[U-Boot] [PATCH v3 00/18] efi_loader: manage protocols in a linked list (v3)

[U-Boot] [PATCH v3 00/18] efi_loader: manage protocols in a linked list (v3)

[Heinrich Schuchardt]

Up to now the protocols of an EFI handle where contained in an
array of fixed size. With the patch series the protocols are
managed in a linked list. This both saves memory and gives
more flexibility.

The LocateDevicePath boot service is implemented according
to the UEFI specification.

A unit test for the LocateDevicePath boot service and the
device path to text protocol are added.

Some bug fixes are provided.

v3
	Remove patch
	efi_loader: efi_bootmgr: do not make hidden assignments
	(A patch to add device path printing in printf() is
	pending.)
	Resubmit
	efi_loader: helloworld.c: remove superfluous include
v2
	Enhance the helloworld example to check if the image
	handle is passed corectly. Adjust the related py
	test.

	Use a helper function to initialize EFI objects.

	Further minor bug fixes.

Heinrich Schuchardt (18):
  efi_loader: helloworld.c: remove superfluous include
  efi_loader: size of media device path node represenation
  efi_loader: efi_dp_str should print path not node
  efi_loader: fix efi_convert_device_node_to_text
  efi_loader: reimplement LocateDevicePath
  efi_selftest: test EFI_DEVICE_PATH_TO_TEXT_PROTOCOL
  efi_loader: efi_disk: use efi_add_protocol
  efi_loader: efi_net: use efi_add_protocol
  efi_loader: efi_gop: use efi_add_protocol
  efi_loader: simplify efi_open_protocol
  efi_loader: simplify find_obj
  efi_loader: manage protocols in a linked list
  efi_selftest: compile without special compiler flags
  efi_selftest: add missing line feed
  efi_loader: output load options in helloworld
  test/py: check return code of helloworld
  efi_loader: pass handle of loaded image
  efi_loader: helper function to add EFI object to list

 cmd/bootefi.c                              |   7 +-
 include/efi_loader.h                       |   8 +-
 lib/efi_loader/efi_boottime.c              | 287 ++++++++++++---------
 lib/efi_loader/efi_device_path.c           |  43 ++--
 lib/efi_loader/efi_device_path_to_text.c   | 167 ++++++------
 lib/efi_loader/efi_disk.c                  |  38 +--
 lib/efi_loader/efi_gop.c                   |  16 +-
 lib/efi_loader/efi_net.c                   |  35 +--
 lib/efi_loader/helloworld.c                |  38 ++-
 lib/efi_selftest/Makefile                  |  24 +-
 lib/efi_selftest/efi_selftest.c            |   2 +-
 lib/efi_selftest/efi_selftest_devicepath.c | 391 +++++++++++++++++++++++++++++
 test/py/tests/test_efi_loader.py           |   2 +
 13 files changed, 770 insertions(+), 288 deletions(-)
 create mode 100644 lib/efi_selftest/efi_selftest_devicepath.c

-- 
2.14.2

[U-Boot] [PATCH v3 01/18] efi_loader: helloworld.c: remove superfluous include

[Heinrich Schuchardt]

Remove a superfluous include from helloworld.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	resubmitted patch added
---
 lib/efi_loader/helloworld.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/efi_loader/helloworld.c b/lib/efi_loader/helloworld.c
index 03e65ab133..77130a36dd 100644
--- a/lib/efi_loader/helloworld.c
+++ b/lib/efi_loader/helloworld.c
@@ -8,7 +8,6 @@
  */
 
 #include <common.h>
-#include <part_efi.h>
 #include <efi_api.h>
 
 efi_status_t EFIAPI efi_main(efi_handle_t handle,
-- 
2.14.2

[U-Boot] [PATCH v3 02/18] efi_loader: size of media device path node represenation

[Heinrich Schuchardt]

In the format specifier we want to specify the maximum width
in case an ending \0 is missing.

So slen must be used as precision and not as field width.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	no change
v2
	no change
---
 lib/efi_loader/efi_device_path_to_text.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/efi_loader/efi_device_path_to_text.c b/lib/efi_loader/efi_device_path_to_text.c
index 62771338f0..98617cf163 100644
--- a/lib/efi_loader/efi_device_path_to_text.c
+++ b/lib/efi_loader/efi_device_path_to_text.c
@@ -153,7 +153,7 @@ static char *dp_media(char *s, struct efi_device_path *dp)
 		struct efi_device_path_file_path *fp =
 			(struct efi_device_path_file_path *)dp;
 		int slen = (dp->length - sizeof(*dp)) / 2;
-		s += sprintf(s, "/%-*ls", slen, fp->str);
+		s += sprintf(s, "/%-.*ls", slen, fp->str);
 		break;
 	}
 	default:
-- 
2.14.2

[U-Boot] [PATCH v3 03/18] efi_loader: efi_dp_str should print path not node

[Heinrich Schuchardt]

efi_dp_str is meant to print a device path and not a device
node.

The old coding only worked because efi_convert_device_node_to_text
was screwed up to expect paths instead of nodes.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	no change
v2
	no change
---
 lib/efi_loader/efi_device_path_to_text.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/lib/efi_loader/efi_device_path_to_text.c b/lib/efi_loader/efi_device_path_to_text.c
index 98617cf163..ad248cb492 100644
--- a/lib/efi_loader/efi_device_path_to_text.c
+++ b/lib/efi_loader/efi_device_path_to_text.c
@@ -208,13 +208,6 @@ static uint16_t *efi_convert_device_node_to_text(
 	return out;
 }
 
-/* helper for debug prints.. efi_free_pool() the result. */
-uint16_t *efi_dp_str(struct efi_device_path *dp)
-{
-	return efi_convert_device_node_to_text(dp, true, true);
-}
-
-
 static uint16_t EFIAPI *efi_convert_device_node_to_text_ext(
 		struct efi_device_path *device_node,
 		bool display_only,
@@ -251,6 +244,12 @@ static uint16_t EFIAPI *efi_convert_device_path_to_text(
 	return buffer;
 }
 
+/* helper for debug prints.. efi_free_pool() the result. */
+uint16_t *efi_dp_str(struct efi_device_path *dp)
+{
+	return EFI_CALL(efi_convert_device_path_to_text(dp, true, true));
+}
+
 const struct efi_device_path_to_text_protocol efi_device_path_to_text = {
 	.convert_device_node_to_text = efi_convert_device_node_to_text_ext,
 	.convert_device_path_to_text = efi_convert_device_path_to_text,
-- 
2.14.2

[U-Boot] [PATCH v3 04/18] efi_loader: fix efi_convert_device_node_to_text

[Heinrich Schuchardt]

We need to implement to different functions for the
EFI_DEVICE_PATH_TO_TEXT_PROTOCOL:
ConvertDeviceNodeToText
ConvertDevicePathToText

A recent patch screwed up efi_convert_device_node_to_text
to expect a device path and not a node.

The patch makes both service functions work again.

efi_convert_device_node_to_text is renamed to
efi_convert_single_device_node_to_text and
efi_convert_device_node_to_text_ext is renamed to
efi_convert_device_node_to_text to avoid future
confusion.

A test of ConvertDeviceNodeToText will be provided in
a follow-up patch.

Fixes: adae4313cdd efi_loader: flesh out device-path to text
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	Correctly handle NULL values.
v2
	no change
---
 lib/efi_loader/efi_device_path_to_text.c | 154 ++++++++++++++++++-------------
 1 file changed, 88 insertions(+), 66 deletions(-)

diff --git a/lib/efi_loader/efi_device_path_to_text.c b/lib/efi_loader/efi_device_path_to_text.c
index ad248cb492..43af5dfd8d 100644
--- a/lib/efi_loader/efi_device_path_to_text.c
+++ b/lib/efi_loader/efi_device_path_to_text.c
@@ -12,12 +12,31 @@
 #define MAC_OUTPUT_LEN 22
 #define UNKNOWN_OUTPUT_LEN 23
 
+#define MAX_NODE_LEN 512
+#define MAX_PATH_LEN 1024
+
 const efi_guid_t efi_guid_device_path_to_text_protocol =
 		EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID;
 
+static u16 *efi_str_to_u16(char *str)
+{
+	efi_uintn_t len;
+	u16 *out;
+	efi_status_t ret;
+
+	len = strlen(str) + 1;
+	ret = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES, len * sizeof(u16),
+				(void **)&out);
+	if (ret != EFI_SUCCESS)
+		return NULL;
+	ascii2unicode(out, str);
+	out[len - 1] = 0;
+	return out;
+}
+
 static char *dp_unknown(char *s, struct efi_device_path *dp)
 {
-	s += sprintf(s, "/UNKNOWN(%04x,%04x)", dp->type, dp->sub_type);
+	s += sprintf(s, "UNKNOWN(%04x,%04x)", dp->type, dp->sub_type);
 	return s;
 }
 
@@ -27,7 +46,7 @@ static char *dp_hardware(char *s, struct efi_device_path *dp)
 	case DEVICE_PATH_SUB_TYPE_MEMORY: {
 		struct efi_device_path_memory *mdp =
 			(struct efi_device_path_memory *)dp;
-		s += sprintf(s, "/MemoryMapped(0x%x,0x%llx,0x%llx)",
+		s += sprintf(s, "MemoryMapped(0x%x,0x%llx,0x%llx)",
 			     mdp->memory_type,
 			     mdp->start_address,
 			     mdp->end_address);
@@ -36,7 +55,7 @@ static char *dp_hardware(char *s, struct efi_device_path *dp)
 	case DEVICE_PATH_SUB_TYPE_VENDOR: {
 		struct efi_device_path_vendor *vdp =
 			(struct efi_device_path_vendor *)dp;
-		s += sprintf(s, "/VenHw(%pUl)", &vdp->guid);
+		s += sprintf(s, "VenHw(%pUl)", &vdp->guid);
 		break;
 	}
 	default:
@@ -52,7 +71,7 @@ static char *dp_acpi(char *s, struct efi_device_path *dp)
 	case DEVICE_PATH_SUB_TYPE_ACPI_DEVICE: {
 		struct efi_device_path_acpi_path *adp =
 			(struct efi_device_path_acpi_path *)dp;
-		s += sprintf(s, "/Acpi(PNP%04x", EISA_PNP_NUM(adp->hid));
+		s += sprintf(s, "Acpi(PNP%04x", EISA_PNP_NUM(adp->hid));
 		if (adp->uid)
 			s += sprintf(s, ",%d", adp->uid);
 		s += sprintf(s, ")");
@@ -71,7 +90,7 @@ static char *dp_msging(char *s, struct efi_device_path *dp)
 	case DEVICE_PATH_SUB_TYPE_MSG_USB: {
 		struct efi_device_path_usb *udp =
 			(struct efi_device_path_usb *)dp;
-		s += sprintf(s, "/Usb(0x%x,0x%x)", udp->parent_port_number,
+		s += sprintf(s, "Usb(0x%x,0x%x)", udp->parent_port_number,
 			     udp->usb_interface);
 		break;
 	}
@@ -82,7 +101,7 @@ static char *dp_msging(char *s, struct efi_device_path *dp)
 		if (mdp->if_type != 0 && mdp->if_type != 1)
 			break;
 
-		s += sprintf(s, "/MAC(%02x%02x%02x%02x%02x%02x,0x%1x)",
+		s += sprintf(s, "MAC(%02x%02x%02x%02x%02x%02x,0x%1x)",
 			mdp->mac.addr[0], mdp->mac.addr[1],
 			mdp->mac.addr[2], mdp->mac.addr[3],
 			mdp->mac.addr[4], mdp->mac.addr[5],
@@ -94,7 +113,7 @@ static char *dp_msging(char *s, struct efi_device_path *dp)
 		struct efi_device_path_usb_class *ucdp =
 			(struct efi_device_path_usb_class *)dp;
 
