From: Josh Poimboeuf <jpoimboe@kernel.org> To: x86@kernel.org Cc: linux-kernel@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>, Mark Rutland <mark.rutland@arm.com>, Jason Baron <jbaron@akamai.com>, Steven Rostedt <rostedt@goodmis.org>, Ard Biesheuvel <ardb@kernel.org>, Christophe Leroy <christophe.leroy@csgroup.eu>, Paolo Bonzini <pbonzini@redhat.com>, Sean Christopherson <seanjc@google.com>, Sami Tolvanen <samitolvanen@google.com>, Nick Desaulniers <ndesaulniers@google.com>, Will McVicker <willmcvicker@google.com>, Kees Cook <keescook@chromium.org>, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 00/11] static_call: Improve NULL/ret0 handling Date: Tue, 21 Mar 2023 21:00:06 -0700 [thread overview] Message-ID: <cover.1679456900.git.jpoimboe@kernel.org> (raw) Peter pointed out that v1 had CFI violations on arm64 with CONFIG_CFI_CLANG. Then I realized there are already CFI violations today in the existing code. So this ended up turning into a complete rewrite of v1. Highlights include: - Several cleanups - Fix arm64 CFI violations - Make NULL pointer behavior consistent across configs - Merge NULL and RET0 into a single concept v1 can be found here: https://lkml.kernel.org/lkml/cover.1678474914.git.jpoimboe@kernel.org Josh Poimboeuf (11): static_call: Improve key type abstraction static_call: Flip key type union bit static_call: Remove static_call_mod_init() declaration static_call: Remove static_call.h dependency on cpu.h static_call: Make ARCH_ADD_TRAMP_KEY() generic static_call: "EXPORT_STATIC_CALL_TRAMP" -> "EXPORT_STATIC_CALL_RO" static_call: Reorganize static call headers arm64/static_call: Fix static call CFI violations static_call: Make NULL static calls consistent static_call: Remove static_call_cond() static_call: Remove DEFINE_STATIC_CALL_RET0() arch/Kconfig | 4 + arch/arm/include/asm/paravirt.h | 2 +- arch/arm64/include/asm/paravirt.h | 2 +- arch/arm64/include/asm/static_call.h | 29 ++ arch/powerpc/include/asm/static_call.h | 1 - arch/powerpc/kernel/irq.c | 2 +- arch/powerpc/kernel/static_call.c | 6 +- arch/x86/events/amd/brs.c | 2 +- arch/x86/events/amd/core.c | 2 +- arch/x86/events/core.c | 29 +- arch/x86/include/asm/kvm-x86-ops.h | 6 +- arch/x86/include/asm/kvm-x86-pmu-ops.h | 3 +- arch/x86/include/asm/kvm_host.h | 4 +- arch/x86/include/asm/paravirt.h | 2 +- arch/x86/include/asm/perf_event.h | 2 +- arch/x86/include/asm/preempt.h | 6 +- arch/x86/include/asm/static_call.h | 22 +- arch/x86/kernel/alternative.c | 6 - arch/x86/kernel/paravirt.c | 1 + arch/x86/kernel/static_call.c | 89 +----- arch/x86/kvm/irq.c | 2 +- arch/x86/kvm/lapic.c | 22 +- arch/x86/kvm/pmu.c | 4 +- arch/x86/kvm/x86.c | 28 +- block/bio.c | 1 + include/linux/entry-common.h | 2 +- include/linux/entry-kvm.h | 2 +- include/linux/kernel.h | 4 +- include/linux/module.h | 2 +- include/linux/sched.h | 2 +- include/linux/static_call.h | 369 ++++++++++------------ include/linux/static_call_types.h | 74 +---- kernel/Makefile | 2 +- kernel/cgroup/cgroup.c | 1 + kernel/events/core.c | 15 +- kernel/sched/core.c | 18 +- kernel/static_call.c | 13 + kernel/static_call_inline.c | 64 +++- security/keys/trusted-keys/trusted_core.c | 2 +- sound/soc/intel/avs/trace.c | 1 + tools/include/linux/static_call_types.h | 74 +---- 41 files changed, 369 insertions(+), 553 deletions(-) create mode 100644 arch/arm64/include/asm/static_call.h -- 2.39.2
