Re: [Xen-devel] [Minios-devel] [PATCH v3 00/19] mini-os: support of auto-ballooning

[Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>]

Wei Liu, on Fri 12 Aug 2016 13:48:09 +0100, wrote:
> ---8<---
> From d72510368cdc3c73af3c8918a404a8137f40bd9c Mon Sep 17 00:00:00 2001
> From: Wei Liu <wei.liu2@xxxxxxxxxx>
> Date: Fri, 12 Aug 2016 11:32:57 +0100
> Subject: [PATCH] x86/arch_mm.h: move p2m_chk_pfn to x86/mm.c
> 
> Making that function inlined won't buy us much and is causing error in
> vtpm manager stubdom build.
> 
> Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>

Acked-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>

> ---
>  arch/x86/mm.c         |  9 +++++++++
>  include/x86/arch_mm.h | 11 +++--------
>  2 files changed, 12 insertions(+), 8 deletions(-)
> 
> diff --git a/arch/x86/mm.c b/arch/x86/mm.c
> index 8fa3b4c..88a928d 100644
> --- a/arch/x86/mm.c
> +++ b/arch/x86/mm.c
> @@ -608,6 +608,15 @@ static void clear_bootstrap(void)
>          printk("Unable to unmap NULL page. rc=%d\n", rc);
>  }
>  
> +void p2m_chk_pfn(unsigned long pfn)
> +{
> +    if ( (pfn >> L3_P2M_SHIFT) > 0 )
> +    {
> +        printk("Error: Too many pfns.\n");
> +        do_exit();
> +    }
> +}
> +
>  void arch_init_p2m(unsigned long max_pfn)
>  {
>      unsigned long *l2_list = NULL, *l3_list;
> diff --git a/include/x86/arch_mm.h b/include/x86/arch_mm.h
> index e5d9c57..690a919 100644
> --- a/include/x86/arch_mm.h
> +++ b/include/x86/arch_mm.h
> @@ -190,14 +190,9 @@ typedef unsigned long pgentry_t;
>  #define L2_P2M_IDX(pfn) (((pfn) >> L1_P2M_SHIFT) & P2M_MASK)
>  #define L3_P2M_IDX(pfn) (((pfn) >> L2_P2M_SHIFT) & P2M_MASK)
>  #define INVALID_P2M_ENTRY (~0UL)
> -static inline void p2m_chk_pfn(unsigned long pfn)
> -{
> -    if ( (pfn >> L3_P2M_SHIFT) > 0 )
> -    {
> -        printk("Error: Too many pfns.\n");
> -        do_exit();
> -    }
> -}
> +
> +void p2m_chk_pfn(unsigned long pfn);
> +
>  static inline unsigned long p2m_pages(unsigned long pages)
>  {
>      return (pages + P2M_ENTRIES - 1) >> L1_P2M_SHIFT;
> -- 
> 2.1.4
> 

-- 
Samuel
"How should I know if it works?  That's what beta testers are for.  I only
coded it."
(Attributed to Linus Torvalds, somewhere in a posting)

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