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Re: [PATCH v3 11/20] nubus-device: add romfile property for loading decl
From: |
Philippe Mathieu-Daudé |
Subject: |
Re: [PATCH v3 11/20] nubus-device: add romfile property for loading declaration ROMs |
Date: |
Thu, 16 Sep 2021 13:05:41 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 |
On 9/16/21 12:05 PM, 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 | 6 ++++++
> 2 files changed, 48 insertions(+), 1 deletion(-)
> @@ -38,10 +43,46 @@ static void nubus_device_realize(DeviceState *dev, Error
> **errp)
> memory_region_add_subregion(&nubus->slot_io, slot_offset,
> &nd->slot_mem);
> g_free(name);
> +
> + /* Declaration ROM */
> + if (nd->romfile != NULL) {
> + path = qemu_find_file(QEMU_FILE_TYPE_BIOS, nd->romfile);
> + if (path == NULL) {
> + path = g_strdup(nd->romfile);
> + }
> +
> + size = get_image_size(path);
> + if (size < 0) {
> + error_setg(errp, "failed to find romfile \"%s\"", nd->romfile);
> + g_free(path);
> + return;
> + } else if (size == 0) {
> + error_setg(errp, "romfile \"%s\" is empty", nd->romfile);
> + g_free(path);
> + return;
> + } else if (size > NUBUS_DECL_ROM_MAX_SIZE) {
> + error_setg(errp, "romfile \"%s\" too large (maximum size 128K)",
> + nd->romfile);
> + g_free(path);
> + return;
> + }
> +
> + name = g_strdup_printf("nubus-slot-%x-declaration-rom", nd->slot);
> + memory_region_init_rom(&nd->decl_rom, OBJECT(dev), name, size,
> + &error_fatal);
> + ret = load_image_mr(path, &nd->decl_rom);
load_image_mr() already calls get_image_size(), rom_add_file() and
qemu_find_file(). *But* it doesn't takes and Error handle, and report
error using fprintf()... So unfortunately rom_add*() functions are
kinda outdated and you are doing the right thing to propagate detailled
errors. Therefore:
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> + g_free(path);
> + if (ret < 0) {
> + warn_report("nubus-device: could not load prom '%s'",
> nd->romfile);
> + }
> + memory_region_add_subregion(&nd->slot_mem, NUBUS_SLOT_SIZE - size,
> + &nd->decl_rom);
> + }
> }
- Re: [PATCH v3 04/20] nubus: use bitmap to manage available slots, (continued)
- [PATCH v3 03/20] nubus-device: add device slot parameter, Mark Cave-Ayland, 2021/09/16
- [PATCH v3 05/20] nubus: move slot bitmap checks from NubusDevice realize() to BusClass check_address(), Mark Cave-Ayland, 2021/09/16
- [PATCH v3 06/20] nubus: implement BusClass get_dev_path(), Mark Cave-Ayland, 2021/09/16
- [PATCH v3 07/20] nubus: add trace-events for empty slot accesses, Mark Cave-Ayland, 2021/09/16
- [PATCH v3 09/20] macfb: don't register declaration ROM, Mark Cave-Ayland, 2021/09/16
- [PATCH v3 08/20] nubus: generate bus error when attempting to access empty slots, Mark Cave-Ayland, 2021/09/16
- [PATCH v3 10/20] nubus-device: remove nubus_register_rom() and nubus_register_format_block(), Mark Cave-Ayland, 2021/09/16
- [PATCH v3 11/20] nubus-device: add romfile property for loading declaration ROMs, Mark Cave-Ayland, 2021/09/16
- Re: [PATCH v3 11/20] nubus-device: add romfile property for loading declaration ROMs,
Philippe Mathieu-Daudé <=
[PATCH v3 12/20] nubus: move nubus to its own 32-bit address space, Mark Cave-Ayland, 2021/09/16
[PATCH v3 13/20] nubus-bridge: introduce separate NubusBridge structure, Mark Cave-Ayland, 2021/09/16
[PATCH v3 14/20] mac-nubus-bridge: rename MacNubusState to MacNubusBridge, Mark Cave-Ayland, 2021/09/16
[PATCH v3 15/20] nubus: move NubusBus from mac-nubus-bridge to nubus-bridge, Mark Cave-Ayland, 2021/09/16