From: Paolo Bonzini <pbonzini@redhat.com>
To: Igor Mammedov <imammedo@redhat.com>
Cc: qemu-devel@nongnu.org, "Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: [Qemu-devel] [RFC v2 3/6] memory: support unmapping of MemoryRegion mapped into HVA parent
Date: Wed, 17 Jun 2015 10:14:00 +0200 [thread overview]
Message-ID: <55812C48.50607@redhat.com> (raw)
In-Reply-To: <20150609120855.7e19c588@nial.brq.redhat.com>
On 09/06/2015 12:08, Igor Mammedov wrote:
>
> 3. until #2 is done we can't allow to map another memory region in
> current flatview at the same range, hence need to keep list of
> still active HVA ranges so we could check at memory_region_add_subregion()
> time that new mapping is allowed. => adding "Error **errp"
> to memory_region_add_subregion() for reporting fail.
No, we cannot do that. memory_region_add_subregion cannot fail. The
RCU mechanism is transparent.
Paolo
next prev parent reply other threads:[~2015-06-17 8:14 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 [this message]
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
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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