linux-kernel - [PATCH] efi/libstub: "Exiting bootservices" message

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Sun, 29 Aug 2021 14:49:55 +0200
From:   Heinrich Schuchardt <heinrich.schuchardt@...onical.com>
To:     Ard Biesheuvel <ardb@...nel.org>
Cc:     Atish Patra <atish.patra@....com>,
        Heinrich Schuchardt <xypron.gpk@....de>,
        linux-efi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Heinrich Schuchardt <heinrich.schuchardt@...onical.com>
Subject: [PATCH] efi/libstub: "Exiting bootservices" message

The message

    "Exiting boot services and installing virtual address map...\n"

is even shown if we have efi=novamap on the command line or the firmware
does not provide EFI_RT_SUPPORTED_SET_VIRTUAL_ADDRESS_MAP.

To avoid confusion we should print

    "Exiting boot services...\n"

in this case.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@...onical.com>
---
 drivers/firmware/efi/libstub/fdt.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/firmware/efi/libstub/fdt.c b/drivers/firmware/efi/libstub/fdt.c
index 365c3a43a198..d871b1ac4d8b 100644
--- a/drivers/firmware/efi/libstub/fdt.c
+++ b/drivers/firmware/efi/libstub/fdt.c
@@ -271,7 +271,10 @@ efi_status_t allocate_new_fdt_and_exit_boot(void *handle,
 		return status;
 	}
 
-	efi_info("Exiting boot services and installing virtual address map...\n");
+	if (efi_novamap)
+		efi_info("Exiting boot services...\n");
+	else
+		efi_info("Exiting boot services and installing virtual address map...\n");
 
 	map.map = &memory_map;
 	status = efi_allocate_pages(MAX_FDT_SIZE, new_fdt_addr, ULONG_MAX);
-- 
2.30.2