From 70a2cb8e8d0f2ba549cc8d8b66e2f72e982ccd57 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Wed, 19 Feb 2020 11:08:56 -0500 Subject: [PATCH] arm/mps2-tz: use memdev for RAM MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit memory_region_allocate_system_memory() API is going away, so replace it with memdev allocated MemoryRegion. The later is initialized by generic code, so board only needs to opt in to memdev scheme by providing MachineClass::default_ram_id and using MachineState::ram instead of manually initializing RAM memory region. PS: while at it add check for user supplied RAM size and error out if it mismatches board expected value. Signed-off-by: Igor Mammedov Reviewed-by: Andrew Jones Reviewed-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20200219160953.13771-23-imammedo@redhat.com> --- hw/arm/mps2-tz.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/hw/arm/mps2-tz.c b/hw/arm/mps2-tz.c index f8b620bcc6..a8dea7dde1 100644 --- a/hw/arm/mps2-tz.c +++ b/hw/arm/mps2-tz.c @@ -39,6 +39,7 @@ #include "qemu/osdep.h" #include "qemu/units.h" +#include "qemu/cutils.h" #include "qapi/error.h" #include "qemu/error-report.h" #include "hw/arm/boot.h" @@ -79,7 +80,6 @@ typedef struct { MachineState parent; ARMSSE iotkit; - MemoryRegion psram; MemoryRegion ssram[3]; MemoryRegion ssram1_m; MPS2SCC scc; @@ -388,6 +388,13 @@ static void mps2tz_common_init(MachineState *machine) exit(1); } + if (machine->ram_size != mc->default_ram_size) { + char *sz = size_to_str(mc->default_ram_size); + error_report("Invalid RAM size, should be %s", sz); + g_free(sz); + exit(EXIT_FAILURE); + } + sysbus_init_child_obj(OBJECT(machine), "iotkit", &mms->iotkit, sizeof(mms->iotkit), mmc->armsse_type); iotkitdev = DEVICE(&mms->iotkit); @@ -458,9 +465,7 @@ static void mps2tz_common_init(MachineState *machine) * tradeoffs. For QEMU they're all just RAM, though. We arbitrarily * call the 16MB our "system memory", as it's the largest lump. */ - memory_region_allocate_system_memory(&mms->psram, - NULL, "mps.ram", 16 * MiB); - memory_region_add_subregion(system_memory, 0x80000000, &mms->psram); + memory_region_add_subregion(system_memory, 0x80000000, machine->ram); /* The overflow IRQs for all UARTs are ORed together. * Tx, Rx and "combined" IRQs are sent to the NVIC separately. @@ -642,6 +647,8 @@ static void mps2tz_class_init(ObjectClass *oc, void *data) mc->init = mps2tz_common_init; iic->check = mps2_tz_idau_check; + mc->default_ram_size = 16 * MiB; + mc->default_ram_id = "mps.ram"; } static void mps2tz_an505_class_init(ObjectClass *oc, void *data)