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Message-ID: <52117f9c-b691-409f-ad2a-a25f53a9433d@huaweicloud.com>
Date: Sat, 30 Mar 2024 18:12:57 +0800
From: Pu Lehui <pulehui@...weicloud.com>
To: Eduard Zingerman <eddyz87@...il.com>, <bpf@...r.kernel.org>,
<linux-riscv@...ts.infradead.org>, <netdev@...r.kernel.org>
CC: Björn Töpel <bjorn@...nel.org>, Alexei Starovoitov
<ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, Andrii Nakryiko
<andrii@...nel.org>, Martin KaFai Lau <martin.lau@...ux.dev>, Song Liu
<song@...nel.org>, Yonghong Song <yhs@...com>, John Fastabend
<john.fastabend@...il.com>, KP Singh <kpsingh@...nel.org>, Stanislav Fomichev
<sdf@...gle.com>, Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
Mykola Lysenko <mykolal@...com>, Manu Bretelle <chantr4@...il.com>, Pu Lehui
<pulehui@...wei.com>
Subject: Re: [PATCH bpf-next 0/5] Support local vmtest for riscv64
On 2024/3/30 3:46, Eduard Zingerman wrote:
> On Fri, 2024-03-29 at 18:10 +0800, Pu Lehui wrote:
> [...]
>
>>> Apparently jammy does not have binaries built for riscv64, or I'm failing to find correct mirror.
>>> Could you please provide some instructions on how to prepare rootfs?
>>
>> Hi Eduard, We need the mirror repository of ubuntu-ports, you could try
>> http://de.ports.ubuntu.com/.
>
> Hi Pu, thank you this mirrorm it works.
>
> Unfortunately my local setup is still not good enough.
> I've installed cross-riscv64-gcc14 but it seems that a few more
> libraries are necessary, as I get the following compilation errors: >
> $ PLATFORM=riscv64 CROSS_COMPILE=riscv64-suse-linux- ./vmtest.sh -- ./test_verifier
> ... kernel compiles ok ...
> ../../../../scripts/sign-file.c:25:10: fatal error: openssl/opensslv.h: No such file or directory
> 25 | #include <openssl/opensslv.h>
> | ^~~~~~~~~~~~~~~~~~~~
> compilation terminated.
> CC /home/eddy/work/bpf-next/tools/testing/selftests/bpf/tools/build/host/libbpf/sharedobjs/bpf.o
> In file included from nlattr.c:14:
> libbpf_internal.h:19:10: fatal error: libelf.h: No such file or directory
> 19 | #include <libelf.h>
> ...
>
> Looks like I won't be able to test this patch-set, unless you have
> some writeup on how to create a riscv64 dev environment at hand.
> Sorry for the noise
Yeah, environmental issues are indeed a developer's nightmare. I will
try to do something for the newcomers of riscv64 bpf. At present, I have
simply built a docker local vmtest environment [0] based on Bjorn's
riscv-cross-builder. We can directly run vmtest within this environment.
Hopefully it will help.
