From: Anthony Liguori <anthony@codemonkey.ws>
To: Gleb Natapov <gleb@redhat.com>
Cc: "Lai Jiangshan" <laijs@cn.fujitsu.com>,
"Jan Kiszka" <jan.kiszka@siemens.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
"Vasilis Liaskovitis" <vasilis.liaskovitis@profitbricks.com>,
"Igor Mammedov" <imammedo@redhat.com>,
"Andreas Färber" <afaerber@suse.de>
Subject: Re: [Qemu-devel] [PATCH 2/7] Convert pc cpu to qdev
Date: Wed, 14 Mar 2012 10:57:15 -0500 [thread overview]
Message-ID: <4F60BFDB.40302@codemonkey.ws> (raw)
In-Reply-To: <20120314155409.GI2304@redhat.com>
On 03/14/2012 10:54 AM, Gleb Natapov wrote:
> On Wed, Mar 14, 2012 at 10:42:50AM -0500, Anthony Liguori wrote:
>>
>> There's still a few places in QEMU that assume that
>> qemu_ram_get_ptr() returns a pointer that's good indefinitely.
>>
>> We also don't have a mechanism to revoke cpu_physical_map()
>> pointers. Maybe the answer is reference counting and relying on
>> being able to eventually release the memory... Of course, then an
>> unplug followed by an immediate plug would be complicated.
>>
> Hmm, Avi assured me that with the memory API rework it should be easy :(
> grep founds nothing about qemu_ram_get_ptr() and cpu_physical_map()
> though. What should I look for?
memory_region_get_ptr() and cpu_memory_physical_map().
Regards,
Anthony Liguori
next prev parent reply other threads:[~2012-03-14 15:57 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-15 23:16 [Qemu-devel] [PATCH 0/7] Add CPU hot-plug to qemu (pc only). v2 Igor Mammedov
2012-02-15 23:16 ` [Qemu-devel] [PATCH 1/7] Introduce a new bus "ICC" to connect APIC Igor Mammedov
2012-02-16 11:25 ` Jan Kiszka
2012-02-16 12:42 ` Anthony Liguori
2012-02-16 12:50 ` Jan Kiszka
2012-02-16 12:59 ` Anthony Liguori
2012-02-16 13:06 ` Jan Kiszka
2012-02-17 17:02 ` Igor Mammedov
2012-02-24 13:05 ` Igor Mammedov
2012-02-24 13:30 ` Andreas Färber
2012-02-24 13:40 ` Paolo Bonzini
2012-02-24 13:47 ` Anthony Liguori
2012-02-24 13:50 ` Paolo Bonzini
2012-02-24 14:44 ` Anthony Liguori
2012-02-15 23:16 ` [Qemu-devel] [PATCH 2/7] Convert pc cpu to qdev Igor Mammedov
2012-02-16 11:27 ` Jan Kiszka
2012-02-16 12:01 ` Jan Kiszka
2012-02-16 12:51 ` Anthony Liguori
2012-02-16 12:54 ` Jan Kiszka
2012-02-16 16:09 ` Anthony Liguori
2012-03-13 9:32 ` Lai Jiangshan
2012-03-13 11:04 ` Andreas Färber
2012-03-14 7:59 ` Lai Jiangshan
2012-03-14 8:37 ` Igor Mammedov
2012-03-14 13:49 ` Vasilis Liaskovitis
2012-03-14 15:23 ` Gleb Natapov
2012-03-14 15:32 ` Anthony Liguori
2012-03-14 15:35 ` Gleb Natapov
2012-03-14 15:42 ` Anthony Liguori
2012-03-14 15:54 ` Gleb Natapov
2012-03-14 15:57 ` Anthony Liguori [this message]
2012-03-14 16:27 ` Gleb Natapov
2012-03-14 19:55 ` Vasilis Liaskovitis
2012-03-15 12:07 ` Gleb Natapov
2012-02-16 12:45 ` Anthony Liguori
2012-02-16 16:09 ` Andreas Färber
2012-02-17 17:16 ` Igor Mammedov
2012-02-17 18:07 ` Andreas Färber
2012-02-15 23:16 ` [Qemu-devel] [PATCH 3/7] cleanup: get rid of pc_new_cpu Igor Mammedov
2012-02-15 23:16 ` [Qemu-devel] [PATCH 4/7] cleanup: remove redundant pc_cpu_reset Igor Mammedov
2012-02-16 11:32 ` Jan Kiszka
2012-02-15 23:16 ` [Qemu-devel] [PATCH 5/7] Set default 'model' property if it wasn't specified yet Igor Mammedov
2012-02-16 11:36 ` Jan Kiszka
2012-02-15 23:16 ` [Qemu-devel] [PATCH 6/7] Prepare ACPI infrastructure for cpu hot-plug in acpi_piix4 Igor Mammedov
2012-02-16 11:41 ` Jan Kiszka
2012-02-15 23:16 ` [Qemu-devel] [PATCH 7/7] Implement cpu hot-add using device_add monitor command Igor Mammedov
2012-02-15 23:35 ` Anthony Liguori
2012-02-16 9:33 ` Igor Mammedov
2012-02-16 15:52 ` Andreas Färber
2012-02-16 10:16 ` Jan Kiszka
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