Merge remote-tracking branch 'tip/x86/efi-mixed' into efi-for-mingo

Conflicts:
	arch/x86/kernel/setup.c
	arch/x86/platform/efi/efi.c
	arch/x86/platform/efi/efi_64.c

5 files changed, 1043 insertions, 222 deletions

diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index a7677babf946..5e1ba4fa3f79 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -19,10 +19,269 @@
 
 static efi_system_table_t *sys_table;
 
+static struct efi_config *efi_early;
+
+#define BOOT_SERVICES(bits)						\
+static void setup_boot_services##bits(struct efi_config *c)		\
+{									\
+	efi_system_table_##bits##_t *table;				\
+	efi_boot_services_##bits##_t *bt;				\
+									\
+	table = (typeof(table))sys_table;				\
+									\
+	c->text_output = table->con_out;				\
+									\
+	bt = (typeof(bt))(unsigned long)(table->boottime);		\
+									\
+	c->allocate_pool = bt->allocate_pool;				\
+	c->allocate_pages = bt->allocate_pages;				\
+	c->get_memory_map = bt->get_memory_map;				\
+	c->free_pool = bt->free_pool;					\
+	c->free_pages = bt->free_pages;					\
+	c->locate_handle = bt->locate_handle;				\
+	c->handle_protocol = bt->handle_protocol;			\
+	c->exit_boot_services = bt->exit_boot_services;			\
+}
+BOOT_SERVICES(32);
+BOOT_SERVICES(64);
 
-#include "../../../../drivers/firmware/efi/efi-stub-helper.c"
+static void efi_printk(efi_system_table_t *, char *);
+static void efi_char16_printk(efi_system_table_t *, efi_char16_t *);
+
+static efi_status_t
+__file_size32(void *__fh, efi_char16_t *filename_16,
+	      void **handle, u64 *file_sz)
+{
+	efi_file_handle_32_t *h, *fh = __fh;
+	efi_file_info_t *info;
+	efi_status_t status;
+	efi_guid_t info_guid = EFI_FILE_INFO_ID;
+	u32 info_sz;
+
+	status = efi_early->call((unsigned long)fh->open, fh, &h, filename_16,
+				 EFI_FILE_MODE_READ, (u64)0);
+	if (status != EFI_SUCCESS) {
+		efi_printk(sys_table, "Failed to open file: ");
+		efi_char16_printk(sys_table, filename_16);
+		efi_printk(sys_table, "\n");
+		return status;
+	}
+
+	*handle = h;
+
+	info_sz = 0;
+	status = efi_early->call((unsigned long)h->get_info, h, &info_guid,
+				 &info_sz, NULL);
+	if (status != EFI_BUFFER_TOO_SMALL) {
+		efi_printk(sys_table, "Failed to get file info size\n");
+		return status;
+	}
+
+grow:
+	status = efi_early->call(efi_early->allocate_pool, EFI_LOADER_DATA,
+				 info_sz, (void **)&info);
+	if (status != EFI_SUCCESS) {
+		efi_printk(sys_table, "Failed to alloc mem for file info\n");
+		return status;
+	}
+
+	status = efi_early->call((unsigned long)h->get_info, h, &info_guid,
+				 &info_sz, info);
+	if (status == EFI_BUFFER_TOO_SMALL) {
+		efi_early->call(efi_early->free_pool, info);
+		goto grow;
+	}
+
+	*file_sz = info->file_size;
+	efi_early->call(efi_early->free_pool, info);
+
+	if (status != EFI_SUCCESS)
+		efi_printk(sys_table, "Failed to get initrd info\n");
+
+	return status;
+}
+
+static efi_status_t
+__file_size64(void *__fh, efi_char16_t *filename_16,
+	      void **handle, u64 *file_sz)
+{
+	efi_file_handle_64_t *h, *fh = __fh;
+	efi_file_info_t *info;
+	efi_status_t status;
+	efi_guid_t info_guid = EFI_FILE_INFO_ID;
+	u32 info_sz;
+
+	status = efi_early->call((unsigned long)fh->open, fh, &h, filename_16,
+				 EFI_FILE_MODE_READ, (u64)0);
+	if (status != EFI_SUCCESS) {
+		efi_printk(sys_table, "Failed to open file: ");
+		efi_char16_printk(sys_table, filename_16);
+		efi_printk(sys_table, "\n");
+		return status;
+	}
+
+	*handle = h;
+
+	info_sz = 0;
+	status = efi_early->call((unsigned long)h->get_info, h, &info_guid,
+				 &info_sz, NULL);
+	if (status != EFI_BUFFER_TOO_SMALL) {
+		efi_printk(sys_table, "Failed to get file info size\n");
+		return status;
+	}
+
+grow:
+	status = efi_early->call(efi_early->allocate_pool, EFI_LOADER_DATA,
+				 info_sz, (void **)&info);
+	if (status != EFI_SUCCESS) {
+		efi_printk(sys_table, "Failed to alloc mem for file info\n");
+		return status;
+	}
+
+	status = efi_early->call((unsigned long)h->get_info, h, &info_guid,
+				 &info_sz, info);
+	if (status == EFI_BUFFER_TOO_SMALL) {
+		efi_early->call(efi_early->free_pool, info);
+		goto grow;
+	}
+
+	*file_sz = info->file_size;
+	efi_early->call(efi_early->free_pool, info);
+
+	if (status != EFI_SUCCESS)
+		efi_printk(sys_table, "Failed to get initrd info\n");
+
+	return status;
+}
+static efi_status_t
+efi_file_size(efi_system_table_t *sys_table, void *__fh,
+	      efi_char16_t *filename_16, void **handle, u64 *file_sz)
+{
+	if (efi_early->is64)
+		return __file_size64(__fh, filename_16, handle, file_sz);
+
+	return __file_size32(__fh, filename_16, handle, file_sz);
+}
+
+static inline efi_status_t
+efi_file_read(void *__fh, void *handle, unsigned long *size, void *addr)
+{
+	unsigned long func;
+
+	if (efi_early->is64) {
+		efi_file_handle_64_t *fh = __fh;
+
+		func = (unsigned long)fh->read;
+		return efi_early->call(func, handle, size, addr);
+	} else {
+		efi_file_handle_32_t *fh = __fh;
+
+		func = (unsigned long)fh->read;
+		return efi_early->call(func, handle, size, addr);
+	}
+}
+
+static inline efi_status_t efi_file_close(void *__fh, void *handle)
+{
+	if (efi_early->is64) {
+		efi_file_handle_64_t *fh = __fh;
+
+		return efi_early->call((unsigned long)fh->close, handle);
+	} else {
+		efi_file_handle_32_t *fh = __fh;
+
+		return efi_early->call((unsigned long)fh->close, handle);
+	}
+}
+
+static inline efi_status_t __open_volume32(void *__image, void **__fh)
+{
+	efi_file_io_interface_t *io;
+	efi_loaded_image_32_t *image = __image;
+	efi_file_handle_32_t *fh;
+	efi_guid_t fs_proto = EFI_FILE_SYSTEM_GUID;
+	efi_status_t status;
+	void *handle = (void *)(unsigned long)image->device_handle;
+	unsigned long func;
+
+	status = efi_early->call(efi_early->handle_protocol, handle,
+				 &fs_proto, (void **)&io);
+	if (status != EFI_SUCCESS) {
+		efi_printk(sys_table, "Failed to handle fs_proto\n");
+		return status;
+	}
+
+	func = (unsigned long)io->open_volume;
+	status = efi_early->call(func, io, &fh);
+	if (status != EFI_SUCCESS)
+		efi_printk(sys_table, "Failed to open volume\n");
+
+	*__fh = fh;
+	return status;
+}
+
+static inline efi_status_t __open_volume64(void *__image, void **__fh)
+{
+	efi_file_io_interface_t *io;
+	efi_loaded_image_64_t *image = __image;
+	efi_file_handle_64_t *fh;
+	efi_guid_t fs_proto = EFI_FILE_SYSTEM_GUID;
+	efi_status_t status;
+	void *handle = (void *)(unsigned long)image->device_handle;
+	unsigned long func;
+
+	status = efi_early->call(efi_early->handle_protocol, handle,
+				 &fs_proto, (void **)&io);
+	if (status != EFI_SUCCESS) {
+		efi_printk(sys_table, "Failed to handle fs_proto\n");
+		return status;
+	}
+
+	func = (unsigned long)io->open_volume;
+	status = efi_early->call(func, io, &fh);
+	if (status != EFI_SUCCESS)
+		efi_printk(sys_table, "Failed to open volume\n");
+
+	*__fh = fh;
+	return status;
+}
+
+static inline efi_status_t
+efi_open_volume(efi_system_table_t *sys_table, void *__image, void **__fh)
+{
+	if (efi_early->is64)
+		return __open_volume64(__image, __fh);
+
+	return __open_volume32(__image, __fh);
+}
+
+static void efi_char16_printk(efi_system_table_t *table, efi_char16_t *str)
+{
+	unsigned long output_string;
+	size_t offset;
+
+	if (efi_early->is64) {
+		struct efi_simple_text_output_protocol_64 *out;
+		u64 *func;
+
+		offset = offsetof(typeof(*out), output_string);
+		output_string = efi_early->text_output + offset;
+		func = (u64 *)output_string;
+
+		efi_early->call(*func, efi_early->text_output, str);
+	} else {
+		struct efi_simple_text_output_protocol_32 *out;
+		u32 *func;
+
+		offset = offsetof(typeof(*out), output_string);
+		output_string = efi_early->text_output + offset;
+		func = (u32 *)output_string;
 
