X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=arch%2Fx86%2Fplatform%2Fefi%2Fefi.c;h=3ae4128013e6063c5f63523342c9a8a284d35603;hb=ff0c4ad2c3a75ccfe6adca916e50804eb45bb2d9;hp=474356b98ede32e647d4343c32a7e7893fe4beff;hpb=de3796e77a587b28f0c9d8e04c02894d3939dc4e;p=pandora-kernel.git

diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 474356b98ede..3ae4128013e6 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -51,7 +51,17 @@
 int efi_enabled;
 EXPORT_SYMBOL(efi_enabled);
 
-struct efi efi;
+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,
+	.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,
+};
 EXPORT_SYMBOL(efi);
 
 struct efi_memory_map memmap;
@@ -79,26 +89,50 @@ early_param("add_efi_memmap", setup_add_efi_memmap);
 
 static efi_status_t virt_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc)
 {
-	return efi_call_virt2(get_time, tm, tc);
+	unsigned long flags;
+	efi_status_t status;
+
+	spin_lock_irqsave(&rtc_lock, flags);
+	status = efi_call_virt2(get_time, tm, tc);
+	spin_unlock_irqrestore(&rtc_lock, flags);
+	return status;
 }
 
 static efi_status_t virt_efi_set_time(efi_time_t *tm)
 {
-	return efi_call_virt1(set_time, tm);
+	unsigned long flags;
+	efi_status_t status;
+
+	spin_lock_irqsave(&rtc_lock, flags);
+	status = efi_call_virt1(set_time, tm);
+	spin_unlock_irqrestore(&rtc_lock, flags);
+	return status;
 }
 
 static efi_status_t virt_efi_get_wakeup_time(efi_bool_t *enabled,
 					     efi_bool_t *pending,
 					     efi_time_t *tm)
 {
-	return efi_call_virt3(get_wakeup_time,
-			      enabled, pending, tm);
+	unsigned long flags;
+	efi_status_t status;
+
+	spin_lock_irqsave(&rtc_lock, flags);
+	status = efi_call_virt3(get_wakeup_time,
+				enabled, pending, tm);
+	spin_unlock_irqrestore(&rtc_lock, flags);
+	return status;
 }
 
 static efi_status_t virt_efi_set_wakeup_time(efi_bool_t enabled, efi_time_t *tm)
 {
-	return efi_call_virt2(set_wakeup_time,
-			      enabled, tm);
+	unsigned long flags;
+	efi_status_t status;
+
+	spin_lock_irqsave(&rtc_lock, flags);
+	status = efi_call_virt2(set_wakeup_time,
+				enabled, tm);
+	spin_unlock_irqrestore(&rtc_lock, flags);
+	return status;
 }
 
 static efi_status_t virt_efi_get_variable(efi_char16_t *name,
@@ -122,7 +156,7 @@ static efi_status_t virt_efi_get_next_variable(unsigned long *name_size,
 
 static efi_status_t virt_efi_set_variable(efi_char16_t *name,
 					  efi_guid_t *vendor,
-					  unsigned long attr,
+					  u32 attr,
 					  unsigned long data_size,
 					  void *data)
 {
@@ -131,6 +165,18 @@ static efi_status_t virt_efi_set_variable(efi_char16_t *name,
 			      data_size, data);
 }
 
+static efi_status_t virt_efi_query_variable_info(u32 attr,
+						 u64 *storage_space,
+						 u64 *remaining_space,
+						 u64 *max_variable_size)
+{
+	if (efi.runtime_version < EFI_2_00_SYSTEM_TABLE_REVISION)
+		return EFI_UNSUPPORTED;
+
+	return efi_call_virt4(query_variable_info, attr, storage_space,
+			      remaining_space, max_variable_size);
+}
+
 static efi_status_t virt_efi_get_next_high_mono_count(u32 *count)
 {
 	return efi_call_virt1(get_next_high_mono_count, count);
@@ -145,6 +191,28 @@ static void virt_efi_reset_system(int reset_type,
 		       data_size, data);
 }
 
+static efi_status_t virt_efi_update_capsule(efi_capsule_header_t **capsules,
+					    unsigned long count,
+					    unsigned long sg_list)
+{
+	if (efi.runtime_version < EFI_2_00_SYSTEM_TABLE_REVISION)
+		return EFI_UNSUPPORTED;
+
+	return efi_call_virt3(update_capsule, capsules, count, sg_list);
+}
+
+static efi_status_t virt_efi_query_capsule_caps(efi_capsule_header_t **capsules,
+						unsigned long count,
+						u64 *max_size,
+						int *reset_type)
+{
+	if (efi.runtime_version < EFI_2_00_SYSTEM_TABLE_REVISION)
+		return EFI_UNSUPPORTED;
+
+	return efi_call_virt4(query_capsule_caps, capsules, count, max_size,
+			      reset_type);
+}
+
 static efi_status_t __init phys_efi_set_virtual_address_map(
 	unsigned long memory_map_size,
 	unsigned long descriptor_size,
@@ -164,11 +232,14 @@ static efi_status_t __init phys_efi_set_virtual_address_map(
 static efi_status_t __init phys_efi_get_time(efi_time_t *tm,
 					     efi_time_cap_t *tc)
 {
+	unsigned long flags;
 	efi_status_t status;
 
+	spin_lock_irqsave(&rtc_lock, flags);
 	efi_call_phys_prelog();
 	status = efi_call_phys2(efi_phys.get_time, tm, tc);
 	efi_call_phys_epilog();
+	spin_unlock_irqrestore(&rtc_lock, flags);
 	return status;
 }
 
@@ -504,9 +575,6 @@ void __init efi_init(void)
 	x86_platform.set_wallclock = efi_set_rtc_mmss;
 #endif
 
-	/* Setup for EFI runtime service */
-	reboot_type = BOOT_EFI;
-
 #if EFI_DEBUG
 	print_efi_memmap();
 #endif
@@ -672,6 +740,9 @@ void __init efi_enter_virtual_mode(void)
 	efi.get_next_high_mono_count = virt_efi_get_next_high_mono_count;
 	efi.reset_system = virt_efi_reset_system;
 	efi.set_virtual_address_map = NULL;
+	efi.query_variable_info = virt_efi_query_variable_info;
+	efi.update_capsule = virt_efi_update_capsule;
+	efi.query_capsule_caps = virt_efi_query_capsule_caps;
 	if (__supported_pte_mask & _PAGE_NX)
 		runtime_code_page_mkexec();
 	early_iounmap(memmap.map, memmap.nr_map * memmap.desc_size);