--- a/target/alpha/cpu.c
+++ b/target/alpha/cpu.c
@@ -223,7 +223,7 @@ static void alpha_cpu_class_init(ObjectClass *oc, void *data)
     cc->set_pc = alpha_cpu_set_pc;
     cc->gdb_read_register = alpha_cpu_gdb_read_register;
     cc->gdb_write_register = alpha_cpu_gdb_write_register;
-    cc->tlb_fill = alpha_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = alpha_cpu_tlb_fill;
 #ifndef CONFIG_USER_ONLY
     cc->do_transaction_failed = alpha_cpu_do_transaction_failed;
     cc->do_unaligned_access = alpha_cpu_do_unaligned_access;
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 98a5a0c..27a16c1 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -2279,7 +2279,7 @@ static void arm_cpu_class_init(ObjectClass *oc, void *data)
     cc->tcg_ops.initialize = arm_translate_init;
     cc->tcg_ops.cpu_exec_interrupt = arm_cpu_exec_interrupt;
     cc->tcg_ops.synchronize_from_tb = arm_cpu_synchronize_from_tb;
-    cc->tlb_fill = arm_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = arm_cpu_tlb_fill;
     cc->debug_excp_handler = arm_debug_excp_handler;
     cc->debug_check_watchpoint = arm_debug_check_watchpoint;
     cc->do_unaligned_access = arm_cpu_do_unaligned_access;
diff --git a/target/avr/cpu.c b/target/avr/cpu.c
index 499a98d..d6e9304 100644
--- a/target/avr/cpu.c
+++ b/target/avr/cpu.c
@@ -204,7 +204,7 @@ static void avr_cpu_class_init(ObjectClass *oc, void *data)
     cc->set_pc = avr_cpu_set_pc;
     cc->memory_rw_debug = avr_cpu_memory_rw_debug;
     cc->get_phys_page_debug = avr_cpu_get_phys_page_debug;
-    cc->tlb_fill = avr_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = avr_cpu_tlb_fill;
     cc->vmsd = &vms_avr_cpu;
     cc->disas_set_info = avr_cpu_disas_set_info;
     cc->tcg_ops.initialize = avr_cpu_tcg_init;
diff --git a/target/cris/cpu.c b/target/cris/cpu.c
index 7489fc2..9222717 100644
--- a/target/cris/cpu.c
+++ b/target/cris/cpu.c
@@ -274,7 +274,7 @@ static void cris_cpu_class_init(ObjectClass *oc, void *data)
     cc->set_pc = cris_cpu_set_pc;
     cc->gdb_read_register = cris_cpu_gdb_read_register;
     cc->gdb_write_register = cris_cpu_gdb_write_register;
-    cc->tlb_fill = cris_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = cris_cpu_tlb_fill;
 #ifndef CONFIG_USER_ONLY
     cc->get_phys_page_debug = cris_cpu_get_phys_page_debug;
     dc->vmsd = &vmstate_cris_cpu;
diff --git a/target/hppa/cpu.c b/target/hppa/cpu.c
index 34c5982..d5a2501 100644
--- a/target/hppa/cpu.c
+++ b/target/hppa/cpu.c
@@ -147,7 +147,7 @@ static void hppa_cpu_class_init(ObjectClass *oc, void *data)
     cc->tcg_ops.synchronize_from_tb = hppa_cpu_synchronize_from_tb;
     cc->gdb_read_register = hppa_cpu_gdb_read_register;
     cc->gdb_write_register = hppa_cpu_gdb_write_register;
-    cc->tlb_fill = hppa_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = hppa_cpu_tlb_fill;
 #ifndef CONFIG_USER_ONLY
     cc->get_phys_page_debug = hppa_cpu_get_phys_page_debug;
     dc->vmsd = &vmstate_hppa_cpu;
diff --git a/target/i386/tcg/tcg-cpu.c b/target/i386/tcg/tcg-cpu.c
index b7c485a..85b6922 100644
--- a/target/i386/tcg/tcg-cpu.c
+++ b/target/i386/tcg/tcg-cpu.c
@@ -65,7 +65,7 @@ void tcg_cpu_common_class_init(CPUClass *cc)
     cc->tcg_ops.cpu_exec_enter = x86_cpu_exec_enter;
     cc->tcg_ops.cpu_exec_exit = x86_cpu_exec_exit;
     cc->tcg_ops.initialize = tcg_x86_init;
-    cc->tlb_fill = x86_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = x86_cpu_tlb_fill;
