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From: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [Question] memory: AddressSpace backed by single IO MemoryRegion
Date: Mon, 16 Sep 2013 17:48:24 +0300	[thread overview]
Message-ID: <1379342904.17705.69.camel@localhost.localdomain> (raw)

Hi all,

I have an AddressSpace backed by a single MemoryRegion which is
initiated using memory_region_init_io (has ops).
Once I enable it, I get an assertion:
    exec.c:806: register_subpage: Assertion `existing->mr->subpage || existing->mr == &io_mem_unassigned' failed.


Here is the pseudo-code:
    memory_region_init_io(my_reg, owner, my_ops, my_obj, "my region", INT64_MAX);
    memory_region_set_enabled(my_reg, false);
    address_space_init(my_as, my_reg, name);
    memory_region_set_enabled(my_reg, true);
Receives:
    exec.c:806: register_subpage: Assertion `existing->mr->subpage || existing->mr == &io_mem_unassigned' failed.

Any idea why? Any suggestion would be appreciated.
Thanks,
Marcel

             reply	other threads:[~2013-09-16 14:48 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-16 14:48 Marcel Apfelbaum [this message]
2013-09-16 14:52 ` [Qemu-devel] [Question] memory: AddressSpace backed by single IO MemoryRegion Paolo Bonzini
2013-09-16 15:27   ` Marcel Apfelbaum
2013-09-16 17:11   ` Marcel Apfelbaum
2013-09-16 17:18     ` Paolo Bonzini
2013-09-16 17:26       ` Marcel Apfelbaum
2013-09-17  8:29       ` Peter Maydell
2013-09-18 15:43         ` Paolo Bonzini

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