Commit d2bacadc authored by Paolo Bonzini's avatar Paolo Bonzini Committed by Greg Kroah-Hartman

KVM: x86: degrade WARN to pr_warn_ratelimited

commit 3f16a5c3 upstream.

This warning can be triggered easily by userspace, so it should certainly not
cause a panic if panic_on_warn is set.

Reported-by: syzbot+c03f30b4f4c46bdf8575@syzkaller.appspotmail.com
Suggested-by: default avatarAlexander Potapenko <glider@google.com>
Acked-by: default avatarAlexander Potapenko <glider@google.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 06157573
......@@ -1547,7 +1547,7 @@ static int set_tsc_khz(struct kvm_vcpu *vcpu, u32 user_tsc_khz, bool scale)
vcpu->arch.tsc_always_catchup = 1;
return 0;
} else {
WARN(1, "user requested TSC rate below hardware speed\n");
pr_warn_ratelimited("user requested TSC rate below hardware speed\n");
return -1;
}
}
......@@ -1557,8 +1557,8 @@ static int set_tsc_khz(struct kvm_vcpu *vcpu, u32 user_tsc_khz, bool scale)
user_tsc_khz, tsc_khz);
if (ratio == 0 || ratio >= kvm_max_tsc_scaling_ratio) {
WARN_ONCE(1, "Invalid TSC scaling ratio - virtual-tsc-khz=%u\n",
user_tsc_khz);
pr_warn_ratelimited("Invalid TSC scaling ratio - virtual-tsc-khz=%u\n",
user_tsc_khz);
return -1;
}
......
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