 #ifndef CONFIG_USER_ONLY
     cc->debug_excp_handler = breakpoint_handler;
 #endif
diff --git a/target/lm32/cpu.c b/target/lm32/cpu.c
index eea2d3e..76dc728 100644
--- a/target/lm32/cpu.c
+++ b/target/lm32/cpu.c
@@ -228,7 +228,7 @@ static void lm32_cpu_class_init(ObjectClass *oc, void *data)
     cc->set_pc = lm32_cpu_set_pc;
     cc->gdb_read_register = lm32_cpu_gdb_read_register;
     cc->gdb_write_register = lm32_cpu_gdb_write_register;
-    cc->tlb_fill = lm32_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = lm32_cpu_tlb_fill;
 #ifndef CONFIG_USER_ONLY
     cc->get_phys_page_debug = lm32_cpu_get_phys_page_debug;
     cc->vmsd = &vmstate_lm32_cpu;
diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c
index 0d5f8e0..e38e4d5 100644
--- a/target/m68k/cpu.c
+++ b/target/m68k/cpu.c
@@ -471,7 +471,7 @@ static void m68k_cpu_class_init(ObjectClass *c, void *data)
     cc->set_pc = m68k_cpu_set_pc;
     cc->gdb_read_register = m68k_cpu_gdb_read_register;
     cc->gdb_write_register = m68k_cpu_gdb_write_register;
-    cc->tlb_fill = m68k_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = m68k_cpu_tlb_fill;
 #if defined(CONFIG_SOFTMMU)
     cc->do_transaction_failed = m68k_cpu_transaction_failed;
     cc->get_phys_page_debug = m68k_cpu_get_phys_page_debug;
diff --git a/target/microblaze/cpu.c b/target/microblaze/cpu.c
index 35b4b2e..3c09507 100644
--- a/target/microblaze/cpu.c
+++ b/target/microblaze/cpu.c
@@ -372,7 +372,7 @@ static void mb_cpu_class_init(ObjectClass *oc, void *data)
     cc->tcg_ops.synchronize_from_tb = mb_cpu_synchronize_from_tb;
     cc->gdb_read_register = mb_cpu_gdb_read_register;
     cc->gdb_write_register = mb_cpu_gdb_write_register;
-    cc->tlb_fill = mb_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = mb_cpu_tlb_fill;
 #ifndef CONFIG_USER_ONLY
     cc->do_transaction_failed = mb_cpu_transaction_failed;
     cc->get_phys_page_attrs_debug = mb_cpu_get_phys_page_attrs_debug;
diff --git a/target/mips/cpu.c b/target/mips/cpu.c
index 929f98a..63c0f3b 100644
--- a/target/mips/cpu.c
+++ b/target/mips/cpu.c
@@ -692,7 +692,7 @@ static void mips_cpu_class_init(ObjectClass *c, void *data)
     cc->tcg_ops.initialize = mips_tcg_init;
     cc->tcg_ops.cpu_exec_interrupt = mips_cpu_exec_interrupt;
     cc->tcg_ops.synchronize_from_tb = mips_cpu_synchronize_from_tb;
-    cc->tlb_fill = mips_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = mips_cpu_tlb_fill;
 #endif
 
     cc->gdb_num_core_regs = 73;
diff --git a/target/moxie/cpu.c b/target/moxie/cpu.c
index 224cfc8..1177d09 100644
--- a/target/moxie/cpu.c
+++ b/target/moxie/cpu.c
@@ -110,7 +110,7 @@ static void moxie_cpu_class_init(ObjectClass *oc, void *data)
     cc->do_interrupt = moxie_cpu_do_interrupt;
     cc->dump_state = moxie_cpu_dump_state;
     cc->set_pc = moxie_cpu_set_pc;
-    cc->tlb_fill = moxie_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = moxie_cpu_tlb_fill;
 #ifndef CONFIG_USER_ONLY
     cc->get_phys_page_debug = moxie_cpu_get_phys_page_debug;
     cc->vmsd = &vmstate_moxie_cpu;
diff --git a/target/nios2/cpu.c b/target/nios2/cpu.c
index b0d51f7..1384836 100644
--- a/target/nios2/cpu.c
+++ b/target/nios2/cpu.c
@@ -226,7 +226,7 @@ static void nios2_cpu_class_init(ObjectClass *oc, void *data)
     cc->dump_state = nios2_cpu_dump_state;
     cc->set_pc = nios2_cpu_set_pc;