-		s += sprintf(s, "/USBClass(%x,%x,%x,%x,%x)",
+		s += sprintf(s, "USBClass(%x,%x,%x,%x,%x)",
 			ucdp->vendor_id, ucdp->product_id,
 			ucdp->device_class, ucdp->device_subclass,
 			ucdp->device_protocol);
@@ -108,7 +127,7 @@ static char *dp_msging(char *s, struct efi_device_path *dp)
 					"SDCard" : "MMC";
 		struct efi_device_path_sd_mmc_path *sddp =
 			(struct efi_device_path_sd_mmc_path *)dp;
-		s += sprintf(s, "/%s(Slot%u)", typename, sddp->slot_number);
+		s += sprintf(s, "%s(Slot%u)", typename, sddp->slot_number);
 		break;
 	}
 	default:
@@ -128,15 +147,15 @@ static char *dp_media(char *s, struct efi_device_path *dp)
 
 		switch (hddp->signature_type) {
 		case SIG_TYPE_MBR:
-			s += sprintf(s, "/HD(Part%d,Sig%08x)",
+			s += sprintf(s, "HD(Part%d,Sig%08x)",
 				     hddp->partition_number,
 				     *(uint32_t *)sig);
 			break;
 		case SIG_TYPE_GUID:
-			s += sprintf(s, "/HD(Part%d,Sig%pUl)",
+			s += sprintf(s, "HD(Part%d,Sig%pUl)",
 				     hddp->partition_number, sig);
 		default:
-			s += sprintf(s, "/HD(Part%d,MBRType=%02x,SigType=%02x)",
+			s += sprintf(s, "HD(Part%d,MBRType=%02x,SigType=%02x)",
 				     hddp->partition_number, hddp->partmap_type,
 				     hddp->signature_type);
 		}
@@ -146,14 +165,16 @@ static char *dp_media(char *s, struct efi_device_path *dp)
 	case DEVICE_PATH_SUB_TYPE_CDROM_PATH: {
 		struct efi_device_path_cdrom_path *cddp =
 			(struct efi_device_path_cdrom_path *)dp;
-		s += sprintf(s, "/CDROM(0x%x)", cddp->boot_entry);
+		s += sprintf(s, "CDROM(0x%x)", cddp->boot_entry);
 		break;
 	}
 	case DEVICE_PATH_SUB_TYPE_FILE_PATH: {
 		struct efi_device_path_file_path *fp =
 			(struct efi_device_path_file_path *)dp;
 		int slen = (dp->length - sizeof(*dp)) / 2;
-		s += sprintf(s, "/%-.*ls", slen, fp->str);
+		if (slen > MAX_NODE_LEN - 2)
+			slen = MAX_NODE_LEN - 2;
+		s += sprintf(s, "%-.*ls", slen, fp->str);
 		break;
 	}
 	default:
@@ -163,65 +184,59 @@ static char *dp_media(char *s, struct efi_device_path *dp)
 	return s;
 }
 
-static uint16_t *efi_convert_device_node_to_text(
-		struct efi_device_path *dp,
-		bool display_only,
-		bool allow_shortcuts)
+/*
+ * Converts a single node to a char string.
+ *
+ * @buffer		output buffer
+ * @dp			device path or node
+ * @return		end of string
+ */
+static char *efi_convert_single_device_node_to_text(
+		char *buffer,
+		struct efi_device_path *dp)
 {
-	unsigned long len;
-	efi_status_t r;
-	char buf[512];  /* this ought be be big enough for worst case */
-	char *str = buf;
-	uint16_t *out;
-
-	while (dp) {
-		switch (dp->type) {
-		case DEVICE_PATH_TYPE_HARDWARE_DEVICE:
-			str = dp_hardware(str, dp);
-			break;
-		case DEVICE_PATH_TYPE_ACPI_DEVICE:
-			str = dp_acpi(str, dp);
-			break;
-		case DEVICE_PATH_TYPE_MESSAGING_DEVICE:
-			str = dp_msging(str, dp);
-			break;
-		case DEVICE_PATH_TYPE_MEDIA_DEVICE:
-			str = dp_media(str, dp);
-			break;
-		default:
-			str = dp_unknown(str, dp);
-		}
+	char *str = buffer;
 
-		dp = efi_dp_next(dp);
+	switch (dp->type) {
+	case DEVICE_PATH_TYPE_HARDWARE_DEVICE:
+		str = dp_hardware(str, dp);
+		break;
+	case DEVICE_PATH_TYPE_ACPI_DEVICE:
+		str = dp_acpi(str, dp);
+		break;
+	case DEVICE_PATH_TYPE_MESSAGING_DEVICE:
+		str = dp_msging(str, dp);
+		break;
+	case DEVICE_PATH_TYPE_MEDIA_DEVICE:
+		str = dp_media(str, dp);
+		break;
+	default:
+		str = dp_unknown(str, dp);
 	}
 
-	*str++ = '\0';
-
-	len = str - buf;
-	r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES, 2 * len, (void **)&out);
-	if (r != EFI_SUCCESS)
-		return NULL;
-
-	ascii2unicode(out, buf);
-	out[len - 1] = 0;
-
-	return out;
+	*str = '\0';
+	return str;
 }
 
-static uint16_t EFIAPI *efi_convert_device_node_to_text_ext(
+static uint16_t EFIAPI *efi_convert_device_node_to_text(
 		struct efi_device_path *device_node,
 		bool display_only,
 		bool allow_shortcuts)
 {
-	uint16_t *buffer;
+	char str[MAX_NODE_LEN];
+	uint16_t *text = NULL;
 
 	EFI_ENTRY("%p, %d, %d", device_node, display_only, allow_shortcuts);
 
-	buffer = efi_convert_device_node_to_text(device_node, display_only,
-						 allow_shortcuts);
+	if (!device_node)
+		goto out;
+	efi_convert_single_device_node_to_text(str, device_node);
+
+	text = efi_str_to_u16(str);
 
+out:
 	EFI_EXIT(EFI_SUCCESS);
-	return buffer;
+	return text;
 }
 
 static uint16_t EFIAPI *efi_convert_device_path_to_text(
@@ -229,19 +244,26 @@ static uint16_t EFIAPI *efi_convert_device_path_to_text(
 		bool display_only,
 		bool allow_shortcuts)
 {
-	uint16_t *buffer;
+	uint16_t *text = NULL;
+	char buffer[MAX_PATH_LEN];
+	char *str = buffer;
 
 	EFI_ENTRY("%p, %d, %d", device_path, display_only, allow_shortcuts);
 
-	/*
-	 * Our device paths are all of depth one. So its is sufficient to
-	 * to convert the first node.
-	 */
-	buffer = efi_convert_device_node_to_text(device_path, display_only,
-						 allow_shortcuts);
+	if (!device_path)
+		goto out;
+	while (device_path &&
+	       str + MAX_NODE_LEN < buffer + MAX_PATH_LEN) {
+		*str++ = '/';
+		str = efi_convert_single_device_node_to_text(str, device_path);
+		device_path = efi_dp_next(device_path);
+	}
+
+	text = efi_str_to_u16(buffer);
 
+out:
 	EFI_EXIT(EFI_SUCCESS);
-	return buffer;
+	return text;
 }
 
 /* helper for debug prints.. efi_free_pool() the result. */
@@ -251,6 +273,6 @@ uint16_t *efi_dp_str(struct efi_device_path *dp)
 }
 
 const struct efi_device_path_to_text_protocol efi_device_path_to_text = {
-	.convert_device_node_to_text = efi_convert_device_node_to_text_ext,
+	.convert_device_node_to_text = efi_convert_device_node_to_text,
 	.convert_device_path_to_text = efi_convert_device_path_to_text,
 };
-- 
2.14.2

[U-Boot] [PATCH v3 05/18] efi_loader: reimplement LocateDevicePath

[Heinrich Schuchardt]

The current implementation of efi_locate_device_path does not match
the UEFI specification. It completely ignores the protocol
parameters.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	remove trailing dot in comment
v2
	no change
---
 lib/efi_loader/efi_boottime.c | 106 ++++++++++++++++++++++++++++++------------
 1 file changed, 76 insertions(+), 30 deletions(-)

diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 9b5512f086..565addfc3f 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -1080,36 +1080,6 @@ static efi_status_t EFIAPI efi_locate_handle_ext(
 			buffer_size, buffer));
 }
 
-/*
- * Get the device path and handle of an device implementing a protocol.
- *
- * This function implements the LocateDevicePath service.
- * See the Unified Extensible Firmware Interface (UEFI) specification
- * for details.
- *
- * @protocol		GUID of the protocol
- * @device_path		device path
- * @device		handle of the device
- * @return		status code
- */
-static efi_status_t EFIAPI efi_locate_device_path(
-			const efi_guid_t *protocol,
-			struct efi_device_path **device_path,
-			efi_handle_t *device)
-{
-	struct efi_object *efiobj;
-
-	EFI_ENTRY("%pUl, %p, %p", protocol, device_path, device);
-
-	efiobj = efi_dp_find_obj(*device_path, device_path);
-	if (!efiobj)
-		return EFI_EXIT(EFI_NOT_FOUND);
-
-	*device = efiobj->handle;
-
-	return EFI_EXIT(EFI_SUCCESS);
-}
-
 /* Collapses configuration table entries, removing index i */
 static void efi_remove_configuration_table(int i)
 {
@@ -1813,6 +1783,82 @@ static efi_status_t EFIAPI efi_locate_protocol(const efi_guid_t *protocol,
 	return EFI_EXIT(EFI_NOT_FOUND);
 }
 
+/*
+ * Get the device path and handle of an device implementing a protocol.
+ *
+ * This function implements the LocateDevicePath service.
+ * See the Unified Extensible Firmware Interface (UEFI) specification
+ * for details.
+ *
+ * @protocol		GUID of the protocol
+ * @device_path		device path
+ * @device		handle of the device
+ * @return		status code
+ */
+static efi_status_t EFIAPI efi_locate_device_path(
+			const efi_guid_t *protocol,
+			struct efi_device_path **device_path,
+			efi_handle_t *device)
+{
+	struct efi_device_path *dp;
+	size_t i;
+	struct efi_handler *handler;
+	efi_handle_t *handles;
+	size_t len, len_dp;
+	size_t len_best = 0;
+	efi_uintn_t no_handles;
+	u8 *remainder;
+	efi_status_t ret;
+
+	EFI_ENTRY("%pUl, %p, %p", protocol, device_path, device);
+
+	if (!protocol || !device_path || !*device_path || !device) {
+		ret = EFI_INVALID_PARAMETER;
+		goto out;
+	}
+
+	/* Find end of device path */
+	len = efi_dp_size(*device_path);
+
+	/* Get all handles implementing the protocol */
+	ret = EFI_CALL(efi_locate_handle_buffer(BY_PROTOCOL, protocol, NULL,
+						&no_handles, &handles));
+	if (ret != EFI_SUCCESS)
+		goto out;
+
+	for (i = 0; i < no_handles; ++i) {
+		/* Find the device path protocol */
+		ret = efi_search_protocol(handles[i], &efi_guid_device_path,
+					  &handler);
+		if (ret != EFI_SUCCESS)
+			continue;
+		dp = (struct efi_device_path *)handler->protocol_interface;
+		len_dp = efi_dp_size(dp);
+		/*
+		 * This handle can only be a better fit
+		 * if its device path length is longer than the best fit and
+		 * if its device path length is shorter of equal the searched
+		 * device path.
+		 */
+		if (len_dp <= len_best || len_dp > len)
+			continue;
+		/* Check if dp is a subpath of device_path */
+		if (memcmp(*device_path, dp, len_dp))
+			continue;
+		*device = handles[i];
+		len_best = len_dp;
+	}
+	if (len_best) {
+		remainder = (u8 *)*device_path + len_best;
+		*device_path = (struct efi_device_path *)remainder;
+		ret = EFI_SUCCESS;
+	} else {
+		ret = EFI_NOT_FOUND;
+	}
+out:
+	return EFI_EXIT(ret);
+}
+
 /*
  * Install multiple protocol interfaces.
  *
-- 
2.14.2

[U-Boot] [PATCH v3 06/18] efi_selftest: test EFI_DEVICE_PATH_TO_TEXT_PROTOCOL

[Heinrich Schuchardt]

