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Re: [Qemu-devel] [PATCH 4/4] hw/i386: Introduce the microvm machine type
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [PATCH 4/4] hw/i386: Introduce the microvm machine type |
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Date: |
Sat, 29 Jun 2019 00:17:22 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 |
On 28/06/19 16:06, Michael S. Tsirkin wrote:
>> + assert(kvm_irqchip_in_kernel());
> Hmm - irqchip in kernel actually increases the attack surface,
> does it not? Or at least, the severity of the attacks.
Yeah, we should at least support split irqchip. But, irqchip completely
in userspace is slow when it is not broken, and it does not support
APICv. So it's not really feasible.
Paolo
Re: [Qemu-devel] [PATCH 4/4] hw/i386: Introduce the microvm machine type, Eduardo Habkost, 2019/06/28
[Qemu-devel] [PATCH 3/4] hw/i386: Add an Intel MPTable generator, Sergio Lopez, 2019/06/28