Link: https://github.com/pulehui/riscv-cross-builder/tree/vmtest [0]
PS: Since the current rootfs of riscv64 is not in the INDEX, I simply
modified vmtest.sh to support local rootfs. And we can use it by:
```
PLATFORM=riscv64 CROSS_COMPILE=riscv64-linux-gnu- \
tools/testing/selftests/bpf/vmtest.sh -l /rootfs -- \
./test_progs -d \
\"$(cat tools/testing/selftests/bpf/DENYLIST.riscv64 \
| cut -d'#' -f1 \
| sed -e 's/^[[:space:]]*//' \
-e 's/[[:space:]]*$//' \
| tr -s '\n' ','\
)\"
```
diff --git a/tools/testing/selftests/bpf/vmtest.sh
b/tools/testing/selftests/bpf/vmtest.sh
index f6889de9b498..17aff708c416 100755
--- a/tools/testing/selftests/bpf/vmtest.sh
+++ b/tools/testing/selftests/bpf/vmtest.sh
@@ -148,6 +148,21 @@ download_rootfs()
zstd -d | sudo tar -C "$dir" -x
}
+load_rootfs()
+{
+ local image_dir="$1"
+ local rootfsversion="$2"
+ local dir="$3"
+
+ if ! which zstd &> /dev/null; then
+ echo 'Could not find "zstd" on the system, please install zstd'
+ exit 1
+ fi
+
+ cat "${image_dir}/libbpf-vmtest-rootfs-$rootfsversion.tar.zst" |
+ zstd -d | sudo tar -C "$dir" -x
+}
+
recompile_kernel()
{
local kernel_checkout="$1"
@@ -234,6 +249,7 @@ EOF
create_vm_image()
{
+ local local_image_dir="$1"
local rootfs_img="${OUTPUT_DIR}/${ROOTFS_IMAGE}"
local mount_dir="${OUTPUT_DIR}/${MOUNT_DIR}"
@@ -245,7 +261,11 @@ create_vm_image()
mkfs.ext4 -q "${rootfs_img}"
mount_image
- download_rootfs "$(newest_rootfs_version)" "${mount_dir}"
+ if [[ "${local_image_dir}" == "" ]]; then
+ download_rootfs "$(newest_rootfs_version)" "${mount_dir}"
+ else
+ load_rootfs "${local_image_dir}" "$(newest_rootfs_version)"
"${mount_dir}"
+ fi
unmount_image
}
@@ -363,12 +383,16 @@ main()
local update_image="no"
local exit_command="poweroff -f"
local debug_shell="no"
+ local local_image_dir=""
- while getopts ':hskid:j:' opt; do
+ while getopts ':hskil:d:j:' opt; do
case ${opt} in
i)
update_image="yes"
;;
+ l)
+ local_image_dir="$OPTARG"
+ ;;
d)
OUTPUT_DIR="$OPTARG"
;;
@@ -445,7 +469,7 @@ main()
fi
if [[ "${update_image}" == "yes" ]]; then
- create_vm_image
+ create_vm_image "${local_image_dir}"
fi
update_selftests "${kernel_checkout}" "${make_command}"
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Subject: Re: [PATCH bpf-next 0/5] Support local vmtest for riscv64
To: Eduard Zingerman <eddyz87@...il.com>, <bpf@...r.kernel.org>,
<linux-riscv@...ts.infradead.org>, <netdev@...r.kernel.org>
CC: =?UTF-8?B?QmrDtnJuIFTDtnBlbA==?= <bjorn@...nel.org>, Alexei Starovoitov
<ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, Andrii Nakryiko
<andrii@...nel.org>, Martin KaFai Lau <martin.lau@...ux.dev>, Song Liu
<song@...nel.org>, Yonghong Song <yhs@...com>, John Fastabend
<john.fastabend@...il.com>, KP Singh <kpsingh@...nel.org>, Stanislav Fomichev
<sdf@...gle.com>, Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
Mykola Lysenko <mykolal@...com>, Manu Bretelle <chantr4@...il.com>, Pu Lehui
<pulehui@...wei.com>
References: <20240328124916.293173-1-pulehui@...weicloud.com>
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From: Pu Lehui <pulehui@...weicloud.com>
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On 2024/3/30 3:46, Eduard Zingerman wrote:
> On Fri, 2024-03-29 at 18:10 +0800, Pu Lehui wrote:
> [...]
>
>>> Apparently jammy does not have binaries built for riscv64, or I'm failing to find correct mirror.
>>> Could you please provide some instructions on how to prepare rootfs?
>>
>> Hi Eduard, We need the mirror repository of ubuntu-ports, you could try
>> http://de.ports.ubuntu.com/.
>
> Hi Pu, thank you this mirrorm it works.
>
> Unfortunately my local setup is still not good enough.
> I've installed cross-riscv64-gcc14 but it seems that a few more
> libraries are necessary, as I get the following compilation errors: >
> $ PLATFORM=riscv64 CROSS_COMPILE=riscv64-suse-linux- ./vmtest.sh -- ./test_verifier
> ... kernel compiles ok ...
