[V5,01/15] seccomp: Provide stub for __secure_computing()

Message ID	20200722220519.404974280@linutronix.de (mailing list archive)
State	New, archived
Headers	show Return-Path: <SRS0=byMP=BB=vger.kernel.org=kvm-owner@kernel.org> Message-Id: <20200722220519.404974280@linutronix.de> Date: Wed, 22 Jul 2020 23:59:55 +0200 From: Thomas Gleixner <tglx@linutronix.de> To: LKML <linux-kernel@vger.kernel.org> Cc: x86@kernel.org, linux-arch@vger.kernel.org, Will Deacon <will@kernel.org>, Arnd Bergmann <arnd@arndb.de>, Mark Rutland <mark.rutland@arm.com>, Kees Cook <keescook@chromium.org>, Keno Fischer <keno@juliacomputing.com>, Paolo Bonzini <pbonzini@redhat.com>, kvm@vger.kernel.org, Gabriel Krisman Bertazi <krisman@collabora.com>, Sean Christopherson <sean.j.christopherson@intel.com> Subject: [patch V5 01/15] seccomp: Provide stub for __secure_computing() References: <20200722215954.464281930@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-transfer-encoding: 8-bit Sender: kvm-owner@vger.kernel.org Precedence: bulk
Series	entry, x86, kvm: Generic entry/exit functionality for host and guest \| expand [V5,00/15] entry, x86, kvm: Generic entry/exit functionality for host and guest [V5,01/15] seccomp: Provide stub for __secure_computing() [V5,02/15] entry: Provide generic syscall entry functionality [V5,03/15] entry: Provide generic syscall exit function [V5,04/15] entry: Provide generic interrupt entry/exit code [V5,05/15] entry: Provide infrastructure for work before transitioning to guest mode [V5,06/15] x86/entry: Consolidate check_user_regs() [V5,07/15] x86/entry: Consolidate 32/64 bit syscall entry [V5,08/15] x86/entry: Move user return notifier out of loop [V5,09/15] x86/ptrace: Provide pt_regs helper for entry/exit [V5,10/15] x86/entry: Use generic syscall entry function [V5,11/15] x86/entry: Use generic syscall exit functionality [V5,12/15] x86/entry: Cleanup idtentry_entry/exit_user [V5,13/15] x86/entry: Use generic interrupt entry/exit code [V5,14/15] x86/entry: Cleanup idtentry_enter/exit [V5,15/15] x86/kvm: Use generic xfer to guest work function

Message ID

20200722220519.404974280@linutronix.de (mailing list archive)

State

New, archived

Headers

Message-Id: <20200722220519.404974280@linutronix.de>
Date: Wed, 22 Jul 2020 23:59:55 +0200
From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: x86@kernel.org, linux-arch@vger.kernel.org,
        Will Deacon <will@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
        Mark Rutland <mark.rutland@arm.com>,
        Kees Cook <keescook@chromium.org>,
        Keno Fischer <keno@juliacomputing.com>,
        Paolo Bonzini <pbonzini@redhat.com>, kvm@vger.kernel.org,
        Gabriel Krisman Bertazi <krisman@collabora.com>,
        Sean Christopherson <sean.j.christopherson@intel.com>
Subject: [patch V5 01/15] seccomp: Provide stub for __secure_computing()
References: <20200722215954.464281930@linutronix.de>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-transfer-encoding: 8-bit
Sender: kvm-owner@vger.kernel.org
Precedence: bulk

Series

entry, x86, kvm: Generic entry/exit functionality for host and guest | expand

Commit Message

Thomas Gleixner July 22, 2020, 9:59 p.m. UTC

From: Thomas Gleixner <tglx@linutronix.de>

To avoid #ifdeffery in the upcoming generic syscall entry work code provide
a stub for __secure_computing() as this is preferred over
secure_computing() because the TIF flag is already evaluated.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Kees Cook <keescook@chromium.org>

---
V4: New patch
---
 include/linux/seccomp.h |    1 +
 1 file changed, 1 insertion(+)

--- a/include/linux/seccomp.h
+++ b/include/linux/seccomp.h
@@ -61,6 +61,7 @@  struct seccomp_filter { };
 
 #ifdef CONFIG_HAVE_ARCH_SECCOMP_FILTER
 static inline int secure_computing(void) { return 0; }
+static inline int __secure_computing(void) { return 0; }
 #else
 static inline void secure_computing_strict(int this_syscall) { return; }
 #endif

[V5,01/15] seccomp: Provide stub for __secure_computing()

Commit Message

Patch