WARNING: multiple messages have this Message-ID (diff)
From: Josh Poimboeuf <jpoimboe@kernel.org> To: x86@kernel.org Cc: linux-kernel@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>, Mark Rutland <mark.rutland@arm.com>, Jason Baron <jbaron@akamai.com>, Steven Rostedt <rostedt@goodmis.org>, Ard Biesheuvel <ardb@kernel.org>, Christophe Leroy <christophe.leroy@csgroup.eu>, Paolo Bonzini <pbonzini@redhat.com>, Sean Christopherson <seanjc@google.com>, Sami Tolvanen <samitolvanen@google.com>, Nick Desaulniers <ndesaulniers@google.com>, Will McVicker <willmcvicker@google.com>, Kees Cook <keescook@chromium.org>, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 00/11] static_call: Improve NULL/ret0 handling Date: Tue, 21 Mar 2023 21:00:06 -0700 [thread overview] Message-ID: <cover.1679456900.git.jpoimboe@kernel.org> (raw) Peter pointed out that v1 had CFI violations on arm64 with CONFIG_CFI_CLANG. Then I realized there are already CFI violations today in the existing code. So this ended up turning into a complete rewrite of v1. Highlights include: - Several cleanups - Fix arm64 CFI violations - Make NULL pointer behavior consistent across configs - Merge NULL and RET0 into a single concept v1 can be found here: https://lkml.kernel.org/lkml/cover.1678474914.git.jpoimboe@kernel.org Josh Poimboeuf (11): static_call: Improve key type abstraction static_call: Flip key type union bit static_call: Remove static_call_mod_init() declaration static_call: Remove static_call.h dependency on cpu.h static_call: Make ARCH_ADD_TRAMP_KEY() generic static_call: "EXPORT_STATIC_CALL_TRAMP" -> "EXPORT_STATIC_CALL_RO" static_call: Reorganize static call headers arm64/static_call: Fix static call CFI violations static_call: Make NULL static calls consistent static_call: Remove static_call_cond() static_call: Remove DEFINE_STATIC_CALL_RET0() arch/Kconfig | 4 + arch/arm/include/asm/paravirt.h | 2 +- arch/arm64/include/asm/paravirt.h | 2 +- arch/arm64/include/asm/static_call.h | 29 ++ arch/powerpc/include/asm/static_call.h | 1 - arch/powerpc/kernel/irq.c | 2 +- arch/powerpc/kernel/static_call.c | 6 +- arch/x86/events/amd/brs.c | 2 +- arch/x86/events/amd/core.c | 2 +- arch/x86/events/core.c | 29 +- arch/x86/include/asm/kvm-x86-ops.h | 6 +- arch/x86/include/asm/kvm-x86-pmu-ops.h | 3 +- arch/x86/include/asm/kvm_host.h | 4 +- arch/x86/include/asm/paravirt.h | 2 +- arch/x86/include/asm/perf_event.h | 2 +- arch/x86/include/asm/preempt.h | 6 +- arch/x86/include/asm/static_call.h | 22 +- arch/x86/kernel/alternative.c | 6 - arch/x86/kernel/paravirt.c | 1 + arch/x86/kernel/static_call.c | 89 +----- arch/x86/kvm/irq.c | 2 +- arch/x86/kvm/lapic.c | 22 +- arch/x86/kvm/pmu.c | 4 +- arch/x86/kvm/x86.c | 28 +- block/bio.c | 1 + include/linux/entry-common.h | 2 +- include/linux/entry-kvm.h | 2 +- include/linux/kernel.h | 4 +- include/linux/module.h | 2 +- include/linux/sched.h | 2 +- include/linux/static_call.h | 369 ++++++++++------------ include/linux/static_call_types.h | 74 +---- kernel/Makefile | 2 +- kernel/cgroup/cgroup.c | 1 + kernel/events/core.c | 15 +- kernel/sched/core.c | 18 +- kernel/static_call.c | 13 + kernel/static_call_inline.c | 64 +++- security/keys/trusted-keys/trusted_core.c | 2 +- sound/soc/intel/avs/trace.c | 1 + tools/include/linux/static_call_types.h | 74 +---- 41 files changed, 369 insertions(+), 553 deletions(-) create mode 100644 arch/arm64/include/asm/static_call.h -- 2.39.