From: Paolo Bonzini <pbonzini@redhat.com>
To: Igor Mammedov <imammedo@redhat.com>
Cc: qemu-devel@nongnu.org, mst@redhat.com
Subject: Re: [Qemu-devel] [RFC v2 4/6] hostmem: return recreated MemoryRegion if current can't be reused
Date: Mon, 08 Jun 2015 18:28:08 +0200 [thread overview]
Message-ID: <5575C298.4050109@redhat.com> (raw)
In-Reply-To: <20150608182500.32c17898@nial.brq.redhat.com>
On 08/06/2015 18:25, Igor Mammedov wrote:
>
>> > Can we just outlaw this, forcing each memory backend to be
>> > used only once?
> to outlaw it gracefully without asserting QEMU during hotplug
> user should be able to detect that it's outlawed i.e. use
> memory_region_is_hva_mapped(), but yes we can.
We can also add a ->detach method to HostMemoryBackend, and forbid
get_memory after it has been invoked.
Paolo
next prev parent reply other threads:[~2015-06-08 16:28 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-08 15:19 [Qemu-devel] [RFC v2 0/6] Fix QEMU crash during memory hotplug with vhost=on Igor Mammedov
2015-06-08 15:19 ` [Qemu-devel] [RFC v2 1/6] memory: get rid of memory_region_destructor_ram_from_ptr() Igor Mammedov
2015-06-08 15:23 ` Paolo Bonzini
2015-06-08 16:08 ` Igor Mammedov
2015-06-08 16:09 ` Paolo Bonzini
2015-06-08 16:26 ` Igor Mammedov
2015-06-08 15:19 ` [Qemu-devel] [RFC v2 2/6] memory: introduce MemoryRegion container with reserved HVA range Igor Mammedov
2015-06-08 15:19 ` [Qemu-devel] [RFC v2 3/6] memory: support unmapping of MemoryRegion mapped into HVA parent Igor Mammedov
2015-06-08 15:26 ` Paolo Bonzini
2015-06-08 15:32 ` Paolo Bonzini
2015-06-08 16:13 ` Igor Mammedov
2015-06-08 16:25 ` Michael S. Tsirkin
2015-06-08 17:06 ` Paolo Bonzini
2015-06-09 10:08 ` Igor Mammedov
2015-06-17 8:14 ` Paolo Bonzini
2015-06-17 15:04 ` Igor Mammedov
2015-06-17 15:10 ` Michael S. Tsirkin
2015-06-17 16:15 ` Paolo Bonzini
2015-06-17 16:30 ` Michael S. Tsirkin
2015-06-08 15:19 ` [Qemu-devel] [RFC v2 4/6] hostmem: return recreated MemoryRegion if current can't be reused Igor Mammedov
2015-06-08 15:30 ` Paolo Bonzini
2015-06-08 16:25 ` Igor Mammedov
2015-06-08 16:28 ` Paolo Bonzini [this message]
2015-06-08 15:19 ` [Qemu-devel] [RFC v2 5/6] pc: reserve hotpluggable memory range with memory_region_init_hva_range() Igor Mammedov
2015-06-08 15:19 ` [Qemu-devel] [RFC v2 6/6] pc: fix QEMU crashing when more than ~50 memory hotplugged Igor Mammedov
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