c22bf794bf
The code for obtaining a bootcmd from the host when running until QEMU is currently x86-specific. In fact it can be supported on other architecture. Move it into a common place and update the documentation. Signed-off-by: Simon Glass <simon.glass@canonical.com>
38 lines
807 B
C
38 lines
807 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2025 Canonical Ltd
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* Written by Simon Glass <simon.glass@canonical.com>
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*/
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#include <errno.h>
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#include <event.h>
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#include <qfw.h>
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#if CONFIG_IS_ENABLED(EVENT)
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static int qemu_get_bootcmd(void *ctx, struct event *event)
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{
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struct event_bootcmd *bc = &event->data.bootcmd;
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enum fw_cfg_selector select;
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struct udevice *qfw_dev;
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ulong size;
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if (qfw_get_dev(&qfw_dev))
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return 0;
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if (qfw_locate_file(qfw_dev, "opt/u-boot/bootcmd", &select, &size))
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return 0;
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if (!size)
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return 0;
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/* Check if the command fits in the provided buffer with terminator */
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if (size >= bc->size)
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return -ENOSPC;
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qfw_read_entry(qfw_dev, select, size, bc->bootcmd);
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bc->bootcmd[size] = '\0';
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return 0;
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}
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EVENT_SPY_FULL(EVT_BOOTCMD, qemu_get_bootcmd);
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#endif
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