linux/arch/arm/xen
Stefano Stabellini da095a9960 xen/arm: introduce GNTTABOP_cache_flush
Introduce support for new hypercall GNTTABOP_cache_flush.
Use it to perform cache flashing on pages used for dma when necessary.

If GNTTABOP_cache_flush is supported by the hypervisor, we don't need to
bounce dma map operations that involve foreign grants and non-coherent
devices.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
2014-12-04 12:41:54 +00:00
..
Makefile xen/arm/arm64: merge xen/mm32.c into xen/mm.c 2014-12-04 12:41:53 +00:00
enlighten.c xen/arm: remove handling of XENFEAT_grant_map_identity 2014-12-04 12:41:45 +00:00
grant-table.c arm/xen: remove duplicate arch_gnttab_init() function 2014-08-11 11:59:14 +01:00
hypercall.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
mm.c xen/arm: introduce GNTTABOP_cache_flush 2014-12-04 12:41:54 +00:00
p2m.c xen/arm: remove mach_to_phys rbtree 2014-09-11 18:11:53 +00:00