Re: [Xen-devel] [PATCH] x86/hvm: implement save/restore for posted interrupts

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 29.07.14 at 09:48, <yang.z.zhang@xxxxxxxxx> wrote:
> @@ -1530,6 +1532,14 @@ static void vmx_process_isr(int isr, struct vcpu *v)
>          status |= isr << VMX_GUEST_INTR_STATUS_SVI_OFFSET;
>          __vmwrite(GUEST_INTR_STATUS, status);
>      }
> +    for ( vector = 0; vector < NR_VECTORS; vector++ )
> +        if (vlapic_test_vector(vector, &s->regs->data[APIC_ISR]))
> +            set_bit(vector,  v->arch.hvm_vmx.eoi_exit_bitmap);
> +        
> +    __vmwrite(0x201c, v->arch.hvm_vmx.eoi_exit_bitmap[0]);
> +    __vmwrite(0x201e, v->arch.hvm_vmx.eoi_exit_bitmap[1]);
> +    __vmwrite(0x2020, v->arch.hvm_vmx.eoi_exit_bitmap[2]);
> +    __vmwrite(0x2022, v->arch.hvm_vmx.eoi_exit_bitmap[3]);

But that gets executed always, not just once post-migration.

Jan


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