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authorLinus Torvalds <torvalds@linux-foundation.org>2014-03-31 12:26:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-03-31 12:26:05 -0700
commit7cc3afdf43ffb703db831292f3816d909fd44767 (patch)
tree9c9f4b9c1a880b4f8ec4fc44ef80b6568142756b /arch/x86/boot
parentad8946fbf913fff8671cbaee776d23c3d07173fa (diff)
parent204b0a1a4b92612c957a042df1a3be0e9cc79391 (diff)
Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 EFI changes from Ingo Molnar: "The main changes: - Add debug code to the dump EFI pagetable - Borislav Petkov - Make 1:1 runtime mapping robust when booting on machines with lots of memory - Borislav Petkov - Move the EFI facilities bits out of 'x86_efi_facility' and into efi.flags which is the standard architecture independent place to keep EFI state, by Matt Fleming. - Add 'EFI mixed mode' support: this allows 64-bit kernels to be booted from 32-bit firmware. This needs a bootloader that supports the 'EFI handover protocol'. By Matt Fleming" * 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits) x86, efi: Abstract x86 efi_early calls x86/efi: Restore 'attr' argument to query_variable_info() x86/efi: Rip out phys_efi_get_time() x86/efi: Preserve segment registers in mixed mode x86/boot: Fix non-EFI build x86, tools: Fix up compiler warnings x86/efi: Re-disable interrupts after calling firmware services x86/boot: Don't overwrite cr4 when enabling PAE x86/efi: Wire up CONFIG_EFI_MIXED x86/efi: Add mixed runtime services support x86/efi: Firmware agnostic handover entry points x86/efi: Split the boot stub into 32/64 code paths x86/efi: Add early thunk code to go from 64-bit to 32-bit x86/efi: Build our own EFI services pointer table efi: Add separate 32-bit/64-bit definitions x86/efi: Delete dead code when checking for non-native x86/mm/pageattr: Always dump the right page table in an oops x86, tools: Consolidate #ifdef code x86/boot: Cleanup header.S by removing some #ifdefs efi: Use NULL instead of 0 for pointer ...
Diffstat (limited to 'arch/x86/boot')
-rw-r--r--arch/x86/boot/Makefile2
-rw-r--r--arch/x86/boot/compressed/eboot.c1017
-rw-r--r--arch/x86/boot/compressed/eboot.h60
-rw-r--r--arch/x86/boot/compressed/efi_stub_64.S29
-rw-r--r--arch/x86/boot/compressed/head_32.S52
-rw-r--r--arch/x86/boot/compressed/head_64.S111
-rw-r--r--arch/x86/boot/header.S23
-rw-r--r--arch/x86/boot/tools/build.c77
8 files changed, 1111 insertions, 260 deletions
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 878df7e88cd4..abb9eba61b50 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -80,7 +80,7 @@ targets += voffset.h
$(obj)/voffset.h: vmlinux FORCE
$(call if_changed,voffset)
-sed-zoffset := -e 's/^\([0-9a-fA-F]*\) . \(startup_32\|startup_64\|efi_pe_entry\|efi_stub_entry\|input_data\|_end\|z_.*\)$$/\#define ZO_\2 0x\1/p'
+sed-zoffset := -e 's/^\([0-9a-fA-F]*\) . \(startup_32\|startup_64\|efi32_stub_entry\|efi64_stub_entry\|efi_pe_entry\|input_data\|_end\|z_.*\)$$/\#define ZO_\2 0x\1/p'
quiet_cmd_zoffset = ZOFFSET $@
cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index a7677babf946..1e6146137f8e 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -19,10 +19,272 @@
static efi_system_table_t *sys_table;
+static struct efi_config *efi_early;
+
+#define efi_call_early(f, ...) \
+ efi_early->call(efi_early->f, __VA_ARGS__);
+
+#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_call_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_call_early(free_pool, info);
+ goto grow;
+ }
+
