iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

efi: Clean up config table description arrays

Browse Source 
Increase legibility by adding whitespace to the efi_config_table_type_t
arrays that describe which EFI config tables we look for when going over
the firmware provided list. While at it, replace the 'name' char pointer
with a char array, which is more space efficient on relocatable 64-bit
kernels, as it avoids a 8 byte pointer and the associated relocation
data (24 bytes when using RELA format)

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
This commit is contained in:
Ard Biesheuvel 2020-03-26 09:24:14 +01:00
parent 0a75561489
commit 4e9a0f73f0
5 changed files with 27 additions and 27 deletions
arch
ia64/kernel
efi.c
x86/platform/efi
efi.c
drivers/firmware/efi
arm-init.cefi.c
include/linux
efi.h

12
arch/ia64/kernel/efi.c

@ -57,12 +57,12 @@ unsigned long hcdp_phys = EFI_INVALID_TABLE_ADDR;
unsigned long sal_systab_phys = EFI_INVALID_TABLE_ADDR;
static const efi_config_table_type_t arch_tables[] __initconst = {
{ESI_TABLE_GUID, "ESI", &esi_phys},
{HCDP_TABLE_GUID, "HCDP", &hcdp_phys},
{MPS_TABLE_GUID, "MPS", &mps_phys},
{PROCESSOR_ABSTRACTION_LAYER_OVERWRITE_GUID, "PALO", &palo_phys},
{SAL_SYSTEM_TABLE_GUID, "SALsystab", &sal_systab_phys},
{NULL_GUID, NULL, 0},
{ESI_TABLE_GUID, &esi_phys, "ESI" },
{HCDP_TABLE_GUID, &hcdp_phys, "HCDP" },
{MPS_TABLE_GUID, &mps_phys, "MPS" },
{PROCESSOR_ABSTRACTION_LAYER_OVERWRITE_GUID, &palo_phys, "PALO" },
{SAL_SYSTEM_TABLE_GUID, &sal_systab_phys, "SALsystab" },
{},
};
extern efi_status_t efi_call_phys (void *, ...);

8
arch/x86/platform/efi/efi.c

@ -62,12 +62,12 @@ static unsigned long efi_runtime, efi_nr_tables;
unsigned long efi_fw_vendor, efi_config_table;
static const efi_config_table_type_t arch_tables[] __initconst = {
{EFI_PROPERTIES_TABLE_GUID, "PROP", &prop_phys},
{UGA_IO_PROTOCOL_GUID, "UGA", &uga_phys},
{EFI_PROPERTIES_TABLE_GUID, &prop_phys, "PROP" },
{UGA_IO_PROTOCOL_GUID, &uga_phys, "UGA" },
#ifdef CONFIG_X86_UV
{UV_SYSTEM_TABLE_GUID, "UVsystab", &uv_systab_phys},
{UV_SYSTEM_TABLE_GUID, &uv_systab_phys, "UVsystab" },
#endif
{NULL_GUID, NULL, NULL},
{},
};
static const unsigned long * const efi_tables[] = {

4
drivers/firmware/efi/arm-init.c

@ -54,8 +54,8 @@ static phys_addr_t __init efi_to_phys(unsigned long addr)
static __initdata unsigned long screen_info_table = EFI_INVALID_TABLE_ADDR;
static const efi_config_table_type_t arch_tables[] __initconst = {
{LINUX_EFI_ARM_SCREEN_INFO_TABLE_GUID, NULL, &screen_info_table},
{NULL_GUID, NULL, NULL}
{LINUX_EFI_ARM_SCREEN_INFO_TABLE_GUID, &screen_info_table},
{}
};
static void __init init_screen_info(void)

28
drivers/firmware/efi/efi.c

@ -502,21 +502,21 @@ void __init efi_mem_reserve(phys_addr_t addr, u64 size)
}
static const efi_config_table_type_t common_tables[] __initconst = {
{ACPI_20_TABLE_GUID, "ACPI 2.0", &efi.acpi20},
{ACPI_TABLE_GUID, "ACPI", &efi.acpi},
{SMBIOS_TABLE_GUID, "SMBIOS", &efi.smbios},
{SMBIOS3_TABLE_GUID, "SMBIOS 3.0", &efi.smbios3},
{EFI_SYSTEM_RESOURCE_TABLE_GUID, "ESRT", &efi.esrt},
{EFI_MEMORY_ATTRIBUTES_TABLE_GUID, "MEMATTR", &efi_mem_attr_table},
{LINUX_EFI_RANDOM_SEED_TABLE_GUID, "RNG", &efi_rng_seed},
{LINUX_EFI_TPM_EVENT_LOG_GUID, "TPMEventLog", &efi.tpm_log},
{LINUX_EFI_TPM_FINAL_LOG_GUID, "TPMFinalLog", &efi.tpm_final_log},
{LINUX_EFI_MEMRESERVE_TABLE_GUID, "MEMRESERVE", &mem_reserve},
{EFI_RT_PROPERTIES_TABLE_GUID, "RTPROP", &rt_prop},
{ACPI_20_TABLE_GUID, &efi.acpi20, "ACPI 2.0" },
{ACPI_TABLE_GUID, &efi.acpi, "ACPI" },
{SMBIOS_TABLE_GUID, &efi.smbios, "SMBIOS" },
{SMBIOS3_TABLE_GUID, &efi.smbios3, "SMBIOS 3.0" },
{EFI_SYSTEM_RESOURCE_TABLE_GUID, &efi.esrt, "ESRT" },
{EFI_MEMORY_ATTRIBUTES_TABLE_GUID, &efi_mem_attr_table, "MEMATTR" },
{LINUX_EFI_RANDOM_SEED_TABLE_GUID, &efi_rng_seed, "RNG" },
{LINUX_EFI_TPM_EVENT_LOG_GUID, &efi.tpm_log, "TPMEventLog" },
{LINUX_EFI_TPM_FINAL_LOG_GUID, &efi.tpm_final_log, "TPMFinalLog" },
{LINUX_EFI_MEMRESERVE_TABLE_GUID, &mem_reserve, "MEMRESERVE" },
{EFI_RT_PROPERTIES_TABLE_GUID, &rt_prop, "RTPROP" },
#ifdef CONFIG_EFI_RCI2_TABLE
{DELLEMC_EFI_RCI2_TABLE_GUID, NULL, &rci2_table_phys},
{DELLEMC_EFI_RCI2_TABLE_GUID, &rci2_table_phys },
#endif
{NULL_GUID, NULL, NULL},
{},
};
static __init int match_config_table(const efi_guid_t *guid,
@ -529,7 +529,7 @@ static __init int match_config_table(const efi_guid_t *guid,
for (i = 0; efi_guidcmp(table_types[i].guid, NULL_GUID); i++) {
if (!efi_guidcmp(*guid, table_types[i].guid)) {
*(table_types[i].ptr) = table;
if (table_types[i].name)
if (table_types[i].name[0])
pr_cont(" %s=0x%lx ",
table_types[i].name, table);
return 1;

2
include/linux/efi.h

@ -379,8 +379,8 @@ typedef union {
typedef struct {
efi_guid_t guid;
const char *name;
unsigned long *ptr;
const char name[16];
} efi_config_table_type_t;
#define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL)