From: Sven Schnelle <svens@stackframe.org>
To: deller@gmx.de
Cc: linux-parisc@vger.kernel.org, Sven Schnelle <svens@stackframe.org>
Subject: [PATCH 0/3] Add KGDB support to parisc
Date: Tue, 2 Apr 2019 22:48:15 +0200 [thread overview]
Message-ID: <20190402204818.5929-1-svens@stackframe.org> (raw)
Hi,
these series add fixed mappings, a function to patch kernel text
with RO kernel text and kgdb support to parisc.
Fixed mappings are located at the end of the VMALLOC address range. patch_text()
is introduced based on the ARM implementation, which utilizies fixed mappings.
patch_text() only supports late patching, but we might extend it later with
early patching functionality. And last but not least the last patch adds KGDB
functionality. KGDB was tested on C3750 with a 32 and 64 bit kernel, on C8000
with 64 bit.
Sven Schnelle (3):
parisc: add set_fixmap()/clear_fixmap()
parisc: add parisc code patching
parisc: add KGDB support
arch/parisc/Kconfig | 1 +
arch/parisc/include/asm/fixmap.h | 19 ++-
arch/parisc/include/asm/kgdb.h | 68 ++++++++++
arch/parisc/include/asm/patch.h | 7 ++
arch/parisc/kernel/Makefile | 4 +-
arch/parisc/kernel/kgdb.c | 210 +++++++++++++++++++++++++++++++
arch/parisc/kernel/patch.c | 78 ++++++++++++
arch/parisc/kernel/traps.c | 15 +++
arch/parisc/mm/Makefile | 2 +-
arch/parisc/mm/fixmap.c | 43 +++++++
arch/parisc/mm/init.c | 14 ++-
11 files changed, 453 insertions(+), 8 deletions(-)
create mode 100644 arch/parisc/include/asm/kgdb.h
create mode 100644 arch/parisc/include/asm/patch.h
create mode 100644 arch/parisc/kernel/kgdb.c
create mode 100644 arch/parisc/kernel/patch.c
create mode 100644 arch/parisc/mm/fixmap.c
--
2.20.1
next reply other threads:[~2019-04-02 20:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-02 20:48 Sven Schnelle [this message]
2019-04-02 20:48 ` [PATCH 1/3] parisc: add set_fixmap()/clear_fixmap() Sven Schnelle
2019-04-02 20:48 ` [PATCH 2/3] parisc: add parisc code patching Sven Schnelle
2019-04-02 20:48 ` [PATCH 3/3] parisc: add KGDB support Sven Schnelle
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