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Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, efi: Properly pre-initialize table pointers x86, efi: Add infrastructure for UEFI 2.0 runtime services x86, efi: Fix argument types for SetVariable()
This commit is contained in:
commit
227ad9bc07
2 changed files with 82 additions and 3 deletions
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@ -51,7 +51,17 @@
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int efi_enabled;
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EXPORT_SYMBOL(efi_enabled);
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struct efi efi;
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struct efi __read_mostly efi = {
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.mps = EFI_INVALID_TABLE_ADDR,
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.acpi = EFI_INVALID_TABLE_ADDR,
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.acpi20 = EFI_INVALID_TABLE_ADDR,
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.smbios = EFI_INVALID_TABLE_ADDR,
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.sal_systab = EFI_INVALID_TABLE_ADDR,
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.boot_info = EFI_INVALID_TABLE_ADDR,
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.hcdp = EFI_INVALID_TABLE_ADDR,
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.uga = EFI_INVALID_TABLE_ADDR,
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.uv_systab = EFI_INVALID_TABLE_ADDR,
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};
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EXPORT_SYMBOL(efi);
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struct efi_memory_map memmap;
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@ -146,7 +156,7 @@ static efi_status_t virt_efi_get_next_variable(unsigned long *name_size,
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static efi_status_t virt_efi_set_variable(efi_char16_t *name,
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efi_guid_t *vendor,
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unsigned long attr,
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u32 attr,
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unsigned long data_size,
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void *data)
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{
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@ -155,6 +165,18 @@ static efi_status_t virt_efi_set_variable(efi_char16_t *name,
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data_size, data);
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}
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static efi_status_t virt_efi_query_variable_info(u32 attr,
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u64 *storage_space,
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u64 *remaining_space,
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u64 *max_variable_size)
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{
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if (efi.runtime_version < EFI_2_00_SYSTEM_TABLE_REVISION)
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return EFI_UNSUPPORTED;
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return efi_call_virt4(query_variable_info, attr, storage_space,
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remaining_space, max_variable_size);
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}
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static efi_status_t virt_efi_get_next_high_mono_count(u32 *count)
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{
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return efi_call_virt1(get_next_high_mono_count, count);
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@ -169,6 +191,28 @@ static void virt_efi_reset_system(int reset_type,
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data_size, data);
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}
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static efi_status_t virt_efi_update_capsule(efi_capsule_header_t **capsules,
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unsigned long count,
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unsigned long sg_list)
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{
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if (efi.runtime_version < EFI_2_00_SYSTEM_TABLE_REVISION)
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return EFI_UNSUPPORTED;
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return efi_call_virt3(update_capsule, capsules, count, sg_list);
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}
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static efi_status_t virt_efi_query_capsule_caps(efi_capsule_header_t **capsules,
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unsigned long count,
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u64 *max_size,
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int *reset_type)
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{
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if (efi.runtime_version < EFI_2_00_SYSTEM_TABLE_REVISION)
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return EFI_UNSUPPORTED;
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return efi_call_virt4(query_capsule_caps, capsules, count, max_size,
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reset_type);
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}
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static efi_status_t __init phys_efi_set_virtual_address_map(
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unsigned long memory_map_size,
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unsigned long descriptor_size,
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@ -696,6 +740,9 @@ void __init efi_enter_virtual_mode(void)
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efi.get_next_high_mono_count = virt_efi_get_next_high_mono_count;
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efi.reset_system = virt_efi_reset_system;
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efi.set_virtual_address_map = NULL;
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efi.query_variable_info = virt_efi_query_variable_info;
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efi.update_capsule = virt_efi_update_capsule;
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efi.query_capsule_caps = virt_efi_query_capsule_caps;
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if (__supported_pte_mask & _PAGE_NX)
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runtime_code_page_mkexec();
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early_iounmap(memmap.map, memmap.nr_map * memmap.desc_size);
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@ -101,6 +101,13 @@ typedef struct {
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u64 attribute;
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} efi_memory_desc_t;
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typedef struct {
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efi_guid_t guid;
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u32 headersize;
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u32 flags;
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u32 imagesize;
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} efi_capsule_header_t;
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typedef int (*efi_freemem_callback_t) (u64 start, u64 end, void *arg);
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/*
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@ -156,6 +163,9 @@ typedef struct {
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unsigned long set_variable;
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unsigned long get_next_high_mono_count;
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unsigned long reset_system;
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unsigned long update_capsule;
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unsigned long query_capsule_caps;
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unsigned long query_variable_info;
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} efi_runtime_services_t;
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typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc);
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@ -168,7 +178,7 @@ typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor,
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typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name,
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efi_guid_t *vendor);
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typedef efi_status_t efi_set_variable_t (efi_char16_t *name, efi_guid_t *vendor,
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unsigned long attr, unsigned long data_size,
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u32 attr, unsigned long data_size,
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void *data);
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typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count);
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typedef void efi_reset_system_t (int reset_type, efi_status_t status,
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@ -177,6 +187,17 @@ typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_siz
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unsigned long descriptor_size,
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u32 descriptor_version,
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efi_memory_desc_t *virtual_map);
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typedef efi_status_t efi_query_variable_info_t(u32 attr,
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u64 *storage_space,
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u64 *remaining_space,
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u64 *max_variable_size);
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typedef efi_status_t efi_update_capsule_t(efi_capsule_header_t **capsules,
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unsigned long count,
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unsigned long sg_list);
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typedef efi_status_t efi_query_capsule_caps_t(efi_capsule_header_t **capsules,
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unsigned long count,
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u64 *max_size,
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int *reset_type);
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/*
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* EFI Configuration Table and GUID definitions
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@ -218,6 +239,13 @@ typedef struct {
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#define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL)
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#define EFI_2_30_SYSTEM_TABLE_REVISION ((2 << 16) | (30))
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#define EFI_2_20_SYSTEM_TABLE_REVISION ((2 << 16) | (20))
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#define EFI_2_10_SYSTEM_TABLE_REVISION ((2 << 16) | (10))
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#define EFI_2_00_SYSTEM_TABLE_REVISION ((2 << 16) | (00))
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#define EFI_1_10_SYSTEM_TABLE_REVISION ((1 << 16) | (10))
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#define EFI_1_02_SYSTEM_TABLE_REVISION ((1 << 16) | (02))
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typedef struct {
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efi_table_hdr_t hdr;
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unsigned long fw_vendor; /* physical addr of CHAR16 vendor string */
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@ -250,6 +278,7 @@ struct efi_memory_map {
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*/
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extern struct efi {
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efi_system_table_t *systab; /* EFI system table */
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unsigned int runtime_version; /* Runtime services version */
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unsigned long mps; /* MPS table */
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unsigned long acpi; /* ACPI table (IA64 ext 0.71) */
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unsigned long acpi20; /* ACPI table (ACPI 2.0) */
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@ -266,6 +295,9 @@ extern struct efi {
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efi_get_variable_t *get_variable;
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efi_get_next_variable_t *get_next_variable;
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efi_set_variable_t *set_variable;
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efi_query_variable_info_t *query_variable_info;
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efi_update_capsule_t *update_capsule;
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efi_query_capsule_caps_t *query_capsule_caps;
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efi_get_next_high_mono_count_t *get_next_high_mono_count;
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efi_reset_system_t *reset_system;
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efi_set_virtual_address_map_t *set_virtual_address_map;
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