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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
Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-riscv@lists.infradead.org,
	Guo Ren <guoren@linux.alibaba.com>
Subject: [PATCH V5 00/11] riscv: Add GENERIC_ENTRY support and related features
Date: Sun, 18 Sep 2022 11:52:35 -0400	[thread overview]
Message-ID: <20220918155246.1203293-1-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.

[1] https://github.com/guoren83/linux/tree/generic_entry_v5

v5:
 - 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 Ziji)
 - 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 Ziji)

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
  entry: Prevent DEBUG_PREEMPT warning
  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

Lai Jiangshan (1):
  compiler_types.h: Add __noinstr_section() for noinstr

 arch/riscv/Kconfig                    |  29 +++
 arch/riscv/include/asm/csr.h          |   1 -
 arch/riscv/include/asm/entry-common.h |   8 +
 arch/riscv/include/asm/irq.h          |   3 +
 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            |   1 +
 arch/riscv/kernel/elf_kexec.c         |   2 +-
 arch/riscv/kernel/entry.S             | 257 ++++++--------------------
 arch/riscv/kernel/irq.c               |  75 ++++++++
 arch/riscv/kernel/ptrace.c            |  44 -----
 arch/riscv/kernel/signal.c            |  21 +--
 arch/riscv/kernel/sys_riscv.c         |  27 +++
 arch/riscv/kernel/traps.c             |  15 +-
 arch/riscv/mm/fault.c                 |  12 +-
 drivers/firmware/efi/libstub/Makefile |   2 +-
 include/linux/compiler_types.h        |   8 +-
 kernel/entry/common.c                 |   2 +
 21 files changed, 282 insertions(+), 301 deletions(-)
 create mode 100644 arch/riscv/include/asm/entry-common.h
 create mode 100644 arch/riscv/include/asm/vmap_stack.h

-- 
2.36.1


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             reply	other threads:[~2022-09-18 15:53 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-18 15:52 guoren [this message]
2022-09-18 15:52 ` [PATCH V5 01/11] riscv: elf_kexec: Fixup compile warning guoren
2022-09-18 15:52 ` [PATCH V5 02/11] riscv: compat_syscall_table: " guoren
2022-09-18 15:52 ` [PATCH V5 03/11] riscv: ptrace: Remove duplicate operation guoren
2022-09-18 15:52 ` [PATCH V5 04/11] compiler_types.h: Add __noinstr_section() for noinstr guoren
2022-09-18 15:52 ` [PATCH V5 05/11] riscv: traps: Add noinstr to prevent instrumentation inserted guoren
2022-09-18 15:52 ` [PATCH V5 06/11] entry: Prevent DEBUG_PREEMPT warning guoren
2022-09-19 11:58   ` Peter Zijlstra
2022-09-20  1:45     ` Guo Ren
2022-09-30 12:27       ` Guo Ren
2022-09-18 15:52 ` [PATCH V5 07/11] riscv: convert to generic entry guoren
2022-09-19 13:34   ` Peter Zijlstra
2022-09-20  6:36     ` Guo Ren
2022-09-20  7:22       ` Peter Zijlstra
2022-09-30 11:28         ` Guo Ren
2022-09-18 15:52 ` [PATCH V5 08/11] riscv: Support HAVE_IRQ_EXIT_ON_IRQ_STACK guoren
2022-09-19 13:45   ` Peter Zijlstra
2022-09-20  6:08     ` Guo Ren
2022-09-20  7:27       ` Peter Zijlstra
2022-09-20  7:34         ` Peter Zijlstra
2022-09-21  6:16           ` Guo Ren
2022-09-21  8:34   ` Chen Zhongjin
2022-09-21  9:53     ` Guo Ren
2022-09-21 11:56       ` Chen Zhongjin
2022-09-22  1:26         ` Guo Ren
2022-09-18 15:52 ` [PATCH V5 09/11] riscv: Support HAVE_SOFTIRQ_ON_OWN_STACK guoren
2022-09-20  0:11   ` Guo Ren
2022-09-18 15:52 ` [PATCH V5 10/11] riscv: Add config of thread stack size guoren
2022-09-18 15:52 ` [PATCH V5 11/11] riscv: Add support for STACKLEAK gcc plugin guoren

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