From 27fb9688f9162515901ebf29e3879788fd326ea7 Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Tue, 6 Jan 2015 17:03:08 +0100 Subject: pci: Split pcie_host_mmcfg_map() The mmcfg space is a memory region that allows access to PCI config space in the PCIe world. To maintain abstraction layers, I would like to expose the mmcfg space as a sysbus mmio region rather than have it mapped straight into the system's memory address space though. So this patch splits the initialization of the mmcfg space from the actual mapping, allowing us to only have an mmfg memory region without the map. Signed-off-by: Alexander Graf Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin Reviewed-by: Claudio Fontana --- hw/pci/pcie_host.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'hw') diff --git a/hw/pci/pcie_host.c b/hw/pci/pcie_host.c index 3db038f..dfb4a2b 100644 --- a/hw/pci/pcie_host.c +++ b/hw/pci/pcie_host.c @@ -98,8 +98,7 @@ void pcie_host_mmcfg_unmap(PCIExpressHost *e) } } -void pcie_host_mmcfg_map(PCIExpressHost *e, hwaddr addr, - uint32_t size) +void pcie_host_mmcfg_init(PCIExpressHost *e, uint32_t size) { assert(!(size & (size - 1))); /* power of 2 */ assert(size >= PCIE_MMCFG_SIZE_MIN); @@ -107,6 +106,12 @@ void pcie_host_mmcfg_map(PCIExpressHost *e, hwaddr addr, e->size = size; memory_region_init_io(&e->mmio, OBJECT(e), &pcie_mmcfg_ops, e, "pcie-mmcfg", e->size); +} + +void pcie_host_mmcfg_map(PCIExpressHost *e, hwaddr addr, + uint32_t size) +{ + pcie_host_mmcfg_init(e, size); e->base_addr = addr; memory_region_add_subregion(get_system_memory(), e->base_addr, &e->mmio); } -- cgit v1.1