+		efi_early->call(*func, efi_early->text_output, str);
+	}
+}
 
+#include "../../../../drivers/firmware/efi/efi-stub-helper.c"
 
 static void find_bits(unsigned long mask, u8 *pos, u8 *size)
 {
@@ -47,105 +306,99 @@ static void find_bits(unsigned long mask, u8 *pos, u8 *size)
 	*size = len;
 }
 
-static efi_status_t setup_efi_pci(struct boot_params *params)
+static efi_status_t
+__setup_efi_pci32(efi_pci_io_protocol_32 *pci, struct pci_setup_rom **__rom)
 {
-	efi_pci_io_protocol *pci;
+	struct pci_setup_rom *rom = NULL;
 	efi_status_t status;
-	void **pci_handle;
-	efi_guid_t pci_proto = EFI_PCI_IO_PROTOCOL_GUID;
-	unsigned long nr_pci, size = 0;
-	int i;
-	struct setup_data *data;
+	unsigned long size;
+	uint64_t attributes;
 
-	data = (struct setup_data *)(unsigned long)params->hdr.setup_data;
+	status = efi_early->call(pci->attributes, pci,
+				 EfiPciIoAttributeOperationGet, 0, 0,
+				 &attributes);
+	if (status != EFI_SUCCESS)
+		return status;
 
-	while (data && data->next)
-		data = (struct setup_data *)(unsigned long)data->next;
+	if (!pci->romimage || !pci->romsize)
+		return EFI_INVALID_PARAMETER;
 
-	status = efi_call_phys5(sys_table->boottime->locate_handle,
-				EFI_LOCATE_BY_PROTOCOL, &pci_proto,
-				NULL, &size, pci_handle);
+	size = pci->romsize + sizeof(*rom);
 
-	if (status == EFI_BUFFER_TOO_SMALL) {
-		status = efi_call_phys3(sys_table->boottime->allocate_pool,
-					EFI_LOADER_DATA, size, &pci_handle);
+	status = efi_early->call(efi_early->allocate_pool,
+				 EFI_LOADER_DATA, size, &rom);
 
-		if (status != EFI_SUCCESS)
-			return status;
+	if (status != EFI_SUCCESS)
+		return status;
 
-		status = efi_call_phys5(sys_table->boottime->locate_handle,
-					EFI_LOCATE_BY_PROTOCOL, &pci_proto,
-					NULL, &size, pci_handle);
-	}
+	memset(rom, 0, sizeof(*rom));
 
-	if (status != EFI_SUCCESS)
-		goto free_handle;
+	rom->data.type = SETUP_PCI;
+	rom->data.len = size - sizeof(struct setup_data);
+	rom->data.next = 0;
+	rom->pcilen = pci->romsize;
+	*__rom = rom;
 
-	nr_pci = size / sizeof(void *);
-	for (i = 0; i < nr_pci; i++) {
-		void *h = pci_handle[i];
-		uint64_t attributes;
-		struct pci_setup_rom *rom;
+	status = efi_early->call(pci->pci.read, pci, EfiPciIoWidthUint16,
+				 PCI_VENDOR_ID, 1, &(rom->vendor));
 
-		status = efi_call_phys3(sys_table->boottime->handle_protocol,
-					h, &pci_proto, &pci);
+	if (status != EFI_SUCCESS)
+		goto free_struct;
 
-		if (status != EFI_SUCCESS)
-			continue;
+	status = efi_early->call(pci->pci.read, pci, EfiPciIoWidthUint16,
+				 PCI_DEVICE_ID, 1, &(rom->devid));
 
-		if (!pci)
-			continue;
+	if (status != EFI_SUCCESS)
+		goto free_struct;
 
-#ifdef CONFIG_X86_64
-		status = efi_call_phys4(pci->attributes, pci,
-					EfiPciIoAttributeOperationGet, 0,
-					&attributes);
-#else
-		status = efi_call_phys5(pci->attributes, pci,
-					EfiPciIoAttributeOperationGet, 0, 0,
-					&attributes);
-#endif
-		if (status != EFI_SUCCESS)
-			continue;
+	status = efi_early->call(pci->get_location, pci, &(rom->segment),
+				 &(rom->bus), &(rom->device), &(rom->function));
 
-		if (!pci->romimage || !pci->romsize)
-			continue;
+	if (status != EFI_SUCCESS)
+		goto free_struct;
 
-		size = pci->romsize + sizeof(*rom);
+	memcpy(rom->romdata, pci->romimage, pci->romsize);
+	return status;
 
-		status = efi_call_phys3(sys_table->boottime->allocate_pool,
-				EFI_LOADER_DATA, size, &rom);
+free_struct:
+	efi_early->call(efi_early->free_pool, rom);
+	return status;
+}
 