     cc->disas_set_info = nios2_cpu_disas_set_info;
-    cc->tlb_fill = nios2_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = nios2_cpu_tlb_fill;
 #ifndef CONFIG_USER_ONLY
     cc->do_unaligned_access = nios2_cpu_do_unaligned_access;
     cc->get_phys_page_debug = nios2_cpu_get_phys_page_debug;
diff --git a/target/openrisc/cpu.c b/target/openrisc/cpu.c
index 48c416e..9857bfd 100644
--- a/target/openrisc/cpu.c
+++ b/target/openrisc/cpu.c
@@ -192,7 +192,7 @@ static void openrisc_cpu_class_init(ObjectClass *oc, void *data)
     cc->set_pc = openrisc_cpu_set_pc;
     cc->gdb_read_register = openrisc_cpu_gdb_read_register;
     cc->gdb_write_register = openrisc_cpu_gdb_write_register;
-    cc->tlb_fill = openrisc_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = openrisc_cpu_tlb_fill;
 #ifndef CONFIG_USER_ONLY
     cc->get_phys_page_debug = openrisc_cpu_get_phys_page_debug;
     dc->vmsd = &vmstate_openrisc_cpu;
diff --git a/target/ppc/translate_init.c.inc b/target/ppc/translate_init.c.inc
index 2b03436..1e0fc5a 100644
--- a/target/ppc/translate_init.c.inc
+++ b/target/ppc/translate_init.c.inc
@@ -10883,7 +10883,7 @@ static void ppc_cpu_class_init(ObjectClass *oc, void *data)
 #ifdef CONFIG_TCG
     cc->tcg_ops.initialize = ppc_translate_init;
     cc->tcg_ops.cpu_exec_interrupt = ppc_cpu_exec_interrupt;
-    cc->tlb_fill = ppc_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = ppc_cpu_tlb_fill;
 #ifndef CONFIG_USER_ONLY
     cc->tcg_ops.cpu_exec_enter = ppc_cpu_exec_enter;
     cc->tcg_ops.cpu_exec_exit = ppc_cpu_exec_exit;
diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index 81ec7e6..9d81392 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -618,7 +618,7 @@ static void riscv_cpu_class_init(ObjectClass *c, void *data)
     cc->gdb_arch_name = riscv_gdb_arch_name;
     cc->gdb_get_dynamic_xml = riscv_gdb_get_dynamic_xml;
     cc->tcg_ops.initialize = riscv_translate_init;
-    cc->tlb_fill = riscv_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = riscv_cpu_tlb_fill;
 
     device_class_set_props(dc, riscv_cpu_properties);
 }
diff --git a/target/rx/cpu.c b/target/rx/cpu.c
index 9493e90..7760972 100644
--- a/target/rx/cpu.c
+++ b/target/rx/cpu.c
@@ -196,7 +196,7 @@ static void rx_cpu_class_init(ObjectClass *klass, void *data)
     cc->get_phys_page_debug = rx_cpu_get_phys_page_debug;
     cc->disas_set_info = rx_cpu_disas_set_info;
     cc->tcg_ops.initialize = rx_translate_init;
-    cc->tlb_fill = rx_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = rx_cpu_tlb_fill;
 
     cc->gdb_num_core_regs = 26;
     cc->gdb_core_xml_file = "rx-core.xml";
diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c
index 53c2f6f..ceee62d 100644
--- a/target/s390x/cpu.c
+++ b/target/s390x/cpu.c
@@ -516,7 +516,7 @@ static void s390_cpu_class_init(ObjectClass *oc, void *data)
     cc->disas_set_info = s390_cpu_disas_set_info;
 #ifdef CONFIG_TCG
     cc->tcg_ops.initialize = s390x_translate_init;
-    cc->tlb_fill = s390_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = s390_cpu_tlb_fill;
 #endif
 
     cc->gdb_num_core_regs = S390_NUM_CORE_REGS;
diff --git a/target/sh4/cpu.c b/target/sh4/cpu.c
index b2d4e36..1f6c687 100644
--- a/target/sh4/cpu.c
+++ b/target/sh4/cpu.c
@@ -226,7 +226,7 @@ static void superh_cpu_class_init(ObjectClass *oc, void *data)
     cc->tcg_ops.synchronize_from_tb = superh_cpu_synchronize_from_tb;
