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Re: [Qemu-devel] [RFC PATCH qemu] exec: Destroy dispatch immediately
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [RFC PATCH qemu] exec: Destroy dispatch immediately |
Date: |
Fri, 25 Aug 2017 11:57:26 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 |
On 25/08/2017 11:22, Peter Maydell wrote:
> On 25 August 2017 at 09:53, Paolo Bonzini <address@hidden> wrote:
>> The solution is to: 1) share the FlatView structures if they refer to
>> the same root memory region; 2) have one AddressSpaceDispatch per
>> FlatView instead of one per AddressSpace, so that FlatView reference
>> counting takes care of clearing the AddressSpaceDispatch too. Neither
>> is particularly hard.
> If we did this we could get rid of address_space_init_shareable(),
> right? (It's a bit of a cheesy hack aimed at avoiding having duplicate
> address space structures for the same root memory region, but if
> the underlying code is better at not duplicating all the data
> structures unless necessary then the benefit of having the
> separate API goes away I think.)
Yes, indeed.
Paolo
- [Qemu-devel] Memory use with >100 virtio devices, Alexey Kardashevskiy, 2017/08/18
- Re: [Qemu-devel] Memory use with >100 virtio devices, Stefan Hajnoczi, 2017/08/18
- Re: [Qemu-devel] Memory use with >100 virtio devices, David Gibson, 2017/08/21
- Re: [Qemu-devel] Memory use with >100 virtio devices, Alexey Kardashevskiy, 2017/08/21
- Re: [Qemu-devel] Memory use with >100 virtio devices, Alexey Kardashevskiy, 2017/08/24
- Re: [Qemu-devel] Memory use with >100 virtio devices, David Gibson, 2017/08/24
- [Qemu-devel] [RFC PATCH qemu] exec: Destroy dispatch immediately, Alexey Kardashevskiy, 2017/08/25
- Re: [Qemu-devel] [RFC PATCH qemu] exec: Destroy dispatch immediately, Paolo Bonzini, 2017/08/25
- Re: [Qemu-devel] [RFC PATCH qemu] exec: Destroy dispatch immediately, Peter Maydell, 2017/08/25
- Re: [Qemu-devel] [RFC PATCH qemu] exec: Destroy dispatch immediately,
Paolo Bonzini <=
- Re: [Qemu-devel] [RFC PATCH qemu] exec: Destroy dispatch immediately, David Gibson, 2017/08/25
- Re: [Qemu-devel] [RFC PATCH qemu] exec: Destroy dispatch immediately, Peter Maydell, 2017/08/25
- Re: [Qemu-devel] [RFC PATCH qemu] exec: Destroy dispatch immediately, Paolo Bonzini, 2017/08/25
- Re: [Qemu-devel] [RFC PATCH qemu] exec: Destroy dispatch immediately, Alexey Kardashevskiy, 2017/08/29
- Re: [Qemu-devel] [RFC PATCH qemu] exec: Destroy dispatch immediately, Paolo Bonzini, 2017/08/25
- Re: [Qemu-devel] [RFC PATCH qemu] exec: Destroy dispatch immediately, Paolo Bonzini, 2017/08/25
- Re: [Qemu-devel] [RFC PATCH qemu] exec: Destroy dispatch immediately, Alexey Kardashevskiy, 2017/08/25
- Re: [Qemu-devel] [RFC PATCH qemu] exec: Destroy dispatch immediately, Paolo Bonzini, 2017/08/25
- Re: [Qemu-devel] Memory use with >100 virtio devices, Paolo Bonzini, 2017/08/25