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From 2957e8bf43edf8de6e579ce1ed7f95e5bb4a1437 Mon Sep 17 00:00:00 2001
From: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Date: Mon, 14 Aug 2023 20:39:41 +0300
Subject: [PATCH 1/4] arm: qemu: Enable Bochs video support
Commit 716161663ec49 ("riscv: qemu: Enable Bochs video support") enables
a video console for QEMU RISC-V virtual machines using an emulated Bochs
VGA card. Similarly, enable it for ARM virtual machines as well.
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Link: https://lore.kernel.org/u-boot/20230814173944.288356-2-alpernebiyasak@gmail.com/
---
arch/arm/Kconfig | 4 ++++
board/emulation/qemu-arm/qemu-arm.env | 3 +++
doc/board/emulation/qemu-arm.rst | 4 ++++
3 files changed, 11 insertions(+)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 328e2ddc33af..d96e230e9ee8 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1036,6 +1036,10 @@ config ARCH_QEMU
imply DM_RTC
imply RTC_PL031
imply OF_HAS_PRIOR_STAGE
+ imply VIDEO
+ imply VIDEO_BOCHS
+ imply SYS_WHITE_ON_BLACK
+ imply SYS_CONSOLE_IS_IN_ENV
config ARCH_RMOBILE
bool "Renesas ARM SoCs"
diff --git a/board/emulation/qemu-arm/qemu-arm.env b/board/emulation/qemu-arm/qemu-arm.env
index e658d5ee7d63..86a99a2e8713 100644
--- a/board/emulation/qemu-arm/qemu-arm.env
+++ b/board/emulation/qemu-arm/qemu-arm.env
@@ -2,6 +2,9 @@
/* environment for qemu-arm and qemu-arm64 */
+stdin=serial
+stdout=serial,vidconsole
+stderr=serial,vidconsole
fdt_high=0xffffffff
initrd_high=0xffffffff
fdt_addr=0x40000000
diff --git a/doc/board/emulation/qemu-arm.rst b/doc/board/emulation/qemu-arm.rst
index 7291fa4a3150..c423fce76edd 100644
--- a/doc/board/emulation/qemu-arm.rst
+++ b/doc/board/emulation/qemu-arm.rst
@@ -67,6 +67,10 @@ Additional persistent U-Boot environment support can be added as follows:
Additional peripherals that have been tested to work in both U-Boot and Linux
can be enabled with the following command line parameters:
+- To add a video console, remove "-nographic" and add e.g.::
+
+ -serial stdio -device VGA
+
- To add a Serial ATA disk via an Intel ICH9 AHCI controller, pass e.g.::
-drive if=none,file=disk.img,format=raw,id=mydisk \
--
2.42.0
From 5330bc1c2ad84ba9ecc473f8c24d6e15b366adf9 Mon Sep 17 00:00:00 2001
From: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Date: Mon, 14 Aug 2023 20:39:42 +0300
Subject: [PATCH 2/4] arm: qemu: Enable PRE_CONSOLE_BUFFER
Commit 608b80b5b855 ("riscv: qemu: Enable PRE_CONSOLE_BUFFER") enables
buffering console messages for QEMU RISC-V virtual machines so those
printed before the video console is available will still show up on the
display. Similarly, enable it for ARM virtual machines as well.
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Link: https://lore.kernel.org/u-boot/20230814173944.288356-3-alpernebiyasak@gmail.com/
---
arch/arm/Kconfig | 1 +
board/emulation/qemu-arm/Kconfig | 4 ++++
2 files changed, 5 insertions(+)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index d96e230e9ee8..1cc2be55140a 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1040,6 +1040,7 @@ config ARCH_QEMU
imply VIDEO_BOCHS
imply SYS_WHITE_ON_BLACK
imply SYS_CONSOLE_IS_IN_ENV
+ imply PRE_CONSOLE_BUFFER
config ARCH_RMOBILE
bool "Renesas ARM SoCs"
diff --git a/board/emulation/qemu-arm/Kconfig b/board/emulation/qemu-arm/Kconfig
index ed9949651c4b..09c95413a541 100644
--- a/board/emulation/qemu-arm/Kconfig
+++ b/board/emulation/qemu-arm/Kconfig
@@ -12,6 +12,10 @@ config BOARD_SPECIFIC_OPTIONS # dummy
imply VIRTIO_NET
imply VIRTIO_BLK
+config PRE_CON_BUF_ADDR
+ hex
+ default 0x40100000
+
endif
if TARGET_QEMU_ARM_64BIT && !TFABOOT
--
2.42.0
From 7f666214855d062dc939ff54a0fa52fbde9f0391 Mon Sep 17 00:00:00 2001
From: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Date: Mon, 14 Aug 2023 20:39:43 +0300
Subject: [PATCH 3/4] arm: qemu: Enable usb keyboard as an input device
Commit 02be57caf730 ("riscv: qemu: Enable usb keyboard as an input
device") adds PCI xHCI support to QEMU RISC-V virtual machines and
enables using a USB keyboard as one of the input devices. Similarly,
enable those for ARM virtual machines as well.
