From 1f871c5e6b0f30644a60a81a6a7aadb3afb030ac Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Fri, 15 Jun 2018 14:57:16 +0100 Subject: exec.c: Handle IOMMUs in address_space_translate_for_iotlb() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Currently we don't support board configurations that put an IOMMU in the path of the CPU's memory transactions, and instead just assert() if the memory region fonud in address_space_translate_for_iotlb() is an IOMMUMemoryRegion. Remove this limitation by having the function handle IOMMUs. This is mostly straightforward, but we must make sure we have a notifier registered for every IOMMU that a transaction has passed through, so that we can flush the TLB appropriately when any of the IOMMUs change their mappings. Signed-off-by: Peter Maydell Reviewed-by: Alex Bennée Message-id: 20180604152941.20374-5-peter.maydell@linaro.org --- include/exec/exec-all.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/exec') diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index aed55aaaa7..8bbea787a9 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -478,7 +478,8 @@ void tb_flush_jmp_cache(CPUState *cpu, target_ulong addr); MemoryRegionSection * address_space_translate_for_iotlb(CPUState *cpu, int asidx, hwaddr addr, - hwaddr *xlat, hwaddr *plen); + hwaddr *xlat, hwaddr *plen, + MemTxAttrs attrs, int *prot); hwaddr memory_region_section_get_iotlb(CPUState *cpu, MemoryRegionSection *section, target_ulong vaddr, -- cgit v1.2.3