u-boot.git/common/qfw.c, branch master Unnamed repository; edit this file 'description' to name the repository. qfw: Fix segfault from uninitialized variables in sandbox 2025-11-11T17:54:42+00:00 Kory Maincent (TI.com) kory.maincent@bootlin.com 2025-11-04T09:58:01+00:00 664cdc5fd524db0c09c1200e89e65207a3b772a4 There are cases where qfw_read_entry() does not set the output parameter passed by address. This occurs with qfw_sandbox_read_entry_dma, which leaves the size variables uninitialized and causes a segfault when running bootflow scan in U-Boot sandbox. $ ./u-boot ... U-Boot 2026.01-rc1-00199-gc2637036b8f0 (Nov 04 2025 - 10:32:21 +0100) ... Hit any key to stop autoboot: 0 => bootflow scan efi_var_to_file() Cannot persist EFI variables without system partition efi_tcg2_register() Missing TPMv2 device for EFI_TCG_PROTOCOL efi_rng_register() Missing RNG device for EFI_RNG_PROTOCOL scanning bus for devices... [3] 1015761 segmentation fault (core dumped) ./u-boot Initalize all these variables to 0 to fix this issue. Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> 
There are cases where qfw_read_entry() does not set the output parameter
passed by address. This occurs with qfw_sandbox_read_entry_dma, which
leaves the size variables uninitialized and causes a segfault when running
bootflow scan in U-Boot sandbox.

$ ./u-boot
...
U-Boot 2026.01-rc1-00199-gc2637036b8f0 (Nov 04 2025 - 10:32:21 +0100)
...
Hit any key to stop autoboot: 0
=> bootflow scan
     efi_var_to_file() Cannot persist EFI variables without system partition
   efi_tcg2_register() Missing TPMv2 device for EFI_TCG_PROTOCOL
    efi_rng_register() Missing RNG device for EFI_RNG_PROTOCOL
scanning bus for devices...
[3]    1015761 segmentation fault (core dumped)  ./u-boot

Initalize all these variables to 0 to fix this issue.

Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com>
qemu: Move qfw kernel setup into a common file 2023-02-06T18:04:53+00:00 Simon Glass sjg@chromium.org 2023-01-28T22:00:23+00:00 00fa989eab2f75c450477d00e335aa05402e7fe9 This is currently in the cmd/ file but we want to call it from a driver. Move it into a common place. Tidy up the header-file order while we are here. Signed-off-by: Simon Glass <sjg@chromium.org> 
This is currently in the cmd/ file but we want to call it from a driver.
Move it into a common place. Tidy up the header-file order while we are
here.

Signed-off-by: Simon Glass <sjg@chromium.org>
x86: qemu: move QFW to its own uclass 2021-04-12T21:44:55+00:00 Asherah Connor ashe@kivikakk.ee 2021-03-19T07:21:40+00:00 5b0b43e0e25dbeed62a2155e7f3be562b9ceb9bd We move qfw into its own uclass and split the PIO functions into a specific driver for that uclass. The PIO driver is selected in the qemu-x86 board config (this covers x86 and x86_64). include/qfw.h is cleaned up and documentation added. Signed-off-by: Asherah Connor <ashe@kivikakk.ee> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> 
We move qfw into its own uclass and split the PIO functions into a
specific driver for that uclass.  The PIO driver is selected in the
qemu-x86 board config (this covers x86 and x86_64).

include/qfw.h is cleaned up and documentation added.

Signed-off-by: Asherah Connor <ashe@kivikakk.ee>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>