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hw/avr/atmega: Fix wrong initial value of stack pointer

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The current implementation initializes the stack pointer of AVR devices
to 0. Although older AVR devices used to be like that, newer ones set
it to RAMEND.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1525
Signed-off-by: Gihun Nam <gihun.nam@outlook.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <PH0P222MB0010877445B594724D40C924DEBDA@PH0P222MB0010.NAMP222.PROD.OUTLOOK.COM>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Gihun Nam 2023-11-27 11:54:20 +09:00 • committed by Philippe Mathieu-Daudé
parent 0ed083a1bc
commit 235948bf53
3 changed files with 16 additions and 1 deletions
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4
hw/avr/atmega.c
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@ -233,6 +233,10 @@ static void atmega_realize(DeviceState *dev, Error **errp)
/* CPU */
object_initialize_child(OBJECT(dev), "cpu", &s->cpu, mc->cpu_type);
object_property_set_uint(OBJECT(&s->cpu), "init-sp",
mc->io_size + mc->sram_size - 1, &error_abort);
qdev_realize(DEVICE(&s->cpu), NULL, &error_abort);
cpudev = DEVICE(&s->cpu);