i386: hvf: Add hvf_cpu_synchronize_pre_loadvm()

hvf lacks an implementation of cpu_synchronize_pre_loadvm().

Cc: Cameron Esfahani <dirty@apple.com>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Message-Id: <20200630102824.77604-4-r.bolshakov@yadro.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

3 files changed, 15 insertions, 0 deletions

diff --git a/include/sysemu/hvf.h b/include/sysemu/hvf.h
index 5214ed5202..1d40a8ec01 100644
--- a/include/sysemu/hvf.h
+++ b/include/sysemu/hvf.h
@@ -28,6 +28,7 @@ int hvf_vcpu_exec(CPUState *);
 void hvf_cpu_synchronize_state(CPUState *);
 void hvf_cpu_synchronize_post_reset(CPUState *);
 void hvf_cpu_synchronize_post_init(CPUState *);
+void hvf_cpu_synchronize_pre_loadvm(CPUState *);
 void hvf_vcpu_destroy(CPUState *);
 void hvf_reset_vcpu(CPUState *);
 
diff --git a/include/sysemu/hw_accel.h b/include/sysemu/hw_accel.h
index 80bce75921..e128f8b06b 100644
--- a/include/sysemu/hw_accel.h
+++ b/include/sysemu/hw_accel.h
@@ -73,6 +73,9 @@ static inline void cpu_synchronize_pre_loadvm(CPUState *cpu)
     if (hax_enabled()) {
         hax_cpu_synchronize_pre_loadvm(cpu);
     }
+    if (hvf_enabled()) {
+        hvf_cpu_synchronize_pre_loadvm(cpu);
+    }
     if (whpx_enabled()) {
         whpx_cpu_synchronize_pre_loadvm(cpu);
     }
diff --git a/target/i386/hvf/hvf.c b/target/i386/hvf/hvf.c
index be016b951a..efe9802962 100644
--- a/target/i386/hvf/hvf.c
+++ b/target/i386/hvf/hvf.c
@@ -325,6 +325,17 @@ void hvf_cpu_synchronize_post_init(CPUState *cpu_state)
     run_on_cpu(cpu_state, do_hvf_cpu_synchronize_post_init, RUN_ON_CPU_NULL);
 }
 
+static void do_hvf_cpu_synchronize_pre_loadvm(CPUState *cpu,
+                                              run_on_cpu_data arg)
+{
+    cpu->vcpu_dirty = true;
+}
+
+void hvf_cpu_synchronize_pre_loadvm(CPUState *cpu)
+{
+    run_on_cpu(cpu, do_hvf_cpu_synchronize_pre_loadvm, RUN_ON_CPU_NULL);
+}
+
 static bool ept_emulation_fault(hvf_slot *slot, uint64_t gpa, uint64_t ept_qual)
 {
     int read, write;