Provide a test for the EFI_DEVICE_PATH_TO_TEXT_PROTOCOL protocol.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	Print all installed device paths.
v2
	No change
---
 lib/efi_selftest/Makefile                  |   3 +
 lib/efi_selftest/efi_selftest_devicepath.c | 391 +++++++++++++++++++++++++++++
 2 files changed, 394 insertions(+)
 create mode 100644 lib/efi_selftest/efi_selftest_devicepath.c

diff --git a/lib/efi_selftest/Makefile b/lib/efi_selftest/Makefile
index 1851c17db6..d280eca5c3 100644
--- a/lib/efi_selftest/Makefile
+++ b/lib/efi_selftest/Makefile
@@ -11,6 +11,8 @@ CFLAGS_efi_selftest.o := $(CFLAGS_EFI)
 CFLAGS_REMOVE_efi_selftest.o := $(CFLAGS_NON_EFI)
 CFLAGS_efi_selftest_console.o := $(CFLAGS_EFI)
 CFLAGS_REMOVE_efi_selftest_console.o := $(CFLAGS_NON_EFI)
+CFLAGS_efi_selftest_devicepathe.o := $(CFLAGS_EFI)
+CFLAGS_REMOVE_efi_selftest_devicepath.o := $(CFLAGS_NON_EFI)
 CFLAGS_efi_selftest_events.o := $(CFLAGS_EFI)
 CFLAGS_REMOVE_efi_selftest_events.o := $(CFLAGS_NON_EFI)
 CFLAGS_efi_selftest_exitbootservices.o := $(CFLAGS_EFI)
@@ -33,6 +35,7 @@ CFLAGS_REMOVE_efi_selftest_watchdog.o := $(CFLAGS_NON_EFI)
 obj-$(CONFIG_CMD_BOOTEFI_SELFTEST) += \
 efi_selftest.o \
 efi_selftest_console.o \
+efi_selftest_devicepath.o \
 efi_selftest_events.o \
 efi_selftest_exitbootservices.o \
 efi_selftest_gop.o \
diff --git a/lib/efi_selftest/efi_selftest_devicepath.c b/lib/efi_selftest/efi_selftest_devicepath.c
new file mode 100644
index 0000000000..55f4632b14
--- /dev/null
+++ b/lib/efi_selftest/efi_selftest_devicepath.c
@@ -0,0 +1,390 @@
+/*
+ * efi_selftest_devicepath
+ *
+ * Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ *
+ * This unit test checks the following protocol services:
+ * DevicePathToText
+ */
+
+#include <efi_selftest.h>
+
+static struct efi_boot_services *boottime;
+
+static efi_handle_t handle1;
+static efi_handle_t handle2;
+static efi_handle_t handle3;
+
+struct interface {
+	void (EFIAPI * inc)(void);
+} interface;
+
+static efi_guid_t guid_device_path = DEVICE_PATH_GUID;
+
+static efi_guid_t guid_device_path_to_text_protocol =
+	EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID;
+
+static efi_guid_t guid_protocol =
+	EFI_GUID(0xdbca4c98, 0x6cb0, 0x694d,
+		 0x08, 0x72, 0x81, 0x9c, 0x65, 0x0c, 0xbb, 0x7d);
+
+static efi_guid_t guid_vendor1 =
+	EFI_GUID(0xdbca4c98, 0x6cb0, 0x694d,
+		 0x08, 0x72, 0x81, 0x9c, 0x65, 0x0c, 0xbb, 0xb1);
+
+static efi_guid_t guid_vendor2 =
+	EFI_GUID(0xdbca4c98, 0x6cb0, 0x694d,
+		 0x08, 0x72, 0x81, 0x9c, 0x65, 0x0c, 0xbb, 0xa2);
+
+static efi_guid_t guid_vendor3 =
+	EFI_GUID(0xdbca4c98, 0x6cb0, 0x694d,
+		 0x08, 0x72, 0x81, 0x9c, 0x65, 0x0c, 0xbb, 0xc3);
+
+static u8 *dp1;
+static u8 *dp2;
+static u8 *dp3;
+
+struct efi_device_path_to_text_protocol *device_path_to_text;
+
+/*
+ * Setup unit test.
+ *
+ * Create three handles. Install a new protocol on two of them and
+ * provice device paths.
+ *
+ * handle1
+ *   guid interface
+ * handle2
+ *   guid interface
+ * handle3
+ *
+ * @handle:	handle of the loaded image
+ * @systable:	system table
+ */
+static int setup(const efi_handle_t img_handle,
+		 const struct efi_system_table *systable)
+{
+	struct efi_device_path_vendor vendor_node;
+	struct efi_device_path end_node;
+	efi_status_t ret;
+
+	boottime = systable->boottime;
+
+	ret = boottime->locate_protocol(&guid_device_path_to_text_protocol,
+					NULL, (void **)&device_path_to_text);
+	if (ret != EFI_SUCCESS) {
+		device_path_to_text = NULL;
+		efi_st_error(
+			"Device path to text protocol is not available.\n");
+		return EFI_ST_FAILURE;
+	}
+
+	ret = boottime->allocate_pool(EFI_LOADER_DATA,
+				      sizeof(struct efi_device_path_vendor) +
+				      sizeof(struct efi_device_path),
+				      (void **)&dp1);
+	if (ret != EFI_SUCCESS)
+		goto out_of_memory;
+
+	ret = boottime->allocate_pool(EFI_LOADER_DATA, 2 *
+				      sizeof(struct efi_device_path_vendor) +
+				      sizeof(struct efi_device_path),
+				      (void **)&dp2);
+	if (ret != EFI_SUCCESS)
+		goto out_of_memory;
+
+	ret = boottime->allocate_pool(EFI_LOADER_DATA, 3 *
+				      sizeof(struct efi_device_path_vendor) +
+				      sizeof(struct efi_device_path),
+				      (void **)&dp3);
+	if (ret != EFI_SUCCESS)
+		goto out_of_memory;
+
+	vendor_node.dp.type = DEVICE_PATH_TYPE_HARDWARE_DEVICE;
+	vendor_node.dp.sub_type = DEVICE_PATH_SUB_TYPE_VENDOR;
+	vendor_node.dp.length = sizeof(struct efi_device_path_vendor);
+
+	boottime->copy_mem(&vendor_node.guid, &guid_vendor1,
+			   sizeof(efi_guid_t));
+	boottime->copy_mem(dp1, &vendor_node,
+			   sizeof(struct efi_device_path_vendor));
+	boottime->copy_mem(dp2, &vendor_node,
+			   sizeof(struct efi_device_path_vendor));
+	boottime->copy_mem(dp3, &vendor_node,
+			   sizeof(struct efi_device_path_vendor));
+
+	boottime->copy_mem(&vendor_node.guid, &guid_vendor2,
+			   sizeof(efi_guid_t));
+	boottime->copy_mem(dp2 + sizeof(struct efi_device_path_vendor),
+			   &vendor_node, sizeof(struct efi_device_path_vendor));
+	boottime->copy_mem(dp3 + sizeof(struct efi_device_path_vendor),
+			   &vendor_node, sizeof(struct efi_device_path_vendor));
+
+	boottime->copy_mem(&vendor_node.guid, &guid_vendor3,
+			   sizeof(efi_guid_t));
+	boottime->copy_mem(dp3 + 2 * sizeof(struct efi_device_path_vendor),
+			   &vendor_node, sizeof(struct efi_device_path_vendor));
+
+	end_node.type = DEVICE_PATH_TYPE_END;
+	end_node.sub_type = DEVICE_PATH_SUB_TYPE_END;
+	end_node.length = sizeof(struct efi_device_path);
+	boottime->copy_mem(dp1 + sizeof(struct efi_device_path_vendor),
+			   &end_node, sizeof(struct efi_device_path));
+	boottime->copy_mem(dp2 + 2 * sizeof(struct efi_device_path_vendor),
+			   &end_node, sizeof(struct efi_device_path));
+	boottime->copy_mem(dp3 + 3 * sizeof(struct efi_device_path_vendor),
+			   &end_node, sizeof(struct efi_device_path));
+
+	ret = boottime->install_protocol_interface(&handle1,
+						   &guid_device_path,
+						   EFI_NATIVE_INTERFACE,
+						   dp1);
+	if (ret != EFI_SUCCESS) {
+		efi_st_error("InstallProtocolInterface failed\n");
+		return EFI_ST_FAILURE;
+	}
+	ret = boottime->install_protocol_interface(&handle1,
+						   &guid_protocol,
+						   EFI_NATIVE_INTERFACE,
+						   &interface);
+	if (ret != EFI_SUCCESS) {
+		efi_st_error("InstallProtocolInterface failed\n");
+		return EFI_ST_FAILURE;
+	}
+	ret = boottime->install_protocol_interface(&handle2,
+						   &guid_device_path,
+						   EFI_NATIVE_INTERFACE,
+						   dp2);
+	if (ret != EFI_SUCCESS) {
+		efi_st_error("InstallProtocolInterface failed\n");
+		return EFI_ST_FAILURE;
+	}
+	ret = boottime->install_protocol_interface(&handle2,
+						   &guid_protocol,
+						   EFI_NATIVE_INTERFACE,
+						   &interface);
+	if (ret != EFI_SUCCESS) {
+		efi_st_error("InstallProtocolInterface failed\n");
+		return EFI_ST_FAILURE;
+	}
+	ret = boottime->install_protocol_interface(&handle3,
+						   &guid_device_path,
+						   EFI_NATIVE_INTERFACE,
+						   dp3);
+	if (ret != EFI_SUCCESS) {
+		efi_st_error("InstallProtocolInterface failed\n");
+		return EFI_ST_FAILURE;
+	}
+	return EFI_ST_SUCCESS;
+
+out_of_memory:
+	efi_st_error("Out of memory\n");
+	return EFI_ST_FAILURE;
+}
+
+/*
+ * Tear down unit test.
+ *
+ */
+static int teardown(void)
+{
+	efi_status_t ret;
+
+	ret = boottime->uninstall_protocol_interface(&handle1,
+						     &guid_device_path,
+						     dp1);
+	if (ret != EFI_SUCCESS)
+		efi_st_todo("UninstallProtocolInterface failed\n");
+	ret = boottime->uninstall_protocol_interface(&handle1,
+						     &guid_protocol,
+						     &interface);
+	if (ret != EFI_SUCCESS)
+		efi_st_todo("UninstallProtocolInterface failed\n");
+	ret = boottime->uninstall_protocol_interface(&handle2,
+						     &guid_device_path,
+						     dp2);
+	if (ret != EFI_SUCCESS)
+		efi_st_todo("UninstallProtocolInterface failed\n");
+	ret = boottime->uninstall_protocol_interface(&handle2,
+						     &guid_protocol,
+						     &interface);
+	if (ret != EFI_SUCCESS)
+		efi_st_todo("UninstallProtocolInterface failed\n");
+	ret = boottime->uninstall_protocol_interface(&handle3,
+						     &guid_device_path,
+						     dp3);
+	if (ret != EFI_SUCCESS)
+		efi_st_todo("UninstallProtocolInterface failed\n");
+	if (dp1) {
+		ret = boottime->free_pool(dp1);
+		if (ret != EFI_SUCCESS) {
+			efi_st_error("FreePool failed\n");
+			return EFI_ST_FAILURE;
+		}
+	}
+	if (dp2) {
+		ret = boottime->free_pool(dp2);
+		if (ret != EFI_SUCCESS) {
+			efi_st_error("FreePool failed\n");
+			return EFI_ST_FAILURE;
+		}
+	}
+	if (dp3) {
+		ret = boottime->free_pool(dp3);
+		if (ret != EFI_SUCCESS) {
+			efi_st_error("FreePool failed\n");
+			return EFI_ST_FAILURE;
+		}
+	}
+	return EFI_ST_SUCCESS;
+}
+
+/*
+ * Execute unit test.
+ *
+ */
+static int execute(void)
+{
+	struct efi_device_path *remaining_dp;
+	void *handle;
+	/*
+	 * This device path node ends with the letter 't' of 'u-boot'.
+	 * The following '.bin' does not belong to the node but is
+	 * helps to test the correct truncation.
+	 */
+	struct {
+		struct efi_device_path dp;
+		u16 text[12];
+	} __packed dp_node = {
+			{ DEVICE_PATH_TYPE_MEDIA_DEVICE,
+			  DEVICE_PATH_SUB_TYPE_FILE_PATH,
+			  sizeof(struct efi_device_path) + 12},
+			L"u-boot.bin",
+		};
+	u16 *string;
+	efi_status_t ret;
+	efi_uintn_t i, no_handles;
+	efi_handle_t *handles;
+	struct efi_device_path *dp;
+
+	/* Display all available device paths */
+	ret = boottime->locate_handle_buffer(BY_PROTOCOL,
+					     &guid_device_path,
+					     NULL, &no_handles, &handles);
+	if (ret != EFI_SUCCESS) {
+		efi_st_error("Cannot retrieve device path protocols.\n");
+		return EFI_ST_FAILURE;
+	}
+
+	efi_st_printf("Installed device path protocols:\n");
+	for (i = 0; i < no_handles; ++i) {
+		ret = boottime->open_protocol(handles[i], &guid_device_path,
+					      (void **)&dp, NULL, NULL,
+					      EFI_OPEN_PROTOCOL_GET_PROTOCOL);
+		if (ret != EFI_SUCCESS) {
+			efi_st_error("Cannot open device path protocol.\n");
+			return EFI_ST_FAILURE;
+		}
+		string = device_path_to_text->convert_device_path_to_text(
+					dp, true, false);
+		if (!string) {
+			efi_st_error("ConvertDevicePathToText failed\n");
+			return EFI_ST_FAILURE;
+		}
+		efi_st_printf("%ps\n", string);
+		ret = boottime->free_pool(string);
+		if (ret != EFI_SUCCESS) {
+			efi_st_error("FreePool failed\n");
+			return EFI_ST_FAILURE;
+		}
+		ret = boottime->close_protocol(handles[i], &guid_device_path,
+					       NULL, NULL);
+		if (ret != EFI_SUCCESS)
+			efi_st_todo("Cannot close device path protocol.\n");
+	}
+	ret = boottime->free_pool(handles);
+	if (ret != EFI_SUCCESS) {
+		efi_st_error("FreePool failed\n");
+		return EFI_ST_FAILURE;
+	}
+	efi_st_printf("\n");
+
+	/* Test ConvertDevicePathToText */
+	string = device_path_to_text->convert_device_path_to_text(
+			(struct efi_device_path *)dp2, true, false);
+	if (!string) {
+		efi_st_error("ConvertDevicePathToText failed\n");
+		return EFI_ST_FAILURE;
+	}
+	efi_st_printf("dp2: %ps\n", string);
+	if (efi_st_strcmp_16_8(
+		string,
+		"/VenHw(dbca4c98-6cb0-694d-0872-819c650cbbb1)/VenHw(dbca4c98-6cb0-694d-0872-819c650cbba2)")
+	    ) {
+		efi_st_error("Incorrect text from ConvertDevicePathToText\n");
+		return EFI_ST_FAILURE;
+	}
+
+	ret = boottime->free_pool(string);
+	if (ret != EFI_SUCCESS) {
+		efi_st_error("FreePool failed\n");
+		return EFI_ST_FAILURE;
+	}
+
+	/* Test ConvertDeviceNodeToText */
+	string = device_path_to_text->convert_device_node_to_text(
+			(struct efi_device_path *)&dp_node, true, false);
+	if (!string) {
+		efi_st_error("ConvertDeviceNodeToText failed\n");
+		return EFI_ST_FAILURE;
+	}
+	efi_st_printf("dp_node: %ps\n", string);
+	ret = boottime->free_pool(string);
+	if (ret != EFI_SUCCESS) {
+		efi_st_error("FreePool failed\n");
+		return EFI_ST_FAILURE;
+	}
+	if (efi_st_strcmp_16_8(string, "u-boot")) {
+		efi_st_error(
+			"Incorrect conversion by ConvertDeviceNodeToText\n");
+		return EFI_ST_FAILURE;
+	}
+
+	/* Test LocateDevicePath */
+	remaining_dp = (struct efi_device_path *)dp3;
+	ret = boottime->locate_device_path(&guid_protocol, &remaining_dp,
+					   &handle);
+	if (ret != EFI_SUCCESS) {
+		efi_st_error("LocateDevicePath failed\n");
+		return EFI_ST_FAILURE;
+	}
+	if (handle != handle2) {
+		efi_st_error("LocateDevicePath returned wrong handle\n");
+		return EFI_ST_FAILURE;
+	}
+	string = device_path_to_text->convert_device_path_to_text(remaining_dp,
+								  true, false);
+	if (!string) {
+		efi_st_error("ConvertDevicePathToText failed\n");
+		return EFI_ST_FAILURE;
+	}
+	efi_st_printf("remaining device path: %ps\n", string);
+	if (efi_st_strcmp_16_8(string,
+			       "/VenHw(dbca4c98-6cb0-694d-0872-819c650cbbc3)")
+	    ) {
+		efi_st_error("LocateDevicePath: wrong remaining device path\n");
+		return EFI_ST_FAILURE;
+	}
+
+	return EFI_ST_SUCCESS;
+}
+
+EFI_UNIT_TEST(devicepath) = {
+	.name = "device path",
+	.phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
+	.setup = setup,
+	.execute = execute,
+	.teardown = teardown,
+};
-- 
2.14.2