-		if (status != EFI_SUCCESS)
-			continue;
+static efi_status_t
+setup_efi_pci32(struct boot_params *params, void **pci_handle,
+		unsigned long size)
+{
+	efi_pci_io_protocol_32 *pci = NULL;
+	efi_guid_t pci_proto = EFI_PCI_IO_PROTOCOL_GUID;
+	u32 *handles = (u32 *)(unsigned long)pci_handle;
+	efi_status_t status;
+	unsigned long nr_pci;
+	struct setup_data *data;
+	int i;
 
-		rom->data.type = SETUP_PCI;
-		rom->data.len = size - sizeof(struct setup_data);
-		rom->data.next = 0;
-		rom->pcilen = pci->romsize;
+	data = (struct setup_data *)(unsigned long)params->hdr.setup_data;
 
-		status = efi_call_phys5(pci->pci.read, pci,
-					EfiPciIoWidthUint16, PCI_VENDOR_ID,
-					1, &(rom->vendor));
+	while (data && data->next)
+		data = (struct setup_data *)(unsigned long)data->next;
 
-		if (status != EFI_SUCCESS)
-			goto free_struct;
+	nr_pci = size / sizeof(u32);
+	for (i = 0; i < nr_pci; i++) {
+		struct pci_setup_rom *rom = NULL;
+		u32 h = handles[i];
 
-		status = efi_call_phys5(pci->pci.read, pci,
-					EfiPciIoWidthUint16, PCI_DEVICE_ID,
-					1, &(rom->devid));
+		status = efi_early->call(efi_early->handle_protocol, h,
+					 &pci_proto, (void **)&pci);
 
 		if (status != EFI_SUCCESS)
-			goto free_struct;
+			continue;
 
-		status = efi_call_phys5(pci->get_location, pci,
-					&(rom->segment), &(rom->bus),
-					&(rom->device), &(rom->function));
+		if (!pci)
+			continue;
 
+		status = __setup_efi_pci32(pci, &rom);
 		if (status != EFI_SUCCESS)
-			goto free_struct;
-
-		memcpy(rom->romdata, pci->romimage, pci->romsize);
+			continue;
 
 		if (data)
 			data->next = (unsigned long)rom;
@@ -154,105 +407,157 @@ static efi_status_t setup_efi_pci(struct boot_params *params)
 
 		data = (struct setup_data *)rom;
 
-		continue;
-	free_struct:
-		efi_call_phys1(sys_table->boottime->free_pool, rom);
 	}
 
-free_handle:
-	efi_call_phys1(sys_table->boottime->free_pool, pci_handle);
 	return status;
 }
 
-/*
- * See if we have Graphics Output Protocol
- */
-static efi_status_t setup_gop(struct screen_info *si, efi_guid_t *proto,
-			      unsigned long size)
+static efi_status_t
+__setup_efi_pci64(efi_pci_io_protocol_64 *pci, struct pci_setup_rom **__rom)
 {
-	struct efi_graphics_output_protocol *gop, *first_gop;
-	struct efi_pixel_bitmask pixel_info;
-	unsigned long nr_gops;
+	struct pci_setup_rom *rom;
 	efi_status_t status;
-	void **gop_handle;
-	u16 width, height;
-	u32 fb_base, fb_size;
-	u32 pixels_per_scan_line;
-	int pixel_format;
-	int i;
+	unsigned long size;
+	uint64_t attributes;
 
-	status = efi_call_phys3(sys_table->boottime->allocate_pool,
-				EFI_LOADER_DATA, size, &gop_handle);
+	status = efi_early->call(pci->attributes, pci,
+				 EfiPciIoAttributeOperationGet, 0,
+				 &attributes);
 	if (status != EFI_SUCCESS)
 		return status;
 
-	status = efi_call_phys5(sys_table->boottime->locate_handle,
-				EFI_LOCATE_BY_PROTOCOL, proto,
-				NULL, &size, gop_handle);
+	if (!pci->romimage || !pci->romsize)
+		return EFI_INVALID_PARAMETER;
+
+	size = pci->romsize + sizeof(*rom);
+
+	status = efi_early->call(efi_early->allocate_pool,
+				 EFI_LOADER_DATA, size, &rom);
+
 	if (status != EFI_SUCCESS)
-		goto free_handle;
+		return status;
 
-	first_gop = NULL;
+	rom->data.type = SETUP_PCI;
+	rom->data.len = size - sizeof(struct setup_data);
+	rom->data.next = 0;
+	rom->pcilen = pci->romsize;
+	*__rom = rom;
 
-	nr_gops = size / sizeof(void *);
-	for (i = 0; i < nr_gops; i++) {
-		struct efi_graphics_output_mode_info *info;
-		efi_guid_t conout_proto = EFI_CONSOLE_OUT_DEVICE_GUID;
-		bool conout_found = false;
-		void *dummy;
-		void *h = gop_handle[i];
+	status = efi_early->call(pci->pci.read, pci, EfiPciIoWidthUint16,
+				 PCI_VENDOR_ID, 1, &(rom->vendor));
+
+	if (status != EFI_SUCCESS)
+		goto free_struct;
+
+	status = efi_early->call(pci->pci.read, pci, EfiPciIoWidthUint16,
+				 PCI_DEVICE_ID, 1, &(rom->devid));
+
+	if (status != EFI_SUCCESS)
+		goto free_struct;
+
+	status = efi_early->call(pci->get_location, pci, &(rom->segment),
+				 &(rom->bus), &(rom->device), &(rom->function));
+
+	if (status != EFI_SUCCESS)
+		goto free_struct;
+
+	memcpy(rom->romdata, pci->romimage, pci->romsize);
+	return status;
+
+free_struct:
+	efi_early->call(efi_early->free_pool, rom);
+	return status;
+
+}
+
+static efi_status_t
+setup_efi_pci64(struct boot_params *params, void **pci_handle,
+		unsigned long size)
+{
+	efi_pci_io_protocol_64 *pci = NULL;
+	efi_guid_t pci_proto = EFI_PCI_IO_PROTOCOL_GUID;
+	u64 *handles = (u64 *)(unsigned long)pci_handle;
+	efi_status_t status;
+	unsigned long nr_pci;
+	struct setup_data *data;
+	int i;
+
+	data = (struct setup_data *)(unsigned long)params->hdr.setup_data;
+
+	while (data && data->next)
+		data = (struct setup_data *)(unsigned long)data->next;
+
+	nr_pci = size / sizeof(u64);
+	for (i = 0; i < nr_pci; i++) {
+		struct pci_setup_rom *rom = NULL;
+		u64 h = handles[i];
+
+		status = efi_early->call(efi_early->handle_protocol, h,
+					 &pci_proto, (void **)&pci);
 
-		status = efi_call_phys3(sys_table->boottime->handle_protocol,
-					h, proto, &gop);
 		if (status != EFI_SUCCESS)
 			continue;
 
-		status = efi_call_phys3(sys_table->boottime->handle_protocol,
-					h, &conout_proto, &dummy);
+		if (!pci)
+			continue;
 
-		if (status == EFI_SUCCESS)
-			conout_found = true;
+		status = __setup_efi_pci64(pci, &rom);
+		if (status != EFI_SUCCESS)
+			continue;
 
