[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH for-4.12 v2 09/17] xen/arm: Rework p2m_cache_flush to take a range [begin, end)
The function will be easier to re-use in a follow-up patch if you have only the begin and end. At the same time, rename the function to reflect the change in the prototype. Signed-off-by: Julien Grall <julien.grall@xxxxxxx> Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx> --- Changes in v2: - Add Stefano's reviewed-by --- xen/arch/arm/domctl.c | 2 +- xen/arch/arm/p2m.c | 3 +-- xen/include/asm-arm/p2m.h | 7 +++++-- 3 files changed, 7 insertions(+), 5 deletions(-) diff --git a/xen/arch/arm/domctl.c b/xen/arch/arm/domctl.c index 4587c75826..c10f568aad 100644 --- a/xen/arch/arm/domctl.c +++ b/xen/arch/arm/domctl.c @@ -61,7 +61,7 @@ long arch_do_domctl(struct xen_domctl *domctl, struct domain *d, if ( e < s ) return -EINVAL; - return p2m_cache_flush(d, _gfn(s), domctl->u.cacheflush.nr_pfns); + return p2m_cache_flush_range(d, _gfn(s), _gfn(e)); } case XEN_DOMCTL_bind_pt_irq: { diff --git a/xen/arch/arm/p2m.c b/xen/arch/arm/p2m.c index 2706db3e67..836157292c 100644 --- a/xen/arch/arm/p2m.c +++ b/xen/arch/arm/p2m.c @@ -1514,10 +1514,9 @@ int relinquish_p2m_mapping(struct domain *d) return rc; } -int p2m_cache_flush(struct domain *d, gfn_t start, unsigned long nr) +int p2m_cache_flush_range(struct domain *d, gfn_t start, gfn_t end) { struct p2m_domain *p2m = p2m_get_hostp2m(d); - gfn_t end = gfn_add(start, nr); gfn_t next_gfn; p2m_type_t t; unsigned int order; diff --git a/xen/include/asm-arm/p2m.h b/xen/include/asm-arm/p2m.h index 13f7a27c38..5858f97e9c 100644 --- a/xen/include/asm-arm/p2m.h +++ b/xen/include/asm-arm/p2m.h @@ -228,8 +228,11 @@ int p2m_set_entry(struct p2m_domain *p2m, bool p2m_resolve_translation_fault(struct domain *d, gfn_t gfn); -/* Clean & invalidate caches corresponding to a region of guest address space */ -int p2m_cache_flush(struct domain *d, gfn_t start, unsigned long nr); +/* + * Clean & invalidate caches corresponding to a region [start,end) of guest + * address space. + */ +int p2m_cache_flush_range(struct domain *d, gfn_t start, gfn_t end); /* * Map a region in the guest p2m with a specific p2m type. -- 2.11.0 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
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