File 0201-Introduce-cpu_clean_all_dirty.patch of Package qemu-linux-user.7445

Overview Repositories Revisions Requests Users Attributes Meta

File 0201-Introduce-cpu_clean_all_dirty.patch of Package qemu-linux-user.7445

From 51701e210841ab541a07a142a938a677369a3714 Mon Sep 17 00:00:00 2001
From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Fri, 5 Sep 2014 10:52:46 -0300
Subject: [PATCH] Introduce cpu_clean_all_dirty

Introduce cpu_clean_all_dirty, to force subsequent cpu_synchronize_all_states
to read in-kernel register state.

Cc: qemu-stable@nongnu.org
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit de9d61e83d43be9069e6646fa9d57a3f47779d28)
[BSC#947164, BSC#953187]
Signed-off-by: Bruce Rogers <brogers@suse.com>

Conflicts:
	kvm-all.c
---
 cpus.c                | 9 +++++++++
 include/sysemu/cpus.h | 1 +
 include/sysemu/kvm.h  | 8 ++++++++
 kvm-all.c             | 5 +++++
 4 files changed, 23 insertions(+)

diff --git a/cpus.c b/cpus.c
index 1104d6175c..485d02ccca 100644
--- a/cpus.c
+++ b/cpus.c
@@ -522,6 +522,15 @@ void cpu_synchronize_all_post_init(void)
     }
 }
 
+void cpu_clean_all_dirty(void)
+{
+    CPUState *cpu;
+
+    CPU_FOREACH(cpu) {
+        cpu_clean_state(cpu);
+    }
+}
+
 static int do_vm_stop(RunState state)
 {
     int ret = 0;
diff --git a/include/sysemu/cpus.h b/include/sysemu/cpus.h
index 6502488a05..4f8a3dfa56 100644
--- a/include/sysemu/cpus.h
+++ b/include/sysemu/cpus.h
@@ -10,6 +10,7 @@ void cpu_stop_current(void);
 void cpu_synchronize_all_states(void);
 void cpu_synchronize_all_post_reset(void);
 void cpu_synchronize_all_post_init(void);
+void cpu_clean_all_dirty(void);
 
 void qtest_clock_warp(int64_t dest);
 
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index 21237decbb..d2c33c0652 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -307,6 +307,7 @@ int kvm_physical_memory_addr_from_host(KVMState *s, void *ram_addr,
 void kvm_cpu_synchronize_state(CPUState *cpu);
 void kvm_cpu_synchronize_post_reset(CPUState *cpu);
 void kvm_cpu_synchronize_post_init(CPUState *cpu);
+void kvm_cpu_clean_state(CPUState *cpu);
 
 /* generic hooks - to be moved/refactored once there are more users */
 
@@ -331,6 +332,13 @@ static inline void cpu_synchronize_post_init(CPUState *cpu)
     }
 }
 
+static inline void cpu_clean_state(CPUState *cpu)
+{
+    if (kvm_enabled()) {
+        kvm_cpu_clean_state(cpu);
+    }
+}
+
 int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg);
 int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg);
 void kvm_irqchip_release_virq(KVMState *s, int virq);
diff --git a/kvm-all.c b/kvm-all.c
index 21cdc321df..136ece37bc 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -1642,6 +1642,11 @@ void kvm_cpu_synchronize_post_init(CPUState *cpu)
     cpu->kvm_vcpu_dirty = false;
 }
 
+void kvm_cpu_clean_state(CPUState *cpu)
+{
+    cpu->kvm_vcpu_dirty = false;
+}
+
 int kvm_cpu_exec(CPUState *cpu)
 {
     struct kvm_run *run = cpu->kvm_run;

Places

File 0201-Introduce-cpu_clean_all_dirty.patch of Package qemu-linux-user.7445

Places