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| author | Bibo Mao <maobibo@loongson.cn> | 2025-06-06 14:30:30 +0800 |
|---|---|---|
| committer | Song Gao <gaosong@loongson.cn> | 2025-06-19 15:52:35 +0800 |
| commit | c642ddf19b248bb668e40a8d15089b877e4057fa (patch) | |
| tree | e6df9db7b9b7f819cb83ba8512fe515fb03d1c62 /hw/intc/loongarch_ipi.c | |
| parent | 0dd6798a1adda03dcfa6304437faa8e62a193d9c (diff) | |
| download | focaccia-qemu-c642ddf19b248bb668e40a8d15089b877e4057fa.tar.gz focaccia-qemu-c642ddf19b248bb668e40a8d15089b877e4057fa.zip | |
hw/loongarch/virt: Add reset support for kernel irqchip
When system reboot, interrupt controller is restored to initial state. However if interrupt controller extioi/ipi/pch_pic is emulated in kernel, it should notify kvm to do so. Here suspend and restore API is used for reset, set initial state in qemu user space and restore API is used to notify kvm to reload register state. Reviewed-by: Song Gao <gaosong@loongson.cn> Signed-off-by: Bibo Mao <maobibo@loongson.cn> Message-ID: <20250606063033.2557365-11-maobibo@loongson.cn> Signed-off-by: Song Gao <gaosong@loongson.cn>
Diffstat (limited to 'hw/intc/loongarch_ipi.c')
| -rw-r--r-- | hw/intc/loongarch_ipi.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/intc/loongarch_ipi.c b/hw/intc/loongarch_ipi.c index 0ea91ea054..fc8005c944 100644 --- a/hw/intc/loongarch_ipi.c +++ b/hw/intc/loongarch_ipi.c @@ -122,6 +122,10 @@ static void loongarch_ipi_reset_hold(Object *obj, ResetType type) core->clear = 0; memset(core->buf, 0, sizeof(core->buf)); } + + if (kvm_irqchip_in_kernel()) { + kvm_ipi_put(obj, 0); + } } static void loongarch_ipi_cpu_plug(HotplugHandler *hotplug_dev, |