[v2,0/3] Allow platform to handle load/store faults

Message ID	1707130200-559404-1-git-send-email-ganboing@gmail.com
Headers	show Return-Path: <opensbi-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org> From: Bo Gan <ganboing@gmail.com> To: opensbi@lists.infradead.org Cc: wxjstz@126.com, anup@brainfault.org Subject: [PATCH v2 0/3] Allow platform to handle load/store faults Date: Mon, 5 Feb 2024 02:49:57 -0800 Message-Id: <1707130200-559404-1-git-send-email-ganboing@gmail.com> preview: Sometimes a platform wants to trap-n-emulate special devices or filter access to physical devices. This patch makes sbi_trap_handler to call platform_ops.emulate_load/store and ask platform to fixup t [...] Content analysis details: (-0.2 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:1032 listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider [ganboing(at)gmail.com] -0.0 T_SCC_BODY_TEXT_LINE No description available. Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "opensbi" <opensbi-bounces@lists.infradead.org> Errors-To: opensbi-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org
Series	Allow platform to handle load/store faults \| expand [v2,0/3] Allow platform to handle load/store faults [v2,1/3] lib: sbi: rename sbi_misaligned_ldst.c to sbi_trap_ldst.c [v2,2/3] include: sbi: rename sbi_misaligned_ldst.h to sbi_trap_ldst.h [v2,3/3] lib: sbi: Allow platform to fixup load/store faults

Message ID

1707130200-559404-1-git-send-email-ganboing@gmail.com

Headers

From: Bo Gan <ganboing@gmail.com>
To: opensbi@lists.infradead.org
Cc: wxjstz@126.com,
	anup@brainfault.org
Subject: [PATCH v2 0/3] Allow platform to handle load/store faults
Date: Mon,  5 Feb 2024 02:49:57 -0800
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Series

Allow platform to handle load/store faults | expand

Message

Bo Gan Feb. 5, 2024, 10:49 a.m. UTC

Sometimes a platform wants to trap-n-emulate special devices or filter
access to physical devices. This patch makes sbi_trap_handler to call
platform_ops.emulate_load/store and ask platform to fixup the fault.

v2 changes:
-  Added const qualifier to *orig_trap on load/store fault handlers.
   That addressed Xiang W's comment.
-  Applied clang-format to changed lines.

Bo Gan (3):
  lib: sbi: rename sbi_misaligned_ldst.c to sbi_trap_ldst.c
  include: sbi: rename sbi_misaligned_ldst.h to sbi_trap_ldst.h
  lib: sbi: Allow platform to fixup load/store faults

 include/sbi/sbi_misaligned_ldst.h                  |  23 ---
 include/sbi/sbi_platform.h                         |  13 ++
 include/sbi/sbi_trap.h                             |   2 +-
 include/sbi/sbi_trap_ldst.h                        |  43 +++++
 lib/sbi/objects.mk                                 |   2 +-
 lib/sbi/sbi_trap.c                                 |  38 ++--
 lib/sbi/{sbi_misaligned_ldst.c => sbi_trap_ldst.c} | 210 ++++++++++++++-------
 7 files changed, 218 insertions(+), 113 deletions(-)
 delete mode 100644 include/sbi/sbi_misaligned_ldst.h
 create mode 100644 include/sbi/sbi_trap_ldst.h
 rename lib/sbi/{sbi_misaligned_ldst.c => sbi_trap_ldst.c} (61%)