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Re: [Qemu-devel] [RESEND PATCH v8 1/4] apic: map APIC's MMIO region at e


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [RESEND PATCH v8 1/4] apic: map APIC's MMIO region at each CPU's address space
Date: Fri, 26 Jun 2015 11:05:34 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0


On 26/06/2015 11:01, Igor Mammedov wrote:
> > It's used if the userspace LAPIC is.  It's not used together with the
> > kernel LAPIC (accesses really are trapped by the kernel).
>
> Isn't this memory region still handle MSI MMIO in case of kernel LAPIC?
> kvm_apic_mem_write() -> kvm_irqchip_send_msi()

I'm not sure if the MSI MMIO area moves together with the APIC base.  I
think it doesn't.

Paolo



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