Merge remote-tracking branch 'remotes/rth-gitlab/tags/pull-tcg-20210205' into staging

TCGCPUOps cleanups (claudio)
tcg/s390 compare fix (phil)
tcg/aarch64 rotli_vec fix
tcg/tci cleanups and fixes

# gpg: Signature made Fri 05 Feb 2021 22:55:10 GMT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth-gitlab/tags/pull-tcg-20210205: (46 commits)
  accel: introduce AccelCPUClass extending CPUClass
  accel: replace struct CpusAccel with AccelOpsClass
  accel: extend AccelState and AccelClass to user-mode
  cpu: tcg_ops: move to tcg-cpu-ops.h, keep a pointer in CPUClass
  cpu: move debug_check_watchpoint to tcg_ops
  cpu: move adjust_watchpoint_address to tcg_ops
  physmem: make watchpoint checking code TCG-only
  cpu: move do_unaligned_access to tcg_ops
  cpu: move cc->transaction_failed to tcg_ops
  cpu: move cc->do_interrupt to tcg_ops
  target/arm: do not use cc->do_interrupt for KVM directly
  cpu: Move debug_excp_handler to tcg_ops
  cpu: Move tlb_fill to tcg_ops
  cpu: Move cpu_exec_* to tcg_ops
  cpu: Move synchronize_from_tb() to tcg_ops
  accel/tcg: split TCG-only code from cpu_exec_realizefn
  target/riscv: remove CONFIG_TCG, as it is always TCG
  cpu: Introduce TCGCpuOperations struct
  tcg/tci: Remove TCG_CONST
  tcg/tci: Fix TCG_REG_R4 misusage
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 41 insertions, 12 deletions

diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c
index 6d017e46dd..d9ef69121c 100644
--- a/accel/tcg/cpu-exec.c
+++ b/accel/tcg/cpu-exec.c
@@ -21,6 +21,7 @@
 #include "qemu-common.h"
 #include "qemu/qemu-print.h"
 #include "cpu.h"
+#include "hw/core/tcg-cpu-ops.h"
 #include "trace.h"
 #include "disas/disas.h"
 #include "exec/exec-all.h"
@@ -213,8 +214,8 @@ cpu_tb_exec(CPUState *cpu, TranslationBlock *itb, int *tb_exit)
                                TARGET_FMT_lx "] %s\n",
                                last_tb->tc.ptr, last_tb->pc,
                                lookup_symbol(last_tb->pc));
-        if (cc->synchronize_from_tb) {
-            cc->synchronize_from_tb(cpu, last_tb);
+        if (cc->tcg_ops->synchronize_from_tb) {
+            cc->tcg_ops->synchronize_from_tb(cpu, last_tb);
         } else {
             assert(cc->set_pc);
             cc->set_pc(cpu, last_tb->pc);
@@ -262,8 +263,8 @@ static void cpu_exec_enter(CPUState *cpu)
 {
     CPUClass *cc = CPU_GET_CLASS(cpu);
 
-    if (cc->cpu_exec_enter) {
-        cc->cpu_exec_enter(cpu);
+    if (cc->tcg_ops->cpu_exec_enter) {
+        cc->tcg_ops->cpu_exec_enter(cpu);
     }
 }
 
@@ -271,8 +272,8 @@ static void cpu_exec_exit(CPUState *cpu)
 {
     CPUClass *cc = CPU_GET_CLASS(cpu);
 
-    if (cc->cpu_exec_exit) {
-        cc->cpu_exec_exit(cpu);
+    if (cc->tcg_ops->cpu_exec_exit) {
+        cc->tcg_ops->cpu_exec_exit(cpu);
     }
 }
 
@@ -512,8 +513,8 @@ static inline void cpu_handle_debug_exception(CPUState *cpu)
         }
     }
 
-    if (cc->debug_excp_handler) {
-        cc->debug_excp_handler(cpu);
+    if (cc->tcg_ops->debug_excp_handler) {
+        cc->tcg_ops->debug_excp_handler(cpu);
     }
 }
 
@@ -547,7 +548,7 @@ static inline bool cpu_handle_exception(CPUState *cpu, int *ret)
            loop */
 #if defined(TARGET_I386)
         CPUClass *cc = CPU_GET_CLASS(cpu);
-        cc->do_interrupt(cpu);
+        cc->tcg_ops->do_interrupt(cpu);
 #endif
         *ret = cpu->exception_index;
         cpu->exception_index = -1;
@@ -556,7 +557,7 @@ static inline bool cpu_handle_exception(CPUState *cpu, int *ret)
         if (replay_exception()) {
             CPUClass *cc = CPU_GET_CLASS(cpu);
             qemu_mutex_lock_iothread();
-            cc->do_interrupt(cpu);
+            cc->tcg_ops->do_interrupt(cpu);
             qemu_mutex_unlock_iothread();
             cpu->exception_index = -1;
 
@@ -655,8 +656,8 @@ static inline bool cpu_handle_interrupt(CPUState *cpu,
            True when it is, and we should restart on a new TB,
            and via longjmp via cpu_loop_exit.  */
         else {
-            if (cc->cpu_exec_interrupt &&
-                cc->cpu_exec_interrupt(cpu, interrupt_request)) {
+            if (cc->tcg_ops->cpu_exec_interrupt &&
+                cc->tcg_ops->cpu_exec_interrupt(cpu, interrupt_request)) {
                 if (need_replay_interrupt(interrupt_request)) {
                     replay_interrupt();
                 }
@@ -828,6 +829,34 @@ int cpu_exec(CPUState *cpu)
     return ret;
 }
 
+void tcg_exec_realizefn(CPUState *cpu, Error **errp)
+{
+    static bool tcg_target_initialized;
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    if (!tcg_target_initialized) {
+        cc->tcg_ops->initialize();
+        tcg_target_initialized = true;
+    }
+    tlb_init(cpu);
+    qemu_plugin_vcpu_init_hook(cpu);
+
+#ifndef CONFIG_USER_ONLY
+    tcg_iommu_init_notifier_list(cpu);
+#endif /* !CONFIG_USER_ONLY */
+}
+
+/* undo the initializations in reverse order */
+void tcg_exec_unrealizefn(CPUState *cpu)
+{
+#ifndef CONFIG_USER_ONLY
+    tcg_iommu_free_notifier_list(cpu);
+#endif /* !CONFIG_USER_ONLY */
+
+    qemu_plugin_vcpu_exit_hook(cpu);
+    tlb_destroy(cpu);
+}
+
 #ifndef CONFIG_USER_ONLY
 
 void dump_drift_info(void)