From: guoren@kernel.org To: arnd@arndb.de, guoren@kernel.org, palmer@rivosinc.com, tglx@linutronix.de, peterz@infradead.org, luto@kernel.org, conor.dooley@microchip.com, heiko@sntech.de, jszhang@kernel.org, lazyparser@gmail.com, falcon@tinylab.org, chenhuacai@kernel.org, apatel@ventanamicro.com, atishp@atishpatra.org, palmer@dabbelt.com, paul.walmsley@sifive.com, mark.rutland@arm.com, zouyipeng@huawei.com, bigeasy@linutronix.de, David.Laight@aculab.com, chenzhongjin@huawei.com, greentime.hu@sifive.com, andy.chiu@sifive.com, ben@decadent.org.uk Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Guo Ren <guoren@linux.alibaba.com> Subject: [PATCH -next V9 00/14] riscv: Add GENERIC_ENTRY support and related features Date: Tue, 29 Nov 2022 22:40:45 -0500 [thread overview] Message-ID: <20221130034059.826599-1-guoren@kernel.org> (raw) From: Guo Ren <guoren@linux.alibaba.com> The patches convert riscv to use the generic entry infrastructure from kernel/entry/*. Additionally, add independent irq stacks (IRQ_STACKS) for percpu to prevent kernel stack overflows. Add generic_entry based STACKLEAK support. Some optimization for entry.S with new .macro and merge ret_from_kernel_thread into ret_from_fork. We have tested it with rv64, rv32, rv64 + 32rootfs, all are passed. You can directly try it with: [1] https://github.com/guoren83/linux/tree/generic_entry_v9 Any reviews and tests are helpful. v9: - Fixup NR_syscalls check (by Ben Hutchings) - Add Tested-by: Jisheng Zhang v8: https://lore.kernel.org/linux-riscv/20221103075047.1634923-1-guoren@kernel.org/ - Rebase on palmer/for-next branch (20221102) - Add save/restore_from_x5_to_x31 .macro (JishengZhang) - Consolidate ret_from_kernel_thread into ret_from_fork (JishengZhang) - Optimize __noinstr_section comment (JiangshanLai) v7: https://lore.kernel.org/linux-riscv/20221015114702.3489989-1-guoren@kernel.org/ - Fixup regs_irqs_disabled with SR_PIE - Optimize stackleak_erase -> stackleak_erase_on_task_stack (Thx Mark Rutland) - Add BUG_ON(!irqs_disabled()) in trap handlers - Using regs_irqs_disabled in __do_page_fault - Remove unnecessary irq disable in ret_from_exception and add comment v6: https://lore.kernel.org/linux-riscv/20221002012451.2351127-1-guoren@kernel.org/ - Use THEAD_SIZE_ORDER for thread size adjustment in kconfig (Thx Arnd) - Move call_on_stack to inline style (Thx Peter Zijlstra) - Fixup fp chain broken (Thx Chen Zhongjin) - Remove common entry modification, and fixup page_fault entry (Thx Peter Zijlstra) - Treat some traps as nmi entry (Thx Peter Zijlstra) v5: https://lore.kernel.org/linux-riscv/20220918155246.1203293-1-guoren@kernel.org/ - Add riscv own stackleak patch instead of generic entry modification (by Mark Rutland) - Add EXPERT dependency for THREAD_SIZE (by Arnd) - Add EXPERT dependency for IRQ_STACK (by Sebastian, David Laight) - Corrected __trap_section (by Peter Zijlstra) - Add Tested-by (Yipeng Zou) - Use CONFIG_SOFTIRQ_ON_OWN_STACK replace "#ifndef CONFIG_PREEMPT_RT" - Fixup systrace_enter compile error - Fixup exit_to_user_mode_prepare preempt_disable warning V4: https://lore.kernel.org/linux-riscv/20220908022506.1275799-1-guoren@kernel.org/ - Fixup entry.S with "la" bug (by Conor.Dooley) - Fixup missing noinstr bug (by Peter Zijlstra) V3: https://lore.kernel.org/linux-riscv/20220906035423.634617-1-guoren@kernel.org/ - Fixup CONFIG_COMPAT=n compile error - Add THREAD_SIZE_ORDER config - Optimize elf_kexec.c warning fixup - Add static to irq_stack_ptr definition V2: https://lore.kernel.org/linux-riscv/20220904072637.8619-1-guoren@kernel.org/ - Fixup compile error by include "riscv: ptrace: Remove duplicate operation" - Fixup compile warning Reported-by: kernel test robot <lkp@intel.com> - Add test repo link in cover letter V1: https://lore.kernel.org/linux-riscv/20220903163808.1954131-1-guoren@kernel.org/ Dao Lu (1): riscv: Add support for STACKLEAK gcc plugin Guo Ren (9): riscv: elf_kexec: Fixup compile warning riscv: compat_syscall_table: Fixup compile warning riscv: ptrace: Remove duplicate operation riscv: traps: Add noinstr to prevent instrumentation inserted riscv: convert to generic entry riscv: Support HAVE_IRQ_EXIT_ON_IRQ_STACK riscv: Support HAVE_SOFTIRQ_ON_OWN_STACK riscv: Add config of thread stack size riscv: Typo fixup for addi -> andi in comment Jisheng Zhang (3): riscv: remove extra level wrappers of trace_hardirqs_{on,off} riscv: consolidate ret_from_kernel_thread into ret_from_fork riscv: entry: consolidate general regs saving/restoring Lai Jiangshan (1): compiler_types.h: Add __noinstr_section() for noinstr arch/riscv/Kconfig | 21 ++ arch/riscv/include/asm/asm.h | 63 +++++ arch/riscv/include/asm/csr.h | 1 - arch/riscv/include/asm/entry-common.h | 8 + arch/riscv/include/asm/ptrace.h | 10 +- arch/riscv/include/asm/stacktrace.h | 5 + arch/riscv/include/asm/syscall.h | 6 + arch/riscv/include/asm/thread_info.h | 27 +-- arch/riscv/include/asm/vmap_stack.h | 28 +++ arch/riscv/kernel/Makefile | 3 +- arch/riscv/kernel/elf_kexec.c | 2 +- arch/riscv/kernel/entry.S | 327 +++----------------------- arch/riscv/kernel/irq.c | 110 +++++++++ arch/riscv/kernel/mcount-dyn.S | 56 +---- arch/riscv/kernel/process.c | 5 +- arch/riscv/kernel/ptrace.c | 44 ---- arch/riscv/kernel/signal.c | 21 +- arch/riscv/kernel/sys_riscv.c | 29 +++ arch/riscv/kernel/trace_irq.c | 27 --- arch/riscv/kernel/trace_irq.h | 11 - arch/riscv/kernel/traps.c | 74 ++++-- arch/riscv/mm/fault.c | 16 +- drivers/firmware/efi/libstub/Makefile | 2 +- include/linux/compiler_types.h | 15 +- 24 files changed, 409 insertions(+), 502 deletions(-) create mode 100644 arch/riscv/include/asm/entry-common.h create mode 100644 arch/riscv/include/asm/vmap_stack.h delete mode 100644 arch/riscv/kernel/trace_irq.c delete mode 100644 arch/riscv/kernel/trace_irq.h -- 2.36.1
WARNING: multiple messages have this Message-ID (diff)
From: guoren@kernel.org To: arnd@arndb.de, guoren@kernel.org, palmer@rivosinc.com, tglx@linutronix.de, peterz@infradead.org, luto@kernel.org, conor.dooley@microchip.com, heiko@sntech.de, jszhang@kernel.org, lazyparser@gmail.com, falcon@tinylab.org, chenhuacai@kernel.org, apatel@ventanamicro.com, atishp@atishpatra.org, palmer@dabbelt.com, paul.walmsley@sifive.com, mark.rutland@arm.com, zouyipeng@huawei.com, bigeasy@linutronix.de, David.Laight@aculab.com, chenzhongjin@huawei.com, greentime.hu@sifive.com, andy.chiu@sifive.com, ben@decadent.org.uk Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Guo Ren <guoren@linux.alibaba.com> Subject: [PATCH -next V9 00/14] riscv: Add GENERIC_ENTRY support and related features Date: Tue, 29 Nov 2022 22:40:45 -0500 [thread overview] Message-ID: <20221130034059.826599-1-guoren@kernel.org> (raw) From: Guo Ren <guoren@linux.alibaba.com> The patches convert riscv to use the generic entry infrastructure from kernel/entry/*. Additionally, add