Re: [PATCH v4 7/8] docs/microvm.txt: document the new microvm machine type

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On 25/09/19 07:49, Sergio Lopez wrote:
>>> +serving as a stepping stone
>>> +for future projects aiming at improving boot times, reducing the
>>> +attack surface and slimming down QEMU's footprint.
>>
>> "Microvm also establishes a baseline for benchmarking QEMU and operating
>> systems, since it is optimized for both boot time and footprint".
> 
> Well, I prefer my paragraph, but I'm good with either.

You're right my version sort of missed the point.  What about
s/benchmarking/benchmarking and optimizing/?

>>> +The microvm machine type supports the following devices:
>>> +
>>> + - ISA bus
>>> + - i8259 PIC
>>> + - LAPIC (implicit if using KVM)
>>> + - IOAPIC (defaults to kernel_irqchip_split = true)
>>> + - i8254 PIT
>>
>> Do we need the PIT?  And perhaps the PIC even?
> 
> We need the PIT for non-KVM accel (if present with KVM and
> kernel_irqchip_split = off, it basically becomes a placeholder)

Why?

> and the
> PIC for both the PIT and the ISA serial port.

Can't the ISA serial port work with the IOAPIC?

Paolo

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