From: Heinrich Schuchardt <xypron.glpk@gmx.de>
Date: Wed, 22 Jul 2020 04:29:38 +0000 (+0200)
Subject: efi_loader: efi_current_var after SetVirtualAddressMap
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=01fa922bbbac378902ef85e522724dd7c7a10a8b;p=u-boot.git

efi_loader: efi_current_var after SetVirtualAddressMap

Variable efi_current_var is a pointer to a physical memory address that
becomes invalid after SetVirtualAddressMap(). Instead of converting it via
ConvertPointer() simply set it to NULL.

Fixes: b02a707152dc ("efi_loader: enable UEFI variables at runtime")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---

diff --git a/lib/efi_loader/efi_var_mem.c b/lib/efi_loader/efi_var_mem.c
index 7a2dba7dc2..856e5e1d56 100644
--- a/lib/efi_loader/efi_var_mem.c
+++ b/lib/efi_loader/efi_var_mem.c
@@ -231,6 +231,7 @@ static void EFIAPI __efi_runtime
 efi_var_mem_notify_virtual_address_map(struct efi_event *event, void *context)
 {
 	efi_convert_pointer(0, (void **)&efi_var_buf);
+	efi_current_var = NULL;
 }
 
 efi_status_t efi_var_mem_init(void)