On 08/30/2022 10:46 PM, Huacai Chen wrote:
Hi, Tiezhu,
On Tue, Aug 30, 2022 at 7:10 PM Tiezhu Yang <yangtiezhu@xxxxxxxxxxx> wrote:
For now, BPF JIT for LoongArch is supported, update loongson3_defconfig to
enable BPF_JIT to allow the kernel to generate native code when a program
is loaded into the kernel, and also enable TEST_BPF to test BPF JIT.
Signed-off-by: Tiezhu Yang <yangtiezhu@xxxxxxxxxxx>
---
arch/loongarch/configs/loongson3_defconfig | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/loongarch/configs/loongson3_defconfig b/arch/loongarch/configs/loongson3_defconfig
index 3712552..93dc072 100644
--- a/arch/loongarch/configs/loongson3_defconfig
+++ b/arch/loongarch/configs/loongson3_defconfig
@@ -4,6 +4,7 @@ CONFIG_POSIX_MQUEUE=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_BPF_SYSCALL=y
+CONFIG_BPF_JIT=y
CONFIG_PREEMPT=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
@@ -801,3 +802,4 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_SCHEDSTATS=y
# CONFIG_DEBUG_PREEMPT is not set
# CONFIG_FTRACE is not set
+CONFIG_TEST_BPF=m
I don't want the test module be built by default, but I don't insist
if you have a strong requirement.
Hi Huacai,
It is useful to enable TEST_BPF in default config, otherwise we
need to use "make menuconfig" to select it manually if we want
to test bpf jit, and build it as a module by default has no side
effect, so I prefer to enable TEST_BPF in default config.
Thanks,
Tiezhu
