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
  ...

1 files changed, 260 insertions, 8 deletions

diff --git a/include/linux/efi.h b/include/linux/efi.h
index 0a819e7a60c9..6c100ff0cae4 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -153,6 +153,102 @@ typedef struct {
         u8 sets_to_zero;
 } efi_time_cap_t;
 
+typedef struct {
+        efi_table_hdr_t hdr;
+        u32 raise_tpl;
+        u32 restore_tpl;
+        u32 allocate_pages;
+        u32 free_pages;
+        u32 get_memory_map;
+        u32 allocate_pool;
+        u32 free_pool;
+        u32 create_event;
+        u32 set_timer;
+        u32 wait_for_event;
+        u32 signal_event;
+        u32 close_event;
+        u32 check_event;
+        u32 install_protocol_interface;
+        u32 reinstall_protocol_interface;
+        u32 uninstall_protocol_interface;
+        u32 handle_protocol;
+        u32 __reserved;
+        u32 register_protocol_notify;
+        u32 locate_handle;
+        u32 locate_device_path;
+        u32 install_configuration_table;
+        u32 load_image;
+        u32 start_image;
+        u32 exit;
+        u32 unload_image;
+        u32 exit_boot_services;
+        u32 get_next_monotonic_count;
+        u32 stall;
+        u32 set_watchdog_timer;
+        u32 connect_controller;
+        u32 disconnect_controller;
+        u32 open_protocol;
+        u32 close_protocol;
+        u32 open_protocol_information;
+        u32 protocols_per_handle;
+        u32 locate_handle_buffer;
+        u32 locate_protocol;
+        u32 install_multiple_protocol_interfaces;
+        u32 uninstall_multiple_protocol_interfaces;
+        u32 calculate_crc32;
+        u32 copy_mem;
+        u32 set_mem;
+        u32 create_event_ex;
+} __packed efi_boot_services_32_t;
+
+typedef struct {
+        efi_table_hdr_t hdr;
+        u64 raise_tpl;
+        u64 restore_tpl;
+        u64 allocate_pages;
+        u64 free_pages;
+        u64 get_memory_map;
+        u64 allocate_pool;
+        u64 free_pool;
+        u64 create_event;
+        u64 set_timer;
+        u64 wait_for_event;
+        u64 signal_event;
+        u64 close_event;
+        u64 check_event;
+        u64 install_protocol_interface;
+        u64 reinstall_protocol_interface;
+        u64 uninstall_protocol_interface;
+        u64 handle_protocol;
+        u64 __reserved;
+        u64 register_protocol_notify;
+        u64 locate_handle;
+        u64 locate_device_path;
+        u64 install_configuration_table;
+        u64 load_image;
+        u64 start_image;
+        u64 exit;
+        u64 unload_image;
+        u64 exit_boot_services;
+        u64 get_next_monotonic_count;
+        u64 stall;
+        u64 set_watchdog_timer;
+        u64 connect_controller;
+        u64 disconnect_controller;
+        u64 open_protocol;
+        u64 close_protocol;
+        u64 open_protocol_information;
+        u64 protocols_per_handle;
+        u64 locate_handle_buffer;
+        u64 locate_protocol;
+        u64 install_multiple_protocol_interfaces;
+        u64 uninstall_multiple_protocol_interfaces;
+        u64 calculate_crc32;
+        u64 copy_mem;
+        u64 set_mem;
+        u64 create_event_ex;
+} __packed efi_boot_services_64_t;
+
 /*
  * EFI Boot Services table
  */
@@ -231,6 +327,15 @@ typedef enum {
     EfiPciIoAttributeOperationMaximum
 } EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION;
 
+typedef struct {
+        u32 read;
+        u32 write;
+} efi_pci_io_protocol_access_32_t;
+
+typedef struct {
+        u64 read;
+        u64 write;
+} efi_pci_io_protocol_access_64_t;
 
 typedef struct {
         void *read;
@@ -238,6 +343,46 @@ typedef struct {
 } efi_pci_io_protocol_access_t;
 
 typedef struct {
+        u32 poll_mem;
+        u32 poll_io;
+        efi_pci_io_protocol_access_32_t mem;
+        efi_pci_io_protocol_access_32_t io;
+        efi_pci_io_protocol_access_32_t pci;
+        u32 copy_mem;
+        u32 map;
+        u32 unmap;
+        u32 allocate_buffer;
+        u32 free_buffer;
+        u32 flush;
+        u32 get_location;
+        u32 attributes;
+        u32 get_bar_attributes;
+        u32 set_bar_attributes;
+        uint64_t romsize;
+        void *romimage;
+} efi_pci_io_protocol_32;
+
+typedef struct {
+        u64 poll_mem;
+        u64 poll_io;
+        efi_pci_io_protocol_access_64_t mem;
+        efi_pci_io_protocol_access_64_t io;
+        efi_pci_io_protocol_access_64_t pci;
+        u64 copy_mem;
+        u64 map;
+        u64 unmap;
+        u64 allocate_buffer;
+        u64 free_buffer;
+        u64 flush;
+        u64 get_location;
+        u64 attributes;
+        u64 get_bar_attributes;
+        u64 set_bar_attributes;
+        uint64_t romsize;
+        void *romimage;
+} efi_pci_io_protocol_64;
+
+typedef struct {
         void *poll_mem;
         void *poll_io;
         efi_pci_io_protocol_access_t mem;
@@ -292,6 +437,42 @@ typedef struct {
 
