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path: root/drivers/xen/efi.c
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Diffstat (limited to 'drivers/xen/efi.c')
-rw-r--r--drivers/xen/efi.c173
1 files changed, 34 insertions, 139 deletions
diff --git a/drivers/xen/efi.c b/drivers/xen/efi.c
index e9d2135445c1..22f71ffd3406 100644
--- a/drivers/xen/efi.c
+++ b/drivers/xen/efi.c
@@ -38,7 +38,7 @@
#define efi_data(op) (op.u.efi_runtime_call)
-static efi_status_t xen_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc)
+efi_status_t xen_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc)
{
struct xen_platform_op op = INIT_EFI_OP(get_time);
@@ -59,8 +59,9 @@ static efi_status_t xen_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc)
return efi_data(op).status;
}
+EXPORT_SYMBOL_GPL(xen_efi_get_time);
-static efi_status_t xen_efi_set_time(efi_time_t *tm)
+efi_status_t xen_efi_set_time(efi_time_t *tm)
{
struct xen_platform_op op = INIT_EFI_OP(set_time);
@@ -72,10 +73,10 @@ static efi_status_t xen_efi_set_time(efi_time_t *tm)
return efi_data(op).status;
}
+EXPORT_SYMBOL_GPL(xen_efi_set_time);
-static efi_status_t xen_efi_get_wakeup_time(efi_bool_t *enabled,
- efi_bool_t *pending,
- efi_time_t *tm)
+efi_status_t xen_efi_get_wakeup_time(efi_bool_t *enabled, efi_bool_t *pending,
+ efi_time_t *tm)
{
struct xen_platform_op op = INIT_EFI_OP(get_wakeup_time);
@@ -95,8 +96,9 @@ static efi_status_t xen_efi_get_wakeup_time(efi_bool_t *enabled,
return efi_data(op).status;
}
+EXPORT_SYMBOL_GPL(xen_efi_get_wakeup_time);
-static efi_status_t xen_efi_set_wakeup_time(efi_bool_t enabled, efi_time_t *tm)
+efi_status_t xen_efi_set_wakeup_time(efi_bool_t enabled, efi_time_t *tm)
{
struct xen_platform_op op = INIT_EFI_OP(set_wakeup_time);
@@ -113,12 +115,11 @@ static efi_status_t xen_efi_set_wakeup_time(efi_bool_t enabled, efi_time_t *tm)
return efi_data(op).status;
}
+EXPORT_SYMBOL_GPL(xen_efi_set_wakeup_time);
-static efi_status_t xen_efi_get_variable(efi_char16_t *name,
- efi_guid_t *vendor,
- u32 *attr,
- unsigned long *data_size,
- void *data)
+efi_status_t xen_efi_get_variable(efi_char16_t *name, efi_guid_t *vendor,
+ u32 *attr, unsigned long *data_size,
+ void *data)
{
struct xen_platform_op op = INIT_EFI_OP(get_variable);
@@ -138,10 +139,11 @@ static efi_status_t xen_efi_get_variable(efi_char16_t *name,
return efi_data(op).status;
}
+EXPORT_SYMBOL_GPL(xen_efi_get_variable);
-static efi_status_t xen_efi_get_next_variable(unsigned long *name_size,
- efi_char16_t *name,
- efi_guid_t *vendor)
+efi_status_t xen_efi_get_next_variable(unsigned long *name_size,
+ efi_char16_t *name,
+ efi_guid_t *vendor)
{
struct xen_platform_op op = INIT_EFI_OP(get_next_variable_name);
@@ -161,12 +163,11 @@ static efi_status_t xen_efi_get_next_variable(unsigned long *name_size,
return efi_data(op).status;
}
+EXPORT_SYMBOL_GPL(xen_efi_get_next_variable);
-static efi_status_t xen_efi_set_variable(efi_char16_t *name,
- efi_guid_t *vendor,
- u32 attr,
- unsigned long data_size,
- void *data)
+efi_status_t xen_efi_set_variable(efi_char16_t *name, efi_guid_t *vendor,
+ u32 attr, unsigned long data_size,
+ void *data)
{
struct xen_platform_op op = INIT_EFI_OP(set_variable);
@@ -183,11 +184,11 @@ static efi_status_t xen_efi_set_variable(efi_char16_t *name,
return efi_data(op).status;
}
+EXPORT_SYMBOL_GPL(xen_efi_set_variable);
-static efi_status_t xen_efi_query_variable_info(u32 attr,
- u64 *storage_space,
- u64 *remaining_space,
- u64 *max_variable_size)
+efi_status_t xen_efi_query_variable_info(u32 attr, u64 *storage_space,
+ u64 *remaining_space,
+ u64 *max_variable_size)
{
struct xen_platform_op op = INIT_EFI_OP(query_variable_info);
@@ -205,8 +206,9 @@ static efi_status_t xen_efi_query_variable_info(u32 attr,
return efi_data(op).status;
}
+EXPORT_SYMBOL_GPL(xen_efi_query_variable_info);
-static efi_status_t xen_efi_get_next_high_mono_count(u32 *count)
+efi_status_t xen_efi_get_next_high_mono_count(u32 *count)
{
struct xen_platform_op op = INIT_EFI_OP(get_next_high_monotonic_count);
@@ -217,10 +219,10 @@ static efi_status_t xen_efi_get_next_high_mono_count(u32 *count)
return efi_data(op).status;
}
+EXPORT_SYMBOL_GPL(xen_efi_get_next_high_mono_count);
-static efi_status_t xen_efi_update_capsule(efi_capsule_header_t **capsules,