[U-Boot] [PATCH v3 07/18] efi_loader: efi_disk: use efi_add_protocol

[Heinrich Schuchardt]

Use efi_add_protocol to install protocols.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	no change
v2
	no change
---
 lib/efi_loader/efi_disk.c | 39 +++++++++++++++++++++++----------------
 1 file changed, 23 insertions(+), 16 deletions(-)

diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c
index c6f0d732c1..1d6cf3122f 100644
--- a/lib/efi_loader/efi_disk.c
+++ b/lib/efi_loader/efi_disk.c
@@ -213,33 +213,40 @@ static void efi_disk_add_dev(const char *name,
 			     unsigned int part)
 {
 	struct efi_disk_obj *diskobj;
+	efi_status_t ret;
 
 	/* Don't add empty devices */
 	if (!desc->lba)
 		return;
 
 	diskobj = calloc(1, sizeof(*diskobj));
-	if (!diskobj) {
-		printf("ERROR: Out of memory\n");
-		return;
-	}
+	if (!diskobj)
+		goto out_of_memory;
+
+	/* Hook up to the device list */
+	list_add_tail(&diskobj->parent.link, &efi_obj_list);
 
 	/* Fill in object data */
 	diskobj->dp = efi_dp_from_part(desc, part);
 	diskobj->part = part;
-	diskobj->parent.protocols[0].guid = &efi_block_io_guid;
-	diskobj->parent.protocols[0].protocol_interface = &diskobj->ops;
-	diskobj->parent.protocols[1].guid = &efi_guid_device_path;
-	diskobj->parent.protocols[1].protocol_interface = diskobj->dp;
+	diskobj->parent.handle = diskobj;
+	ret = efi_add_protocol(diskobj->parent.handle, &efi_block_io_guid,
+			       &diskobj->ops);
+	if (ret != EFI_SUCCESS)
+		goto out_of_memory;
+	ret = efi_add_protocol(diskobj->parent.handle, &efi_guid_device_path,
+			       diskobj->dp);
+	if (ret != EFI_SUCCESS)
+		goto out_of_memory;
 	if (part >= 1) {
 		diskobj->volume = efi_simple_file_system(desc, part,
 							 diskobj->dp);
-		diskobj->parent.protocols[2].guid =
-			&efi_simple_file_system_protocol_guid;
-		diskobj->parent.protocols[2].protocol_interface =
-			diskobj->volume;
+		ret = efi_add_protocol(diskobj->parent.handle,
+				       &efi_simple_file_system_protocol_guid,
+				       &diskobj->volume);
+		if (ret != EFI_SUCCESS)
+			goto out_of_memory;
 	}
-	diskobj->parent.handle = diskobj;
 	diskobj->ops = block_io_disk_template;
 	diskobj->ifname = if_typename;
 	diskobj->dev_index = dev_index;
@@ -253,9 +260,9 @@ static void efi_disk_add_dev(const char *name,
 	diskobj->media.io_align = desc->blksz;
 	diskobj->media.last_block = desc->lba - offset;
 	diskobj->ops.media = &diskobj->media;
-
-	/* Hook up to the device list */
-	list_add_tail(&diskobj->parent.link, &efi_obj_list);
+	return;
+out_of_memory:
+	printf("ERROR: Out of memory\n");
 }
 
 static int efi_disk_create_eltorito(struct blk_desc *desc,
-- 
2.14.2

[U-Boot] [PATCH v3 08/18] efi_loader: efi_net: use efi_add_protocol

[Heinrich Schuchardt]

Use efi_add_protocol to add protocols.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	no change
v2
	no change
---
 lib/efi_loader/efi_net.c | 34 ++++++++++++++++++++--------------
 1 file changed, 20 insertions(+), 14 deletions(-)

diff --git a/lib/efi_loader/efi_net.c b/lib/efi_loader/efi_net.c
index a7b101e830..8b2f682351 100644
--- a/lib/efi_loader/efi_net.c
+++ b/lib/efi_loader/efi_net.c
@@ -292,20 +292,26 @@ int efi_net_register(void)
 
 	/* We only expose the "active" eth device, so one is enough */
 	netobj = calloc(1, sizeof(*netobj));
-	if (!netobj) {
-		printf("ERROR: Out of memory\n");
-		return 1;
-	}
+	if (!netobj)
+		goto out_of_memory;
+
+	/* Hook net up to the device list */
+	list_add_tail(&netobj->parent.link, &efi_obj_list);
 
 	/* Fill in object data */
-	netobj->parent.protocols[0].guid = &efi_net_guid;
-	netobj->parent.protocols[0].protocol_interface = &netobj->net;
-	netobj->parent.protocols[1].guid = &efi_guid_device_path;
-	netobj->parent.protocols[1].protocol_interface =
-		efi_dp_from_eth();
-	netobj->parent.protocols[2].guid = &efi_pxe_guid;
-	netobj->parent.protocols[2].protocol_interface = &netobj->pxe;
 	netobj->parent.handle = &netobj->net;
+	r = efi_add_protocol(netobj->parent.handle, &efi_net_guid,
+			     &netobj->net);
+	if (r != EFI_SUCCESS)
+		goto out_of_memory;
+	r = efi_add_protocol(netobj->parent.handle, &efi_guid_device_path,
+			     efi_dp_from_eth());
+	if (r != EFI_SUCCESS)
+		goto out_of_memory;
+	r = efi_add_protocol(netobj->parent.handle, &efi_pxe_guid,
+			     &netobj->pxe);
+	if (r != EFI_SUCCESS)
+		goto out_of_memory;
 	netobj->net.revision = EFI_SIMPLE_NETWORK_PROTOCOL_REVISION;
 	netobj->net.start = efi_net_start;
 	netobj->net.stop = efi_net_stop;
@@ -330,9 +336,6 @@ int efi_net_register(void)
 	if (dhcp_ack)
 		netobj->pxe_mode.dhcp_ack = *dhcp_ack;
 
-	/* Hook net up to the device list */
-	list_add_tail(&netobj->parent.link, &efi_obj_list);
-
 	/*
 	 * Create WaitForPacket event.
 	 */
@@ -365,4 +368,7 @@ int efi_net_register(void)
 	}
 
 	return 0;
+out_of_memory:
+	printf("ERROR: Out of memory\n");
+	return 1;
 }
-- 
2.14.2

[U-Boot] [PATCH v3 09/18] efi_loader: efi_gop: use efi_add_protocol

[Heinrich Schuchardt]

Use efi_add_protocol to add protocol.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	no change
v2
	no change
---
 lib/efi_loader/efi_gop.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/lib/efi_loader/efi_gop.c b/lib/efi_loader/efi_gop.c
index 7370eeee37..7b74d6ef33 100644
--- a/lib/efi_loader/efi_gop.c
+++ b/lib/efi_loader/efi_gop.c
@@ -132,6 +132,7 @@ int efi_gop_register(void)
 	u32 bpix, col, row;
 	u64 fb_base, fb_size;
 	void *fb;
+	efi_status_t ret;
 
 #ifdef CONFIG_DM_VIDEO
 	struct udevice *vdev;
@@ -178,10 +179,17 @@ int efi_gop_register(void)
 		return 1;
 	}
 
+	/* Hook up to the device list */
+	list_add_tail(&gopobj->parent.link, &efi_obj_list);
+
 	/* Fill in object data */
-	gopobj->parent.protocols[0].guid = &efi_gop_guid;
-	gopobj->parent.protocols[0].protocol_interface = &gopobj->ops;
 	gopobj->parent.handle = &gopobj->ops;
+	ret = efi_add_protocol(gopobj->parent.handle, &efi_gop_guid,
+			       &gopobj->ops);
+	if (ret != EFI_SUCCESS) {
+		printf("ERROR: Out of memory\n");
+		return 1;
+	}
 	gopobj->ops.query_mode = gop_query_mode;
 	gopobj->ops.set_mode = gop_set_mode;
 	gopobj->ops.blt = gop_blt;
@@ -210,8 +218,5 @@ int efi_gop_register(void)
 	gopobj->bpix = bpix;
 	gopobj->fb = fb;
 