> ../../../../scripts/sign-file.c:25:10: fatal error: openssl/opensslv.h: No such file or directory
> 25 | #include <openssl/opensslv.h>
> | ^~~~~~~~~~~~~~~~~~~~
> compilation terminated.
> CC /home/eddy/work/bpf-next/tools/testing/selftests/bpf/tools/build/host/libbpf/sharedobjs/bpf.o
> In file included from nlattr.c:14:
> libbpf_internal.h:19:10: fatal error: libelf.h: No such file or directory
> 19 | #include <libelf.h>
> ...
>
> Looks like I won't be able to test this patch-set, unless you have
> some writeup on how to create a riscv64 dev environment at hand.
> Sorry for the noise
Yeah, environmental issues are indeed a developer's nightmare. I will
try to do something for the newcomers of riscv64 bpf. At present, I have
simply built a docker local vmtest environment [0] based on Bjorn's
riscv-cross-builder. We can directly run vmtest within this environment.
Hopefully it will help.
Link: https://github.com/pulehui/riscv-cross-builder/tree/vmtest [0]
PS: Since the current rootfs of riscv64 is not in the INDEX, I simply
modified vmtest.sh to support local rootfs. And we can use it by:
```
PLATFORM=riscv64 CROSS_COMPILE=riscv64-linux-gnu- \
tools/testing/selftests/bpf/vmtest.sh -l /rootfs -- \
./test_progs -d \
\"$(cat tools/testing/selftests/bpf/DENYLIST.riscv64 \
| cut -d'#' -f1 \
| sed -e 's/^[[:space:]]*//' \
-e 's/[[:space:]]*$//' \
| tr -s '\n' ','\
)\"
```
diff --git a/tools/testing/selftests/bpf/vmtest.sh
b/tools/testing/selftests/bpf/vmtest.sh
index f6889de9b498..17aff708c416 100755
--- a/tools/testing/selftests/bpf/vmtest.sh
+++ b/tools/testing/selftests/bpf/vmtest.sh
@@ -148,6 +148,21 @@ download_rootfs()
zstd -d | sudo tar -C "$dir" -x
}
+load_rootfs()
+{
+ local image_dir="$1"
+ local rootfsversion="$2"
+ local dir="$3"
+
+ if ! which zstd &> /dev/null; then
+ echo 'Could not find "zstd" on the system, please install zstd'
+ exit 1
+ fi
+
+ cat "${image_dir}/libbpf-vmtest-rootfs-$rootfsversion.tar.zst" |
+ zstd -d | sudo tar -C "$dir" -x
+}
+
recompile_kernel()
{
local kernel_checkout="$1"
@@ -234,6 +249,7 @@ EOF
create_vm_image()
{
+ local local_image_dir="$1"
local rootfs_img="${OUTPUT_DIR}/${ROOTFS_IMAGE}"
local mount_dir="${OUTPUT_DIR}/${MOUNT_DIR}"
@@ -245,7 +261,11 @@ create_vm_image()
mkfs.ext4 -q "${rootfs_img}"
mount_image
- download_rootfs "$(newest_rootfs_version)" "${mount_dir}"
+ if [[ "${local_image_dir}" == "" ]]; then
+ download_rootfs "$(newest_rootfs_version)" "${mount_dir}"
+ else
+ load_rootfs "${local_image_dir}" "$(newest_rootfs_version)"
"${mount_dir}"
+ fi
unmount_image
}
@@ -363,12 +383,16 @@ main()
local update_image="no"
local exit_command="poweroff -f"
local debug_shell="no"
+ local local_image_dir=""
- while getopts ':hskid:j:' opt; do
+ while getopts ':hskil:d:j:' opt; do
case ${opt} in
i)
update_image="yes"
;;
+ l)
+ local_image_dir="$OPTARG"
+ ;;
d)
OUTPUT_DIR="$OPTARG"
;;
@@ -445,7 +469,7 @@ main()
fi
if [[ "${update_image}" == "yes" ]]; then
- create_vm_image
+ create_vm_image "${local_image_dir}"
fi
update_selftests "${kernel_checkout}" "${make_command}"
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