mirror of
https://github.com/torvalds/linux.git
synced 2024-12-23 11:21:33 +00:00
KVM: x86: ratelimit and decrease severity for guest-triggered printk
These are mostly related to nested VMX. They needn't have a loglevel as high as KERN_WARN, and mustn't be allowed to pollute the host logs. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
parent
119a9c01a5
commit
bbe41b9508
@ -6726,7 +6726,7 @@ static void nested_vmx_abort(struct kvm_vcpu *vcpu, u32 indicator)
|
||||
{
|
||||
/* TODO: not to reset guest simply here. */
|
||||
kvm_make_request(KVM_REQ_TRIPLE_FAULT, vcpu);
|
||||
pr_warn("kvm: nested vmx abort, indicator %d\n", indicator);
|
||||
pr_debug_ratelimited("kvm: nested vmx abort, indicator %d\n", indicator);
|
||||
}
|
||||
|
||||
static enum hrtimer_restart vmx_preemption_timer_fn(struct hrtimer *timer)
|
||||
@ -9598,7 +9598,7 @@ static int nested_vmx_check_msr_switch(struct kvm_vcpu *vcpu,
|
||||
maxphyaddr = cpuid_maxphyaddr(vcpu);
|
||||
if (!IS_ALIGNED(addr, 16) || addr >> maxphyaddr ||
|
||||
(addr + count * sizeof(struct vmx_msr_entry) - 1) >> maxphyaddr) {
|
||||
pr_warn_ratelimited(
|
||||
pr_debug_ratelimited(
|
||||
"nVMX: invalid MSR switch (0x%lx, %d, %llu, 0x%08llx)",
|
||||
addr_field, maxphyaddr, count, addr);
|
||||
return -EINVAL;
|
||||
@ -9671,13 +9671,13 @@ static u32 nested_vmx_load_msr(struct kvm_vcpu *vcpu, u64 gpa, u32 count)
|
||||
for (i = 0; i < count; i++) {
|
||||
if (kvm_vcpu_read_guest(vcpu, gpa + i * sizeof(e),
|
||||
&e, sizeof(e))) {
|
||||
pr_warn_ratelimited(
|
||||
pr_debug_ratelimited(
|
||||
"%s cannot read MSR entry (%u, 0x%08llx)\n",
|
||||
__func__, i, gpa + i * sizeof(e));
|
||||
goto fail;
|
||||
}
|
||||
if (nested_vmx_load_msr_check(vcpu, &e)) {
|
||||
pr_warn_ratelimited(
|
||||
pr_debug_ratelimited(
|
||||
"%s check failed (%u, 0x%x, 0x%x)\n",
|
||||
__func__, i, e.index, e.reserved);
|
||||
goto fail;
|
||||
@ -9685,7 +9685,7 @@ static u32 nested_vmx_load_msr(struct kvm_vcpu *vcpu, u64 gpa, u32 count)
|
||||
msr.index = e.index;
|
||||
msr.data = e.value;
|
||||
if (kvm_set_msr(vcpu, &msr)) {
|
||||
pr_warn_ratelimited(
|
||||
pr_debug_ratelimited(
|
||||
"%s cannot write MSR (%u, 0x%x, 0x%llx)\n",
|
||||
__func__, i, e.index, e.value);
|
||||
goto fail;
|
||||
@ -9706,13 +9706,13 @@ static int nested_vmx_store_msr(struct kvm_vcpu *vcpu, u64 gpa, u32 count)
|
||||
if (kvm_vcpu_read_guest(vcpu,
|
||||
gpa + i * sizeof(e),
|
||||
&e, 2 * sizeof(u32))) {
|
||||
pr_warn_ratelimited(
|
||||
pr_debug_ratelimited(
|
||||
"%s cannot read MSR entry (%u, 0x%08llx)\n",
|
||||
__func__, i, gpa + i * sizeof(e));
|
||||
return -EINVAL;
|
||||
}
|
||||
if (nested_vmx_store_msr_check(vcpu, &e)) {
|
||||
pr_warn_ratelimited(
|
||||
pr_debug_ratelimited(
|
||||
"%s check failed (%u, 0x%x, 0x%x)\n",
|
||||
__func__, i, e.index, e.reserved);
|
||||
return -EINVAL;
|
||||
@ -9720,7 +9720,7 @@ static int nested_vmx_store_msr(struct kvm_vcpu *vcpu, u64 gpa, u32 count)
|
||||
msr_info.host_initiated = false;
|
||||
msr_info.index = e.index;
|
||||
if (kvm_get_msr(vcpu, &msr_info)) {
|
||||
pr_warn_ratelimited(
|
||||
pr_debug_ratelimited(
|
||||
"%s cannot read MSR (%u, 0x%x)\n",
|
||||
__func__, i, e.index);
|
||||
return -EINVAL;
|
||||
@ -9729,7 +9729,7 @@ static int nested_vmx_store_msr(struct kvm_vcpu *vcpu, u64 gpa, u32 count)
|
||||
gpa + i * sizeof(e) +
|
||||
offsetof(struct vmx_msr_entry, value),
|
||||
&msr_info.data, sizeof(msr_info.data))) {
|
||||
pr_warn_ratelimited(
|
||||
pr_debug_ratelimited(
|
||||
"%s cannot write MSR (%u, 0x%x, 0x%llx)\n",
|
||||
__func__, i, e.index, msr_info.data);
|
||||
return -EINVAL;
|
||||
|
Loading…
Reference in New Issue
Block a user