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hw/intc: Fix LoongArch ipi device emulation

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In ipi_send function, it should not to set irq before
writing data to dest cpu iocsr space, as the irq will
trigger after data writing.
When call this function 'address_space_stl()', it will
trigger loongarch_ipi_writel(), the addr arg is 0x1008
('CORE_SET_OFF'), and qemu_irq_raise will be called in
this case.

Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220930095139.867115-3-yangxiaojuan@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
This commit is contained in:
Xiaojuan Yang 2022-09-30 17:51:39 +08:00 committed by Song Gao
parent 7bf36a5c52
commit 5ef4a4af8b
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1 changed files with 0 additions and 1 deletions
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hw/intc/loongarch_ipi.c
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@ -88,7 +88,6 @@ static void ipi_send(uint64_t val)
cs = qemu_get_cpu(cpuid);
cpu = LOONGARCH_CPU(cs);
env = &cpu->env;
loongarch_cpu_set_irq(cpu, IRQ_IPI, 1);
address_space_stl(&env->address_space_iocsr, 0x1008,
data, MEMTXATTRS_UNSPECIFIED, NULL);