From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Stabellini Subject: [PATCH v3 2/4] xen/arm: implement get/put_page_type Date: Thu, 26 Jul 2012 19:54:50 +0100 Message-ID: <1343328892-10195-2-git-send-email-stefano.stabellini@eu.citrix.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: 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.xensource.com Cc: Tim.Deegan@xen.org, Ian.Campbell@citrix.com, Stefano Stabellini List-Id: xen-devel@lists.xenproject.org Add a basic get_page_type and put_page_type implementation: we don't care about typecounts so just return success. Also remove PGT_shared_page, that is unused. Changes in v3: - replace get_page_type and put_page_type with an empty implementation. Signed-off-by: Stefano Stabellini --- xen/arch/arm/dummy.S | 4 ---- xen/arch/arm/mm.c | 13 +++++++++++++ xen/include/asm-arm/mm.h | 1 - 3 files changed, 13 insertions(+), 5 deletions(-) diff --git a/xen/arch/arm/dummy.S b/xen/arch/arm/dummy.S index baced25..2b96d22 100644 --- a/xen/arch/arm/dummy.S +++ b/xen/arch/arm/dummy.S @@ -22,10 +22,6 @@ DUMMY(arch_get_info_guest); DUMMY(arch_vcpu_reset); NOP(update_vcpu_system_time); -/* Page Reference & Type Maintenance */ -DUMMY(get_page_type); -DUMMY(put_page_type); - /* Grant Tables */ DUMMY(steal_page); diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c index e963af9..96a4ca2 100644 --- a/xen/arch/arm/mm.c +++ b/xen/arch/arm/mm.c @@ -594,6 +594,19 @@ int get_page(struct page_info *page, struct domain *domain) return 0; } +/* Common code requires get_page_type and put_page_type. + * We don't care about typecounts so we just do the minimum to make it + * happy. */ +int get_page_type(struct page_info *page, unsigned long type) +{ + return 1; +} + +void put_page_type(struct page_info *page) +{ + return; +} + void gnttab_clear_flag(unsigned long nr, uint16_t *addr) { /* diff --git a/xen/include/asm-arm/mm.h b/xen/include/asm-arm/mm.h index 53801b0..b37bd35 100644 --- a/xen/include/asm-arm/mm.h +++ b/xen/include/asm-arm/mm.h @@ -71,7 +71,6 @@ struct page_info #define PGT_none PG_mask(0, 4) /* no special uses of this page */ #define PGT_writable_page PG_mask(7, 4) /* has writable mappings? */ -#define PGT_shared_page PG_mask(8, 4) /* CoW sharable page */ #define PGT_type_mask PG_mask(15, 4) /* Bits 28-31 or 60-63. */ /* Owning guest has pinned this page to its current type? */ -- 1.7.2.5