linux-kernel - [PATCH v2 0/7] x86/entry: Break up common.c

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Message-ID: <20250314151220.862768-1-brgerst@gmail.com>
Date: Fri, 14 Mar 2025 11:12:13 -0400
From: Brian Gerst <brgerst@...il.com>
To: linux-kernel@...r.kernel.org,
	x86@...nel.org
Cc: Ingo Molnar <mingo@...nel.org>,
	"H . Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Borislav Petkov <bp@...en8.de>,
	Andy Lutomirski <luto@...nel.org>,
	Juergen Gross <jgross@...e.com>,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	Brian Gerst <brgerst@...il.com>
Subject: [PATCH v2 0/7] x86/entry: Break up common.c

The syscall dispatch code originally was put into entry/common.c so that
common code for entry from and exit to userspace could be inlined.  That
entry code has since been moved to the core kernel.  There is no longer
a need to keep this code together, so move it to more appropriate
places.

No functional changes.

Changes in v2:
- Move Xen inlines to enlighten_pv.c (Juergen Gross)
- Don't copy comments on the code's origins.  Git history has that
  information already (Sohil Mehta)
- Added cleanup patches (Sohil Mehta)

Brian Gerst (7):
  x86/xen: Move Xen upcall handler
  x86/syscall/32: Move 32-bit syscall dispatch code
  x86/syscall/64: Move 64-bit syscall dispatch code
  x86/syscall/x32: Move x32 syscall table
  x86/syscall: Move sys_ni_syscall()
  x86/syscall: Remove stray semicolons
  x86/syscall/32: Add comment to conditional

 arch/x86/entry/Makefile      |   8 +-
 arch/x86/entry/common.c      | 524 -----------------------------------
 arch/x86/entry/syscall_32.c  | 332 +++++++++++++++++++++-
 arch/x86/entry/syscall_64.c  | 111 +++++++-
 arch/x86/entry/syscall_x32.c |  25 --
 arch/x86/kernel/process.c    |   5 +
 arch/x86/xen/enlighten_pv.c  |  69 +++++
 7 files changed, 515 insertions(+), 559 deletions(-)
 delete mode 100644 arch/x86/entry/common.c
 delete mode 100644 arch/x86/entry/syscall_x32.c


base-commit: d08c0d55110b7cbac186e5fa94b0c6d5f4d7905e
-- 
2.48.1