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From: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
To: "Philippe Mathieu-Daudé" <f4bug@amsat.org>,
	qemu-devel@nongnu.org, laurent@vivier.eu
Subject: Re: [PATCH 11/20] nubus-device: add romfile property for loading declaration ROMs
Date: Wed, 15 Sep 2021 09:16:00 +0100	[thread overview]
Message-ID: <7965292b-75d9-35b1-2518-04a3b10b0412@ilande.co.uk> (raw)
In-Reply-To: <72dd46cf-2d9c-228c-05c7-e4f5d03df191@ilande.co.uk>

On 14/09/2021 21:23, Mark Cave-Ayland wrote:

> On 12/09/2021 18:39, Philippe Mathieu-Daudé wrote:
> 
>> On 9/12/21 9:49 AM, Mark Cave-Ayland wrote:
>>> The declaration ROM is located at the top-most address of the standard slot
>>> space.
>>>
>>> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
>>> ---
>>>   hw/nubus/nubus-device.c  | 43 +++++++++++++++++++++++++++++++++++++++-
>>>   include/hw/nubus/nubus.h |  5 +++++
>>>   2 files changed, 47 insertions(+), 1 deletion(-)
>>
>>> +    /* Declaration ROM */
>>
>>> +        } else if (size > NUBUS_DECL_ROM_MAX_SIZE) {
>>
>> I'd check for >= and define as (64 * KiB).
> 
> That's a good idea - I'll update this for the v2.

And in fact it looks like it is possible to embed multi-function MacOS drivers in the 
declaration ROM so I'll keep the > and increase the maximum size to 128K which should 
give plenty of breathing space for binary drivers.

>>> +            error_setg(errp, "romfile \"%s\" too large (maximum size 64K)",
>>> +                       nd->romfile);
>>> +            g_free(path);
>>> +            return;
>>> +        }
>>
>>> diff --git a/include/hw/nubus/nubus.h b/include/hw/nubus/nubus.h
>>> index 87a97516c7..42f4c9dbb8 100644
>>> --- a/include/hw/nubus/nubus.h
>>> +++ b/include/hw/nubus/nubus.h
>>> @@ -39,12 +39,17 @@ struct NubusBus {
>>>       uint32_t slot_available_mask;
>>>   };
>>> +#define NUBUS_DECL_ROM_MAX_SIZE    0xffff


ATB,

Mark.


  reply	other threads:[~2021-09-15  8:17 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-12  7:48 [PATCH 00/20] nubus: bus, device, bridge, IRQ and address space improvements Mark Cave-Ayland
2021-09-12  7:48 ` [PATCH 01/20] nubus-device: rename slot_nb variable to slot Mark Cave-Ayland
2021-09-12 15:09   ` Philippe Mathieu-Daudé
2021-09-12  7:48 ` [PATCH 02/20] nubus-device: expose separate super slot memory region Mark Cave-Ayland
2021-09-12 15:50   ` Philippe Mathieu-Daudé
2021-09-12 17:20     ` Mark Cave-Ayland
2021-09-12 17:31       ` Philippe Mathieu-Daudé
2021-09-12  7:48 ` [PATCH 03/20] nubus-device: add device slot parameter Mark Cave-Ayland
2021-09-12 15:15   ` Philippe Mathieu-Daudé
2021-09-12 16:43     ` Mark Cave-Ayland
2021-09-12  7:48 ` [PATCH 04/20] nubus: use bitmap to manage available slots Mark Cave-Ayland
2021-09-12 17:48   ` Philippe Mathieu-Daudé
2021-09-14 20:27     ` Mark Cave-Ayland
2021-09-12  7:48 ` [PATCH 05/20] nubus: move slot bitmap checks from NubusDevice realize() to BusClass check_address() Mark Cave-Ayland
2021-09-12  7:49 ` [PATCH 06/20] nubus: implement BusClass get_dev_path() Mark Cave-Ayland
2021-09-12 15:16   ` Philippe Mathieu-Daudé
2021-09-12  7:49 ` [PATCH 07/20] nubus: add trace-events for unassigned slot accesses Mark Cave-Ayland
2021-09-12 15:18   ` Philippe Mathieu-Daudé
2021-09-12 16:45     ` Mark Cave-Ayland
2021-09-12  7:49 ` [PATCH 08/20] nubus: generate bus error when attempting to access empty slots Mark Cave-Ayland
2021-09-12 15:19   ` Philippe Mathieu-Daudé
2021-09-12  7:49 ` [PATCH 09/20] macfb: don't register declaration ROM Mark Cave-Ayland
2021-09-12  7:49 ` [PATCH 10/20] nubus-device: remove nubus_register_rom() and nubus_register_format_block() Mark Cave-Ayland
2021-09-12  7:49 ` [PATCH 11/20] nubus-device: add romfile property for loading declaration ROMs Mark Cave-Ayland
2021-09-12 17:39   ` Philippe Mathieu-Daudé
2021-09-14 20:23     ` Mark Cave-Ayland
2021-09-15  8:16       ` Mark Cave-Ayland [this message]
2021-09-12  7:49 ` [PATCH 12/20] nubus: move nubus to its own 32-bit address space Mark Cave-Ayland
2021-09-12 15:22   ` Philippe Mathieu-Daudé
2021-09-12  7:49 ` [PATCH 13/20] nubus-bridge: introduce separate NubusBridge structure Mark Cave-Ayland
2021-09-12 15:23   ` Philippe Mathieu-Daudé
2021-09-12  7:49 ` [PATCH 14/20] mac-nubus-bridge: rename MacNubusState to MacNubusBridge Mark Cave-Ayland
2021-09-12 15:23   ` Philippe Mathieu-Daudé
2021-09-12  7:49 ` [PATCH 15/20] nubus: move NubusBus from mac-nubus-bridge to nubus-bridge Mark Cave-Ayland
2021-09-12 15:25   ` Philippe Mathieu-Daudé
2021-09-12  7:49 ` [PATCH 16/20] nubus-bridge: embed the NubusBus object directly within nubus-bridge Mark Cave-Ayland
2021-09-12 15:26   ` Philippe Mathieu-Daudé
2021-09-12 17:43   ` Philippe Mathieu-Daudé
2021-09-14 20:26     ` Mark Cave-Ayland
2021-09-12  7:49 ` [PATCH 17/20] nubus-bridge: make slot_available_mask a qdev property Mark Cave-Ayland
2021-09-12  7:49 ` [PATCH 18/20] nubus: add support for slot IRQs Mark Cave-Ayland
2021-09-12 16:00   ` Philippe Mathieu-Daudé
2021-09-12 17:05     ` Mark Cave-Ayland
2021-09-12  7:49 ` [PATCH 19/20] q800: wire up nubus IRQs Mark Cave-Ayland
2021-09-12  7:49 ` [PATCH 20/20] q800: configure nubus available slots for Quadra 800 Mark Cave-Ayland
2021-09-12 15:47 ` [PATCH 00/20] nubus: bus, device, bridge, IRQ and address space improvements Philippe Mathieu-Daudé
2021-09-12 16:56   ` Mark Cave-Ayland

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