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Link: https://lore.kernel.org/u-boot/20230814173944.288356-4-alpernebiyasak@gmail.com/
---
arch/arm/Kconfig | 5 +++++
board/emulation/qemu-arm/qemu-arm.c | 5 +++++
board/emulation/qemu-arm/qemu-arm.env | 2 +-
configs/qemu_arm64_defconfig | 2 --
configs/qemu_arm_defconfig | 2 --
doc/board/emulation/qemu-arm.rst | 4 ++++
6 files changed, 15 insertions(+), 5 deletions(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1cc2be55140a..4c739bd9bc82 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1041,6 +1041,11 @@ config ARCH_QEMU
imply SYS_WHITE_ON_BLACK
imply SYS_CONSOLE_IS_IN_ENV
imply PRE_CONSOLE_BUFFER
+ imply USB
+ imply USB_XHCI_HCD
+ imply USB_XHCI_PCI
+ imply USB_KEYBOARD
+ imply CMD_USB
config ARCH_RMOBILE
bool "Renesas ARM SoCs"
diff --git a/board/emulation/qemu-arm/qemu-arm.c b/board/emulation/qemu-arm/qemu-arm.c
index dfea0d92a3c8..942f1fff5717 100644
--- a/board/emulation/qemu-arm/qemu-arm.c
+++ b/board/emulation/qemu-arm/qemu-arm.c
@@ -11,6 +11,7 @@
#include <fdtdec.h>
#include <init.h>
#include <log.h>
+#include <usb.h>
#include <virtio_types.h>
#include <virtio.h>
@@ -114,6 +115,10 @@ int board_late_init(void)
*/
virtio_init();
+ /* start usb so that usb keyboard can be used as input device */
+ if (CONFIG_IS_ENABLED(USB_KEYBOARD))
+ usb_init();
+
return 0;
}
diff --git a/board/emulation/qemu-arm/qemu-arm.env b/board/emulation/qemu-arm/qemu-arm.env
index 86a99a2e8713..fb4adef281ed 100644
--- a/board/emulation/qemu-arm/qemu-arm.env
+++ b/board/emulation/qemu-arm/qemu-arm.env
@@ -2,7 +2,7 @@
/* environment for qemu-arm and qemu-arm64 */
-stdin=serial
+stdin=serial,usbkbd
stdout=serial,vidconsole
stderr=serial,vidconsole
fdt_high=0xffffffff
diff --git a/configs/qemu_arm64_defconfig b/configs/qemu_arm64_defconfig
index 94bd96678443..f6b8ae530a4a 100644
--- a/configs/qemu_arm64_defconfig
+++ b/configs/qemu_arm64_defconfig
@@ -35,7 +35,6 @@ CONFIG_CMD_NVEDIT_EFI=y
CONFIG_CMD_DFU=y
CONFIG_CMD_MTD=y
CONFIG_CMD_PCI=y
-CONFIG_CMD_USB=y
CONFIG_CMD_TPM=y
CONFIG_CMD_MTDPARTS=y
CONFIG_ENV_IS_IN_FLASH=y
@@ -68,7 +67,6 @@ CONFIG_SYSRESET=y
CONFIG_SYSRESET_CMD_POWEROFF=y
CONFIG_SYSRESET_PSCI=y
CONFIG_TPM2_MMIO=y
-CONFIG_USB=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_PCI=y
CONFIG_TPM=y
diff --git a/configs/qemu_arm_defconfig b/configs/qemu_arm_defconfig
index 7cb1e9f037ff..1347b86f34b1 100644
--- a/configs/qemu_arm_defconfig
+++ b/configs/qemu_arm_defconfig
@@ -36,7 +36,6 @@ CONFIG_CMD_NVEDIT_EFI=y
CONFIG_CMD_DFU=y
CONFIG_CMD_MTD=y
CONFIG_CMD_PCI=y
-CONFIG_CMD_USB=y
CONFIG_CMD_TPM=y
CONFIG_CMD_MTDPARTS=y
CONFIG_ENV_IS_IN_FLASH=y
@@ -69,7 +68,6 @@ CONFIG_SYSRESET=y
CONFIG_SYSRESET_CMD_POWEROFF=y
CONFIG_SYSRESET_PSCI=y
CONFIG_TPM2_MMIO=y
-CONFIG_USB=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_PCI=y
CONFIG_TPM=y
diff --git a/doc/board/emulation/qemu-arm.rst b/doc/board/emulation/qemu-arm.rst
index c423fce76edd..5481ef6da328 100644
--- a/doc/board/emulation/qemu-arm.rst
+++ b/doc/board/emulation/qemu-arm.rst
@@ -84,6 +84,10 @@ can be enabled with the following command line parameters:
-device usb-ehci,id=ehci
+- To add a USB keyboard attached to an emulated xHCI controller, pass e.g.::
+
+ -device qemu-xhci,id=xhci -device usb-kbd,bus=xhci.0
+
- To add an NVMe disk, pass e.g.::
-drive if=none,file=disk.img,id=mydisk -device nvme,drive=mydisk,serial=foo
--
2.42.0
From fcc1b6cb56beaaf90bf80928627a606f33a42c3c Mon Sep 17 00:00:00 2001
From: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Date: Mon, 14 Aug 2023 20:39:44 +0300
Subject: [PATCH 4/4] doc: qemu: arm: Add a section on booting Linux distros
Add an example qemu-system-aarch64 command that can make U-Boot on QEMU
boot into the Debian Installer, along with resulting console messages
from U-Boot, based on the existing documentation section for the x86
version.