+ *file_sz = info->file_size;
+ efi_call_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_call_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_call_early(free_pool, info);
+ goto grow;
+ }
+
+ *file_sz = info->file_size;
+ efi_call_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_call_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_call_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 +309,97 @@ 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_call_early(allocate_pool, EFI_LOADER_DATA, size, &rom);
+ if (status != EFI_SUCCESS)
+ return status;
- if (status != EFI_SUCCESS)
- return status;
+ memset(rom, 0, sizeof(*rom));
- status = efi_call_phys5(sys_table->boottime->locate_handle,
- EFI_LOCATE_BY_PROTOCOL, &pci_proto,
- NULL, &size, pci_handle);
- }
+ rom->data.type = SETUP_PCI;
+ rom->data.len = size - sizeof(struct setup_data);
+ rom->data.next = 0;
+ rom->pcilen = pci->romsize;
+ *__rom = rom;
- if (status != EFI_SUCCESS)
- goto free_handle;
-
- 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_call_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_call_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 +408,155 @@ 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_call_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_call_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_call_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_call_early(locate_handle,
+ EFI_LOCATE_BY_PROTOCOL,
+ &pci_proto, NULL, &size, pci_handle);
+
+ if (status == EFI_BUFFER_TOO_SMALL) {
+ status = efi_call_early(allocate_pool,
+ EFI_LOADER_DATA,
+ size, (void **)&pci_handle);
+
+ if (status != EFI_SUCCESS)
+ return status;
+
+ status = efi_call_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_call_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 +601,319 @@ 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_call_early(handle_protocol, h,
+ proto, (void **)&gop32);
+ if (status != EFI_SUCCESS)
+ continue;
+
+ status = efi_call_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_call_early(handle_protocol, h,
+ proto, (void **)&gop64);
+ if (status != EFI_SUCCESS)
+ continue;
+
+ status = efi_call_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_call_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_call_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_call_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];
+
+ status = efi_call_early(handle_protocol, handle,
+ &uga_proto, (void **)&uga);
+ if (status != EFI_SUCCESS)
+ continue;
+
+ efi_call_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;
- nr_ugas = size / sizeof(void *);
+ 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_call_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_call_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 +926,39 @@ 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_call_early(allocate_pool, EFI_LOADER_DATA,
+ size, (void **)&uga_handle);
+ if (status != EFI_SUCCESS)
+ return status;
+
+ status = efi_call_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 +977,8 @@ 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_call_early(free_pool, uga_handle);
return status;
}
@@ -404,29 +996,28 @@ 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_call_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_call_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 +1025,7 @@ 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 +1036,21 @@ 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_call_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 +1239,13 @@ 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_call_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_call_early(allocate_pool, EFI_LOADER_DATA,
