[RFC,11/19] accel/kvm: Introduce kvm_vcpu_state() helper

Commit Message

Philippe Mathieu-Daudé March 3, 2021, 6:22 p.m. UTC

Signed-off-by: Philippe Mathieu-Daudé <[e-mail]>
---
 include/sysemu/kvm.h | 2 ++
 accel/kvm/kvm-all.c  | 5 +++++
 target/i386/cpu.c    | 4 ++--
 3 files changed, 9 insertions(+), 2 deletions(-)

Patch

diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index 687c598be9b..f339be31d1b 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -361,6 +361,8 @@  int kvm_arch_init_vcpu(CPUState *cpu);
 int kvm_arch_destroy_vcpu(CPUState *cpu);
 
 bool kvm_vcpu_id_is_valid(int vcpu_id);
+/* Returns a pointer to the KVMState associated with this vCPU */
+KVMState *kvm_vcpu_state(CPUState *cpu);
 
 /* Returns VCPU ID to be used on KVM_CREATE_VCPU ioctl() */
 unsigned long kvm_arch_vcpu_id(CPUState *cpu);
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index 84c943fcdb2..b787d590a9a 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -1978,6 +1978,11 @@  bool kvm_vcpu_id_is_valid(int vcpu_id)
     return vcpu_id >= 0 && vcpu_id < kvm_max_vcpu_id(s);
 }
 
+KVMState *kvm_vcpu_state(CPUState *cpu)
+{
+    return cpu->kvm_state;
+}
+
 static int kvm_init(MachineState *ms)
 {
     MachineClass *mc = MACHINE_GET_CLASS(ms);
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 6a53446e6a5..0d6376322bb 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -5755,7 +5755,7 @@  void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
     case 0xA:
         /* Architectural Performance Monitoring Leaf */
         if (kvm_enabled() && cpu->enable_pmu) {
-            KVMState *s = cs->kvm_state;
+            KVMState *s = kvm_vcpu_state(cs);
 
             *eax = kvm_arch_get_supported_cpuid(s, 0xA, count, R_EAX);
             *ebx = kvm_arch_get_supported_cpuid(s, 0xA, count, R_EBX);
@@ -6620,7 +6620,7 @@  static void x86_cpu_filter_features(X86CPU *cpu, bool verbose)
 
     if ((env->features[FEAT_7_0_EBX] & CPUID_7_0_EBX_INTEL_PT) &&
         kvm_enabled()) {
-        KVMState *s = CPU(cpu)->kvm_state;
+        KVMState *s = kvm_vcpu_state(CPU(cpu));
         uint32_t eax_0 = kvm_arch_get_supported_cpuid(s, 0x14, 0, R_EAX);
         uint32_t ebx_0 = kvm_arch_get_supported_cpuid(s, 0x14, 0, R_EBX);
         uint32_t ecx_0 = kvm_arch_get_supported_cpuid(s, 0x14, 0, R_ECX);