-	/* Hook up to the device list */
-	list_add_tail(&gopobj->parent.link, &efi_obj_list);
-
 	return 0;
 }
-- 
2.14.2

[U-Boot] [PATCH v3 10/18] efi_loader: simplify efi_open_protocol

[Heinrich Schuchardt]

Use function efi_search_protocol.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	no change
v2
	no change
---
 lib/efi_loader/efi_boottime.c | 36 ++++++------------------------------
 1 file changed, 6 insertions(+), 30 deletions(-)

diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 565addfc3f..4cc5b1e620 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -2051,8 +2051,7 @@ static efi_status_t EFIAPI efi_open_protocol(
 			void **protocol_interface, void *agent_handle,
 			void *controller_handle, uint32_t attributes)
 {
-	struct list_head *lhandle;
-	int i;
+	struct efi_handler *handler;
 	efi_status_t r = EFI_INVALID_PARAMETER;
 
 	EFI_ENTRY("%p, %pUl, %p, %p, %p, 0x%x", handle, protocol,
@@ -2065,8 +2064,6 @@ static efi_status_t EFIAPI efi_open_protocol(
 		goto out;
 	}
 
-	EFI_PRINT_GUID("protocol", protocol);
-
 	switch (attributes) {
 	case EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL:
 	case EFI_OPEN_PROTOCOL_GET_PROTOCOL:
@@ -2087,33 +2084,12 @@ static efi_status_t EFIAPI efi_open_protocol(
 		goto out;
 	}
 
-	list_for_each(lhandle, &efi_obj_list) {
-		struct efi_object *efiobj;
-		efiobj = list_entry(lhandle, struct efi_object, link);
-
-		if (efiobj->handle != handle)
-			continue;
-
-		for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
-			struct efi_handler *handler = &efiobj->protocols[i];
-			const efi_guid_t *hprotocol = handler->guid;
-			if (!hprotocol)
-				continue;
-			if (!guidcmp(hprotocol, protocol)) {
-				if (attributes !=
-				    EFI_OPEN_PROTOCOL_TEST_PROTOCOL) {
-					*protocol_interface =
-						handler->protocol_interface;
-				}
-				r = EFI_SUCCESS;
-				goto out;
-			}
-		}
-		goto unsupported;
-	}
+	r = efi_search_protocol(handle, protocol, &handler);
+	if (r != EFI_SUCCESS)
+		goto out;
 
-unsupported:
-	r = EFI_UNSUPPORTED;
+	if (attributes != EFI_OPEN_PROTOCOL_TEST_PROTOCOL)
+		*protocol_interface = handler->protocol_interface;
 out:
 	return EFI_EXIT(r);
 }
-- 
2.14.2

[U-Boot] [PATCH v3 11/18] efi_loader: simplify find_obj

[Heinrich Schuchardt]

Use function efi_search_protocol().

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	fix typo in commit message
v2
	no change
---
 lib/efi_loader/efi_device_path.c | 43 ++++++++++++++++++----------------------
 1 file changed, 19 insertions(+), 24 deletions(-)

diff --git a/lib/efi_loader/efi_device_path.c b/lib/efi_loader/efi_device_path.c
index 9027ae8efb..b4e2f933cb 100644
--- a/lib/efi_loader/efi_device_path.c
+++ b/lib/efi_loader/efi_device_path.c
@@ -128,32 +128,27 @@ static struct efi_object *find_obj(struct efi_device_path *dp, bool short_path,
 	struct efi_object *efiobj;
 
 	list_for_each_entry(efiobj, &efi_obj_list, link) {
-		int i;
-
-		for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
-			struct efi_handler *handler = &efiobj->protocols[i];
-			struct efi_device_path *obj_dp;
-
-			if (!handler->guid)
-				break;
-
-			if (guidcmp(handler->guid, &efi_guid_device_path))
-				continue;
-
-			obj_dp = handler->protocol_interface;
-
-			do {
-				if (efi_dp_match(dp, obj_dp) == 0) {
-					if (rem) {
-						*rem = ((void *)dp) +
-							efi_dp_size(obj_dp);
-					}
-					return efiobj;
+		struct efi_handler *handler;
+		struct efi_device_path *obj_dp;
+		efi_status_t ret;
+
+		ret = efi_search_protocol(efiobj->handle,
+					  &efi_guid_device_path, &handler);
+		if (ret != EFI_SUCCESS)
+			continue;
+		obj_dp = handler->protocol_interface;
+
+		do {
+			if (efi_dp_match(dp, obj_dp) == 0) {
+				if (rem) {
+					*rem = ((void *)dp) +
+						efi_dp_size(obj_dp);
 				}
+				return efiobj;
+			}
 
-				obj_dp = shorten_path(efi_dp_next(obj_dp));
-			} while (short_path && obj_dp);
-		}
+			obj_dp = shorten_path(efi_dp_next(obj_dp));
+		} while (short_path && obj_dp);
 	}
 
 	return NULL;
-- 
2.14.2

[U-Boot] [PATCH v3 12/18] efi_loader: manage protocols in a linked list

[Heinrich Schuchardt]

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	no change
v2
	no change
---
 include/efi_loader.h          |   6 ++-
 lib/efi_loader/efi_boottime.c | 107 ++++++++++++++++++++----------------------
 lib/efi_loader/efi_disk.c     |   1 +
 lib/efi_loader/efi_gop.c      |   1 +
 lib/efi_loader/efi_net.c      |   1 +
 5 files changed, 58 insertions(+), 58 deletions(-)

diff --git a/include/efi_loader.h b/include/efi_loader.h
index e1f0af3496..a73bbc1269 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -101,6 +101,8 @@ extern unsigned int __efi_runtime_rel_start, __efi_runtime_rel_stop;
  * interface (usually a struct with callback functions), this struct maps the
  * protocol GUID to the respective protocol interface */
 struct efi_handler {
+	/* Link to the list of protocols of a handle */
+	struct list_head link;
 	const efi_guid_t *guid;
 	void *protocol_interface;
 };
@@ -115,8 +117,8 @@ struct efi_handler {
 struct efi_object {
 	/* Every UEFI object is part of a global object list */
 	struct list_head link;
-	/* We support up to 16 "protocols" an object can be accessed through */
-	struct efi_handler protocols[16];
+	/* The list of protocols */
+	struct list_head protocols;
 	/* The object spawner can either use this for data or as identifier */
 	void *handle;
 };
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 4cc5b1e620..54e9c27db1 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -339,6 +339,7 @@ efi_status_t efi_create_handle(void **handle)
 		return r;
 	memset(obj, 0, sizeof(struct efi_object));
 	obj->handle = obj;
+	INIT_LIST_HEAD(&obj->protocols);
 	list_add_tail(&obj->link, &efi_obj_list);
 	*handle = obj;
 	return r;
@@ -715,18 +716,17 @@ efi_status_t efi_search_protocol(const void *handle,
 				 struct efi_handler **handler)
 {
 	struct efi_object *efiobj;
-	size_t i;
-	struct efi_handler *protocol;
+	struct list_head *lhandle;
 
 	if (!handle || !protocol_guid)
 		return EFI_INVALID_PARAMETER;
 	efiobj = efi_search_obj(handle);
 	if (!efiobj)
 		return EFI_INVALID_PARAMETER;
-	for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
-		protocol = &efiobj->protocols[i];
-		if (!protocol->guid)
-			continue;
+	list_for_each(lhandle, &efiobj->protocols) {
+		struct efi_handler *protocol;
+
+		protocol = list_entry(lhandle, struct efi_handler, link);
 		if (!guidcmp(protocol->guid, protocol_guid)) {
 			if (handler)
 				*handler = protocol;
@@ -750,7 +750,6 @@ efi_status_t efi_add_protocol(const void *handle, const efi_guid_t *protocol,
 	struct efi_object *efiobj;
 	struct efi_handler *handler;
 	efi_status_t ret;
-	size_t i;
 
 	efiobj = efi_search_obj(handle);
 	if (!efiobj)
@@ -761,16 +760,10 @@ efi_status_t efi_add_protocol(const void *handle, const efi_guid_t *protocol,
 	handler = calloc(1, sizeof(struct efi_handler));
 	if (!handler)
 		return EFI_OUT_OF_RESOURCES;
-	/* Install protocol in first empty slot. */
-	for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
-		handler = &efiobj->protocols[i];
-		if (handler->guid)
-			continue;
-		handler->guid = protocol;
-		handler->protocol_interface = protocol_interface;
-		return EFI_SUCCESS;
-	}
-	return EFI_OUT_OF_RESOURCES;
+	handler->guid = protocol;
+	handler->protocol_interface = protocol_interface;
+	list_add_tail(&handler->link, &efiobj->protocols);
+	return EFI_SUCCESS;
 }
 
 /*
@@ -790,10 +783,10 @@ efi_status_t efi_remove_protocol(const void *handle, const efi_guid_t *protocol,
 	ret = efi_search_protocol(handle, protocol, &handler);
 	if (ret != EFI_SUCCESS)
 		return ret;
-	if (handler->protocol_interface != protocol_interface)
-		return EFI_NOT_FOUND;
-	handler->guid = NULL;
-	handler->protocol_interface = NULL;
+	if (guidcmp(handler->guid, protocol))
+		return EFI_INVALID_PARAMETER;
+	list_del(&handler->link);
+	free(handler);
 	return EFI_SUCCESS;
 }
 
@@ -806,17 +799,22 @@ efi_status_t efi_remove_protocol(const void *handle, const efi_guid_t *protocol,
 efi_status_t efi_remove_all_protocols(const void *handle)
 {
 	struct efi_object *efiobj;
-	struct efi_handler *handler;
-	size_t i;
+	struct list_head *lhandle;
+	struct list_head *pos;
 
 	efiobj = efi_search_obj(handle);
 	if (!efiobj)
 		return EFI_INVALID_PARAMETER;
+	list_for_each_safe(lhandle, pos, &efiobj->protocols) {
+		struct efi_handler *protocol;
+		efi_status_t ret;
 
-	for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
-		handler = &efiobj->protocols[i];
-		handler->guid = NULL;
-		handler->protocol_interface = NULL;
+		protocol = list_entry(lhandle, struct efi_handler, link);
+
+		ret = efi_remove_protocol(handle, protocol->guid,
+					  protocol->protocol_interface);
+		if (ret != EFI_SUCCESS)
+			return ret;
 	}
 	return EFI_SUCCESS;
 }
@@ -1171,6 +1169,7 @@ void efi_setup_loaded_image(struct efi_loaded_image *info, struct efi_object *ob
 	if (device_path)
 		info->device_handle = efi_dp_find_obj(device_path, NULL);
 
+	INIT_LIST_HEAD(&obj->protocols);
 	list_add_tail(&obj->link, &efi_obj_list);
 	/*
 	 * When asking for the device path interface, return
@@ -1648,8 +1647,7 @@ static efi_status_t EFIAPI efi_protocols_per_handle(void *handle,
 {
 	unsigned long buffer_size;
 	struct efi_object *efiobj;
-	unsigned long i, j;
-	struct list_head *lhandle;
+	struct list_head *protocol_handle;
 	efi_status_t r;
 
 	EFI_ENTRY("%p, %p, %p", handle, protocol_buffer,
@@ -1660,36 +1658,33 @@ static efi_status_t EFIAPI efi_protocols_per_handle(void *handle,
 
 	*protocol_buffer = NULL;
 	*protocol_buffer_count = 0;
-	list_for_each(lhandle, &efi_obj_list) {
-		efiobj = list_entry(lhandle, struct efi_object, link);
 
-		if (efiobj->handle != handle)
-			continue;
+	efiobj = efi_search_obj(handle);
+	if (!efiobj)
+		return EFI_EXIT(EFI_INVALID_PARAMETER);
 