- unsigned long count,
- unsigned long sg_list)
+efi_status_t xen_efi_update_capsule(efi_capsule_header_t **capsules,
+ unsigned long count, unsigned long sg_list)
{
struct xen_platform_op op = INIT_EFI_OP(update_capsule);
@@ -237,11 +239,11 @@ static efi_status_t xen_efi_update_capsule(efi_capsule_header_t **capsules,
return efi_data(op).status;
}
+EXPORT_SYMBOL_GPL(xen_efi_update_capsule);
-static efi_status_t xen_efi_query_capsule_caps(efi_capsule_header_t **capsules,
- unsigned long count,
- u64 *max_size,
- int *reset_type)
+efi_status_t xen_efi_query_capsule_caps(efi_capsule_header_t **capsules,
+ unsigned long count, u64 *max_size,
+ int *reset_type)
{
struct xen_platform_op op = INIT_EFI_OP(query_capsule_capabilities);
@@ -260,111 +262,4 @@ static efi_status_t xen_efi_query_capsule_caps(efi_capsule_header_t **capsules,
return efi_data(op).status;
}
-
-static efi_char16_t vendor[100] __initdata;
-
-static efi_system_table_t efi_systab_xen __initdata = {
- .hdr = {
- .signature = EFI_SYSTEM_TABLE_SIGNATURE,
- .revision = 0, /* Initialized later. */
- .headersize = 0, /* Ignored by Linux Kernel. */
- .crc32 = 0, /* Ignored by Linux Kernel. */
- .reserved = 0
- },
- .fw_vendor = EFI_INVALID_TABLE_ADDR, /* Initialized later. */
- .fw_revision = 0, /* Initialized later. */
- .con_in_handle = EFI_INVALID_TABLE_ADDR, /* Not used under Xen. */
- .con_in = EFI_INVALID_TABLE_ADDR, /* Not used under Xen. */
- .con_out_handle = EFI_INVALID_TABLE_ADDR, /* Not used under Xen. */
- .con_out = EFI_INVALID_TABLE_ADDR, /* Not used under Xen. */
- .stderr_handle = EFI_INVALID_TABLE_ADDR, /* Not used under Xen. */
- .stderr = EFI_INVALID_TABLE_ADDR, /* Not used under Xen. */
- .runtime = (efi_runtime_services_t *)EFI_INVALID_TABLE_ADDR,
- /* Not used under Xen. */
- .boottime = (efi_boot_services_t *)EFI_INVALID_TABLE_ADDR,
- /* Not used under Xen. */
- .nr_tables = 0, /* Initialized later. */
- .tables = EFI_INVALID_TABLE_ADDR /* Initialized later. */
-};
-
-static const struct efi efi_xen __initconst = {
- .systab = NULL, /* Initialized later. */
- .runtime_version = 0, /* Initialized later. */
- .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,
- .get_time = xen_efi_get_time,
- .set_time = xen_efi_set_time,
- .get_wakeup_time = xen_efi_get_wakeup_time,
- .set_wakeup_time = xen_efi_set_wakeup_time,
- .get_variable = xen_efi_get_variable,
- .get_next_variable = xen_efi_get_next_variable,
- .set_variable = xen_efi_set_variable,
- .query_variable_info = xen_efi_query_variable_info,
- .update_capsule = xen_efi_update_capsule,
- .query_capsule_caps = xen_efi_query_capsule_caps,
- .get_next_high_mono_count = xen_efi_get_next_high_mono_count,
- .reset_system = NULL, /* Functionality provided by Xen. */
- .set_virtual_address_map = NULL, /* Not used under Xen. */
- .flags = 0 /* Initialized later. */
-};
-
-efi_system_table_t __init *xen_efi_probe(void)
-{
- struct xen_platform_op op = {
- .cmd = XENPF_firmware_info,
- .u.firmware_info = {
- .type = XEN_FW_EFI_INFO,
- .index = XEN_FW_EFI_CONFIG_TABLE
- }
- };
- union xenpf_efi_info *info = &op.u.firmware_info.u.efi_info;
-
- if (!xen_initial_domain() || HYPERVISOR_platform_op(&op) < 0)
- return NULL;
-
- /* Here we know that Xen runs on EFI platform. */
-
- efi = efi_xen;
-
- efi_systab_xen.tables = info->cfg.addr;
- efi_systab_xen.nr_tables = info->cfg.nent;
-
- op.cmd = XENPF_firmware_info;
- op.u.firmware_info.type = XEN_FW_EFI_INFO;
- op.u.firmware_info.index = XEN_FW_EFI_VENDOR;
- info->vendor.bufsz = sizeof(vendor);
- set_xen_guest_handle(info->vendor.name, vendor);
-
- if (HYPERVISOR_platform_op(&op) == 0) {
- efi_systab_xen.fw_vendor = __pa_symbol(vendor);
- efi_systab_xen.fw_revision = info->vendor.revision;
- } else
- efi_systab_xen.fw_vendor = __pa_symbol(L"UNKNOWN");
-
- op.cmd = XENPF_firmware_info;
- op.u.firmware_info.type = XEN_FW_EFI_INFO;
- op.u.firmware_info.index = XEN_FW_EFI_VERSION;
-
- if (HYPERVISOR_platform_op(&op) == 0)
- efi_systab_xen.hdr.revision = info->version;
-
- op.cmd = XENPF_firmware_info;
- op.u.firmware_info.type = XEN_FW_EFI_INFO;
- op.u.firmware_info.index = XEN_FW_EFI_RT_VERSION;
-
- if (HYPERVISOR_platform_op(&op) == 0)
- efi.runtime_version = info->version;
-
- return &efi_systab_xen;
-}
+EXPORT_SYMBOL_GPL(xen_efi_query_capsule_caps);