independent irq stacks (IRQ_STACKS) for percpu to prevent kernel stack overflows. Add generic_entry based STACKLEAK support. Some optimization for entry.S with new .macro and merge ret_from_kernel_thread into ret_from_fork. We have tested it with rv64, rv32, rv64 + 32rootfs, all are passed. You can directly try it with: [1] https://github.com/guoren83/linux/tree/generic_entry_v9 Any reviews and tests are helpful. v9: - Fixup NR_syscalls check (by Ben Hutchings) - Add Tested-by: Jisheng Zhang v8: https://lore.kernel.org/linux-riscv/20221103075047.1634923-1-guoren@kernel.org/ - Rebase on palmer/for-next branch (20221102) - Add save/restore_from_x5_to_x31 .macro (JishengZhang) - Consolidate ret_from_kernel_thread into ret_from_fork (JishengZhang) - Optimize __noinstr_section comment (JiangshanLai) v7: https://lore.kernel.org/linux-riscv/20221015114702.3489989-1-guoren@kernel.org/ - Fixup regs_irqs_disabled with SR_PIE - Optimize stackleak_erase -> stackleak_erase_on_task_stack (Thx Mark Rutland) - Add BUG_ON(!irqs_disabled()) in trap handlers - Using regs_irqs_disabled in __do_page_fault - Remove unnecessary irq disable in ret_from_exception and add comment v6: https://lore.kernel.org/linux-riscv/20221002012451.2351127-1-guoren@kernel.org/ - Use THEAD_SIZE_ORDER for thread size adjustment in kconfig (Thx Arnd) - Move call_on_stack to inline style (Thx Peter Zijlstra) - Fixup fp chain broken (Thx Chen Zhongjin) - Remove common entry modification, and fixup page_fault entry (Thx Peter Zijlstra) - Treat some traps as nmi entry (Thx Peter Zijlstra) v5: https://lore.kernel.org/linux-riscv/20220918155246.1203293-1-guoren@kernel.org/ - Add riscv own stackleak patch instead of generic entry modification (by Mark Rutland) - Add EXPERT dependency for THREAD_SIZE (by Arnd) - Add EXPERT dependency for IRQ_STACK (by Sebastian, David Laight) - Corrected __trap_section (by Peter Zijlstra) - Add Tested-by (Yipeng Zou) - Use CONFIG_SOFTIRQ_ON_OWN_STACK replace "#ifndef CONFIG_PREEMPT_RT" - Fixup systrace_enter compile error - Fixup exit_to_user_mode_prepare preempt_disable warning V4: https://lore.kernel.org/linux-riscv/20220908022506.1275799-1-guoren@kernel.org/ - Fixup entry.S with "la" bug (by Conor.Dooley) - Fixup missing noinstr bug (by Peter Zijlstra) V3: https://lore.kernel.org/linux-riscv/20220906035423.634617-1-guoren@kernel.org/ - Fixup CONFIG_COMPAT=n compile error - Add THREAD_SIZE_ORDER config - Optimize elf_kexec.c warning fixup - Add static to irq_stack_ptr definition V2: https://lore.kernel.org/linux-riscv/20220904072637.8619-1-guoren@kernel.org/ - Fixup compile error by include "riscv: ptrace: Remove duplicate operation" - Fixup compile warning Reported-by: kernel test robot <lkp@intel.com> - Add test repo link in cover letter V1: https://lore.kernel.org/linux-riscv/20220903163808.1954131-1-guoren@kernel.org/ Dao Lu (1): riscv: Add support for STACKLEAK gcc plugin Guo Ren (9): riscv: elf_kexec: Fixup compile warning riscv: compat_syscall_table: Fixup compile warning riscv: ptrace: Remove duplicate operation riscv: traps: Add noinstr to prevent instrumentation inserted riscv: convert to generic entry riscv: Support HAVE_IRQ_EXIT_ON_IRQ_STACK riscv: Support HAVE_SOFTIRQ_ON_OWN_STACK riscv: Add config of thread stack size riscv: Typo fixup for addi -> andi in comment Jisheng Zhang (3): riscv: remove extra level wrappers of trace_hardirqs_{on,off} riscv: consolidate ret_from_kernel_thread into ret_from_fork riscv: entry: consolidate general regs saving/restoring Lai Jiangshan (1): compiler_types.h: Add __noinstr_section() for noinstr arch/riscv/Kconfig | 21 ++ arch/riscv/include/asm/asm.h | 63 +++++ arch/riscv/include/asm/csr.h | 1 - arch/riscv/include/asm/entry-common.h | 8 + arch/riscv/include/asm/ptrace.h | 10 +- arch/riscv/include/asm/stacktrace.h | 5 + arch/riscv/include/asm/syscall.h | 6 + arch/riscv/include/asm/thread_info.h | 27 +-- arch/riscv/include/asm/vmap_stack.h | 28 +++ arch/riscv/kernel/Makefile | 3 +- arch/riscv/kernel/elf_kexec.c | 2 +- arch/riscv/kernel/entry.S | 327 +++----------------------- arch/riscv/kernel/irq.c | 110 +++++++++ arch/riscv/kernel/mcount-dyn.S | 56 +---- arch/riscv/kernel/process.c | 5 +- arch/riscv/kernel/ptrace.c | 44 ---- arch/riscv/kernel/signal.c | 21 +- arch/riscv/kernel/sys_riscv.c | 29 +++ arch/riscv/kernel/trace_irq.c | 27 --- arch/riscv/kernel/trace_irq.h | 11 - arch/riscv/kernel/traps.c | 74 ++++-- arch/riscv/mm/fault.c | 16 +- drivers/firmware/efi/libstub/Makefile | 2 +- include/linux/compiler_types.h | 15 +- 24 files changed, 409 insertions(+), 502 deletions(-) create mode 100644 arch/riscv/include/asm/entry-common.h create mode 100644 arch/riscv/include/asm/vmap_stack.h delete mode 100644 arch/riscv/kernel/trace_irq.c delete mode 100644 arch/riscv/kernel/trace_irq.h -- 2.36.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv
next reply other threads:[~2022-11-30 3:41 UTC|newest] Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-11-30 3:40 guoren [this message] 2022-11-30 3:40 ` [PATCH -next V9 00/14] riscv: Add GENERIC_ENTRY support and related features guoren 2022-11-30 3:40 ` [PATCH -next V9 01/14] compiler_types.h: Add __noinstr_section() for noinstr guoren 2022-11-30 3:40 ` guoren 2022-11-30 3:40 ` [PATCH -next V9 02/14] riscv: elf_kexec: Fixup compile warning guoren 2022-11-30 3:40 ` guoren 2022-11-30 3:40 ` [PATCH -next V9 03/14] riscv: compat_syscall_table: " guoren 2022-11-30 3:40 ` guoren 2022-11-30 3:40 ` [PATCH -next V9 04/14] riscv: ptrace: Remove duplicate operation guoren 2022-11-30 3:40 ` guoren 2022-11-30 3:40 ` [PATCH -next V9 05/14] riscv: traps: Add noinstr to prevent instrumentation inserted guoren 2022-11-30 3:40 ` guoren 2022-11-30 3:40 ` [PATCH -next V9 06/14] riscv: convert to generic entry guoren 2022-11-30 3:40 ` guoren 2022-11-30 3:40 ` [PATCH -next V9 07/14] riscv: Support HAVE_IRQ_EXIT_ON_IRQ_STACK guoren 2022-11-30 3:40 ` guoren 2022-11-30 3:40 ` [PATCH -next V9 08/14] riscv: Support HAVE_SOFTIRQ_ON_OWN_STACK guoren 2022-11-30 3:40 ` guoren 2022-11-30 3:40 ` [PATCH -next V9 09/14] riscv: Add config of thread stack size guoren 2022-11-30 3:40 ` guoren 2022-11-30 3:40 ` [PATCH -next V9 10/14] riscv: Typo fixup for addi -> andi in comment guoren 2022-11-30 3:40 ` guoren 2022-11-30 3:40 ` [PATCH -next V9 11/14] riscv: Add support for STACKLEAK gcc plugin guoren 2022-11-30 3:40 ` guoren 2022-11-30 3:40 ` [PATCH -next V9 12/14] riscv: remove extra level wrappers of trace_hardirqs_{on,off} guoren 2022-11-30 3:40 ` guoren 2022-11-30 3:40 ` [PATCH -next V9 13/14] riscv: consolidate ret_from_kernel_thread into ret_from_fork guoren 2022-11-30 3:40 ` guoren 2022-11-30 3:40 ` [PATCH -next V9 14/14] riscv: entry: consolidate general regs saving/restoring guoren 2022-11-30 3:40 ` guoren
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