+ size, (void **)e820ext);
if (status == EFI_SUCCESS)
*e820ext_size = size;
@@ -656,12 +1253,13 @@ 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 +1289,13 @@ get_map:
if (status != EFI_SUCCESS)
goto free_mem_map;
- efi_call_phys1(sys_table->boottime->free_pool, mem_map);
+ efi_call_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 +1308,7 @@ get_map:
#endif
/* Might as well exit boot services now */
- status = efi_call_phys2(sys_table->boottime->exit_boot_services,
- handle, key);
+ status = efi_call_early(exit_boot_services, handle, key);
if (status != EFI_SUCCESS) {
/*
* ExitBootServices() will fail if any of the event
@@ -722,7 +1321,7 @@ get_map:
goto free_mem_map;
called_exit = true;
- efi_call_phys1(sys_table->boottime->free_pool, mem_map);
+ efi_call_early(free_pool, mem_map);
goto get_map;
}
@@ -736,23 +1335,31 @@ get_map:
return EFI_SUCCESS;
free_mem_map:
- efi_call_phys1(sys_table->boottime->free_pool, mem_map);
+ efi_call_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 +1367,17 @@ 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_call_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 +1408,7 @@ 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..de9d4200d305 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 +229,15 @@ relocated:
xorl %ebx, %ebx
jmp *%eax
+#ifdef CONFIG_EFI_STUB
+ .data
+efi32_config:
+ .fill 11,8,0
+ .long efi_call_phys
+ .long 0
+ .byte 0
+#endif
+
/*
* 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..57e58a5fa210 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 +440,25 @@ gdt:
.quad 0x0000000000000000 /* TS continued */
gdt_end:
+#ifdef CONFIG_EFI_STUB
+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
+#endif /* CONFIG_EFI_STUB */
+
/*
* Stack and heap for uncompression
*/
diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
index 46f5a220b0ad..0ca9a5c362bc 100644
--- a/arch/x86/boot/header.S
+++ b/arch/x86/boot/header.S
@@ -283,7 +283,7 @@ _start:
# Part 2 of the header, from the old setup.S
.ascii "HdrS" # header signature
- .word 0x020c # header version number (>= 0x0105)
+ .word 0x020d # header version number (>= 0x0105)
# or else old loadlin-1.5 will fail)
.globl realmode_swtch
realmode_swtch: .word 0, 0 # default_switch, SETUPSEG
@@ -375,7 +375,8 @@ xloadflags:
# define XLF0 0
#endif
-#if defined(CONFIG_RELOCATABLE) && defined(CONFIG_X86_64)
+#if defined(CONFIG_RELOCATABLE) && defined(CONFIG_X86_64) && \
+ !defined(CONFIG_EFI_MIXED)
/* kernel/boot_param/ramdisk could be loaded above 4g */
# define XLF1 XLF_CAN_BE_LOADED_ABOVE_4G
#else
@@ -383,10 +384,14 @@ xloadflags:
#endif
#ifdef CONFIG_EFI_STUB
-# ifdef CONFIG_X86_64
-# define XLF23 XLF_EFI_HANDOVER_64 /* 64-bit EFI handover ok */
+# ifdef CONFIG_EFI_MIXED
+# define XLF23 (XLF_EFI_HANDOVER_32|XLF_EFI_HANDOVER_64)
# else
-# define XLF23 XLF_EFI_HANDOVER_32 /* 32-bit EFI handover ok */
+# ifdef CONFIG_X86_64
+# define XLF23 XLF_EFI_HANDOVER_64 /* 64-bit EFI handover ok */
+# else
+# define XLF23 XLF_EFI_HANDOVER_32 /* 32-bit EFI handover ok */
+# endif
# endif
#else
# define XLF23 0
@@ -426,13 +431,7 @@ pref_address: .quad LOAD_PHYSICAL_ADDR # preferred load addr
#define INIT_SIZE VO_INIT_SIZE
#endif
init_size: .long INIT_SIZE # kernel initialization size
-handover_offset:
-#ifdef CONFIG_EFI_STUB
- .long 0x30 # offset to the handover
