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| author | Rusty Russell <rusty@rustcorp.com.au> | 2007-08-01 10:48:02 +1000 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2007-10-13 10:18:22 +0200 |
| commit | f02424785ab83bab8283ad33044284f749c08db8 (patch) | |
| tree | 020d73469f801e33012702c58233e776381d3008 /drivers/kvm/kvm.h | |
| parent | 33830b4f5bdf2bc21d0c10d38beffdce8edcded7 (diff) | |
| download | op-kernel-dev-f02424785ab83bab8283ad33044284f749c08db8.zip op-kernel-dev-f02424785ab83bab8283ad33044284f749c08db8.tar.gz | |
KVM: Add and use pr_unimpl for standard formatting of unimplemented features
All guest-invokable printks should be ratelimited to prevent malicious
guests from flooding logs. This is a start.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/kvm.h')
| -rw-r--r-- | drivers/kvm/kvm.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h index cfda3ab..6d25826 100644 --- a/drivers/kvm/kvm.h +++ b/drivers/kvm/kvm.h @@ -474,6 +474,14 @@ struct kvm_arch_ops { extern struct kvm_arch_ops *kvm_arch_ops; +/* The guest did something we don't support. */ +#define pr_unimpl(vcpu, fmt, ...) \ + do { \ + if (printk_ratelimit()) \ + printk(KERN_ERR "kvm: %i: cpu%i " fmt, \ + current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \ + } while(0) + #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt) #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt) |