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Link: https://lore.kernel.org/u-boot/20230814173944.288356-5-alpernebiyasak@gmail.com/
---
doc/board/emulation/qemu-arm.rst | 68 ++++++++++++++++++++++++++++++++
1 file changed, 68 insertions(+)
diff --git a/doc/board/emulation/qemu-arm.rst b/doc/board/emulation/qemu-arm.rst
index 5481ef6da328..1c91c7f3ac67 100644
--- a/doc/board/emulation/qemu-arm.rst
+++ b/doc/board/emulation/qemu-arm.rst
@@ -98,6 +98,74 @@ can be enabled with the following command line parameters:
These have been tested in QEMU 2.9.0 but should work in at least 2.5.0 as well.
+Booting distros
+---------------
+
+It is possible to install and boot a standard Linux distribution using
+qemu_arm64 by setting up a root disk::
+
+ qemu-img create root.img 20G
+
+then using the installer to install. For example, with Debian 12::
+
+ qemu-system-aarch64 \
+ -machine virt -cpu cortex-a53 -m 4G -smp 4 \
+ -bios u-boot.bin \
+ -serial stdio -device VGA \
+ -nic user,model=virtio-net-pci \
+ -device virtio-rng-pci \
+ -device qemu-xhci,id=xhci \
+ -device usb-kbd -device usb-tablet \
+ -drive if=virtio,file=debian-12.0.0-arm64-netinst.iso,format=raw,readonly=on,media=cdrom \
+ -drive if=virtio,file=root.img,format=raw,media=disk
+
+The output will be something like this::
+
+ U-Boot 2023.10-rc2-00075-gbe8fbe718e35 (Aug 11 2023 - 08:38:49 +0000)
+
+ DRAM: 4 GiB
+ Core: 51 devices, 14 uclasses, devicetree: board
+ Flash: 64 MiB
+ Loading Environment from Flash... *** Warning - bad CRC, using default environment
+
+ In: serial,usbkbd
+ Out: serial,vidconsole
+ Err: serial,vidconsole
+ Bus xhci_pci: Register 8001040 NbrPorts 8
+ Starting the controller
+ USB XHCI 1.00
+ scanning bus xhci_pci for devices... 3 USB Device(s) found
+ Net: eth0: virtio-net#32
+ Hit any key to stop autoboot: 0
+ Scanning for bootflows in all bootdevs
+ Seq Method State Uclass Part Name Filename
+ --- ----------- ------ -------- ---- ------------------------ ----------------
+ Scanning global bootmeth 'efi_mgr':
+ Scanning bootdev 'fw-cfg@9020000.bootdev':
+ fatal: no kernel available
+ scanning bus for devices...
+ Scanning bootdev 'virtio-blk#34.bootdev':
+ 0 efi ready virtio 2 virtio-blk#34.bootdev.par efi/boot/bootaa64.efi
+ ** Booting bootflow 'virtio-blk#34.bootdev.part_2' with efi
+ Using prior-stage device tree
+ Failed to load EFI variables
+ Error: writing contents
+ ** Unable to write file ubootefi.var **
+ Failed to persist EFI variables
+ Missing TPMv2 device for EFI_TCG_PROTOCOL
+ Booting /efi\boot\bootaa64.efi
+ Error: writing contents
+ ** Unable to write file ubootefi.var **
+ Failed to persist EFI variables
+ Welcome to GRUB!
+
+Standard boot looks through various available devices and finds the virtio
+disks, then boots from the first one. After a second or so the grub menu appears
+and you can work through the installer flow normally.
+
+After the installation, you can boot into the installed system by running QEMU
+again without the drive argument corresponding to the installer CD image.
+
Enabling TPMv2 support
----------------------
--
2.42.0
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