-		/* Count protocols */
-		for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
-			if (efiobj->protocols[i].guid)
-				++*protocol_buffer_count;
-		}
-		/* Copy guids */
-		if (*protocol_buffer_count) {
-			buffer_size = sizeof(efi_guid_t *) *
-					*protocol_buffer_count;
-			r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES,
-					      buffer_size,
-					      (void **)protocol_buffer);
-			if (r != EFI_SUCCESS)
-				return EFI_EXIT(r);
-			j = 0;
-			for (i = 0; i < ARRAY_SIZE(efiobj->protocols); ++i) {
-				if (efiobj->protocols[i].guid) {
-					(*protocol_buffer)[j] = (void *)
-						efiobj->protocols[i].guid;
-					++j;
-				}
-			}
+	/* Count protocols */
+	list_for_each(protocol_handle, &efiobj->protocols) {
+		++*protocol_buffer_count;
+	}
+
+	/* Copy guids */
+	if (*protocol_buffer_count) {
+		size_t j = 0;
+
+		buffer_size = sizeof(efi_guid_t *) * *protocol_buffer_count;
+		r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES, buffer_size,
+				      (void **)protocol_buffer);
+		if (r != EFI_SUCCESS)
+			return EFI_EXIT(r);
+		list_for_each(protocol_handle, &efiobj->protocols) {
+			struct efi_handler *protocol;
+
+			protocol = list_entry(protocol_handle,
+					      struct efi_handler, link);
+			(*protocol_buffer)[j] = (void *)protocol->guid;
+			++j;
 		}
-		break;
 	}
 
 	return EFI_EXIT(EFI_SUCCESS);
diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c
index 1d6cf3122f..af8db40e19 100644
--- a/lib/efi_loader/efi_disk.c
+++ b/lib/efi_loader/efi_disk.c
@@ -224,6 +224,7 @@ static void efi_disk_add_dev(const char *name,
 		goto out_of_memory;
 
 	/* Hook up to the device list */
+	INIT_LIST_HEAD(&diskobj->parent.protocols);
 	list_add_tail(&diskobj->parent.link, &efi_obj_list);
 
 	/* Fill in object data */
diff --git a/lib/efi_loader/efi_gop.c b/lib/efi_loader/efi_gop.c
index 7b74d6ef33..498184d754 100644
--- a/lib/efi_loader/efi_gop.c
+++ b/lib/efi_loader/efi_gop.c
@@ -180,6 +180,7 @@ int efi_gop_register(void)
 	}
 
 	/* Hook up to the device list */
+	INIT_LIST_HEAD(&gopobj->parent.protocols);
 	list_add_tail(&gopobj->parent.link, &efi_obj_list);
 
 	/* Fill in object data */
diff --git a/lib/efi_loader/efi_net.c b/lib/efi_loader/efi_net.c
index 8b2f682351..74a67c5365 100644
--- a/lib/efi_loader/efi_net.c
+++ b/lib/efi_loader/efi_net.c
@@ -296,6 +296,7 @@ int efi_net_register(void)
 		goto out_of_memory;
 
 	/* Hook net up to the device list */
+	INIT_LIST_HEAD(&netobj->parent.protocols);
 	list_add_tail(&netobj->parent.link, &efi_obj_list);
 
 	/* Fill in object data */
-- 
2.14.2

[U-Boot] [PATCH v3 13/18] efi_selftest: compile without special compiler flags

[Heinrich Schuchardt]

As the selftest is not compiled as an EFI binary we do not
need special compiler flags.

This avoids the checkarmreloc error on vexpress_ca15_tc2.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	no change
v2
	no change
---
 lib/efi_selftest/Makefile | 25 -------------------------
 1 file changed, 25 deletions(-)

diff --git a/lib/efi_selftest/Makefile b/lib/efi_selftest/Makefile
index d280eca5c3..837e86228e 100644
--- a/lib/efi_selftest/Makefile
+++ b/lib/efi_selftest/Makefile
@@ -7,31 +7,6 @@
 # This file only gets included with CONFIG_EFI_LOADER set, so all
 # object inclusion implicitly depends on it
 
-CFLAGS_efi_selftest.o := $(CFLAGS_EFI)
-CFLAGS_REMOVE_efi_selftest.o := $(CFLAGS_NON_EFI)
-CFLAGS_efi_selftest_console.o := $(CFLAGS_EFI)
-CFLAGS_REMOVE_efi_selftest_console.o := $(CFLAGS_NON_EFI)
-CFLAGS_efi_selftest_devicepathe.o := $(CFLAGS_EFI)
-CFLAGS_REMOVE_efi_selftest_devicepath.o := $(CFLAGS_NON_EFI)
-CFLAGS_efi_selftest_events.o := $(CFLAGS_EFI)
-CFLAGS_REMOVE_efi_selftest_events.o := $(CFLAGS_NON_EFI)
-CFLAGS_efi_selftest_exitbootservices.o := $(CFLAGS_EFI)
-CFLAGS_REMOVE_efi_selftest_exitbootservices.o := $(CFLAGS_NON_EFI)
-CFLAGS_efi_selftest_gop.o := $(CFLAGS_EFI)
-CFLAGS_REMOVE_efi_selftest_gop.o := $(CFLAGS_NON_EFI)
-CFLAGS_efi_selftest_manageprotocols.o := $(CFLAGS_EFI)
-CFLAGS_REMOVE_efi_selftest_manageprotocols.o := $(CFLAGS_NON_EFI)
-CFLAGS_efi_selftest_snp.o := $(CFLAGS_EFI)
-CFLAGS_REMOVE_efi_selftest_snp.o := $(CFLAGS_NON_EFI)
-CFLAGS_efi_selftest_textoutput.o := $(CFLAGS_EFI)
-CFLAGS_REVMOE_efi_selftest_textoutput.o := $(CFLAGS_NON_EFI)
-CFLAGS_efi_selftest_tpl.o := $(CFLAGS_EFI)
-CFLAGS_REMOVE_efi_selftest_tpl.o := $(CFLAGS_NON_EFI)
-CFLAGS_efi_selftest_util.o := $(CFLAGS_EFI)
-CFLAGS_REMOVE_efi_selftest_util.o := $(CFLAGS_NON_EFI)
-CFLAGS_efi_selftest_watchdog.o := $(CFLAGS_EFI)
-CFLAGS_REMOVE_efi_selftest_watchdog.o := $(CFLAGS_NON_EFI)
-
 obj-$(CONFIG_CMD_BOOTEFI_SELFTEST) += \
 efi_selftest.o \
 efi_selftest_console.o \
-- 
2.14.2

[U-Boot] [PATCH v3 14/18] efi_selftest: add missing line feed

[Heinrich Schuchardt]

Add a missing line feed for an error message.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	no change
v2
	new patch
---
 lib/efi_selftest/efi_selftest.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/efi_selftest/efi_selftest.c b/lib/efi_selftest/efi_selftest.c
index 263b53f672..4e5a12c47c 100644
--- a/lib/efi_selftest/efi_selftest.c
+++ b/lib/efi_selftest/efi_selftest.c
@@ -239,7 +239,7 @@ efi_status_t EFIAPI efi_selftest(efi_handle_t image_handle,
 	ret = boottime->handle_protocol(image_handle, &efi_guid_loaded_image,
 					(void **)&loaded_image);
 	if (ret != EFI_SUCCESS) {
-		efi_st_error("Cannot open loaded image protocol");
+		efi_st_error("Cannot open loaded image protocol\n");
 		return ret;
 	}
 
-- 
2.14.2

[U-Boot] [PATCH v3 15/18] efi_loader: output load options in helloworld

[Heinrich Schuchardt]

We need to test if we pass a valid image handle when loading
and EFI application. This cannot be done in efi_selftest as
it is not loaded as an image.

So let's enhance helloworld a bit.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	no change
v2
	new patch
---
 lib/efi_loader/helloworld.c | 37 +++++++++++++++++++++++++++++++++++--
 1 file changed, 35 insertions(+), 2 deletions(-)

diff --git a/lib/efi_loader/helloworld.c b/lib/efi_loader/helloworld.c
index 77130a36dd..e59c24c788 100644
--- a/lib/efi_loader/helloworld.c
+++ b/lib/efi_loader/helloworld.c
@@ -5,19 +5,52 @@
  * Written by Simon Glass <sjg@chromium.org>
  *
  * SPDX-License-Identifier:     GPL-2.0+
+ *
+ * This program demonstrates calling a boottime service.
+ * It writes a greeting and the load options to the console.
  */
 
 #include <common.h>
 #include <efi_api.h>
 
+/*
+ * Entry point of the EFI application.
+ *
+ * @handle	handle of the loaded image
+ * @systable	system table
+ * @return	status code
+ */
 efi_status_t EFIAPI efi_main(efi_handle_t handle,
 			     struct efi_system_table *systable)
 {
 	struct efi_simple_text_output_protocol *con_out = systable->con_out;
 	struct efi_boot_services *boottime = systable->boottime;
+	struct efi_loaded_image *loaded_image;
+	const efi_guid_t loaded_image_guid = LOADED_IMAGE_GUID;
+	efi_status_t ret;
 
 	con_out->output_string(con_out, L"Hello, world!\n");
-	boottime->exit(handle, 0, 0, NULL);
 
-	return EFI_SUCCESS;
+	/* Get the loaded image protocol */
+	ret = boottime->handle_protocol(handle, &loaded_image_guid,
+					(void **)&loaded_image);
+	if (ret != EFI_SUCCESS) {
+		con_out->output_string(con_out,
+				       L"Cannot open loaded image protocol\n");
+		goto out;
+	}
+	/* Output the load options */
+	con_out->output_string(con_out, L"Load options: ");
+	if (loaded_image->load_options_size && loaded_image->load_options)
+		con_out->output_string(con_out,
+				       (u16 *)loaded_image->load_options);
+	else
+		con_out->output_string(con_out, L"<none>");
+	con_out->output_string(con_out, L"\n");
+
+out:
+	boottime->exit(handle, ret, 0, NULL);
+
+	/* We should never arrive here */
+	return ret;
 }
-- 
2.14.2

[U-Boot] [PATCH v3 16/18] test/py: check return code of helloworld

[Heinrich Schuchardt]

Check that helloworld.efi returns EFI_SUCCESS.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	no change
v2
	new patch
---
 test/py/tests/test_efi_loader.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/test/py/tests/test_efi_loader.py b/test/py/tests/test_efi_loader.py
index 4d391e13ef..906ef2feaa 100644
--- a/test/py/tests/test_efi_loader.py
+++ b/test/py/tests/test_efi_loader.py
@@ -154,6 +154,8 @@ def test_efi_helloworld_net(u_boot_console):
     output = u_boot_console.run_command('bootefi %x' % addr)
     expected_text = 'Hello, world'
     assert expected_text in output
+    expected_text = '## Application terminated, r = 0'
+    assert expected_text in output
 
 @pytest.mark.buildconfigspec('cmd_bootefi_hello')
 def test_efi_helloworld_builtin(u_boot_console):
-- 
2.14.2

[U-Boot] [PATCH v3 17/18] efi_loader: pass handle of loaded image

[Heinrich Schuchardt]

The handle of a loaded image is the value of the handle
member of the loaded image info object and not the
address of the loaded image info.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	no change
v2
	new patch
---
 cmd/bootefi.c                 | 7 ++++---
 lib/efi_loader/efi_boottime.c | 2 +-
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/cmd/bootefi.c b/cmd/bootefi.c
index 67855ba685..e6b8ec11d5 100644
--- a/cmd/bootefi.c
+++ b/cmd/bootefi.c
@@ -254,7 +254,8 @@ static efi_status_t do_bootefi_exec(void *efi, void *fdt,
 		dcache_disable();	/* flush cache before switch to EL2 */
 
 		/* Move into EL2 and keep running there */
-		armv8_switch_to_el2((ulong)entry, (ulong)&loaded_image_info,
+		armv8_switch_to_el2((ulong)entry,
+				    (ulong)&loaded_image_info_obj.handle,
 				    (ulong)&systab, 0, (ulong)efi_run_in_el2,
 				    ES_TO_AARCH64);
 
@@ -263,7 +264,7 @@ static efi_status_t do_bootefi_exec(void *efi, void *fdt,
 	}
 #endif
 
-	ret = efi_do_enter(&loaded_image_info, &systab, entry);
+	ret = efi_do_enter(loaded_image_info_obj.handle, &systab, entry);
 
 exit:
 	/* image has returned, loaded-image obj goes *poof*: */
@@ -350,7 +351,7 @@ static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		/* Transfer environment variable efi_selftest as load options */
 		set_load_options(&loaded_image_info, "efi_selftest");
 		/* Execute the test */
-		r = efi_selftest(&loaded_image_info, &systab);
+		r = efi_selftest(loaded_image_info_obj.handle, &systab);
 		efi_restore_gd();
 		free(loaded_image_info.load_options);
 		list_del(&loaded_image_info_obj.link);
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 54e9c27db1..0fb2848ecf 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -1317,7 +1317,7 @@ static efi_status_t EFIAPI efi_load_image(bool boot_policy,
 
 	info->system_table = &systab;
 	info->parent_handle = parent_image;
-	*image_handle = info;
+	*image_handle = obj->handle;
 
 	return EFI_EXIT(EFI_SUCCESS);
 }
-- 
2.14.2

[U-Boot] [PATCH v3 18/18] efi_loader: helper function to add EFI object to list

[Heinrich Schuchardt]

To avoid duplicate coding provide a helper function that
initializes an EFI object and adds it to the EFI object
list.

efi_exit() is the only place where we dereference a handle
to obtain a protocol interface. Add a comment to the function.

