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Re: [Qemu-devel] [PATCH] kvm: fix Win2k boot without KVM


From: Jan Kiszka
Subject: Re: [Qemu-devel] [PATCH] kvm: fix Win2k boot without KVM
Date: Sat, 03 Nov 2012 19:51:42 +0100
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On 2012-11-03 19:49, Blue Swirl wrote:
> Ignore accesses to VAPIC when kvmvapic is not enabled.
> 
> Cc: Jan Kiszka <address@hidden>
> Signed-off-by: Blue Swirl <address@hidden>
> ---
>  hw/kvmvapic.c |    7 ++++---
>  1 files changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/hw/kvmvapic.c b/hw/kvmvapic.c
> index dc111ee..a97d532 100644
> --- a/hw/kvmvapic.c
> +++ b/hw/kvmvapic.c
> @@ -612,6 +612,9 @@ static void vapic_write(void *opaque, hwaddr addr, 
> uint64_t data,
>      hwaddr rom_paddr;
>      VAPICROMState *s = opaque;
>  
> +    if (!kvm_irqchip_in_kernel()) {
> +        return;
> +    }
>      cpu_synchronize_state(env);
>  
>      /*
> @@ -665,9 +668,7 @@ static void vapic_write(void *opaque, hwaddr addr, 
> uint64_t data,
>          break;
>      default:
>      case 4:
> -        if (!kvm_irqchip_in_kernel()) {
> -            apic_poll_irq(env->apic_state);
> -        }
> +        apic_poll_irq(env->apic_state);
>          break;
>      }
>  }
> 

NACK, I'm already debugging the true reason (related to code patching).

Jan

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