Re: [PATCH] silence kernel messages that can be triggered by a guest

[Marcelo Tosatti]

On Wed, Jul 08, 2009 at 11:26:54AM +0300, Gleb Natapov wrote:
 Some Linux versions (f8) try to read EOI register that is write only.
 
 Signed-off-by: Gleb Natapov g...@redhat.com
 diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
 index ccafe0d..6b5dad4 100644
 --- a/arch/x86/kvm/lapic.c
 +++ b/arch/x86/kvm/lapic.c
 @@ -590,14 +590,14 @@ static int apic_reg_read(struct kvm_lapic *apic, u32 
 offset, int len,
   static const u64 rmask = 0x43ff01ffe70cULL;
  
   if ((alignment + len)  4) {
 - printk(KERN_ERR KVM_APIC_READ: alignment error %x %d\n,
 - offset, len);
 + apic_debug(KVM_APIC_READ: alignment error %x %d\n,
 +offset, len);
   return 1;
   }
  
   if (offset  0x3f0 || !(rmask  (1ULL  (offset  4 {
 - printk(KERN_ERR KVM_APIC_READ: read reserved register %x\n,
 - offset);
 + apic_debug(KVM_APIC_READ: read reserved register %x\n,
 +offset);
   return 1;
   }
  
 --
   Gleb.

Applied, thanks.

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[PATCH] silence kernel messages that can be triggered by a guest

[Gleb Natapov]

Some Linux versions (f8) try to read EOI register that is write only.

Signed-off-by: Gleb Natapov g...@redhat.com
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index ccafe0d..6b5dad4 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -590,14 +590,14 @@ static int apic_reg_read(struct kvm_lapic *apic, u32 
offset, int len,
static const u64 rmask = 0x43ff01ffe70cULL;
 
if ((alignment + len)  4) {
-   printk(KERN_ERR KVM_APIC_READ: alignment error %x %d\n,
-   offset, len);
+   apic_debug(KVM_APIC_READ: alignment error %x %d\n,
+  offset, len);
return 1;
}
 
if (offset  0x3f0 || !(rmask  (1ULL  (offset  4 {
-   printk(KERN_ERR KVM_APIC_READ: read reserved register %x\n,
-   offset);
+   apic_debug(KVM_APIC_READ: read reserved register %x\n,
+  offset);
return 1;
}
 
--
Gleb.
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