Suggested-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
v3
	no change
v2
	new patch
---
 include/efi_loader.h          |  2 ++
 lib/efi_loader/efi_boottime.c | 40 +++++++++++++++++++++++++++++++++-------
 lib/efi_loader/efi_disk.c     |  4 +---
 lib/efi_loader/efi_gop.c      |  4 +---
 lib/efi_loader/efi_net.c      |  4 +---
 5 files changed, 38 insertions(+), 16 deletions(-)

diff --git a/include/efi_loader.h b/include/efi_loader.h
index a73bbc1269..c0caabddb1 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -186,6 +186,8 @@ void efi_restore_gd(void);
 void efi_runtime_relocate(ulong offset, struct efi_mem_desc *map);
 /* Call this to set the current device name */
 void efi_set_bootdev(const char *dev, const char *devnr, const char *path);
+/* Add a new object to the object list. */
+void efi_add_handle(struct efi_object *obj);
 /* Create handle */
 efi_status_t efi_create_handle(void **handle);
 /* Call this to validate a handle and find the EFI object for it */
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 0fb2848ecf..a37fb25638 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -321,6 +321,23 @@ static efi_status_t EFIAPI efi_free_pool_ext(void *buffer)
 	return EFI_EXIT(r);
 }
 
+/*
+ * Add a new object to the object list.
+ *
+ * The protocols list is initialized.
+ * The object handle is set.
+ *
+ * @obj	object to be added
+ */
+void efi_add_handle(struct efi_object *obj)
+{
+	if (!obj)
+		return;
+	INIT_LIST_HEAD(&obj->protocols);
+	obj->handle = obj;
+	list_add_tail(&obj->link, &efi_obj_list);
+}
+
 /*
  * Create handle.
  *
@@ -337,11 +354,8 @@ efi_status_t efi_create_handle(void **handle)
 			      (void **)&obj);
 	if (r != EFI_SUCCESS)
 		return r;
-	memset(obj, 0, sizeof(struct efi_object));
-	obj->handle = obj;
-	INIT_LIST_HEAD(&obj->protocols);
-	list_add_tail(&obj->link, &efi_obj_list);
-	*handle = obj;
+	efi_add_handle(obj);
+	*handle = obj->handle;
 	return r;
 }
 
@@ -1163,14 +1177,15 @@ void efi_setup_loaded_image(struct efi_loaded_image *info, struct efi_object *ob
 {
 	efi_status_t ret;
 
+	/* Add internal object to object list */
+	efi_add_handle(obj);
+	/* efi_exit() assumes that the handle points to the info */
 	obj->handle = info;
 
 	info->file_path = file_path;
 	if (device_path)
 		info->device_handle = efi_dp_find_obj(device_path, NULL);
 
-	INIT_LIST_HEAD(&obj->protocols);
-	list_add_tail(&obj->link, &efi_obj_list);
 	/*
 	 * When asking for the device path interface, return
 	 * bootefi_device_path
@@ -1379,6 +1394,17 @@ static efi_status_t EFIAPI efi_exit(efi_handle_t image_handle,
 			efi_status_t exit_status, unsigned long exit_data_size,
 			int16_t *exit_data)
 {
+	/*
+	 * We require that the handle points to the original loaded
+	 * image protocol interface.
+	 *
+	 * For getting the longjmp address this is safer than locating
+	 * the protocol because the protocol may have been reinstalled
+	 * pointing to another memory location.
+	 *
+	 * TODO: We should call the unload procedure of the loaded
+	 *	 image protocol.
+	 */
 	struct efi_loaded_image *loaded_image_info = (void*)image_handle;
 
 	EFI_ENTRY("%p, %ld, %ld, %p", image_handle, exit_status,
diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c
index af8db40e19..68ba2cf7b2 100644
--- a/lib/efi_loader/efi_disk.c
+++ b/lib/efi_loader/efi_disk.c
@@ -224,13 +224,11 @@ static void efi_disk_add_dev(const char *name,
 		goto out_of_memory;
 
 	/* Hook up to the device list */
-	INIT_LIST_HEAD(&diskobj->parent.protocols);
-	list_add_tail(&diskobj->parent.link, &efi_obj_list);
+	efi_add_handle(&diskobj->parent);
 
 	/* Fill in object data */
 	diskobj->dp = efi_dp_from_part(desc, part);
 	diskobj->part = part;
-	diskobj->parent.handle = diskobj;
 	ret = efi_add_protocol(diskobj->parent.handle, &efi_block_io_guid,
 			       &diskobj->ops);
 	if (ret != EFI_SUCCESS)
diff --git a/lib/efi_loader/efi_gop.c b/lib/efi_loader/efi_gop.c
index 498184d754..3caddd5f84 100644
--- a/lib/efi_loader/efi_gop.c
+++ b/lib/efi_loader/efi_gop.c
@@ -180,11 +180,9 @@ int efi_gop_register(void)
 	}
 
 	/* Hook up to the device list */
-	INIT_LIST_HEAD(&gopobj->parent.protocols);
-	list_add_tail(&gopobj->parent.link, &efi_obj_list);
+	efi_add_handle(&gopobj->parent);
 
 	/* Fill in object data */
-	gopobj->parent.handle = &gopobj->ops;
 	ret = efi_add_protocol(gopobj->parent.handle, &efi_gop_guid,
 			       &gopobj->ops);
 	if (ret != EFI_SUCCESS) {
diff --git a/lib/efi_loader/efi_net.c b/lib/efi_loader/efi_net.c
index 74a67c5365..8c5d5b492c 100644
--- a/lib/efi_loader/efi_net.c
+++ b/lib/efi_loader/efi_net.c
@@ -296,11 +296,9 @@ int efi_net_register(void)
 		goto out_of_memory;
 
 	/* Hook net up to the device list */
-	INIT_LIST_HEAD(&netobj->parent.protocols);
-	list_add_tail(&netobj->parent.link, &efi_obj_list);
+	efi_add_handle(&netobj->parent);
 
 	/* Fill in object data */
-	netobj->parent.handle = &netobj->net;
 	r = efi_add_protocol(netobj->parent.handle, &efi_net_guid,
 			     &netobj->net);
 	if (r != EFI_SUCCESS)
-- 
2.14.2

[U-Boot] [PATCH v3 00/18] efi_loader: manage protocols in a linked list (v3)

[Simon Glass]

Hi,

On 26 November 2017 at 06:05, Heinrich Schuchardt <xypron.glpk@gmx.de> wrote:
> Up to now the protocols of an EFI handle where contained in an
> array of fixed size. With the patch series the protocols are
> managed in a linked list. This both saves memory and gives
> more flexibility.
>
> The LocateDevicePath boot service is implemented according
> to the UEFI specification.
>
> A unit test for the LocateDevicePath boot service and the
> device path to text protocol are added.
>
> Some bug fixes are provided.
>
> v3
>         Remove patch
>         efi_loader: efi_bootmgr: do not make hidden assignments
>         (A patch to add device path printing in printf() is
>         pending.)
>         Resubmit
>         efi_loader: helloworld.c: remove superfluous include
> v2
>         Enhance the helloworld example to check if the image
>         handle is passed corectly. Adjust the related py
>         test.
>
>         Use a helper function to initialize EFI objects.
>
>         Further minor bug fixes.
>
> Heinrich Schuchardt (18):
>   efi_loader: helloworld.c: remove superfluous include
>   efi_loader: size of media device path node represenation
>   efi_loader: efi_dp_str should print path not node
>   efi_loader: fix efi_convert_device_node_to_text
>   efi_loader: reimplement LocateDevicePath
>   efi_selftest: test EFI_DEVICE_PATH_TO_TEXT_PROTOCOL
>   efi_loader: efi_disk: use efi_add_protocol
>   efi_loader: efi_net: use efi_add_protocol
>   efi_loader: efi_gop: use efi_add_protocol
>   efi_loader: simplify efi_open_protocol
>   efi_loader: simplify find_obj
>   efi_loader: manage protocols in a linked list
>   efi_selftest: compile without special compiler flags
>   efi_selftest: add missing line feed
>   efi_loader: output load options in helloworld
>   test/py: check return code of helloworld
>   efi_loader: pass handle of loaded image
>   efi_loader: helper function to add EFI object to list
>

This series seems to have been hanging around for a while. Is it going
to be applied soon?

Regards,
Simon

[U-Boot] [PATCH v3 00/18] efi_loader: manage protocols in a linked list (v3)

[Alexander Graf]

On 11/27/2017 06:09 PM, Simon Glass wrote:
> Hi,
>
> On 26 November 2017 at 06:05, Heinrich Schuchardt <xypron.glpk@gmx.de> wrote:
>> Up to now the protocols of an EFI handle where contained in an
>> array of fixed size. With the patch series the protocols are
>> managed in a linked list. This both saves memory and gives
>> more flexibility.
>>
>> The LocateDevicePath boot service is implemented according
>> to the UEFI specification.
>>
>> A unit test for the LocateDevicePath boot service and the
>> device path to text protocol are added.
>>
>> Some bug fixes are provided.
>>
>> v3
>>          Remove patch
>>          efi_loader: efi_bootmgr: do not make hidden assignments
>>          (A patch to add device path printing in printf() is
>>          pending.)
>>          Resubmit
>>          efi_loader: helloworld.c: remove superfluous include
>> v2
>>          Enhance the helloworld example to check if the image
>>          handle is passed corectly. Adjust the related py
>>          test.
>>
>>          Use a helper function to initialize EFI objects.
>>
>>          Further minor bug fixes.
>>
>> Heinrich Schuchardt (18):
>>    efi_loader: helloworld.c: remove superfluous include
>>    efi_loader: size of media device path node represenation
>>    efi_loader: efi_dp_str should print path not node
>>    efi_loader: fix efi_convert_device_node_to_text
>>    efi_loader: reimplement LocateDevicePath
>>    efi_selftest: test EFI_DEVICE_PATH_TO_TEXT_PROTOCOL
>>    efi_loader: efi_disk: use efi_add_protocol
>>    efi_loader: efi_net: use efi_add_protocol
>>    efi_loader: efi_gop: use efi_add_protocol
>>    efi_loader: simplify efi_open_protocol
>>    efi_loader: simplify find_obj
>>    efi_loader: manage protocols in a linked list
>>    efi_selftest: compile without special compiler flags
>>    efi_selftest: add missing line feed
>>    efi_loader: output load options in helloworld
>>    test/py: check return code of helloworld
>>    efi_loader: pass handle of loaded image
>>    efi_loader: helper function to add EFI object to list
>>
> This series seems to have been hanging around for a while. Is it going
> to be applied soon?


Well, v3 was only one day old by the time you wrote :). But yes, on it.


