From: Thomas Weißschuh linux@weissschuh.net
[ Upstream commit bdeeeaba83682225a7bf5f100fe8652a59590d33 ]
qemu for LoongArch does not work properly with direct kernel boot. The kernel will panic during initialization and hang without any output.
When booting in EFI mode everything work correctly.
While users most likely don't have the LoongArch EFI binary installed at least an explicit error about 'file not found' is better than a hanging test without output that can never succeed.
Link: https://lore.kernel.org/loongarch/1738d60a-df3a-4102-b1da-d16a29b6e06a@t-8ch... Signed-off-by: Thomas Weißschuh linux@weissschuh.net Acked-by: Willy Tarreau w@1wt.eu Link: https://lore.kernel.org/r/20231031-nolibc-out-of-tree-v1-1-47c92f73590a@weis... Signed-off-by: Sasha Levin sashal@kernel.org --- Makefile | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/Makefile b/Makefile index 500edb9d9f15..33d118fbb432 100644 --- a/Makefile +++ b/Makefile @@ -584,6 +584,13 @@ ifdef config-build # *config targets only - make sure prerequisites are updated, and descend # in scripts/kconfig to make the *config target
+QEMU_BIOS_DIR = /usr/share/edk2/ +QEMU_BIOS_loongarch = $(QEMU_BIOS_DIR)/loongarch64/OVMF_CODE.fd + +ifneq ($(QEMU_BIOS_$(XARCH)),) +QEMU_ARGS_BIOS = -bios $(QEMU_BIOS_$(XARCH)) +endif + # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. # KBUILD_DEFCONFIG may point out an alternative default configuration # used for 'make defconfig' @@ -1375,7 +1382,7 @@ _modinst_: @sed 's:^:kernel/:' modules.order > $(MODLIB)/modules.order @sed 's:^:kernel/:' modules.builtin > $(MODLIB)/modules.builtin @cp -f $(objtree)/modules.builtin.modinfo $(MODLIB)/ - $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst + $(Q)$(MAKE) $(QEMU_ARGS_BIOS) -f $(srctree)/scripts/Makefile.modinst
# This depmod is only for convenience to give the initial # boot a modules.dep even before / is mounted read-write. However the