On Mon, Jun 29, 2009 at 12:42:02PM +0300, Avi Kivity wrote:
> On 06/28/2009 03:15 PM, Gleb Natapov wrote:
>> This patch implements MSR interface to a local apic as defines by x2APIC
>> Intel specification.
>>
>> @@ -269,7 +275,12 @@ int kvm_apic_match_physical_addr(struct kvm_lapic
>> *apic, u16 dest)
>> int kvm_apic_match_logical_addr(struct kvm_lapic *apic, u8 mda)
>> {
>> int result = 0;
>> - u8 logical_id;
>> + u32 logical_id;
>> +
>> + if (apic_x2apic_mode(apic)) {
>> + logical_id = apic_get_reg(apic, APIC_LDR);
>> + return logical_id& (uint16_t)mda;
>> + }
>>
>
> mda is u8, why cast it?
Is mda will be zero extended without any cast at all? I suppose it
should.
--
Gleb.
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