Merge branch 'next'

Signed-off-by: Tom Rini <[email protected]>

5 files changed, 77 insertions, 38 deletions

diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig
index 9989e3f384e..d20aaab6dba 100644
--- a/lib/efi_loader/Kconfig
+++ b/lib/efi_loader/Kconfig
@@ -272,6 +272,14 @@ config EFI_CAPSULE_MAX
 	  Select the max capsule index value used for capsule report
 	  variables. This value is used to create CapsuleMax variable.
 
+config EFI_CAPSULE_ESL_FILE
+	string "Path to the EFI Signature List File"
+	depends on EFI_CAPSULE_AUTHENTICATE
+	help
+	  Provides the path to the EFI Signature List file which will
+	  be embedded in the platform's device tree and used for
+	  capsule authentication at the time of capsule update.
+
 config EFI_DEVICE_PATH_TO_TEXT
 	bool "Device path to text protocol"
 	default y
diff --git a/lib/efi_loader/Makefile b/lib/efi_loader/Makefile
index 1a8c8d7cab5..8d31fc61c60 100644
--- a/lib/efi_loader/Makefile
+++ b/lib/efi_loader/Makefile
@@ -78,8 +78,8 @@ obj-$(CONFIG_EFI_ESRT) += efi_esrt.o
 obj-$(CONFIG_VIDEO) += efi_gop.o
 obj-$(CONFIG_BLK) += efi_disk.o
 obj-$(CONFIG_NETDEVICES) += efi_net.o
-obj-$(CONFIG_GENERATE_ACPI_TABLE) += efi_acpi.o
-obj-$(CONFIG_GENERATE_SMBIOS_TABLE) += efi_smbios.o
+obj-$(CONFIG_ACPI) += efi_acpi.o
+obj-$(CONFIG_SMBIOS) += efi_smbios.o
 obj-$(CONFIG_EFI_RNG_PROTOCOL) += efi_rng.o
 obj-$(CONFIG_EFI_TCG2_PROTOCOL) += efi_tcg2.o
 obj-$(CONFIG_EFI_RISCV_BOOT_PROTOCOL) += efi_riscv.o
diff --git a/lib/efi_loader/capsule_esl.dtsi.in b/lib/efi_loader/capsule_esl.dtsi.in
new file mode 100644
index 00000000000..61a9f2b25e9
--- /dev/null
+++ b/lib/efi_loader/capsule_esl.dtsi.in
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0+
+/**
+ * Devicetree file with the public key EFI Signature List(ESL)
+ * node. This file is used to generate the dtsi file to be
+ * included into the DTB.
+*/
+/ {
+	signature {
+		capsule-key = /incbin/("ESL_BIN_FILE");
+	};
+};
diff --git a/lib/efi_loader/efi_setup.c b/lib/efi_loader/efi_setup.c
index 58d4e134023..e6de685e879 100644
--- a/lib/efi_loader/efi_setup.c
+++ b/lib/efi_loader/efi_setup.c
@@ -321,16 +321,16 @@ efi_status_t efi_init_obj_list(void)
 	if (ret != EFI_SUCCESS)
 		goto out;
 #endif
-#ifdef CONFIG_GENERATE_ACPI_TABLE
-	ret = efi_acpi_register();
-	if (ret != EFI_SUCCESS)
-		goto out;
-#endif
-#ifdef CONFIG_GENERATE_SMBIOS_TABLE
-	ret = efi_smbios_register();
-	if (ret != EFI_SUCCESS)
-		goto out;
-#endif
+	if (IS_ENABLED(CONFIG_ACPI)) {
+		ret = efi_acpi_register();
+		if (ret != EFI_SUCCESS)
+			goto out;
+	}
+	if (IS_ENABLED(CONFIG_SMBIOS)) {
+		ret = efi_smbios_register();
+		if (ret != EFI_SUCCESS)
+			goto out;
+	}
 	ret = efi_watchdog_register();
 	if (ret != EFI_SUCCESS)
 		goto out;
diff --git a/lib/efi_loader/efi_smbios.c b/lib/efi_loader/efi_smbios.c
index 306c0bc54f9..48446f654d9 100644
--- a/lib/efi_loader/efi_smbios.c
+++ b/lib/efi_loader/efi_smbios.c
@@ -10,8 +10,14 @@
 #include <common.h>
 #include <efi_loader.h>
 #include <log.h>
+#include <malloc.h>
 #include <mapmem.h>
 #include <smbios.h>
+#include <linux/sizes.h>
+
+enum {
+	TABLE_SIZE	= SZ_4K,
+};
 