-		status = efi_call_phys4(gop->query_mode, gop,
-					gop->mode->mode, &size, &info);
-		if (status == EFI_SUCCESS && (!first_gop || conout_found)) {
-			/*
-			 * Systems that use the UEFI Console Splitter may
-			 * provide multiple GOP devices, not all of which are
-			 * backed by real hardware. The workaround is to search
-			 * for a GOP implementing the ConOut protocol, and if
-			 * one isn't found, to just fall back to the first GOP.
-			 */
-			width = info->horizontal_resolution;
-			height = info->vertical_resolution;
-			fb_base = gop->mode->frame_buffer_base;
-			fb_size = gop->mode->frame_buffer_size;
-			pixel_format = info->pixel_format;
-			pixel_info = info->pixel_information;
-			pixels_per_scan_line = info->pixels_per_scan_line;
+		if (data)
+			data->next = (unsigned long)rom;
+		else
+			params->hdr.setup_data = (unsigned long)rom;
+
+		data = (struct setup_data *)rom;
 
-			/*
-			 * Once we've found a GOP supporting ConOut,
-			 * don't bother looking any further.
-			 */
-			first_gop = gop;
-			if (conout_found)
-				break;
-		}
 	}
 
-	/* Did we find any GOPs? */
-	if (!first_gop)
+	return status;
+}
+
+static efi_status_t setup_efi_pci(struct boot_params *params)
+{
+	efi_status_t status;
+	void **pci_handle = NULL;
+	efi_guid_t pci_proto = EFI_PCI_IO_PROTOCOL_GUID;
+	unsigned long size = 0;
+
+	status = efi_early->call(efi_early->locate_handle,
+				 EFI_LOCATE_BY_PROTOCOL,
+				 &pci_proto, NULL, &size, pci_handle);
+
+	if (status == EFI_BUFFER_TOO_SMALL) {
+		status = efi_early->call(efi_early->allocate_pool,
+					 EFI_LOADER_DATA,
+					 size, (void **)&pci_handle);
+
+		if (status != EFI_SUCCESS)
+			return status;
+
+		status = efi_early->call(efi_early->locate_handle,
+					 EFI_LOCATE_BY_PROTOCOL, &pci_proto,
+					 NULL, &size, pci_handle);
+	}
+
+	if (status != EFI_SUCCESS)
 		goto free_handle;
 
-	/* EFI framebuffer */
-	si->orig_video_isVGA = VIDEO_TYPE_EFI;
+	if (efi_early->is64)
+		status = setup_efi_pci64(params, pci_handle, size);
+	else
+		status = setup_efi_pci32(params, pci_handle, size);
 
-	si->lfb_width = width;
-	si->lfb_height = height;
-	si->lfb_base = fb_base;
-	si->pages = 1;
+free_handle:
+	efi_early->call(efi_early->free_pool, pci_handle);
+	return status;
+}
 
+static void
+setup_pixel_info(struct screen_info *si, u32 pixels_per_scan_line,
+		 struct efi_pixel_bitmask pixel_info, int pixel_format)
+{
 	if (pixel_format == PIXEL_RGB_RESERVED_8BIT_PER_COLOR) {
 		si->lfb_depth = 32;
 		si->lfb_linelength = pixels_per_scan_line * 4;
@@ -297,62 +602,321 @@ static efi_status_t setup_gop(struct screen_info *si, efi_guid_t *proto,
 		si->rsvd_size = 0;
 		si->rsvd_pos = 0;
 	}
+}
+
+static efi_status_t
+__gop_query32(struct efi_graphics_output_protocol_32 *gop32,
+	      struct efi_graphics_output_mode_info **info,
+	      unsigned long *size, u32 *fb_base)
+{
+	struct efi_graphics_output_protocol_mode_32 *mode;
+	efi_status_t status;
+	unsigned long m;
+
+	m = gop32->mode;
+	mode = (struct efi_graphics_output_protocol_mode_32 *)m;
+
+	status = efi_early->call(gop32->query_mode, gop32,
+				 mode->mode, size, info);
+	if (status != EFI_SUCCESS)
+		return status;
+
+	*fb_base = mode->frame_buffer_base;
+	return status;
+}
+
+static efi_status_t
+setup_gop32(struct screen_info *si, efi_guid_t *proto,
+	    unsigned long size, void **gop_handle)
+{
+	struct efi_graphics_output_protocol_32 *gop32, *first_gop;
+	unsigned long nr_gops;
+	u16 width, height;
+	u32 pixels_per_scan_line;
+	u32 fb_base;
+	struct efi_pixel_bitmask pixel_info;
+	int pixel_format;
+	efi_status_t status;
+	u32 *handles = (u32 *)(unsigned long)gop_handle;
+	int i;
+
+	first_gop = NULL;
+	gop32 = NULL;
+
+	nr_gops = size / sizeof(u32);
+	for (i = 0; i < nr_gops; i++) {
+		struct efi_graphics_output_mode_info *info = NULL;
+		efi_guid_t conout_proto = EFI_CONSOLE_OUT_DEVICE_GUID;
+		bool conout_found = false;
+		void *dummy = NULL;
+		u32 h = handles[i];
+
+		status = efi_early->call(efi_early->handle_protocol, h,
+					 proto, (void **)&gop32);
+		if (status != EFI_SUCCESS)
+			continue;
+
+		status = efi_early->call(efi_early->handle_protocol, h,
+					 &conout_proto, &dummy);
+		if (status == EFI_SUCCESS)
+			conout_found = true;
+
+		status = __gop_query32(gop32, &info, &size, &fb_base);
+		if (status == EFI_SUCCESS && (!first_gop || conout_found)) {
+			/*
+			 * Systems that use the UEFI Console Splitter may
+			 * provide multiple GOP devices, not all of which are
+			 * backed by real hardware. The workaround is to search
+			 * for a GOP implementing the ConOut protocol, and if
+			 * one isn't found, to just fall back to the first GOP.
+			 */
+			width = info->horizontal_resolution;
+			height = info->vertical_resolution;
+			pixel_format = info->pixel_format;
+			pixel_info = info->pixel_information;
+			pixels_per_scan_line = info->pixels_per_scan_line;
+
+			/*
+			 * Once we've found a GOP supporting ConOut,
+			 * don't bother looking any further.
+			 */
+			first_gop = gop32;
+			if (conout_found)
+				break;
+		}
+	}
+
+	/* Did we find any GOPs? */
+	if (!first_gop)
+		goto out;
+
+	/* EFI framebuffer */
+	si->orig_video_isVGA = VIDEO_TYPE_EFI;
+
+	si->lfb_width = width;
+	si->lfb_height = height;
+	si->lfb_base = fb_base;
+	si->pages = 1;
+
+	setup_pixel_info(si, pixels_per_scan_line, pixel_info, pixel_format);
 
 	si->lfb_size = si->lfb_linelength * si->lfb_height;
 
