From: Peter Maydell <peter.maydell@linaro.org>
To: Avi Kivity <avi@redhat.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: [Qemu-devel] [RFC v2 01/20] Hierarchical memory region API
Date: Tue, 28 Jun 2011 14:25:54 +0100 [thread overview]
Message-ID: <BANLkTi=vABOQPPDcXnxHQCzKwerXLQGi-A@mail.gmail.com> (raw)
In-Reply-To: <4E09C482.6050508@redhat.com>
On 28 June 2011 13:09, Avi Kivity <avi@redhat.com> wrote:
> Okay, let's make t_p_a_t max(bus size in system).
If you want a type for that, can't you give it a sensible (ie
different) name? target_phys_addr_t is pretty clearly "the type
of a physical address for this target" and having it actually
be something else is just going to be confusing.
> Do we have 32-bit targets
> that don't support pci (I guess, pc-isa with cpu < ppro?). Do we want to
> support a 32-bit variant of pci? It certainly existed at some point.
As a thought experiment, you could take an existing 32 bit
target and define a new board model that happens to have eg a
new pci controller on it. It doesn't seem right that that
should cause the system's idea of this type width to change,
it's just a new device model and board. So if you have this
type I think it ought to be max(bus size of widest bus qemu
supports).
-- PMM
next prev parent reply other threads:[~2011-06-28 13:26 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-27 13:21 [Qemu-devel] [RFC v2 00/20] Memory API Avi Kivity
2011-06-27 13:21 ` [Qemu-devel] [RFC v2 01/20] Hierarchical memory region API Avi Kivity
2011-06-28 10:03 ` Michael S. Tsirkin
2011-06-28 10:28 ` Jan Kiszka
2011-06-28 11:53 ` Avi Kivity
2011-06-28 12:07 ` Jan Kiszka
2011-06-28 12:09 ` Avi Kivity
2011-06-28 12:46 ` Jan Kiszka
2011-06-28 12:53 ` Avi Kivity
2011-06-28 13:25 ` Peter Maydell [this message]
2011-06-28 13:36 ` Avi Kivity
2011-06-28 16:27 ` Olivier Galibert
2011-06-28 11:51 ` Avi Kivity
2011-06-27 13:21 ` [Qemu-devel] [RFC v2 02/20] memory: implement dirty tracking Avi Kivity
2011-06-27 13:21 ` [Qemu-devel] [RFC v2 03/20] memory: merge adjacent segments of a single memory region Avi Kivity
2011-06-27 13:56 ` Jan Kiszka
2011-06-27 14:11 ` Avi Kivity
2011-06-27 13:21 ` [Qemu-devel] [RFC v2 04/20] Internal interfaces for memory API Avi Kivity
2011-06-27 13:21 ` [Qemu-devel] [RFC v2 05/20] exec.c: initialize memory map Avi Kivity
2011-06-27 13:21 ` [Qemu-devel] [RFC v2 06/20] pc: grab system_memory Avi Kivity
2011-06-27 13:21 ` [Qemu-devel] [RFC v2 07/20] pc: convert pc_memory_init() to memory API Avi Kivity
2011-06-27 13:21 ` [Qemu-devel] [RFC v2 08/20] pc: move global memory map out of pc_init1() and into its callers Avi Kivity
2011-06-27 13:21 ` [Qemu-devel] [RFC v2 09/20] pci: pass address space to pci bus when created Avi Kivity
2011-06-27 13:21 ` [Qemu-devel] [RFC v2 10/20] pci: add MemoryRegion based BAR management API Avi Kivity
2011-06-27 13:21 ` [Qemu-devel] [RFC v2 11/20] sysbus: add MemoryRegion based memory " Avi Kivity
2011-06-27 13:21 ` [Qemu-devel] [RFC v2 12/20] usb-ohci: convert to MemoryRegion Avi Kivity
2011-06-27 13:22 ` [Qemu-devel] [RFC v2 13/20] pci: add API to get a BAR's mapped address Avi Kivity
2011-06-27 13:22 ` [Qemu-devel] [RFC v2 14/20] vmsvga: don't remember pci BAR address in callback any more Avi Kivity
2011-06-27 13:22 ` [Qemu-devel] [RFC v2 15/20] vga: convert vga and its derivatives to the memory API Avi Kivity
2011-06-27 13:22 ` [Qemu-devel] [RFC v2 16/20] cirrus: simplify mmio BAR access functions Avi Kivity
2011-06-27 13:22 ` [Qemu-devel] [RFC v2 17/20] cirrus: simplify bitblt " Avi Kivity
2011-06-27 13:22 ` [Qemu-devel] [RFC v2 18/20] cirrus: simplify vga window mmio " Avi Kivity
2011-06-27 13:22 ` [Qemu-devel] [RFC v2 19/20] vga: " Avi Kivity
2011-06-27 13:22 ` [Qemu-devel] [RFC v2 20/20] cirrus: simplify linear framebuffer " Avi Kivity
2011-06-27 15:13 ` [Qemu-devel] [RFC v2 00/20] Memory API Avi Kivity
2011-06-27 15:52 ` Michael S. Tsirkin
2011-06-27 15:54 ` Avi Kivity
2011-06-27 15:59 ` Michael S. Tsirkin
2011-06-27 16:10 ` Avi Kivity
2011-06-27 20:28 ` Anthony Liguori
2011-06-27 15:37 ` Anthony Liguori
2011-06-27 15:44 ` Avi Kivity
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