From: Paolo Bonzini <pbonzini@redhat.com>
To: Jan Kiszka <jan.kiszka@siemens.com>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH for-2.4 0/8] memory: enable unlocked PIO/MMIO in KVM
Date: Wed, 18 Mar 2015 15:52:30 +0100 [thread overview]
Message-ID: <5509912E.7020007@redhat.com> (raw)
In-Reply-To: <55098CA4.8060203@siemens.com>
On 18/03/2015 15:33, Jan Kiszka wrote:
> Just in time: I'm planning to rebase our queue soon, specifically to
> benefit from RCU support. Will let you know if it works on top of this
> series.
Great. FWIW, this is the most similar version to the one we played with
in 2013.
I have an alternative one that keeps the single address_space_rw API,
and checks if you have the iothread mutex using thread-local storage.
The reason for that is that I would have to introduce
address_space_map/unmap_unlocked too, which I didn't really like. Also,
in the not-so-long term we want the same code (e.g. SCSI layer) to run
in both locked and unlocked mode.
What do you think?
Paolo
next prev parent reply other threads:[~2015-03-18 14:52 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-18 13:21 [Qemu-devel] [PATCH for-2.4 0/8] memory: enable unlocked PIO/MMIO in KVM Paolo Bonzini
2015-03-18 13:21 ` [Qemu-devel] [PATCH 1/8] memory: Add global-locking property to memory regions Paolo Bonzini
2015-03-18 13:21 ` [Qemu-devel] [PATCH 2/8] exec: move rcu_read_lock/unlock to address_space_translate callers Paolo Bonzini
2015-03-19 13:27 ` Jan Kiszka
2015-03-19 14:55 ` Jan Kiszka
2015-03-19 16:23 ` Paolo Bonzini
2015-03-18 13:21 ` [Qemu-devel] [PATCH 3/8] memory: Provide address_space_rw_unlocked Paolo Bonzini
2015-03-18 13:21 ` [Qemu-devel] [PATCH 4/8] kvm: First step to push iothread lock out of inner run loop Paolo Bonzini
2015-03-18 13:21 ` [Qemu-devel] [PATCH 5/8] kvm: Switch to unlocked PIO Paolo Bonzini
2015-03-18 13:21 ` [Qemu-devel] [PATCH 6/8] exec: mark unassigned_io_ops as unlocked Paolo Bonzini
2015-03-18 14:33 ` Jan Kiszka
2015-03-18 14:53 ` Paolo Bonzini
2015-03-18 13:21 ` [Qemu-devel] [PATCH 7/8] acpi: mark PMTIMER " Paolo Bonzini
2015-03-18 13:21 ` [Qemu-devel] [PATCH 8/8] kvm: Switch to unlocked MMIO Paolo Bonzini
2015-03-18 14:33 ` [Qemu-devel] [PATCH for-2.4 0/8] memory: enable unlocked PIO/MMIO in KVM Jan Kiszka
2015-03-18 14:52 ` Paolo Bonzini [this message]
2015-03-18 15:04 ` Jan Kiszka
2015-03-19 8:52 ` Paolo Bonzini
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