 	si->capabilities |= VIDEO_CAPABILITY_SKIP_QUIRKS;
+out:
+	return status;
+}
 
-free_handle:
-	efi_call_phys1(sys_table->boottime->free_pool, gop_handle);
+static efi_status_t
+__gop_query64(struct efi_graphics_output_protocol_64 *gop64,
+	      struct efi_graphics_output_mode_info **info,
+	      unsigned long *size, u32 *fb_base)
+{
+	struct efi_graphics_output_protocol_mode_64 *mode;
+	efi_status_t status;
+	unsigned long m;
+
+	m = gop64->mode;
+	mode = (struct efi_graphics_output_protocol_mode_64 *)m;
+
+	status = efi_early->call(gop64->query_mode, gop64,
+				 mode->mode, size, info);
+	if (status != EFI_SUCCESS)
+		return status;
+
+	*fb_base = mode->frame_buffer_base;
+	return status;
+}
+
+static efi_status_t
+setup_gop64(struct screen_info *si, efi_guid_t *proto,
+	    unsigned long size, void **gop_handle)
+{
+	struct efi_graphics_output_protocol_64 *gop64, *first_gop;
+	unsigned long nr_gops;
+	u16 width, height;
+	u32 pixels_per_scan_line;
+	u32 fb_base;
+	struct efi_pixel_bitmask pixel_info;
+	int pixel_format;
+	efi_status_t status;
+	u64 *handles = (u64 *)(unsigned long)gop_handle;
+	int i;
+
+	first_gop = NULL;
+	gop64 = NULL;
+
+	nr_gops = size / sizeof(u64);
+	for (i = 0; i < nr_gops; i++) {
+		struct efi_graphics_output_mode_info *info = NULL;
+		efi_guid_t conout_proto = EFI_CONSOLE_OUT_DEVICE_GUID;
+		bool conout_found = false;
+		void *dummy = NULL;
+		u64 h = handles[i];
+
+		status = efi_early->call(efi_early->handle_protocol, h,
+					 proto, (void **)&gop64);
+		if (status != EFI_SUCCESS)
+			continue;
+
+		status = efi_early->call(efi_early->handle_protocol, h,
+					 &conout_proto, &dummy);
+		if (status == EFI_SUCCESS)
+			conout_found = true;
+
+		status = __gop_query64(gop64, &info, &size, &fb_base);
+		if (status == EFI_SUCCESS && (!first_gop || conout_found)) {
+			/*
+			 * Systems that use the UEFI Console Splitter may
+			 * provide multiple GOP devices, not all of which are
+			 * backed by real hardware. The workaround is to search
+			 * for a GOP implementing the ConOut protocol, and if
+			 * one isn't found, to just fall back to the first GOP.
+			 */
+			width = info->horizontal_resolution;
+			height = info->vertical_resolution;
+			pixel_format = info->pixel_format;
+			pixel_info = info->pixel_information;
+			pixels_per_scan_line = info->pixels_per_scan_line;
+
+			/*
+			 * Once we've found a GOP supporting ConOut,
+			 * don't bother looking any further.
+			 */
+			first_gop = gop64;
+			if (conout_found)
+				break;
+		}
+	}
+
+	/* Did we find any GOPs? */
+	if (!first_gop)
+		goto out;
+
+	/* EFI framebuffer */
+	si->orig_video_isVGA = VIDEO_TYPE_EFI;
+
+	si->lfb_width = width;
+	si->lfb_height = height;
+	si->lfb_base = fb_base;
+	si->pages = 1;
+
+	setup_pixel_info(si, pixels_per_scan_line, pixel_info, pixel_format);
+
+	si->lfb_size = si->lfb_linelength * si->lfb_height;
+
+	si->capabilities |= VIDEO_CAPABILITY_SKIP_QUIRKS;
+out:
 	return status;
 }
 
 /*
- * See if we have Universal Graphics Adapter (UGA) protocol
+ * See if we have Graphics Output Protocol
  */
-static efi_status_t setup_uga(struct screen_info *si, efi_guid_t *uga_proto,
+static efi_status_t setup_gop(struct screen_info *si, efi_guid_t *proto,
 			      unsigned long size)
 {
-	struct efi_uga_draw_protocol *uga, *first_uga;
-	unsigned long nr_ugas;
 	efi_status_t status;
-	u32 width, height;
-	void **uga_handle = NULL;
-	int i;
+	void **gop_handle = NULL;
 
-	status = efi_call_phys3(sys_table->boottime->allocate_pool,
-				EFI_LOADER_DATA, size, &uga_handle);
+	status = efi_early->call(efi_early->allocate_pool, EFI_LOADER_DATA,
+				 size, (void **)&gop_handle);
 	if (status != EFI_SUCCESS)
 		return status;
 
-	status = efi_call_phys5(sys_table->boottime->locate_handle,
-				EFI_LOCATE_BY_PROTOCOL, uga_proto,
-				NULL, &size, uga_handle);
+	status = efi_early->call(efi_early->locate_handle,
+				 EFI_LOCATE_BY_PROTOCOL,
+				 proto, NULL, &size, gop_handle);
 	if (status != EFI_SUCCESS)
 		goto free_handle;
 
+	if (efi_early->is64)
+		status = setup_gop64(si, proto, size, gop_handle);
+	else
+		status = setup_gop32(si, proto, size, gop_handle);
+
+free_handle:
+	efi_early->call(efi_early->free_pool, gop_handle);
+	return status;
+}
+
+static efi_status_t
+setup_uga32(void **uga_handle, unsigned long size, u32 *width, u32 *height)
+{
+	struct efi_uga_draw_protocol *uga = NULL, *first_uga;
+	efi_guid_t uga_proto = EFI_UGA_PROTOCOL_GUID;
+	unsigned long nr_ugas;
+	u32 *handles = (u32 *)uga_handle;;
+	efi_status_t status;
+	int i;
+
 	first_uga = NULL;
+	nr_ugas = size / sizeof(u32);
+	for (i = 0; i < nr_ugas; i++) {
+		efi_guid_t pciio_proto = EFI_PCI_IO_PROTOCOL_GUID;
+		u32 w, h, depth, refresh;
+		void *pciio;
+		u32 handle = handles[i];
 
-	nr_ugas = size / sizeof(void *);
+		status = efi_early->call(efi_early->handle_protocol, handle,
+					 &uga_proto, (void **)&uga);
+		if (status != EFI_SUCCESS)
+			continue;
+
+		efi_early->call(efi_early->handle_protocol, handle,
+				&pciio_proto, &pciio);
+
+		status = efi_early->call((unsigned long)uga->get_mode, uga,
+					 &w, &h, &depth, &refresh);
+		if (status == EFI_SUCCESS && (!first_uga || pciio)) {
+			*width = w;
+			*height = h;
+
+			/*
+			 * Once we've found a UGA supporting PCIIO,
+			 * don't bother looking any further.
+			 */
+			if (pciio)
+				break;
+
+			first_uga = uga;
+		}
+	}
+
+	return status;
+}
+
+static efi_status_t
+setup_uga64(void **uga_handle, unsigned long size, u32 *width, u32 *height)
+{
+	struct efi_uga_draw_protocol *uga = NULL, *first_uga;
+	efi_guid_t uga_proto = EFI_UGA_PROTOCOL_GUID;
+	unsigned long nr_ugas;
+	u64 *handles = (u64 *)uga_handle;;
+	efi_status_t status;
+	int i;
+
+	first_uga = NULL;
+	nr_ugas = size / sizeof(u64);
 	for (i = 0; i < nr_ugas; i++) {
 		efi_guid_t pciio_proto = EFI_PCI_IO_PROTOCOL_GUID;
-		void *handle = uga_handle[i];
 		u32 w, h, depth, refresh;
 		void *pciio;
+		u64 handle = handles[i];
 
