diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2015-09-09 10:08:15 +0200 |
|---|---|---|
| committer | Matt Fleming <matt.fleming@intel.com> | 2015-10-12 14:20:07 +0100 |
| commit | bf924863c9445174c6e118f723dc477e2b6ccc7e (patch) | |
| tree | f59b9d7ab08d6e67decc6f791be1f1891b688b80 | |
| parent | 8be4432eb629a2762bad9173d6b06e6ea9c0dfcb (diff) | |
efi: Add support for UEFIv2.5 Properties table
Version 2.5 of the UEFI spec introduces a new configuration table
called the 'EFI Properties table'. Currently, it is only used to
convey whether the Memory Protection feature is enabled, which splits
PE/COFF images into separate code and data memory regions.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Acked-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
| -rw-r--r-- | drivers/firmware/efi/efi.c | 30 | ||||
| -rw-r--r-- | include/linux/efi.h | 13 |
2 files changed, 29 insertions, 14 deletions
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c index 278d4d88d250..c297d78f50fd 100644 --- a/drivers/firmware/efi/efi.c +++ b/drivers/firmware/efi/efi.c @@ -26,20 +26,21 @@ #include <linux/platform_device.h> struct efi __read_mostly efi = { - .mps = EFI_INVALID_TABLE_ADDR, - .acpi = EFI_INVALID_TABLE_ADDR, - .acpi20 = EFI_INVALID_TABLE_ADDR, - .smbios = EFI_INVALID_TABLE_ADDR, - .smbios3 = EFI_INVALID_TABLE_ADDR, - .sal_systab = EFI_INVALID_TABLE_ADDR, - .boot_info = EFI_INVALID_TABLE_ADDR, - .hcdp = EFI_INVALID_TABLE_ADDR, - .uga = EFI_INVALID_TABLE_ADDR, - .uv_systab = EFI_INVALID_TABLE_ADDR, - .fw_vendor = EFI_INVALID_TABLE_ADDR, - .runtime = EFI_INVALID_TABLE_ADDR, - .config_table = EFI_INVALID_TABLE_ADDR, - .esrt = EFI_INVALID_TABLE_ADDR, + .mps = EFI_INVALID_TABLE_ADDR, + .acpi = EFI_INVALID_TABLE_ADDR, + .acpi20 = EFI_INVALID_TABLE_ADDR, + .smbios = EFI_INVALID_TABLE_ADDR, + .smbios3 = EFI_INVALID_TABLE_ADDR, + .sal_systab = EFI_INVALID_TABLE_ADDR, + .boot_info = EFI_INVALID_TABLE_ADDR, + .hcdp = EFI_INVALID_TABLE_ADDR, + .uga = EFI_INVALID_TABLE_ADDR, + .uv_systab = EFI_INVALID_TABLE_ADDR, + .fw_vendor = EFI_INVALID_TABLE_ADDR, + .runtime = EFI_INVALID_TABLE_ADDR, + .config_table = EFI_INVALID_TABLE_ADDR, + .esrt = EFI_INVALID_TABLE_ADDR, + .properties_table = EFI_INVALID_TABLE_ADDR, }; EXPORT_SYMBOL(efi); @@ -365,6 +366,7 @@ static __initdata efi_config_table_type_t common_tables[] = { {SMBIOS3_TABLE_GUID, "SMBIOS 3.0", &efi.smbios3}, {UGA_IO_PROTOCOL_GUID, "UGA", &efi.uga}, {EFI_SYSTEM_RESOURCE_TABLE_GUID, "ESRT", &efi.esrt}, + {EFI_PROPERTIES_TABLE_GUID, "PROP", &efi.properties_table}, {NULL_GUID, NULL, NULL}, }; diff --git a/include/linux/efi.h b/include/linux/efi.h index 4677d8a1bfd0..d6a9bee755f2 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -596,6 +596,9 @@ void efi_native_runtime_setup(void); #define DEVICE_TREE_GUID \ EFI_GUID( 0xb1b621d5, 0xf19c, 0x41a5, 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0 ) +#define EFI_PROPERTIES_TABLE_GUID \ + EFI_GUID( 0x880aaca3, 0x4adc, 0x4a04, 0x90, 0x79, 0xb7, 0x47, 0x34, 0x08, 0x25, 0xe5 ) + typedef struct { efi_guid_t guid; u64 table; @@ -809,6 +812,15 @@ typedef struct _efi_file_io_interface { #define EFI_FILE_MODE_WRITE 0x0000000000000002 #define EFI_FILE_MODE_CREATE 0x8000000000000000 +typedef struct { + u32 version; + u32 length; + u64 memory_protection_attribute; +} efi_properties_table_t; + +#define EFI_PROPERTIES_TABLE_VERSION 0x00010000 +#define EFI_PROPERTIES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA 0x1 + #define EFI_INVALID_TABLE_ADDR (~0UL) /* @@ -831,6 +843,7 @@ extern struct efi { unsigned long runtime; /* runtime table */ unsigned long config_table; /* config tables */ unsigned long esrt; /* ESRT table */ + unsigned long properties_table; /* properties table */ efi_get_time_t *get_time; efi_set_time_t *set_time; efi_get_wakeup_time_t *get_wakeup_time; |