From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arianna Avanzini Subject: [RFC PATCH 1/3] arch, arm32: add definition of paddr_bits Date: Sun, 2 Mar 2014 01:49:23 +0100 Message-ID: <1393721365-22458-2-git-send-email-avanzini.arianna@gmail.com> References: <1393721365-22458-1-git-send-email-avanzini.arianna@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1393721365-22458-1-git-send-email-avanzini.arianna@gmail.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xen.org Cc: paolo.valente@unimore.it, stefano.stabellini@eu.citrix.com, dario.faggioli@citrix.com, julien.grall@citrix.com, etrudeau@broadcom.com, avanzini.arianna@gmail.com, viktor.kleinik@globallogic.com List-Id: xen-devel@lists.xenproject.org Currently, the paddr_bits variable, which keeps the machine word size, is not defined for the arm32 architecture. This commits adds its definition for arm32 in a new header in the architecture-specific directory. This change is instrumental to the implementation of the XEN_DOMCTL_memory_mapping hypercall, added in the following commit. Signed-off-by: Arianna Avanzini Cc: Dario Faggioli Cc: Paolo Valente Cc: Stefano Stabellini Cc: Julien Grall Cc: Eric Trudeau Cc: Viktor Kleinik --- xen/arch/arm/arm32/cpu.h | 7 +++++++ xen/include/asm-arm/processor.h | 2 ++ 2 files changed, 9 insertions(+) create mode 100644 xen/arch/arm/arm32/cpu.h diff --git a/xen/arch/arm/arm32/cpu.h b/xen/arch/arm/arm32/cpu.h new file mode 100644 index 0000000..1091051 --- /dev/null +++ b/xen/arch/arm/arm32/cpu.h @@ -0,0 +1,7 @@ +#ifndef __ARM_ARM32_CPU_H +#define __ARM_ARM32_CPU_H + +/* ARM-v7 features LPAE (machine word size is 40 bit) */ +unsigned int paddr_bits = 40; + +#endif /* __ARM_ARM32_CPU_H */ diff --git a/xen/include/asm-arm/processor.h b/xen/include/asm-arm/processor.h index 06e638f..65ec3c7 100644 --- a/xen/include/asm-arm/processor.h +++ b/xen/include/asm-arm/processor.h @@ -226,6 +226,8 @@ struct cpuinfo_arm { * capabilities of CPUs */ +extern unsigned int paddr_bits; + extern struct cpuinfo_arm boot_cpu_data; extern void identify_cpu(struct cpuinfo_arm *); -- 1.8.5.3