- # protocol entry point
-#else
- .long 0
-#endif
+handover_offset: .long 0 # Filled in by build.c
# End of setup header #####################################################
diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c
index 8e15b22391fc..1a2f2121cada 100644
--- a/arch/x86/boot/tools/build.c
+++ b/arch/x86/boot/tools/build.c
@@ -53,7 +53,8 @@ int is_big_kernel;
#define PECOFF_RELOC_RESERVE 0x20
-unsigned long efi_stub_entry;
+unsigned long efi32_stub_entry;
+unsigned long efi64_stub_entry;
unsigned long efi_pe_entry;
unsigned long startup_64;
@@ -219,6 +220,52 @@ static void update_pecoff_text(unsigned int text_start, unsigned int file_sz)
update_pecoff_section_header(".text", text_start, text_sz);
}
+static int reserve_pecoff_reloc_section(int c)
+{
+ /* Reserve 0x20 bytes for .reloc section */
+ memset(buf+c, 0, PECOFF_RELOC_RESERVE);
+ return PECOFF_RELOC_RESERVE;
+}
+
+static void efi_stub_defaults(void)
+{
+ /* Defaults for old kernel */
+#ifdef CONFIG_X86_32
+ efi_pe_entry = 0x10;
+#else
+ efi_pe_entry = 0x210;
+ startup_64 = 0x200;
+#endif
+}
+
+static void efi_stub_entry_update(void)
+{
+ unsigned long addr = efi32_stub_entry;
+
+#ifdef CONFIG_X86_64
+ /* Yes, this is really how we defined it :( */
+ addr = efi64_stub_entry - 0x200;
+#endif
+
+#ifdef CONFIG_EFI_MIXED
+ if (efi32_stub_entry != addr)
+ die("32-bit and 64-bit EFI entry points do not match\n");
+#endif
+ put_unaligned_le32(addr, &buf[0x264]);
+}
+
+#else
+
+static inline void update_pecoff_setup_and_reloc(unsigned int size) {}
+static inline void update_pecoff_text(unsigned int text_start,
+ unsigned int file_sz) {}
+static inline void efi_stub_defaults(void) {}
+static inline void efi_stub_entry_update(void) {}
+
+static inline int reserve_pecoff_reloc_section(int c)
+{
+ return 0;
+}
#endif /* CONFIG_EFI_STUB */
@@ -250,7 +297,8 @@ static void parse_zoffset(char *fname)
p = (char *)buf;
while (p && *p) {
- PARSE_ZOFS(p, efi_stub_entry);
+ PARSE_ZOFS(p, efi32_stub_entry);
+ PARSE_ZOFS(p, efi64_stub_entry);
PARSE_ZOFS(p, efi_pe_entry);
PARSE_ZOFS(p, startup_64);
@@ -271,15 +319,7 @@ int main(int argc, char ** argv)
void *kernel;
u32 crc = 0xffffffffUL;
- /* Defaults for old kernel */
-#ifdef CONFIG_X86_32
- efi_pe_entry = 0x10;
- efi_stub_entry = 0x30;
-#else
- efi_pe_entry = 0x210;
- efi_stub_entry = 0x230;
- startup_64 = 0x200;
-#endif
+ efi_stub_defaults();
if (argc != 5)
usage();
@@ -302,11 +342,7 @@ int main(int argc, char ** argv)
die("Boot block hasn't got boot flag (0xAA55)");
fclose(file);
-#ifdef CONFIG_EFI_STUB
- /* Reserve 0x20 bytes for .reloc section */
- memset(buf+c, 0, PECOFF_RELOC_RESERVE);
- c += PECOFF_RELOC_RESERVE;
-#endif
+ c += reserve_pecoff_reloc_section(c);
/* Pad unused space with zeros */
setup_sectors = (c + 511) / 512;
@@ -315,9 +351,7 @@ int main(int argc, char ** argv)
i = setup_sectors*512;
memset(buf+c, 0, i-c);
-#ifdef CONFIG_EFI_STUB
update_pecoff_setup_and_reloc(i);
-#endif
/* Set the default root device */
put_unaligned_le16(DEFAULT_ROOT_DEV, &buf[508]);
@@ -342,14 +376,9 @@ int main(int argc, char ** argv)
buf[0x1f1] = setup_sectors-1;
put_unaligned_le32(sys_size, &buf[0x1f4]);
-#ifdef CONFIG_EFI_STUB
update_pecoff_text(setup_sectors * 512, sz + i + ((sys_size * 16) - sz));
-#ifdef CONFIG_X86_64 /* Yes, this is really how we defined it :( */
- efi_stub_entry -= 0x200;
-#endif
- put_unaligned_le32(efi_stub_entry, &buf[0x264]);
-#endif
+ efi_stub_entry_update();
crc = partial_crc32(buf, i, crc);
if (fwrite(buf, 1, i, dest) != i)