| Message ID | 060d9fef332979fd5d53b1c28c13b2043a16ab25.1696965271.git.ritesh.list@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | [1/2] kvm-xfstests: install-kconfig: Use $ARCH-config instead of $KERN_ARCH-config | expand |
On Wed, Oct 11, 2023 at 12:46:30AM +0530, Ritesh Harjani (IBM) wrote: > $KERN_ARCH is used for make arguments. For configs let's use > $ARCH-config. This should not break anything since as of now we only > have arm64-config for which $ARCH and $KERN_ARCH is same. > > Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com> It would be much better to teach set_canoncalized_arch about the powerpc64le architecture. That way other scripts that use set_canoicalized_arch can correctly depend on KERN_ARCH. See run-fstests/util/arch_funcs: # There are multiple ways that CPU architectured can be named. # KERN_ARCH is what is used when specifying ARCH=xxx when building the # kernel. # # GCE_ARCH is what gets used when setting specifying the architecture # when creating the GCE image using the --architecture flag # ARCH (after being canonicalized by this function) is defined by # the Debian architecture port names[1] and is used internally # by gce-xfstests and kvm-xfstests. So for example, when we add # support for support for Power architectures, the ARCH name that should # be used is ppc64 or ppc64el. ... # This function takes as input a user-supplied architecture (which # generally should be a Debian port name, but users might use # a $(uname -m) instead. # function set_canonicalized_arch () { case "$1" in arm64|aarch64) ARCH="arm64" GCE_ARCH="ARM64" KERN_ARCH="arm64" ;; ... So basically, after calling set_canoncalized_arch, ARCH should be Debian architecture port name, GCE_ARCH (if not the empty string) is the name of the GCE architecture name, and KERN_ARCH should be what should be passed to the Kernel makefile as "make ARCH=$KERN_ARCH ..." - Ted
Hey Ritesh, I just pulled some changes from Eric Biggers into xfstests-bld which has a start on adding riscv64 support to kvm-xfstests. So far, he's updated libaio to a newer upstream version (newer is relative; the "new" version was last updated six years ago :-) for better RiscV support, and he's added RiscV support to set_canonicalized_arch(). I'd recommend that you start with the latest upstream version of xfstests-bld, and then add support for powerpcle64 by adding support to find_kernel_to_use() in run=fstests/util/parse_opt_funcs, and set_cross_compile() and get_kernel_file_info() in run-fstests/util-arch, since those changes in the 2/2 patch series[1] were clearly correct. (And Eric, you should take a look at those changes[1] for RiscV support.) [1] https://lore.kernel.org/all/eb1f8f0fb0ff9a6358129a2a45bd0c88421ac669.1696965271.git.ritesh.list@gmail.com/ I'd also encourage you to add support for the new architectures in selftests/appliance, since that will exercise building a kernel for the foreign architecture using cross-compilation, and then using qemu-system-$ARCH from kvm-xfstests. (Yes, kvm-xfstests is starting to get very much misnamed; but kvm is easier to type, and autocompletes much more nicely than qemu-<tab>. The string "kvm" also is sprinkled all over the xfstests-bld scripts, and I'm not convinced it's worth changing. That being said, I've added a qemu-xfstests script which gets installed into the user's bin directory; we'll see if that is something people feel strongly about using the new name.) Finally, since have two separate efforts to add support for new architectures to xfstests-bld, might I prevail on you to keep some notes about what's needed to bootstrap a new architecture? That might be helpful for some future developer. Many thanks! - Ted
diff --git a/kernel-build/install-kconfig b/kernel-build/install-kconfig index fc2a49a..f5b2b8e 100755 --- a/kernel-build/install-kconfig +++ b/kernel-build/install-kconfig @@ -140,8 +140,8 @@ fi FILES=("$CONFIG_FN") -if test -f "$KCONFIG_DIR/$KERN_ARCH-config" ; then - FILES+=("$KCONFIG_DIR/$KERN_ARCH-config") +if test -f "$KCONFIG_DIR/$ARCH-config" ; then + FILES+=("$KCONFIG_DIR/$ARCH-config") fi if test -n "$DO_BLKTESTS" ; then
$KERN_ARCH is used for make arguments. For configs let's use $ARCH-config. This should not break anything since as of now we only have arm64-config for which $ARCH and $KERN_ARCH is same. Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com> --- kernel-build/install-kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)