[tip:efi/core] efi/x86: Add debug code to print cooked memmap

[tip-bot for Dave Young]

Commit-ID:  22c091d02a5422d2825a4fb1af71e5a62f9e4d0f
Gitweb:     http://git.kernel.org/tip/22c091d02a5422d2825a4fb1af71e5a62f9e4d0f
Author:     Dave Young <dyoung@xxxxxxxxxx>
AuthorDate: Tue, 31 Jan 2017 13:21:41 +0000
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Wed, 1 Feb 2017 08:45:46 +0100

efi/x86: Add debug code to print cooked memmap

It is not obvious if the reserved boot area are added correctly, add a
efi_print_memmap() call to print the new memmap.

Tested-by: Nicolai Stange <nicstange@xxxxxxxxx>
Signed-off-by: Dave Young <dyoung@xxxxxxxxxx>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
Reviewed-by: Nicolai Stange <nicstange@xxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: linux-efi@xxxxxxxxxxxxxxx
Link: http://lkml.kernel.org/r/1485868902-20401-10-git-send-email-ard.biesheuvel@xxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 arch/x86/platform/efi/efi.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 0d4becf..565dff3 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -955,6 +955,11 @@ static void __init __efi_enter_virtual_mode(void)
 		return;
 	}
 
+	if (efi_enabled(EFI_DBG)) {
+		pr_info("EFI runtime memory map:\n");
+		efi_print_memmap();
+	}
+
 	BUG_ON(!efi.systab);
 
 	if (efi_setup_page_tables(pa, 1 << pg_shift)) {