[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH] target/i386: kvm: print info when the kernel doesn't support ioc
From: |
Li Qiang |
Subject: |
[PATCH] target/i386: kvm: print info when the kernel doesn't support ioctl(KVM_CAP_GET_MSR_FEATURES) |
Date: |
Fri, 3 Jan 2020 06:32:24 -0800 |
The ioctl(KVM_CAP_GET_MSR_FEATURES) is quite new. In old platform that
doesn't support this ioctl will sometimes make the user confusion. For
example, when we do nested virtualiztion using host-passthrough model
the VM will has quite different cpu feature with the host.
Signed-off-by: Li Qiang <address@hidden>
---
target/i386/kvm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 0b511906e3..9688f7a167 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -1916,6 +1916,8 @@ static int kvm_get_supported_feature_msrs(KVMState *s)
}
if (!kvm_check_extension(s, KVM_CAP_GET_MSR_FEATURES)) {
+ info_report("ioctl(KVM_CAP_GET_MSR_FEATURES) is "
+ "not supported by this kernel.");
return 0;
}
--
2.17.1
- [PATCH] target/i386: kvm: print info when the kernel doesn't support ioctl(KVM_CAP_GET_MSR_FEATURES),
Li Qiang <=