Re: [U-Boot] [PATCH v2 06/16] efi: sandbox: Adjust memory usage for sandbox

On 12/04/2017 10:28 PM, Simon Glass wrote:

With sandbox the U-Boot code is not mapped into the sandbox memory range so does not need to be excluded when allocating EFI memory. Update the EFI memory init code to take account of that.

Also use mapmem instead of a cast to convert a memory address to a pointer.

Signed-off-by: Simon Glass sjg@chromium.org

Changes in v2:

• Update to use mapmem instead of a cast

lib/efi_loader/efi_memory.c | 31 ++++++++++++++++++------------- 1 file changed, 18 insertions(+), 13 deletions(-)

diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c index e95896ca0a..3ad58d8930 100644 --- a/lib/efi_loader/efi_memory.c +++ b/lib/efi_loader/efi_memory.c @@ -10,6 +10,7 @@ #include <efi_loader.h> #include <inttypes.h> #include <malloc.h> +#include <mapmem.h> #include <watchdog.h> #include <asm/global_data.h> #include <linux/list_sort.h> @@ -366,7 +367,7 @@ efi_status_t efi_allocate_pool(int pool_type, unsigned long size, r = efi_allocate_pages(0, pool_type, num_pages, &t);

if (r == EFI_SUCCESS) {

• struct efi_pool_allocation *alloc = (void *)(uintptr_t)t;
  

• struct efi_pool_allocation *alloc = map_sysmem(t, size);
  

  alloc->num_pages = num_pages; *buffer = alloc->data; }

@@ -460,18 +461,22 @@ int efi_memory_init(void)

efi_add_known_memory();

• /* Add U-Boot */
• uboot_start = (gd->start_addr_sp - uboot_stack_size) & ~EFI_PAGE_MASK;
• uboot_pages = (gd->ram_top - uboot_start) >> EFI_PAGE_SHIFT;
• efi_add_memory_map(uboot_start, uboot_pages, EFI_LOADER_DATA, false);
• /* Add Runtime Services */
• runtime_start = (ulong)&__efi_runtime_start & ~EFI_PAGE_MASK;
• runtime_end = (ulong)&__efi_runtime_stop;
• runtime_end = (runtime_end + EFI_PAGE_MASK) & ~EFI_PAGE_MASK;
• runtime_pages = (runtime_end - runtime_start) >> EFI_PAGE_SHIFT;
• efi_add_memory_map(runtime_start, runtime_pages,

• 	   EFI_RUNTIME_SERVICES_CODE, false);
  

• if (!IS_ENABLED(CONFIG_SANDBOX)) {

• /* Add U-Boot */
  

• uboot_start = (gd->start_addr_sp - uboot_stack_size) &
  

• 		~EFI_PAGE_MASK;
  

• uboot_pages = (gd->ram_top - uboot_start) >> EFI_PAGE_SHIFT;
  

• efi_add_memory_map(uboot_start, uboot_pages, EFI_LOADER_DATA,
  

• 		   false);
  

• /* Add Runtime Services */
  

• runtime_start = (ulong)&__efi_runtime_start & ~EFI_PAGE_MASK;
  

• runtime_end = (ulong)&__efi_runtime_stop;
  

• runtime_end = (runtime_end + EFI_PAGE_MASK) & ~EFI_PAGE_MASK;
  

• runtime_pages = (runtime_end - runtime_start) >> EFI_PAGE_SHIFT;
  

• efi_add_memory_map(runtime_start, runtime_pages,
  

• 		   EFI_RUNTIME_SERVICES_CODE, false);
  

• }

#ifdef CONFIG_EFI_LOADER_BOUNCE_BUFFER /* Request a 32bit 64MB bounce buffer region */

bootefi selftest shows an error. You should setup the EFI memory for CONFIG_SANDBOX=y too.

Setting up 'ExitBootServices' Setting up 'ExitBootServices' succeeded lib/efi_selftest/efi_selftest.c(53): ERROR: GetMemoryMap did not return EFI_SUCCESS

Best regards

Heinrich