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test_firmware: add support for firmware_request_platform
Add support for testing firmware_request_platform through a new trigger_request_platform trigger. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Link: https://lore.kernel.org/r/20200115163554.101315-6-hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -24,6 +24,7 @@
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#include <linux/delay.h>
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#include <linux/kthread.h>
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#include <linux/vmalloc.h>
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#include <linux/efi_embedded_fw.h>
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#define TEST_FIRMWARE_NAME "test-firmware.bin"
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#define TEST_FIRMWARE_NUM_REQS 4
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@ -507,6 +508,57 @@ out:
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}
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static DEVICE_ATTR_WO(trigger_request);
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#ifdef CONFIG_EFI_EMBEDDED_FIRMWARE
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static ssize_t trigger_request_platform_store(struct device *dev,
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struct device_attribute *attr,
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const char *buf, size_t count)
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{
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static const u8 test_data[] = {
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0x55, 0xaa, 0x55, 0xaa, 0x01, 0x02, 0x03, 0x04,
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0x55, 0xaa, 0x55, 0xaa, 0x05, 0x06, 0x07, 0x08,
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0x55, 0xaa, 0x55, 0xaa, 0x10, 0x20, 0x30, 0x40,
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0x55, 0xaa, 0x55, 0xaa, 0x50, 0x60, 0x70, 0x80
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};
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struct efi_embedded_fw efi_embedded_fw;
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const struct firmware *firmware = NULL;
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char *name;
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int rc;
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name = kstrndup(buf, count, GFP_KERNEL);
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if (!name)
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return -ENOSPC;
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pr_info("inserting test platform fw '%s'\n", name);
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efi_embedded_fw.name = name;
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efi_embedded_fw.data = (void *)test_data;
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efi_embedded_fw.length = sizeof(test_data);
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list_add(&efi_embedded_fw.list, &efi_embedded_fw_list);
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pr_info("loading '%s'\n", name);
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rc = firmware_request_platform(&firmware, name, dev);
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if (rc) {
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pr_info("load of '%s' failed: %d\n", name, rc);
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goto out;
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}
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if (firmware->size != sizeof(test_data) ||
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memcmp(firmware->data, test_data, sizeof(test_data)) != 0) {
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pr_info("firmware contents mismatch for '%s'\n", name);
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rc = -EINVAL;
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goto out;
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}
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pr_info("loaded: %zu\n", firmware->size);
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rc = count;
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out:
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release_firmware(firmware);
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list_del(&efi_embedded_fw.list);
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kfree(name);
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return rc;
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}
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static DEVICE_ATTR_WO(trigger_request_platform);
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#endif
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static DECLARE_COMPLETION(async_fw_done);
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static void trigger_async_request_cb(const struct firmware *fw, void *context)
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@ -903,6 +955,9 @@ static struct attribute *test_dev_attrs[] = {
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TEST_FW_DEV_ATTR(trigger_request),
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TEST_FW_DEV_ATTR(trigger_async_request),
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TEST_FW_DEV_ATTR(trigger_custom_fallback),
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#ifdef CONFIG_EFI_EMBEDDED_FIRMWARE
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TEST_FW_DEV_ATTR(trigger_request_platform),
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#endif
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/* These use the config and can use the test_result */
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TEST_FW_DEV_ATTR(trigger_batched_requests),
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