Alex

[U-Boot] [PATCH v3 15/18] efi_loader: output load options in helloworld

[Florian Fainelli]

On 11/26/2017 05:05 AM, Heinrich Schuchardt wrote:
> We need to test if we pass a valid image handle when loading
> and EFI application. This cannot be done in efi_selftest as
> it is not loaded as an image.
> 
> So let's enhance helloworld a bit.
> 
> Reviewed-by: Simon Glass <sjg@chromium.org>
> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

This particular patch/commit bbf75dd9345d0b1a7ec7a50016547eb7c759b7af
("efi_loader: output load options in helloworld") was bisected and
causes the Lamobo_R1_defconfig build using the toolchain at [1] to fail
with:

/home/fainelli/work/toolchains/stbgcc-6.3-1.1/bin/arm-linux-ld.bfd:
error: required section '.got' not found in the linker script
/home/fainelli/work/toolchains/stbgcc-6.3-1.1/bin/arm-linux-ld.bfd:
final link failed: Invalid operation
scripts/Makefile.lib:409: recipe for target
'lib/efi_loader/helloworld_efi.so' failed
make[2]: *** [lib/efi_loader/helloworld_efi.so] Error 1
rm lib/efi_loader/helloworld.o
scripts/Makefile.build:425: recipe for target 'lib/efi_loader' failed
make[1]: *** [lib/efi_loader] Error 2

[1]: https://github.com/Broadcom/stbgcc-6.3/releases/tag/stbgcc-6.3-1.1

> ---
> v3
> 	no change
> v2
> 	new patch
> ---
>  lib/efi_loader/helloworld.c | 37 +++++++++++++++++++++++++++++++++++--
>  1 file changed, 35 insertions(+), 2 deletions(-)
> 
> diff --git a/lib/efi_loader/helloworld.c b/lib/efi_loader/helloworld.c
> index 77130a36dd..e59c24c788 100644
> --- a/lib/efi_loader/helloworld.c
> +++ b/lib/efi_loader/helloworld.c
> @@ -5,19 +5,52 @@
>   * Written by Simon Glass <sjg@chromium.org>
>   *
>   * SPDX-License-Identifier:     GPL-2.0+
> + *
> + * This program demonstrates calling a boottime service.
> + * It writes a greeting and the load options to the console.
>   */
>  
>  #include <common.h>
>  #include <efi_api.h>
>  
> +/*
> + * Entry point of the EFI application.
> + *
> + * @handle	handle of the loaded image
> + * @systable	system table
> + * @return	status code
> + */
>  efi_status_t EFIAPI efi_main(efi_handle_t handle,
>  			     struct efi_system_table *systable)
>  {
>  	struct efi_simple_text_output_protocol *con_out = systable->con_out;
>  	struct efi_boot_services *boottime = systable->boottime;
> +	struct efi_loaded_image *loaded_image;
> +	const efi_guid_t loaded_image_guid = LOADED_IMAGE_GUID;
> +	efi_status_t ret;
>  
>  	con_out->output_string(con_out, L"Hello, world!\n");
> -	boottime->exit(handle, 0, 0, NULL);
>  
> -	return EFI_SUCCESS;
> +	/* Get the loaded image protocol */
> +	ret = boottime->handle_protocol(handle, &loaded_image_guid,
> +					(void **)&loaded_image);
> +	if (ret != EFI_SUCCESS) {
> +		con_out->output_string(con_out,
> +				       L"Cannot open loaded image protocol\n");
> +		goto out;
> +	}
> +	/* Output the load options */
> +	con_out->output_string(con_out, L"Load options: ");
> +	if (loaded_image->load_options_size && loaded_image->load_options)
> +		con_out->output_string(con_out,
> +				       (u16 *)loaded_image->load_options);
> +	else
> +		con_out->output_string(con_out, L"<none>");
> +	con_out->output_string(con_out, L"\n");
> +
> +out:
> +	boottime->exit(handle, ret, 0, NULL);
> +
> +	/* We should never arrive here */
> +	return ret;
>  }
> 

-- 
Florian

[U-Boot] [PATCH v3 15/18] efi_loader: output load options in helloworld

[Heinrich Schuchardt]

On 12/10/2017 12:09 AM, Florian Fainelli wrote:
> 
> 
> On 11/26/2017 05:05 AM, Heinrich Schuchardt wrote:
>> We need to test if we pass a valid image handle when loading
>> and EFI application. This cannot be done in efi_selftest as
>> it is not loaded as an image.
>>
>> So let's enhance helloworld a bit.
>>
>> Reviewed-by: Simon Glass <sjg@chromium.org>
>> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
> 
> This particular patch/commit bbf75dd9345d0b1a7ec7a50016547eb7c759b7af
> ("efi_loader: output load options in helloworld") was bisected and
> causes the Lamobo_R1_defconfig build using the toolchain at [1] to fail
> with:
> 
> /home/fainelli/work/toolchains/stbgcc-6.3-1.1/bin/arm-linux-ld.bfd:
> error: required section '.got' not found in the linker script
> /home/fainelli/work/toolchains/stbgcc-6.3-1.1/bin/arm-linux-ld.bfd:
> final link failed: Invalid operation
> scripts/Makefile.lib:409: recipe for target
> 'lib/efi_loader/helloworld_efi.so' failed
> make[2]: *** [lib/efi_loader/helloworld_efi.so] Error 1
> rm lib/efi_loader/helloworld.o
> scripts/Makefile.build:425: recipe for target 'lib/efi_loader' failed
> make[1]: *** [lib/efi_loader] Error 2
> 
> [1]: https://github.com/Broadcom/stbgcc-6.3/releases/tag/stbgcc-6.3-1.1
> 

Isn't this fixed by
http://git.denx.de/?p=u-boot.git;a=commit;h=3bb74f9800cdc4cf10a87f2725242c2565256654
"efi_loader helloworld.efi: Fix building with -Os" ?

Best Regards

Heinrich

>> ---
>> v3
>> 	no change
>> v2
>> 	new patch
>> ---
>>   lib/efi_loader/helloworld.c | 37 +++++++++++++++++++++++++++++++++++--
>>   1 file changed, 35 insertions(+), 2 deletions(-)
>>
>> diff --git a/lib/efi_loader/helloworld.c b/lib/efi_loader/helloworld.c
>> index 77130a36dd..e59c24c788 100644
>> --- a/lib/efi_loader/helloworld.c
>> +++ b/lib/efi_loader/helloworld.c
>> @@ -5,19 +5,52 @@
>>    * Written by Simon Glass <sjg@chromium.org>
>>    *
>>    * SPDX-License-Identifier:     GPL-2.0+
>> + *
>> + * This program demonstrates calling a boottime service.
>> + * It writes a greeting and the load options to the console.
>>    */
>>   
>>   #include <common.h>
>>   #include <efi_api.h>
>>   
>> +/*
>> + * Entry point of the EFI application.
>> + *
>> + * @handle	handle of the loaded image
>> + * @systable	system table
>> + * @return	status code
>> + */
>>   efi_status_t EFIAPI efi_main(efi_handle_t handle,
>>   			     struct efi_system_table *systable)
>>   {
>>   	struct efi_simple_text_output_protocol *con_out = systable->con_out;
>>   	struct efi_boot_services *boottime = systable->boottime;
>> +	struct efi_loaded_image *loaded_image;
>> +	const efi_guid_t loaded_image_guid = LOADED_IMAGE_GUID;
>> +	efi_status_t ret;
>>   
>>   	con_out->output_string(con_out, L"Hello, world!\n");
>> -	boottime->exit(handle, 0, 0, NULL);
>>   
>> -	return EFI_SUCCESS;
>> +	/* Get the loaded image protocol */
>> +	ret = boottime->handle_protocol(handle, &loaded_image_guid,
>> +					(void **)&loaded_image);
>> +	if (ret != EFI_SUCCESS) {
>> +		con_out->output_string(con_out,
>> +				       L"Cannot open loaded image protocol\n");
>> +		goto out;
>> +	}
>> +	/* Output the load options */
>> +	con_out->output_string(con_out, L"Load options: ");
>> +	if (loaded_image->load_options_size && loaded_image->load_options)
>> +		con_out->output_string(con_out,
>> +				       (u16 *)loaded_image->load_options);
>> +	else
>> +		con_out->output_string(con_out, L"<none>");
>> +	con_out->output_string(con_out, L"\n");
>> +
>> +out:
>> +	boottime->exit(handle, ret, 0, NULL);
>> +
>> +	/* We should never arrive here */
>> +	return ret;
>>   }
>>
> 

[U-Boot] [PATCH v3 15/18] efi_loader: output load options in helloworld

[Florian Fainelli]

On 12/09/2017 10:40 PM, Heinrich Schuchardt wrote:
> On 12/10/2017 12:09 AM, Florian Fainelli wrote:
>>
>>
>> On 11/26/2017 05:05 AM, Heinrich Schuchardt wrote:
>>> We need to test if we pass a valid image handle when loading
>>> and EFI application. This cannot be done in efi_selftest as
>>> it is not loaded as an image.
>>>
>>> So let's enhance helloworld a bit.
>>>
>>> Reviewed-by: Simon Glass <sjg@chromium.org>
>>> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
>>
>> This particular patch/commit bbf75dd9345d0b1a7ec7a50016547eb7c759b7af
>> ("efi_loader: output load options in helloworld") was bisected and
>> causes the Lamobo_R1_defconfig build using the toolchain at [1] to fail
>> with:
>>
>> /home/fainelli/work/toolchains/stbgcc-6.3-1.1/bin/arm-linux-ld.bfd:
>> error: required section '.got' not found in the linker script
>> /home/fainelli/work/toolchains/stbgcc-6.3-1.1/bin/arm-linux-ld.bfd:
>> final link failed: Invalid operation
>> scripts/Makefile.lib:409: recipe for target
>> 'lib/efi_loader/helloworld_efi.so' failed
>> make[2]: *** [lib/efi_loader/helloworld_efi.so] Error 1
>> rm lib/efi_loader/helloworld.o
>> scripts/Makefile.build:425: recipe for target 'lib/efi_loader' failed
>> make[1]: *** [lib/efi_loader] Error 2
>>
>> [1]: https://github.com/Broadcom/stbgcc-6.3/releases/tag/stbgcc-6.3-1.1
>>
> 
> Isn't this fixed by
> http://git.denx.de/?p=u-boot.git;a=commit;h=3bb74f9800cdc4cf10a87f2725242c2565256654
> 
> "efi_loader helloworld.efi: Fix building with -Os" ?

Nope, my tree is at v2018.01-rc1-115-g335f7b1290ce which contains that
commit already.
-- 
Florian

[U-Boot] [PATCH v3 15/18] efi_loader: output load options in helloworld

[Alexander Graf]

On 10.12.17 23:20, Florian Fainelli wrote:
> 
> 
> On 12/09/2017 10:40 PM, Heinrich Schuchardt wrote:
>> On 12/10/2017 12:09 AM, Florian Fainelli wrote:
>>>
>>>
>>> On 11/26/2017 05:05 AM, Heinrich Schuchardt wrote:
>>>> We need to test if we pass a valid image handle when loading
>>>> and EFI application. This cannot be done in efi_selftest as
>>>> it is not loaded as an image.
>>>>
>>>> So let's enhance helloworld a bit.
>>>>
>>>> Reviewed-by: Simon Glass <sjg@chromium.org>
>>>> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
>>>
>>> This particular patch/commit bbf75dd9345d0b1a7ec7a50016547eb7c759b7af
>>> ("efi_loader: output load options in helloworld") was bisected and
>>> causes the Lamobo_R1_defconfig build using the toolchain at [1] to fail
>>> with:
>>>
>>> /home/fainelli/work/toolchains/stbgcc-6.3-1.1/bin/arm-linux-ld.bfd:
>>> error: required section '.got' not found in the linker script
>>> /home/fainelli/work/toolchains/stbgcc-6.3-1.1/bin/arm-linux-ld.bfd:
>>> final link failed: Invalid operation
>>> scripts/Makefile.lib:409: recipe for target
>>> 'lib/efi_loader/helloworld_efi.so' failed
>>> make[2]: *** [lib/efi_loader/helloworld_efi.so] Error 1
>>> rm lib/efi_loader/helloworld.o
>>> scripts/Makefile.build:425: recipe for target 'lib/efi_loader' failed
>>> make[1]: *** [lib/efi_loader] Error 2
>>>
>>> [1]: https://github.com/Broadcom/stbgcc-6.3/releases/tag/stbgcc-6.3-1.1
>>>
>>
>> Isn't this fixed by
>> http://git.denx.de/?p=u-boot.git;a=commit;h=3bb74f9800cdc4cf10a87f2725242c2565256654
>>
>> "efi_loader helloworld.efi: Fix building with -Os" ?
> 
> Nope, my tree is at v2018.01-rc1-115-g335f7b1290ce which contains that
> commit already.

Yeah, but the issue is the same :(

$ nm lib/efi_loader/helloworld.o
00000000 T efi_main
         U memcpy

Gcc simply optimizes the loaded_image_guid assignment into a memcpy()
and I can't find any way to prohibit it from doing that.

I guess the easiest way out of that mess is to just not do a dynamic
struct assignment but instead put loaded_image_guid explicitly into the
.rodata section.

I'll send a patch.


Alex