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From: guoren@kernel.org
To: paul.walmsley@sifive.com, palmer@dabbelt.com,
	alexghiti@rivosinc.com, charlie@rivosinc.com, guoren@kernel.org,
	panqinglin2020@iscas.ac.cn, bjorn@rivosinc.com,
	conor.dooley@microchip.com, leobras@redhat.com,
	cleger@rivosinc.com, willy@infradead.org
Cc: linux-kernel@vger.kernel.org, Guo Ren <guoren@linux.alibaba.com>
Subject: [PATCH V4 0/4] riscv: mm: Fixup & Optimize COMPAT mode
Date: Sun,  7 Jan 2024 01:30:21 -0500	[thread overview]
Message-ID: <20240107063025.1628475-1-guoren@kernel.org> (raw)

From: Guo Ren <guoren@linux.alibaba.com>

When the task is in COMPAT mode, the TASK_SIZE should be 2GB, so
STACK_TOP_MAX and arch_get_mmap_end must be limited to 2 GB. This series
fixes the problem made by commit: add2cc6b6515 ("RISC-V: mm: Restrict
address space for sv39,sv48,sv57") and optimizes the related coding
convention of TASK_SIZE.

Changelog:
v4:
 - Add "Reviewed-by" tags

v3:
https://lore.kernel.org/linux-riscv/20231222115703.2404036-1-guoren@kernel.org/
 - Remove wrong modification of arch_get_mmap_end
 - Remove is_compat_task optimization
 - Update comment log

v2:
https://lore.kernel.org/linux-riscv/20231221154702.2267684-1-guoren@kernel.org/
 - Separate rename from fixup
 - Add STACK_TOP_MAX fixup for compat
 - Add Cleanup & rename patches

v1:
https://lore.kernel.org/linux-riscv/20231219111701.1886903-1-guoren@kernel.org/

Guo Ren (4):
  riscv: mm: Fixup compat mode boot failure
  riscv: mm: Fixup compat arch_get_mmap_end
  riscv: mm: Remove unused TASK_SIZE_MIN
  riscv: mm: Optimize TASK_SIZE definition

 arch/riscv/include/asm/pgtable.h   | 7 +++----
 arch/riscv/include/asm/processor.h | 2 +-
 2 files changed, 4 insertions(+), 5 deletions(-)

-- 
2.40.1


             reply	other threads:[~2024-01-07  6:30 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-07  6:30 guoren [this message]
2024-01-07  6:30 ` [PATCH V4 1/4] riscv: mm: Fixup compat mode boot failure guoren
2024-01-07  6:30 ` [PATCH V4 2/4] riscv: mm: Fixup compat arch_get_mmap_end guoren
2024-01-07  6:30 ` [PATCH V4 3/4] riscv: mm: Remove unused TASK_SIZE_MIN guoren
2024-01-07  6:30 ` [PATCH V4 4/4] riscv: mm: Optimize TASK_SIZE definition guoren

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