-		status = efi_call_phys3(sys_table->boottime->handle_protocol,
-					handle, uga_proto, &uga);
+		status = efi_early->call(efi_early->handle_protocol, handle,
+					 &uga_proto, (void **)&uga);
 		if (status != EFI_SUCCESS)
 			continue;
 
-		efi_call_phys3(sys_table->boottime->handle_protocol,
-			       handle, &pciio_proto, &pciio);
+		efi_early->call(efi_early->handle_protocol, handle,
+				&pciio_proto, &pciio);
 
-		status = efi_call_phys5(uga->get_mode, uga, &w, &h,
-					&depth, &refresh);
+		status = efi_early->call((unsigned long)uga->get_mode, uga,
+					 &w, &h, &depth, &refresh);
 		if (status == EFI_SUCCESS && (!first_uga || pciio)) {
-			width = w;
-			height = h;
+			*width = w;
+			*height = h;
 
 			/*
 			 * Once we've found a UGA supporting PCIIO,
@@ -365,7 +929,39 @@ static efi_status_t setup_uga(struct screen_info *si, efi_guid_t *uga_proto,
 		}
 	}
 
-	if (!first_uga)
+	return status;
+}
+
+/*
+ * See if we have Universal Graphics Adapter (UGA) protocol
+ */
+static efi_status_t setup_uga(struct screen_info *si, efi_guid_t *uga_proto,
+			      unsigned long size)
+{
+	efi_status_t status;
+	u32 width, height;
+	void **uga_handle = NULL;
+
+	status = efi_early->call(efi_early->allocate_pool, EFI_LOADER_DATA,
+				 size, (void **)&uga_handle);
+	if (status != EFI_SUCCESS)
+		return status;
+
+	status = efi_early->call(efi_early->locate_handle,
+				 EFI_LOCATE_BY_PROTOCOL,
+				 uga_proto, NULL, &size, uga_handle);
+	if (status != EFI_SUCCESS)
+		goto free_handle;
+
+	height = 0;
+	width = 0;
+
+	if (efi_early->is64)
+		status = setup_uga64(uga_handle, size, &width, &height);
+	else
+		status = setup_uga32(uga_handle, size, &width, &height);
+
+	if (!width && !height)
 		goto free_handle;
 
 	/* EFI framebuffer */
@@ -384,9 +980,8 @@ static efi_status_t setup_uga(struct screen_info *si, efi_guid_t *uga_proto,
 	si->rsvd_size = 8;
 	si->rsvd_pos = 24;
 
-
 free_handle:
-	efi_call_phys1(sys_table->boottime->free_pool, uga_handle);
+	efi_early->call(efi_early->free_pool, uga_handle);
 	return status;
 }
 
@@ -404,29 +999,28 @@ void setup_graphics(struct boot_params *boot_params)
 	memset(si, 0, sizeof(*si));
 
 	size = 0;
-	status = efi_call_phys5(sys_table->boottime->locate_handle,
-				EFI_LOCATE_BY_PROTOCOL, &graphics_proto,
-				NULL, &size, gop_handle);
+	status = efi_early->call(efi_early->locate_handle,
+				 EFI_LOCATE_BY_PROTOCOL,
+				 &graphics_proto, NULL, &size, gop_handle);
 	if (status == EFI_BUFFER_TOO_SMALL)
 		status = setup_gop(si, &graphics_proto, size);
 
 	if (status != EFI_SUCCESS) {
 		size = 0;
-		status = efi_call_phys5(sys_table->boottime->locate_handle,
-					EFI_LOCATE_BY_PROTOCOL, &uga_proto,
-					NULL, &size, uga_handle);
+		status = efi_early->call(efi_early->locate_handle,
+					 EFI_LOCATE_BY_PROTOCOL,
+					 &uga_proto, NULL, &size, uga_handle);
 		if (status == EFI_BUFFER_TOO_SMALL)
 			setup_uga(si, &uga_proto, size);
 	}
 }
 
-
 /*
  * Because the x86 boot code expects to be passed a boot_params we
  * need to create one ourselves (usually the bootloader would create
  * one for us).
  */
-struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
+struct boot_params *make_boot_params(struct efi_config *c)
 {
 	struct boot_params *boot_params;
 	struct sys_desc_table *sdt;
@@ -434,7 +1028,7 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 	struct setup_header *hdr;
 	struct efi_info *efi;
 	efi_loaded_image_t *image;
-	void *options;
+	void *options, *handle;
 	efi_guid_t proto = LOADED_IMAGE_PROTOCOL_GUID;
 	int options_size = 0;
 	efi_status_t status;
@@ -445,14 +1039,21 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 	unsigned long ramdisk_addr;
 	unsigned long ramdisk_size;
 
-	sys_table = _table;
+	efi_early = c;
+	sys_table = (efi_system_table_t *)(unsigned long)efi_early->table;
+	handle = (void *)(unsigned long)efi_early->image_handle;
 
 	/* Check if we were booted by the EFI firmware */
 	if (sys_table->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE)
 		return NULL;
 
-	status = efi_call_phys3(sys_table->boottime->handle_protocol,
-				handle, &proto, (void *)&image);
+	if (efi_early->is64)
+		setup_boot_services64(efi_early);
+	else
+		setup_boot_services32(efi_early);
+
+	status = efi_early->call(efi_early->handle_protocol, handle,
+				 &proto, (void *)&image);
 	if (status != EFI_SUCCESS) {
 		efi_printk(sys_table, "Failed to get handle for LOADED_IMAGE_PROTOCOL\n");
 		return NULL;
@@ -641,14 +1242,13 @@ static efi_status_t alloc_e820ext(u32 nr_desc, struct setup_data **e820ext,
 		sizeof(struct e820entry) * nr_desc;
 
 	if (*e820ext) {
-		efi_call_phys1(sys_table->boottime->free_pool, *e820ext);
+		efi_early->call(efi_early->free_pool, *e820ext);
 		*e820ext = NULL;
 		*e820ext_size = 0;
 	}
 
-	status = efi_call_phys3(sys_table->boottime->allocate_pool,
-				EFI_LOADER_DATA, size, e820ext);
-
+	status = efi_early->call(efi_early->allocate_pool, EFI_LOADER_DATA,
+				 size, (void **)e820ext);
 	if (status == EFI_SUCCESS)
 		*e820ext_size = size;
 
@@ -656,12 +1256,13 @@ static efi_status_t alloc_e820ext(u32 nr_desc, struct setup_data **e820ext,
 }
 
 static efi_status_t exit_boot(struct boot_params *boot_params,
-			      void *handle)
+			      void *handle, bool is64)
 {
 	struct efi_info *efi = &boot_params->efi_info;
 	unsigned long map_sz, key, desc_size;
 	efi_memory_desc_t *mem_map;
 	struct setup_data *e820ext;
+	const char *signature;
 	__u32 e820ext_size;
 	__u32 nr_desc, prev_nr_desc;
 	efi_status_t status;
@@ -691,11 +1292,13 @@ get_map:
 		if (status != EFI_SUCCESS)
 			goto free_mem_map;
 
-		efi_call_phys1(sys_table->boottime->free_pool, mem_map);
+		efi_early->call(efi_early->free_pool, mem_map);
 		goto get_map; /* Allocated memory, get map again */
 	}
 
