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[Qemu-devel] [PATCH] target-i386: Remove assert(kvm_enabled()) from host


From: Eduardo Habkost
Subject: [Qemu-devel] [PATCH] target-i386: Remove assert(kvm_enabled()) from host_x86_cpu_initfn()
Date: Fri, 10 Jun 2016 08:48:33 -0300
User-agent: Mutt/1.6.1 (2016-04-27)

The code will be changed to allow creation of the CPU object and
report kvm_required errors only at realizefn, so we need to make
the instance_init function more flexible.

Signed-off-by: Eduardo Habkost <address@hidden>
---
I am applying this before "Move xcc->kvm_required check to
realize time" to avoid triggering the assert().
---
 target-i386/cpu.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 647cd30..c91902f 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1547,16 +1547,17 @@ static void host_x86_cpu_initfn(Object *obj)
     CPUX86State *env = &cpu->env;
     KVMState *s = kvm_state;
 
-    assert(kvm_enabled());
-
     /* We can't fill the features array here because we don't know yet if
      * "migratable" is true or false.
      */
     cpu->host_features = true;
 
-    env->cpuid_level = kvm_arch_get_supported_cpuid(s, 0x0, 0, R_EAX);
-    env->cpuid_xlevel = kvm_arch_get_supported_cpuid(s, 0x80000000, 0, R_EAX);
-    env->cpuid_xlevel2 = kvm_arch_get_supported_cpuid(s, 0xC0000000, 0, R_EAX);
+    /* If KVM is disabled, cpu_x86_create() will already report an error */
+    if (kvm_enabled()) {
+        env->cpuid_level = kvm_arch_get_supported_cpuid(s, 0x0, 0, R_EAX);
+        env->cpuid_xlevel = kvm_arch_get_supported_cpuid(s, 0x80000000, 0, 
R_EAX);
+        env->cpuid_xlevel2 = kvm_arch_get_supported_cpuid(s, 0xC0000000, 0, 
R_EAX);
+    }
 
     object_property_set_bool(OBJECT(cpu), true, "pmu", &error_abort);
 }
-- 
2.5.5



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