 /*
  * Install the SMBIOS table as a configuration table.
@@ -20,36 +26,50 @@
  */
 efi_status_t efi_smbios_register(void)
 {
-	/* Map within the low 32 bits, to allow for 32bit SMBIOS tables */
-	u64 dmi_addr = U32_MAX;
+	ulong addr;
 	efi_status_t ret;
-	void *dmi;
 
-	/* Reserve 4kiB page for SMBIOS */
-	ret = efi_allocate_pages(EFI_ALLOCATE_MAX_ADDRESS,
-				 EFI_RUNTIME_SERVICES_DATA, 1, &dmi_addr);
+	addr = gd->arch.smbios_start;
+	if (!addr) {
+		log_err("No SMBIOS tables to install\n");
+		return EFI_NOT_FOUND;
+	}
+
+	/* Mark space used for tables */
+	ret = efi_add_memory_map(addr, TABLE_SIZE, EFI_RUNTIME_SERVICES_DATA);
+	if (ret)
+		return ret;
+
+	log_debug("EFI using SMBIOS tables at %lx\n", addr);
+
+	/* Install SMBIOS information as configuration table */
+	return efi_install_configuration_table(&smbios_guid,
+					       map_sysmem(addr, 0));
+}
+
+static int install_smbios_table(void)
+{
+	ulong addr;
+	void *buf;
 
-	if (ret != EFI_SUCCESS) {
-		/* Could not find space in lowmem, use highmem instead */
-		ret = efi_allocate_pages(EFI_ALLOCATE_ANY_PAGES,
-					 EFI_RUNTIME_SERVICES_DATA, 1,
-					 &dmi_addr);
+	if (!IS_ENABLED(CONFIG_GENERATE_SMBIOS_TABLE) || IS_ENABLED(CONFIG_X86))
+		return 0;
 
-		if (ret != EFI_SUCCESS)
-			return ret;
+	/* Align the table to a 4KB boundary to keep EFI happy */
+	buf = memalign(SZ_4K, TABLE_SIZE);
+	if (!buf)
+		return log_msg_ret("mem", -ENOMEM);
+
+	addr = map_to_sysmem(buf);
+	if (!write_smbios_table(addr)) {
+		log_err("Failed to write SMBIOS table\n");
+		return log_msg_ret("smbios", -EINVAL);
 	}
 
-	/*
-	 * Generate SMBIOS tables - we know that efi_allocate_pages() returns
-	 * a 4k-aligned address, so it is safe to assume that
-	 * write_smbios_table() will write the table at that address.
-	 */
-	assert(!(dmi_addr & 0xf));
-	dmi = (void *)(uintptr_t)dmi_addr;
-	if (write_smbios_table(map_to_sysmem(dmi)))
-		/* Install SMBIOS information as configuration table */
-		return efi_install_configuration_table(&smbios_guid, dmi);
-	efi_free_pages(dmi_addr, 1);
-	log_err("Cannot create SMBIOS table\n");
-	return EFI_SUCCESS;
+	/* Make a note of where we put it */
+	log_debug("SMBIOS tables written to %lx\n", addr);
+	gd->arch.smbios_start = addr;
+
+	return 0;
 }
+EVENT_SPY_SIMPLE(EVT_LAST_STAGE_INIT, install_smbios_table);