-	memcpy(&efi->efi_loader_signature, EFI_LOADER_SIGNATURE, sizeof(__u32));
+	signature = is64 ? EFI64_LOADER_SIGNATURE : EFI32_LOADER_SIGNATURE;
+	memcpy(&efi->efi_loader_signature, signature, sizeof(__u32));
+
 	efi->efi_systab = (unsigned long)sys_table;
 	efi->efi_memdesc_size = desc_size;
 	efi->efi_memdesc_version = desc_version;
@@ -708,8 +1311,7 @@ get_map:
 #endif
 
 	/* Might as well exit boot services now */
-	status = efi_call_phys2(sys_table->boottime->exit_boot_services,
-				handle, key);
+	status = efi_early->call(efi_early->exit_boot_services, handle, key);
 	if (status != EFI_SUCCESS) {
 		/*
 		 * ExitBootServices() will fail if any of the event
@@ -722,7 +1324,7 @@ get_map:
 			goto free_mem_map;
 
 		called_exit = true;
-		efi_call_phys1(sys_table->boottime->free_pool, mem_map);
+		efi_early->call(efi_early->free_pool, mem_map);
 		goto get_map;
 	}
 
@@ -736,23 +1338,31 @@ get_map:
 	return EFI_SUCCESS;
 
 free_mem_map:
-	efi_call_phys1(sys_table->boottime->free_pool, mem_map);
+	efi_early->call(efi_early->free_pool, mem_map);
 	return status;
 }
 
-
 /*
  * On success we return a pointer to a boot_params structure, and NULL
  * on failure.
  */
-struct boot_params *efi_main(void *handle, efi_system_table_t *_table,
+struct boot_params *efi_main(struct efi_config *c,
 			     struct boot_params *boot_params)
 {
-	struct desc_ptr *gdt;
+	struct desc_ptr *gdt = NULL;
 	efi_loaded_image_t *image;
 	struct setup_header *hdr = &boot_params->hdr;
 	efi_status_t status;
 	struct desc_struct *desc;
+	void *handle;
+	efi_system_table_t *_table;
+	bool is64;
+
+	efi_early = c;
+
+	_table = (efi_system_table_t *)(unsigned long)efi_early->table;
+	handle = (void *)(unsigned long)efi_early->image_handle;
+	is64 = efi_early->is64;
 
 	sys_table = _table;
 
@@ -760,13 +1370,17 @@ struct boot_params *efi_main(void *handle, efi_system_table_t *_table,
 	if (sys_table->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE)
 		goto fail;
 
+	if (is64)
+		setup_boot_services64(efi_early);
+	else
+		setup_boot_services32(efi_early);
+
 	setup_graphics(boot_params);
 
 	setup_efi_pci(boot_params);
 
-	status = efi_call_phys3(sys_table->boottime->allocate_pool,
-				EFI_LOADER_DATA, sizeof(*gdt),
-				(void **)&gdt);
+	status = efi_early->call(efi_early->allocate_pool, EFI_LOADER_DATA,
+				 sizeof(*gdt), (void **)&gdt);
 	if (status != EFI_SUCCESS) {
 		efi_printk(sys_table, "Failed to alloc mem for gdt structure\n");
 		goto fail;
@@ -797,7 +1411,7 @@ struct boot_params *efi_main(void *handle, efi_system_table_t *_table,
 		hdr->code32_start = bzimage_addr;
 	}
 
-	status = exit_boot(boot_params, handle);
+	status = exit_boot(boot_params, handle, is64);
 	if (status != EFI_SUCCESS)
 		goto fail;
 
diff --git a/arch/x86/boot/compressed/eboot.h b/arch/x86/boot/compressed/eboot.h
index 81b6b652b46a..c88c31ecad12 100644
--- a/arch/x86/boot/compressed/eboot.h
+++ b/arch/x86/boot/compressed/eboot.h
@@ -37,6 +37,24 @@ struct efi_graphics_output_mode_info {
 	u32 pixels_per_scan_line;
 } __packed;
 
+struct efi_graphics_output_protocol_mode_32 {
+	u32 max_mode;
+	u32 mode;
+	u32 info;
+	u32 size_of_info;
+	u64 frame_buffer_base;
+	u32 frame_buffer_size;
+} __packed;
+
+struct efi_graphics_output_protocol_mode_64 {
+	u32 max_mode;
+	u32 mode;
+	u64 info;
+	u64 size_of_info;
+	u64 frame_buffer_base;
+	u64 frame_buffer_size;
+} __packed;
+
 struct efi_graphics_output_protocol_mode {
 	u32 max_mode;
 	u32 mode;
@@ -46,6 +64,20 @@ struct efi_graphics_output_protocol_mode {
 	unsigned long frame_buffer_size;
 } __packed;
 
+struct efi_graphics_output_protocol_32 {
+	u32 query_mode;
+	u32 set_mode;
+	u32 blt;
+	u32 mode;
+};
+
+struct efi_graphics_output_protocol_64 {
+	u64 query_mode;
+	u64 set_mode;
+	u64 blt;
+	u64 mode;
+};
+
 struct efi_graphics_output_protocol {
 	void *query_mode;
 	unsigned long set_mode;
@@ -53,10 +85,38 @@ struct efi_graphics_output_protocol {
 	struct efi_graphics_output_protocol_mode *mode;
 };
 
+struct efi_uga_draw_protocol_32 {
+	u32 get_mode;
+	u32 set_mode;
+	u32 blt;
+};
+
+struct efi_uga_draw_protocol_64 {
+	u64 get_mode;
+	u64 set_mode;
+	u64 blt;
+};
+
 struct efi_uga_draw_protocol {
 	void *get_mode;
 	void *set_mode;
 	void *blt;
 };
 
+struct efi_config {
+	u64 image_handle;
+	u64 table;
+	u64 allocate_pool;
+	u64 allocate_pages;
+	u64 get_memory_map;
+	u64 free_pool;
+	u64 free_pages;
+	u64 locate_handle;
+	u64 handle_protocol;
+	u64 exit_boot_services;
+	u64 text_output;
+	efi_status_t (*call)(unsigned long, ...);
+	bool is64;
+} __packed;
+
 #endif /* BOOT_COMPRESSED_EBOOT_H */
diff --git a/arch/x86/boot/compressed/efi_stub_64.S b/arch/x86/boot/compressed/efi_stub_64.S
index cedc60de86eb..7ff3632806b1 100644
--- a/arch/x86/boot/compressed/efi_stub_64.S
+++ b/arch/x86/boot/compressed/efi_stub_64.S
@@ -1 +1,30 @@
+#include <asm/segment.h>
+#include <asm/msr.h>
+#include <asm/processor-flags.h>
+
 #include "../../platform/efi/efi_stub_64.S"
+
+#ifdef CONFIG_EFI_MIXED
+	.code64
+	.text
+ENTRY(efi64_thunk)
+	push	%rbp
+	push	%rbx
+
+	subq	$16, %rsp
+	leaq	efi_exit32(%rip), %rax
+	movl	%eax, 8(%rsp)
+	leaq	efi_gdt64(%rip), %rax
+	movl	%eax, 4(%rsp)
+	movl	%eax, 2(%rax)		/* Fixup the gdt base address */
+	leaq	efi32_boot_gdt(%rip), %rax
+	movl	%eax, (%rsp)
+
+	call	__efi64_thunk
+
+	addq	$16, %rsp
+	pop	%rbx
+	pop	%rbp
+	ret
+ENDPROC(efi64_thunk)
+#endif /* CONFIG_EFI_MIXED */
diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index 9116aac232c7..cccc05f0681c 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -42,26 +42,53 @@ ENTRY(startup_32)
 ENTRY(efi_pe_entry)
 	add	$0x4, %esp
 
