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Re: [Xen-devel] [PATCH v3 2/3] x86/mm: Introduce altp2m_set_entry_by_page_order
- To: Alexandru Stefan ISAILA <aisaila@xxxxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: George Dunlap <george.dunlap@xxxxxxxxxx>
- Date: Wed, 10 Apr 2019 15:18:15 +0100
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- Cc: "tamas@xxxxxxxxxxxxx" <tamas@xxxxxxxxxxxxx>, "wei.liu2@xxxxxxxxxx" <wei.liu2@xxxxxxxxxx>, "rcojocaru@xxxxxxxxxxxxxxx" <rcojocaru@xxxxxxxxxxxxxxx>, "george.dunlap@xxxxxxxxxxxxx" <george.dunlap@xxxxxxxxxxxxx>, "andrew.cooper3@xxxxxxxxxx" <andrew.cooper3@xxxxxxxxxx>, "jbeulich@xxxxxxxx" <jbeulich@xxxxxxxx>, "roger.pau@xxxxxxxxxx" <roger.pau@xxxxxxxxxx>
- Delivery-date: Wed, 10 Apr 2019 14:18:43 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Openpgp: preference=signencrypt
On 4/9/19 1:03 PM, Alexandru Stefan ISAILA wrote:
> This patch moves common code from p2m_set_altp2m_mem_access() and
> p2m_change_altp2m_gfn() into one function
>
> Signed-off-by: Alexandru Isaila <aisaila@xxxxxxxxxxxxxxx>
> ---
> xen/arch/x86/mm/mem_access.c | 2 +-
> xen/include/asm-x86/p2m.h | 11 +++++++++++
> 2 files changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/xen/arch/x86/mm/mem_access.c b/xen/arch/x86/mm/mem_access.c
> index bf67ddb15a..6a22512555 100644
> --- a/xen/arch/x86/mm/mem_access.c
> +++ b/xen/arch/x86/mm/mem_access.c
> @@ -279,7 +279,7 @@ int p2m_set_altp2m_mem_access(struct domain *d, struct
> p2m_domain *hp2m,
> gfn_t gfn2 = _gfn(gfn_l & mask);
> mfn_t mfn2 = _mfn(mfn_x(mfn) & mask);
>
> - /* Note: currently it is not safe to remap to a shared entry */
> + /* Note: currently it is not safe to remap to a shared entry */
> if ( t != p2m_ram_rw )
> return -ESRCH;
>
> diff --git a/xen/include/asm-x86/p2m.h b/xen/include/asm-x86/p2m.h
> index 6de1546d76..90a6c135a7 100644
> --- a/xen/include/asm-x86/p2m.h
> +++ b/xen/include/asm-x86/p2m.h
> @@ -467,6 +467,17 @@ static inline mfn_t altp2m_get_gfn_type_access(
> return mfn;
> }
>
> +static inline int altp2m_set_entry_by_page_order(
> + struct p2m_domain *ap2m, unsigned long gfn, mfn_t mfn,
> + unsigned int page_order, p2m_type_t t, p2m_access_t a)
This function doesn't seem to be called anywhere in this series.
-George
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