The OSPI DMA reads flash data through the OSPI linear address space (the iomem_dac region), because of this the reentrancy guard introduced in commit a2e1753b ("memory: prevent dma-reentracy issues") is disabled for the memory region.
Signed-off-by: Sai Pavan Boddu <sai.pavan.bo...@amd.com> --- hw/ssi/xlnx-versal-ospi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/ssi/xlnx-versal-ospi.c b/hw/ssi/xlnx-versal-ospi.c index 1a61679c2f..5123e7dde7 100644 --- a/hw/ssi/xlnx-versal-ospi.c +++ b/hw/ssi/xlnx-versal-ospi.c @@ -1772,6 +1772,7 @@ static void xlnx_versal_ospi_init(Object *obj) memory_region_init_io(&s->iomem_dac, obj, &ospi_dac_ops, s, TYPE_XILINX_VERSAL_OSPI "-dac", 0x20000000); sysbus_init_mmio(sbd, &s->iomem_dac); + s->iomem_dac.disable_reentrancy_guard = true; sysbus_init_irq(sbd, &s->irq); -- 2.25.1