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[U-Boot,v8,27/30] efi_loader: efi_allocate_pages is too restrictive

Message ID 20180618140835.195901-28-sjg@chromium.org
State Superseded
Delegated to: Alexander Graf
Headers show
Series efi: Enable sandbox support for EFI loader | expand

Commit Message

Simon Glass June 18, 2018, 2:08 p.m. UTC 
From: Heinrich Schuchardt <xypron.glpk@gmx.de>

When running on the sandbox the stack is not necessarily at a higher memory
address than the highest free memory.

There is no reason why the checking of the highest memory address should be
more restrictive for EFI_ALLOCATE_ANY_PAGES than for
EFI_ALLOCATE_MAX_ADDRESS.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
[agraf: use -1ULL instead]
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v8: None
Changes in v7: None
Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None

 lib/efi_loader/efi_memory.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c
index 856caa4a40..7804adacd2 100644
--- a/lib/efi_loader/efi_memory.c
+++ b/lib/efi_loader/efi_memory.c
@@ -315,7 +315,7 @@  efi_status_t efi_allocate_pages(int type, int memory_type,
 	switch (type) {
 	case EFI_ALLOCATE_ANY_PAGES:
 		/* Any page */
-		addr = efi_find_free_memory(len, gd->start_addr_sp);
+		addr = efi_find_free_memory(len, -1ULL);
 		if (!addr) {
 			r = EFI_NOT_FOUND;
 			break;