| Message ID | 1579779525-20065-21-git-send-email-imammedo@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | refactor main RAM allocation to use hostmem backend | expand |
On Thu, Jan 23, 2020 at 12:37:45PM +0100, Igor Mammedov wrote: > 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 <imammedo@redhat.com> > --- > v2: > * fix format string causing build failure on 32-bit host > (Philippe Mathieu-Daudé <philmd@redhat.com>) > > CC: drjones@redhat.com > CC: peter.maydell@linaro.org > CC: qemu-arm@nongnu.org > --- > 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 f8b620b..06dacf6 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 +647,7 @@ static void mps2tz_class_init(ObjectClass *oc, void *data) > > mc->init = mps2tz_common_init; > iic->check = mps2_tz_idau_check; > + mc->default_ram_id = "mps.ram"; > } > > static void mps2tz_an505_class_init(ObjectClass *oc, void *data) > @@ -657,6 +663,7 @@ static void mps2tz_an505_class_init(ObjectClass *oc, void *data) > mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m33"); > mmc->scc_id = 0x41045050; > mmc->armsse_type = TYPE_IOTKIT; > + mc->default_ram_size = 16 * MiB; Shouldn't this line be added to mps2tz_class_init ? Thanks, drew > } > > static void mps2tz_an521_class_init(ObjectClass *oc, void *data) > -- > 2.7.4 >
On Thu, 23 Jan 2020 13:59:09 +0100 Andrew Jones <drjones@redhat.com> wrote: > On Thu, Jan 23, 2020 at 12:37:45PM +0100, Igor Mammedov wrote: > > 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 <imammedo@redhat.com> > > --- > > v2: > > * fix format string causing build failure on 32-bit host > > (Philippe Mathieu-Daudé <philmd@redhat.com>) > > > > CC: drjones@redhat.com > > CC: peter.maydell@linaro.org > > CC: qemu-arm@nongnu.org > > --- > > 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 f8b620b..06dacf6 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 +647,7 @@ static void mps2tz_class_init(ObjectClass *oc, void *data) > > > > mc->init = mps2tz_common_init; > > iic->check = mps2_tz_idau_check; > > + mc->default_ram_id = "mps.ram"; > > } > > > > static void mps2tz_an505_class_init(ObjectClass *oc, void *data) > > @@ -657,6 +663,7 @@ static void mps2tz_an505_class_init(ObjectClass *oc, void *data) > > mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m33"); > > mmc->scc_id = 0x41045050; > > mmc->armsse_type = TYPE_IOTKIT; > > + mc->default_ram_size = 16 * MiB; > > Shouldn't this line be added to mps2tz_class_init ? Yep, it should be there > > Thanks, > drew > > > } > > > > static void mps2tz_an521_class_init(ObjectClass *oc, void *data) > > -- > > 2.7.4 > >
On Thu, Jan 23, 2020 at 02:39:48PM +0100, Igor Mammedov wrote: > On Thu, 23 Jan 2020 13:59:09 +0100 > Andrew Jones <drjones@redhat.com> wrote: > > > On Thu, Jan 23, 2020 at 12:37:45PM +0100, Igor Mammedov wrote: > > > 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 <imammedo@redhat.com> > > > --- > > > v2: > > > * fix format string causing build failure on 32-bit host > > > (Philippe Mathieu-Daudé <philmd@redhat.com>) > > > > > > CC: drjones@redhat.com > > > CC: peter.maydell@linaro.org > > > CC: qemu-arm@nongnu.org > > > --- > > > 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 f8b620b..06dacf6 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 +647,7 @@ static void mps2tz_class_init(ObjectClass *oc, void *data) > > > > > > mc->init = mps2tz_common_init; > > > iic->check = mps2_tz_idau_check; > > > + mc->default_ram_id = "mps.ram"; > > > } > > > > > > static void mps2tz_an505_class_init(ObjectClass *oc, void *data) > > > @@ -657,6 +663,7 @@ static void mps2tz_an505_class_init(ObjectClass *oc, void *data) > > > mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m33"); > > > mmc->scc_id = 0x41045050; > > > mmc->armsse_type = TYPE_IOTKIT; > > > + mc->default_ram_size = 16 * MiB; > > > > Shouldn't this line be added to mps2tz_class_init ? > > Yep, it should be there With that change you can add my r-b. Thanks, drew
On Thu, Jan 23, 2020 at 03:37:11PM +0100, Igor Mammedov wrote: > 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 <imammedo@redhat.com> > --- > v2: > * fix format string causing build failure on 32-bit host > (Philippe Mathieu-Daudé <philmd@redhat.com>) > v4: > * move default_ram_size to mps2tz_class_init() > (Andrew Jones <drjones@redhat.com>) > > CC: drjones@redhat.com > CC: peter.maydell@linaro.org > CC: qemu-arm@nongnu.org > > mps2-tz > --- > hw/arm/mps2-tz.c | 15 +++++++++++---- > 1 file changed, 11 insertions(+), 4 deletions(-) > Reviewed-by: Andrew Jones <drjones@redhat.com>
diff --git a/hw/arm/mps2-tz.c b/hw/arm/mps2-tz.c index f8b620b..06dacf6 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 +647,7 @@ static void mps2tz_class_init(ObjectClass *oc, void *data) mc->init = mps2tz_common_init; iic->check = mps2_tz_idau_check; + mc->default_ram_id = "mps.ram"; } static void mps2tz_an505_class_init(ObjectClass *oc, void *data) @@ -657,6 +663,7 @@ static void mps2tz_an505_class_init(ObjectClass *oc, void *data) mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m33"); mmc->scc_id = 0x41045050; mmc->armsse_type = TYPE_IOTKIT; + mc->default_ram_size = 16 * MiB; } static void mps2tz_an521_class_init(ObjectClass *oc, void *data)
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 <imammedo@redhat.com> --- v2: * fix format string causing build failure on 32-bit host (Philippe Mathieu-Daudé <philmd@redhat.com>) CC: drjones@redhat.com CC: peter.maydell@linaro.org CC: qemu-arm@nongnu.org --- hw/arm/mps2-tz.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-)