Avi Kivity wrote:
> Zhang, Xiantao wrote:
>> Hi, Avi
>> Please help to apply this patch. It will fix kvm/ia64's
>> networking issue. Thanks
>> Xiantao
>> From fe6e28ce9295acba107438979fe6ead0d24f7e20 Mon Sep 17 00:00:00
>> 2001 From: Xiantao Zhang <xiantao.zhang@xxxxxxxxx>
>> Date: Fri, 22 Aug 2008 17:14:15 +0800
>> Subject: [PATCH] KVM: Qemu: Enable kvm/ia64's network.
>>
>> kvm/ia64's IRQ may >16, but current Qemu can't support it.
>> Here we implment a IRQ map function to solve this issue to
>> enable its networking.
>>
>> Signed-off-by: Anthony Xu <anthony.xu@xxxxxxxxx>
>> Signed-off-by: Xiantao Zhang <xiantao.zhang@xxxxxxxxx> ---
>> qemu/hw/ipf.c | 24 ++++++++++++++++++++++++
>> qemu/hw/pci.c | 9 +++++++++
>> 2 files changed, 33 insertions(+), 0 deletions(-)
>>
>> diff --git a/qemu/hw/ipf.c b/qemu/hw/ipf.c
>> index b11e328..ffa7843 100644
>> --- a/qemu/hw/ipf.c
>> +++ b/qemu/hw/ipf.c
>> @@ -672,3 +672,27 @@ QEMUMachine ipf_machine = {
>> ipf_init_pci,
>> VGA_RAM_SIZE + VGA_RAM_SIZE,
>> };
>> +
>> +#define IOAPIC_NUM_PINS 48
>> +
>> +static int ioapic_irq_count[IOAPIC_NUM_PINS];
>> +
>> +int ioapic_map_irq(int devfn, int irq_num)
>> +{
>> + int irq, dev;
>> + dev = devfn >> 3;
>> + irq = ((((dev << 2) + (dev >> 3) + irq_num) & 31) + 16); +
>> return irq; +}
>> +
>> +void ioapic_set_irq(void *opaque, int vector, int level) +{
>> + if( level )
>>
>
> if (level)
>
>> + ioapic_irq_count[vector] += 1;
>> + else
>> + ioapic_irq_count[vector] -= 1;
>> +
>> + if (kvm_enabled())
>> + if (kvm_set_irq(vector, ioapic_irq_count[vector] == 0)) +
>> return; +}
>>
>
> Please move this to pci.c. This can be made to work for x86 too.
So, we should change X86 bios's dsdt also ?
Thanks
Xiantao
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