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authorRoy Franz <roy.franz@linaro.org>2013-09-22 15:45:36 -0700
committerMark Brown <broonie@linaro.org>2014-06-16 21:17:50 +0100
commit3cce6edd3ad71be57581f02cbc6538cf2d809584 (patch)
treef8dc0fd262218bd83a512c9278ec775894f16ca1
parent28c5dc61831ba954fa05b205665b62494981bda7 (diff)
downloadlinux-linaro-stable-3cce6edd3ad71be57581f02cbc6538cf2d809584.tar.gz
efi: generalize efi_get_memory_map()
Add arguments for returning the descriptor version and also the memory map key. The key is required for calling exit_boot_services(). Signed-off-by: Roy Franz <roy.franz@linaro.org> Signed-off-by: Matt Fleming <matt.fleming@intel.com> (cherry picked from commit 1c089c65f54b70261fdcb4c238986a979c11fad7) Signed-off-by: Mark Brown <broonie@linaro.org>
-rw-r--r--drivers/firmware/efi/efi-stub-helper.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index 561b9cf7745f..b314bf720272 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -49,7 +49,9 @@ static void efi_printk(efi_system_table_t *sys_table_arg, char *str)
static efi_status_t efi_get_memory_map(efi_system_table_t *sys_table_arg,
efi_memory_desc_t **map,
unsigned long *map_size,
- unsigned long *desc_size)
+ unsigned long *desc_size,
+ u32 *desc_ver,
+ unsigned long *key_ptr)
{
efi_memory_desc_t *m = NULL;
efi_status_t status;
@@ -77,6 +79,10 @@ again:
if (status != EFI_SUCCESS)
efi_call_phys1(sys_table_arg->boottime->free_pool, m);
+ if (key_ptr && status == EFI_SUCCESS)
+ *key_ptr = key;
+ if (desc_ver && status == EFI_SUCCESS)
+ *desc_ver = desc_version;
fail:
*map = m;
@@ -97,7 +103,8 @@ static efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg,
u64 max_addr = 0;
int i;
- status = efi_get_memory_map(sys_table_arg, &map, &map_size, &desc_size);
+ status = efi_get_memory_map(sys_table_arg, &map, &map_size, &desc_size,
+ NULL, NULL);
if (status != EFI_SUCCESS)
goto fail;
@@ -183,7 +190,8 @@ static efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg,
unsigned long nr_pages;
int i;
- status = efi_get_memory_map(sys_table_arg, &map, &map_size, &desc_size);
+ status = efi_get_memory_map(sys_table_arg, &map, &map_size, &desc_size,
+ NULL, NULL);
if (status != EFI_SUCCESS)
goto fail;