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new(driver/modern_bpf): Add ppc64le support for modern-bpf #1475

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merged 11 commits into from
Nov 15, 2023
Merged

new(driver/modern_bpf): Add ppc64le support for modern-bpf #1475

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6b96711
Add powerpc registers management and definitions to vmlinux.h
mdafsanhossain Sep 8, 2023
34a8de5
Include ppc64le vmlinux.h
mdafsanhossain Sep 8, 2023
5950f22
Check minimum kernel version for ppc64le
mdafsanhossain Sep 18, 2023
300cbbd
update(modern_bpf):Add ppc64le definitions
mdafsanhossain Sep 19, 2023
37a0712
vmlinux.h created on fedore 35
mdafsanhossain Sep 21, 2023
8978993
Skip SYSCALL redefinition on powerpc
mdafsanhossain Nov 6, 2023
90d67f1
Remove endif
mdafsanhossain Nov 7, 2023
60acbcf
Update README to add ppc64le modern-bpf as EXPERIMENTAL
mdafsanhossain Nov 8, 2023
9043393
Generated syscall_compat_* header files
mdafsanhossain Nov 8, 2023
84ccc70
Rename SYSCALL and TRACEPOINT to avoid conflicts
mdafsanhossain Nov 9, 2023
8ea66a7
powerpc support in bpf_in_ia32_syscall
mdafsanhossain Nov 13, 2023
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1 change: 1 addition & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,7 @@ Our drivers officially support the following architectures:
| **aarch64** | >= [3.16](https://github.com/torvalds/linux/commit/055b1212d141f1f398fca548f8147787c0b6253f) | >= 4.17 | >= 5.8 | _STABLE_ |
| **s390x** | >= 2.6 | >= [5.5](https://github.com/torvalds/linux/commit/6ae08ae3dea) | >= 5.8 | _EXPERIMENTAL_ |
| **riscv64** | >= [5.0](https://github.com/torvalds/linux/commit/5aeb1b36cedd3a1dfdbfe368629fed52dee34103) | N/A | N/A | _EXPERIMENTAL_ |
| **ppc64le** | N/A | N/A | >= 5.8 | _EXPERIMENTAL_ |


To access up-to-date status reports on Falco drivers kernel testing, please visit this [page](https://falcosecurity.github.io/libs/). It provides a list of supported syscalls as well as the [report](https://falcosecurity.github.io/libs/report/).
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794 changes: 406 additions & 388 deletions docs/report.md
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2 changes: 1 addition & 1 deletion driver/SCHEMA_VERSION
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@@ -1 +1 @@
2.12.3
2.12.4
1 change: 1 addition & 0 deletions driver/modern_bpf/CMakeLists.txt
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Expand Up @@ -41,6 +41,7 @@ string(REGEX MATCH "[0-9]+.[0-9]+" LINUX_KERNEL_VERSION ${UNAME_RESULT})
set(modern_bpf_min_kver_map_x86_64 5.8)
set(modern_bpf_min_kver_map_aarch64 5.8)
set(modern_bpf_min_kver_map_s390x 5.8)
set(modern_bpf_min_kver_map_ppc64le 5.8)
if (LINUX_KERNEL_VERSION VERSION_LESS ${modern_bpf_min_kver_map_${CMAKE_HOST_SYSTEM_PROCESSOR}})
message(WARNING "${MODERN_BPF_LOG_PREFIX} To run this driver you need a Linux kernel version >= ${modern_bpf_min_kver_map_${CMAKE_HOST_SYSTEM_PROCESSOR}} but actual kernel version is: ${UNAME_RESULT}")
endif()
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16 changes: 16 additions & 0 deletions driver/modern_bpf/definitions/missing_definitions.h
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Expand Up @@ -38,6 +38,13 @@
*/
#define _TIF_31BIT (1 << 16)

#elif defined(__TARGET_ARCH_powerpc)

/* See here for definition:
* https://github.com/torvalds/linux/blob/69cb6c6556ad89620547318439d6be8bb1629a5a/arch/powerpc/include/asm/thread_info.h#L126
*/
#define _TIF_32BIT (1 << 20)

#endif

/*=============================== ARCH SPECIFIC ===========================*/
Expand Down Expand Up @@ -170,6 +177,15 @@
#define O_DIRECT 0200000 /* direct disk access hint - currently ignored */
#define O_LARGEFILE 0400000

#elif defined(__TARGET_ARCH_powerpc)

/* `/arch/powerpc/include/uapi/asm/fcntl.h` from kernel source tree. */

#define O_DIRECTORY 040000 /* must be a directory */
#define O_NOFOLLOW 0100000 /* don't follow links */
#define O_LARGEFILE 0200000
#define O_DIRECT 0400000 /* direct disk access hint */

#endif

#define O_NOATIME 01000000
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