+	call	1f
+1:	popl	%esi
+	subl	$1b, %esi
+
+	popl	%ecx
+	movl	%ecx, efi32_config(%esi)	/* Handle */
+	popl	%ecx
+	movl	%ecx, efi32_config+8(%esi)	/* EFI System table pointer */
+
+	/* Relocate efi_config->call() */
+	leal	efi32_config(%esi), %eax
+	add	%esi, 88(%eax)
+	pushl	%eax
+
 	call	make_boot_params
 	cmpl	$0, %eax
-	je	1f
-	movl	0x4(%esp), %esi
-	movl	(%esp), %ecx
+	je	fail
+	popl	%ecx
 	pushl	%eax
-	pushl	%esi
 	pushl	%ecx
-	sub	$0x4, %esp
+	jmp	2f		/* Skip efi_config initialization */
 
-ENTRY(efi_stub_entry)
+ENTRY(efi32_stub_entry)
 	add	$0x4, %esp
+	popl	%ecx
+	popl	%edx
+
+	call	1f
+1:	popl	%esi
+	subl	$1b, %esi
+
+	movl	%ecx, efi32_config(%esi)	/* Handle */
+	movl	%edx, efi32_config+8(%esi)	/* EFI System table pointer */
+
+	/* Relocate efi_config->call() */
+	leal	efi32_config(%esi), %eax
+	add	%esi, 88(%eax)
+	pushl	%eax
+2:
 	call	efi_main
 	cmpl	$0, %eax
 	movl	%eax, %esi
 	jne	2f
-1:
+fail:
 	/* EFI init failed, so hang. */
 	hlt
-	jmp	1b
+	jmp	fail
 2:
 	call	3f
 3:
@@ -202,6 +229,13 @@ relocated:
 	xorl	%ebx, %ebx
 	jmp	*%eax
 
+	.data
+efi32_config:
+	.fill 11,8,0
+	.long efi_call_phys
+	.long 0
+	.byte 0
+
 /*
  * Stack and heap for uncompression
  */
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index c5c1ae0997e7..4f40cddd025d 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -113,7 +113,8 @@ ENTRY(startup_32)
 	lgdt	gdt(%ebp)
 
 	/* Enable PAE mode */
-	movl	$(X86_CR4_PAE), %eax
+	movl	%cr4, %eax
+	orl	$X86_CR4_PAE, %eax
 	movl	%eax, %cr4
 
  /*
@@ -178,6 +179,13 @@ ENTRY(startup_32)
 	 */
 	pushl	$__KERNEL_CS
 	leal	startup_64(%ebp), %eax
+#ifdef CONFIG_EFI_MIXED
+	movl	efi32_config(%ebp), %ebx
+	cmp	$0, %ebx
+	jz	1f
+	leal	handover_entry(%ebp), %eax
+1:
+#endif
 	pushl	%eax
 
 	/* Enter paged protected Mode, activating Long Mode */
@@ -188,6 +196,30 @@ ENTRY(startup_32)
 	lret
 ENDPROC(startup_32)
 
+#ifdef CONFIG_EFI_MIXED
+	.org 0x190
+ENTRY(efi32_stub_entry)
+	add	$0x4, %esp		/* Discard return address */
+	popl	%ecx
+	popl	%edx
+	popl	%esi
+
+	leal	(BP_scratch+4)(%esi), %esp
+	call	1f
+1:	pop	%ebp
+	subl	$1b, %ebp
+
+	movl	%ecx, efi32_config(%ebp)
+	movl	%edx, efi32_config+8(%ebp)
+	sgdtl	efi32_boot_gdt(%ebp)
+
+	leal	efi32_config(%ebp), %eax
+	movl	%eax, efi_config(%ebp)
+
+	jmp	startup_32
+ENDPROC(efi32_stub_entry)
+#endif
+
 	.code64
 	.org 0x200
 ENTRY(startup_64)
@@ -209,26 +241,48 @@ ENTRY(startup_64)
 	jmp	preferred_addr
 
 ENTRY(efi_pe_entry)
-	mov	%rcx, %rdi
-	mov	%rdx, %rsi
-	pushq	%rdi
-	pushq	%rsi
+	movq	%rcx, efi64_config(%rip)	/* Handle */
+	movq	%rdx, efi64_config+8(%rip) /* EFI System table pointer */
+
+	leaq	efi64_config(%rip), %rax
+	movq	%rax, efi_config(%rip)
+
+	call	1f
+1:	popq	%rbp
+	subq	$1b, %rbp
+
+	/*
+	 * Relocate efi_config->call().
+	 */
+	addq	%rbp, efi64_config+88(%rip)
+
+	movq	%rax, %rdi
 	call	make_boot_params
 	cmpq	$0,%rax
-	je	1f
-	mov	%rax, %rdx
-	popq	%rsi
-	popq	%rdi
+	je	fail
+	mov	%rax, %rsi
+	jmp	2f		/* Skip the relocation */
 
-ENTRY(efi_stub_entry)
+handover_entry:
+	call	1f
+1:	popq	%rbp
+	subq	$1b, %rbp
+
+	/*
+	 * Relocate efi_config->call().
+	 */
+	movq	efi_config(%rip), %rax
+	addq	%rbp, 88(%rax)
+2:
+	movq	efi_config(%rip), %rdi
 	call	efi_main
 	movq	%rax,%rsi
 	cmpq	$0,%rax
 	jne	2f
-1:
+fail:
 	/* EFI init failed, so hang. */
 	hlt
-	jmp	1b
+	jmp	fail
 2:
 	call	3f
 3:
@@ -307,6 +361,20 @@ preferred_addr:
 	leaq	relocated(%rbx), %rax
 	jmp	*%rax
 
+#ifdef CONFIG_EFI_STUB
+	.org 0x390
+ENTRY(efi64_stub_entry)
+	movq	%rdi, efi64_config(%rip)	/* Handle */
+	movq	%rsi, efi64_config+8(%rip) /* EFI System table pointer */
+
+	leaq	efi64_config(%rip), %rax
+	movq	%rax, efi_config(%rip)
+
+	movq	%rdx, %rsi
+	jmp	handover_entry
+ENDPROC(efi64_stub_entry)
+#endif
+
 	.text
 relocated:
 
@@ -372,6 +440,22 @@ gdt:
 	.quad   0x0000000000000000	/* TS continued */
 gdt_end:
 
+efi_config:
+	.quad	0
+
+#ifdef CONFIG_EFI_MIXED
+	.global efi32_config
+efi32_config:
+	.fill	11,8,0
+	.quad	efi64_thunk
+	.byte	0
+#endif
+
+	.global efi64_config
+efi64_config:
+	.fill	11,8,0
+	.quad	efi_call6
+	.byte	1
 /*
  * Stack and heap for uncompression
  */