[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [RFC PATCH 1/3] arch, arm32: add definition of paddr_bits
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 <avanzini.arianna@xxxxxxxxx> Cc: Dario Faggioli <dario.faggioli@xxxxxxxxxx> Cc: Paolo Valente <paolo.valente@xxxxxxxxxx> Cc: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx> Cc: Julien Grall <julien.grall@xxxxxxxxxx> Cc: Eric Trudeau <etrudeau@xxxxxxxxxxxx> Cc: Viktor Kleinik <viktor.kleinik@xxxxxxxxxxxxxxx> --- 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 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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