This adds a CPUID entry for the paravirtualization feature bitmap. We can do
this unconditionally because the guest requires that both the feature CPUID
entry and the signature CPUID entry exists to enable paravirtualization.
This means that guest will never enable paravirtualization if either userspace
or kernelspace doesn't support paravirtualization.
Signed-off-by: Anthony Liguori <[EMAIL PROTECTED]>
diff --git a/qemu/qemu-kvm.c b/qemu/qemu-kvm.c
index 4843a74..bea871d 100644
--- a/qemu/qemu-kvm.c
+++ b/qemu/qemu-kvm.c
@@ -1113,12 +1113,18 @@ static void do_cpuid_ent(struct kvm_cpuid_entry *e,
uint32_t function,
int kvm_qemu_init_env(CPUState *cenv)
{
struct kvm_cpuid_entry cpuid_ent[100];
+ struct kvm_cpuid_entry *pv_features;
int cpuid_nent = 0;
CPUState copy;
uint32_t i, limit;
copy = *cenv;
+ pv_features = &cpuid_ent[cpuid_nent++];
+ memset(pv_features, 0, sizeof(*pv_features));
+ pv_features->function = 0x40000003;
+ pv_features->eax = 0;
+
copy.regs[R_EAX] = 0;
qemu_kvm_cpuid_on_env(©);
limit = copy.regs[R_EAX];
diff --git a/user/kvmctl.h b/user/kvmctl.h
index 109d81c..74db1ba 100644
--- a/user/kvmctl.h
+++ b/user/kvmctl.h
@@ -10,6 +10,7 @@
#endif
#include <linux/kvm.h>
+#include <linux/kvm_para.h>
#include <stdint.h>
#include <signal.h>
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