     cc->gdb_read_register = superh_cpu_gdb_read_register;
     cc->gdb_write_register = superh_cpu_gdb_write_register;
-    cc->tlb_fill = superh_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = superh_cpu_tlb_fill;
 #ifndef CONFIG_USER_ONLY
     cc->do_unaligned_access = superh_cpu_do_unaligned_access;
     cc->get_phys_page_debug = superh_cpu_get_phys_page_debug;
diff --git a/target/sparc/cpu.c b/target/sparc/cpu.c
index 1399394..19e90a4 100644
--- a/target/sparc/cpu.c
+++ b/target/sparc/cpu.c
@@ -873,7 +873,7 @@ static void sparc_cpu_class_init(ObjectClass *oc, void *data)
     cc->tcg_ops.synchronize_from_tb = sparc_cpu_synchronize_from_tb;
     cc->gdb_read_register = sparc_cpu_gdb_read_register;
     cc->gdb_write_register = sparc_cpu_gdb_write_register;
-    cc->tlb_fill = sparc_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = sparc_cpu_tlb_fill;
 #ifndef CONFIG_USER_ONLY
     cc->do_transaction_failed = sparc_cpu_do_transaction_failed;
     cc->do_unaligned_access = sparc_cpu_do_unaligned_access;
diff --git a/target/tilegx/cpu.c b/target/tilegx/cpu.c
index 4c6176d..75b3a4b 100644
--- a/target/tilegx/cpu.c
+++ b/target/tilegx/cpu.c
@@ -151,7 +151,7 @@ static void tilegx_cpu_class_init(ObjectClass *oc, void *data)
     cc->tcg_ops.cpu_exec_interrupt = tilegx_cpu_exec_interrupt;
     cc->dump_state = tilegx_cpu_dump_state;
     cc->set_pc = tilegx_cpu_set_pc;
-    cc->tlb_fill = tilegx_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = tilegx_cpu_tlb_fill;
     cc->gdb_num_core_regs = 0;
     cc->tcg_ops.initialize = tilegx_tcg_init;
 }
diff --git a/target/tricore/cpu.c b/target/tricore/cpu.c
index 09cc6a0..9b21b640 100644
--- a/target/tricore/cpu.c
+++ b/target/tricore/cpu.c
@@ -165,7 +165,7 @@ static void tricore_cpu_class_init(ObjectClass *c, void *data)
     cc->tcg_ops.synchronize_from_tb = tricore_cpu_synchronize_from_tb;
     cc->get_phys_page_debug = tricore_cpu_get_phys_page_debug;
     cc->tcg_ops.initialize = tricore_tcg_init;
-    cc->tlb_fill = tricore_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = tricore_cpu_tlb_fill;
 }
 
 #define DEFINE_TRICORE_CPU_TYPE(cpu_model, initfn) \
diff --git a/target/unicore32/cpu.c b/target/unicore32/cpu.c
index 84c3419..a57d315 100644
--- a/target/unicore32/cpu.c
+++ b/target/unicore32/cpu.c
@@ -135,7 +135,7 @@ static void uc32_cpu_class_init(ObjectClass *oc, void *data)
     cc->tcg_ops.cpu_exec_interrupt = uc32_cpu_exec_interrupt;
     cc->dump_state = uc32_cpu_dump_state;
     cc->set_pc = uc32_cpu_set_pc;
-    cc->tlb_fill = uc32_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = uc32_cpu_tlb_fill;
     cc->get_phys_page_debug = uc32_cpu_get_phys_page_debug;
     cc->tcg_ops.initialize = uc32_translate_init;
     dc->vmsd = &vmstate_uc32_cpu;
diff --git a/target/xtensa/cpu.c b/target/xtensa/cpu.c
index 42a5e4e..e764dbe 100644
--- a/target/xtensa/cpu.c
+++ b/target/xtensa/cpu.c
@@ -201,7 +201,7 @@ static void xtensa_cpu_class_init(ObjectClass *oc, void *data)
     cc->gdb_read_register = xtensa_cpu_gdb_read_register;
     cc->gdb_write_register = xtensa_cpu_gdb_write_register;
     cc->gdb_stop_before_watchpoint = true;
-    cc->tlb_fill = xtensa_cpu_tlb_fill;
+    cc->tcg_ops.tlb_fill = xtensa_cpu_tlb_fill;
 #ifndef CONFIG_USER_ONLY
     cc->do_unaligned_access = xtensa_cpu_do_unaligned_access;
     cc->get_phys_page_debug = xtensa_cpu_get_phys_page_debug;