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authorSimon Glass <[email protected]>2025-03-06 07:31:24 -0700
committerHeinrich Schuchardt <[email protected]>2025-04-11 13:20:37 +0200
commit7b269a2bd64aae7fe51f03f8e0b7d50cc9a2faee (patch)
tree1563eef1865751d00f1b99fe097593d60f2260f0 /lib/efi_loader
parent6f7fb8d29f26e8d67bde9717f4679e2df45724bc (diff)
efi_loader: Install the ACPI table from the bloblist
When BLOBLIST_TABLES is used, the ACPI tables are not currently added to the list of EFI tables. While we don't want to create a new memory region, we do want to tell EFI about the tables. Fix this by covering this case. At some point the non-bloblist code can likely be removed. Signed-off-by: Simon Glass <[email protected]> Fixes: 3da59ee9579 ("efi_loader: Avoid mapping the ACPI tables twice") Signed-off-by: Patrick Rudolph <[email protected]>
Diffstat (limited to 'lib/efi_loader')
-rw-r--r--lib/efi_loader/efi_acpi.c42
1 files changed, 28 insertions, 14 deletions
diff --git a/lib/efi_loader/efi_acpi.c b/lib/efi_loader/efi_acpi.c
index 4422b31ac6a..046986a7518 100644
--- a/lib/efi_loader/efi_acpi.c
+++ b/lib/efi_loader/efi_acpi.c
@@ -7,6 +7,7 @@
#define LOG_CATEGORY LOGC_EFI
+#include <bloblist.h>
#include <efi_loader.h>
#include <log.h>
#include <mapmem.h>
@@ -34,25 +35,38 @@ efi_status_t efi_acpi_register(void)
* add_u_boot_and_runtime(). At some point that function could create a
* more detailed map.
*/
- if (IS_ENABLED(CONFIG_BLOBLIST_TABLES))
- return EFI_SUCCESS;
-
- /* Mark space used for tables */
- start = ALIGN_DOWN(gd->arch.table_start, EFI_PAGE_MASK);
- end = ALIGN(gd->arch.table_end, EFI_PAGE_MASK);
- ret = efi_add_memory_map(start, end - start, EFI_ACPI_RECLAIM_MEMORY);
- if (ret != EFI_SUCCESS)
- return ret;
- if (gd->arch.table_start_high) {
- start = ALIGN_DOWN(gd->arch.table_start_high, EFI_PAGE_MASK);
- end = ALIGN(gd->arch.table_end_high, EFI_PAGE_MASK);
+ if (IS_ENABLED(CONFIG_BLOBLIST_TABLES)) {
+ int size;
+ void *tab = bloblist_get_blob(BLOBLISTT_ACPI_TABLES, &size);
+
+ if (!tab)
+ return EFI_NOT_FOUND;
+ addr = map_to_sysmem(tab);
+
+ ret = efi_add_memory_map(addr, size,
+ EFI_ACPI_RECLAIM_MEMORY);
+ if (ret != EFI_SUCCESS)
+ return ret;
+ } else {
+ /* Mark space used for tables */
+ start = ALIGN_DOWN(gd->arch.table_start, EFI_PAGE_MASK);
+ end = ALIGN(gd->arch.table_end, EFI_PAGE_MASK);
ret = efi_add_memory_map(start, end - start,
EFI_ACPI_RECLAIM_MEMORY);
if (ret != EFI_SUCCESS)
return ret;
- }
+ if (gd->arch.table_start_high) {
+ start = ALIGN_DOWN(gd->arch.table_start_high,
+ EFI_PAGE_MASK);
+ end = ALIGN(gd->arch.table_end_high, EFI_PAGE_MASK);
+ ret = efi_add_memory_map(start, end - start,
+ EFI_ACPI_RECLAIM_MEMORY);
+ if (ret != EFI_SUCCESS)
+ return ret;
+ }
- addr = gd_acpi_start();
+ addr = gd_acpi_start();
+ }
log_debug("EFI using ACPI tables at %lx\n", addr);
/* And expose them to our EFI payload */