Re: [PATCH 2/3] arm/xen: add support for vm_assist hypercall

[Juergen Gross]

On 22/06/16 09:03, Juergen Gross wrote:
> Add support for the Xen HYPERVISOR_vm_assist hypercall.
> 
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>

Stefano, could you please comment?


Juergen

> ---
>  arch/arm/include/asm/xen/hypercall.h | 1 +
>  arch/arm/xen/enlighten.c             | 1 +
>  arch/arm/xen/hypercall.S             | 1 +
>  arch/arm64/xen/hypercall.S           | 1 +
>  4 files changed, 4 insertions(+)
> 
> diff --git a/arch/arm/include/asm/xen/hypercall.h b/arch/arm/include/asm/xen/hypercall.h
> index b6b962d..9d874db 100644
> --- a/arch/arm/include/asm/xen/hypercall.h
> +++ b/arch/arm/include/asm/xen/hypercall.h
> @@ -52,6 +52,7 @@ int HYPERVISOR_memory_op(unsigned int cmd, void *arg);
>  int HYPERVISOR_physdev_op(int cmd, void *arg);
>  int HYPERVISOR_vcpu_op(int cmd, int vcpuid, void *extra_args);
>  int HYPERVISOR_tmem_op(void *arg);
> +int HYPERVISOR_vm_assist(unsigned int cmd, unsigned int type);
>  int HYPERVISOR_platform_op_raw(void *arg);
>  static inline int HYPERVISOR_platform_op(struct xen_platform_op *op)
>  {
> diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
> index 71db30c..0f3aa12 100644
> --- a/arch/arm/xen/enlighten.c
> +++ b/arch/arm/xen/enlighten.c
> @@ -389,4 +389,5 @@ EXPORT_SYMBOL_GPL(HYPERVISOR_vcpu_op);
>  EXPORT_SYMBOL_GPL(HYPERVISOR_tmem_op);
>  EXPORT_SYMBOL_GPL(HYPERVISOR_platform_op);
>  EXPORT_SYMBOL_GPL(HYPERVISOR_multicall);
> +EXPORT_SYMBOL_GPL(HYPERVISOR_vm_assist);
>  EXPORT_SYMBOL_GPL(privcmd_call);
> diff --git a/arch/arm/xen/hypercall.S b/arch/arm/xen/hypercall.S
> index 9a36f4f..a648dfc 100644
> --- a/arch/arm/xen/hypercall.S
> +++ b/arch/arm/xen/hypercall.S
> @@ -91,6 +91,7 @@ HYPERCALL3(vcpu_op);
>  HYPERCALL1(tmem_op);
>  HYPERCALL1(platform_op_raw);
>  HYPERCALL2(multicall);
> +HYPERCALL2(vm_assist);
>  
>  ENTRY(privcmd_call)
>  	stmdb sp!, {r4}
> diff --git a/arch/arm64/xen/hypercall.S b/arch/arm64/xen/hypercall.S
> index 70df80e..329c802 100644
> --- a/arch/arm64/xen/hypercall.S
> +++ b/arch/arm64/xen/hypercall.S
> @@ -82,6 +82,7 @@ HYPERCALL3(vcpu_op);
>  HYPERCALL1(tmem_op);
>  HYPERCALL1(platform_op_raw);
>  HYPERCALL2(multicall);
> +HYPERCALL2(vm_assist);
>  
>  ENTRY(privcmd_call)
>  	mov x16, x0
>