 typedef struct {
         efi_table_hdr_t hdr;
+        u32 get_time;
+        u32 set_time;
+        u32 get_wakeup_time;
+        u32 set_wakeup_time;
+        u32 set_virtual_address_map;
+        u32 convert_pointer;
+        u32 get_variable;
+        u32 get_next_variable;
+        u32 set_variable;
+        u32 get_next_high_mono_count;
+        u32 reset_system;
+        u32 update_capsule;
+        u32 query_capsule_caps;
+        u32 query_variable_info;
+} efi_runtime_services_32_t;
+
+typedef struct {
+        efi_table_hdr_t hdr;
+        u64 get_time;
+        u64 set_time;
+        u64 get_wakeup_time;
+        u64 set_wakeup_time;
+        u64 set_virtual_address_map;
+        u64 convert_pointer;
+        u64 get_variable;
+        u64 get_next_variable;
+        u64 set_variable;
+        u64 get_next_high_mono_count;
+        u64 reset_system;
+        u64 update_capsule;
+        u64 query_capsule_caps;
+        u64 query_variable_info;
+} efi_runtime_services_64_t;
+
+typedef struct {
+        efi_table_hdr_t hdr;
         void *get_time;
         void *set_time;
         void *get_wakeup_time;
@@ -485,6 +666,38 @@ struct efi_memory_map {
 
 typedef struct {
         u32 revision;
+        u32 parent_handle;
+        u32 system_table;
+        u32 device_handle;
+        u32 file_path;
+        u32 reserved;
+        u32 load_options_size;
+        u32 load_options;
+        u32 image_base;
+        __aligned_u64 image_size;
+        unsigned int image_code_type;
+        unsigned int image_data_type;
+        unsigned long unload;
+} efi_loaded_image_32_t;
+
+typedef struct {
+        u32 revision;
+        u64 parent_handle;
+        u64 system_table;
+        u64 device_handle;
+        u64 file_path;
+        u64 reserved;
+        u32 load_options_size;
+        u64 load_options;
+        u64 image_base;
+        __aligned_u64 image_size;
+        unsigned int image_code_type;
+        unsigned int image_data_type;
+        unsigned long unload;
+} efi_loaded_image_64_t;
+
+typedef struct {
+        u32 revision;
         void *parent_handle;
         efi_system_table_t *system_table;
         void *device_handle;
@@ -511,6 +724,34 @@ typedef struct {
         efi_char16_t filename[1];
 } efi_file_info_t;
 
+typedef struct {
+        u64 revision;
+        u32 open;
+        u32 close;
+        u32 delete;
+        u32 read;
+        u32 write;
+        u32 get_position;
+        u32 set_position;
+        u32 get_info;
+        u32 set_info;
+        u32 flush;
+} efi_file_handle_32_t;
+
+typedef struct {
+        u64 revision;
+        u64 open;
+        u64 close;
+        u64 delete;
+        u64 read;
+        u64 write;
+        u64 get_position;
+        u64 set_position;
+        u64 get_info;
+        u64 set_info;
+        u64 flush;
+} efi_file_handle_64_t;
+
 typedef struct _efi_file_handle {
         u64 revision;
         efi_status_t (*open)(struct _efi_file_handle *,
@@ -573,6 +814,7 @@ extern struct efi {
         efi_reset_system_t *reset_system;
         efi_set_virtual_address_map_t *set_virtual_address_map;
         struct efi_memory_map *memmap;
+        unsigned long flags;
 } efi;
 
 static inline int
@@ -659,18 +901,17 @@ extern int __init efi_setup_pcdp_console(char *);
 #define EFI_ARCH_1              6       /* First arch-specific bit */
 
 #ifdef CONFIG_EFI
-# ifdef CONFIG_X86
-extern int efi_enabled(int facility);
-# else
-static inline int efi_enabled(int facility)
+/*
+ * Test whether the above EFI_* bits are enabled.
+ */
+static inline bool efi_enabled(int feature)
 {
-        return 1;
+        return test_bit(feature, &efi.flags) != 0;
 }
-# endif
 #else
-static inline int efi_enabled(int facility)
+static inline bool efi_enabled(int feature)
 {
-        return 0;
+        return false;
 }
 #endif
 
@@ -809,6 +1050,17 @@ struct efivar_entry {
         bool deleting;
 };
 
+struct efi_simple_text_output_protocol_32 {
+        u32 reset;
+        u32 output_string;
+        u32 test_string;
+};
+
+struct efi_simple_text_output_protocol_64 {
+        u64 reset;
+        u64 output_string;
+        u64 test_string;
+};
 
 struct efi_simple_text_output_protocol {
         void *reset;