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2023-03-22 4:00 UTC|newest] Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-03-22 4:00 Josh Poimboeuf [this message] 2023-03-22 4:00 ` [PATCH v2 00/11] static_call: Improve NULL/ret0 handling Josh Poimboeuf 2023-03-22 4:00 ` [PATCH v2 01/11] static_call: Improve key type abstraction Josh Poimboeuf 2023-03-22 4:00 ` Josh Poimboeuf 2023-03-22 4:53 ` Josh Poimboeuf 2023-03-22 4:53 ` Josh Poimboeuf 2023-03-22 5:02 ` [PATCH v2.1 " Josh Poimboeuf 2023-03-22 5:02 ` Josh Poimboeuf 2023-03-22 4:00 ` [PATCH v2 02/11] static_call: Flip key type union bit Josh Poimboeuf 2023-03-22 4:00 ` Josh Poimboeuf 2023-03-22 5:03 ` [PATCH v2.1 " Josh Poimboeuf 2023-03-22 5:03 ` Josh Poimboeuf 2023-03-22 4:00 ` [PATCH v2 03/11] static_call: Remove static_call_mod_init() declaration Josh Poimboeuf 2023-03-22 4:00 ` Josh Poimboeuf 2023-03-22 4:00 ` [PATCH v2 04/11] static_call: Remove static_call.h dependency on cpu.h Josh Poimboeuf 2023-03-22 4:00 ` Josh Poimboeuf 2023-03-22 4:00 ` [PATCH v2 05/11] static_call: Make ARCH_ADD_TRAMP_KEY() generic Josh Poimboeuf 2023-03-22 4:00 ` Josh Poimboeuf 2023-03-22 4:00 ` [PATCH v2 06/11] static_call: "EXPORT_STATIC_CALL_TRAMP" -> "EXPORT_STATIC_CALL_RO" Josh Poimboeuf 2023-03-22 4:00 ` Josh Poimboeuf 2023-03-22 4:00 ` [PATCH v2 07/11] static_call: Reorganize static call headers Josh Poimboeuf 2023-03-22 4:00 ` Josh Poimboeuf 2023-03-22 4:00 ` [PATCH v2 08/11] arm64/static_call: Fix static call CFI violations Josh Poimboeuf 2023-03-22 4:00 ` Josh Poimboeuf 2023-03-22 12:22 ` Mark Rutland 2023-03-22 12:22 ` Mark Rutland 2023-03-22 14:19 ` Peter Zijlstra 2023-03-22 14:19 ` Peter Zijlstra 2023-03-22 18:26 ` Josh Poimboeuf 2023-03-22 18:26 ` Josh Poimboeuf 2023-03-22 18:09 ` Josh Poimboeuf 2023-03-22 18:09 ` Josh Poimboeuf 2023-03-22 18:07 ` Sami Tolvanen 2023-03-22 18:07 ` Sami Tolvanen 2023-03-22 18:33 ` Josh Poimboeuf 2023-03-22 18:33 ` Josh Poimboeuf 2023-03-22 4:00 ` [PATCH v2 09/11] static_call: Make NULL static calls consistent Josh Poimboeuf 2023-03-22 4:00 ` Josh Poimboeuf 2023-03-22 14:45 ` Peter Zijlstra 2023-03-22 14:45 ` Peter Zijlstra 2023-03-22 14:59 ` Peter Zijlstra 2023-03-22 14:59 ` Peter Zijlstra 2023-03-22 18:35 ` Josh Poimboeuf 2023-03-22 18:35 ` Josh Poimboeuf 2023-03-22 15:04 ` Christophe Leroy 2023-03-22 15:04 ` Christophe Leroy 2023-03-22 4:00 ` [PATCH v2 10/11] static_call: Remove static_call_cond() Josh Poimboeuf 2023-03-22 4:00 ` Josh Poimboeuf 2023-03-22 4:00 ` [PATCH v2 11/11] static_call: Remove DEFINE_STATIC_CALL_RET0() Josh Poimboeuf 2023-03-22 4:00 ` Josh Poimboeuf 2023-03-22 15:04 ` Christophe Leroy 2023-03-22 15:04 ` Christophe Leroy 2023-03-22 18:50 ` Josh Poimboeuf 2023-03-22 18:50 ` Josh Poimboeuf 2023-03-22 15:15 ` Peter Zijlstra 2023-03-22 15:15 ` Peter Zijlstra 2023-03-22 18:45 ` Josh Poimboeuf 2023-03-22 18:45 ` Josh Poimboeuf
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