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| author | Bibo Mao <maobibo@loongson.cn> | 2025-06-06 14:30:26 +0800 |
|---|---|---|
| committer | Song Gao <gaosong@loongson.cn> | 2025-06-19 15:48:22 +0800 |
| commit | 5b0e05b9023793197b82fd6feb275459adc9e10c (patch) | |
| tree | 201c9b46ad1f87ad4ec2630d83df838d45352f02 /hw/intc | |
| parent | f936caa315750406f50feb1ac9c93770b47ebe96 (diff) | |
| download | focaccia-qemu-5b0e05b9023793197b82fd6feb275459adc9e10c.tar.gz focaccia-qemu-5b0e05b9023793197b82fd6feb275459adc9e10c.zip | |
hw/intc/loongarch_pch_msi: Inject MSI interrupt to kernel
If kvm_irqchip_in_kernel() return true, MSI interrupt can be injected with API kvm_irqchip_send_msi() to KVM. Reviewed-by: Song Gao <gaosong@loongson.cn> Signed-off-by: Bibo Mao <maobibo@loongson.cn> Message-ID: <20250606063033.2557365-7-maobibo@loongson.cn> Signed-off-by: Song Gao <gaosong@loongson.cn>
Diffstat (limited to 'hw/intc')
| -rw-r--r-- | hw/intc/loongarch_pch_msi.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/hw/intc/loongarch_pch_msi.c b/hw/intc/loongarch_pch_msi.c index 06eb944da0..f6d163158d 100644 --- a/hw/intc/loongarch_pch_msi.c +++ b/hw/intc/loongarch_pch_msi.c @@ -13,6 +13,7 @@ #include "hw/pci/msi.h" #include "hw/misc/unimp.h" #include "migration/vmstate.h" +#include "system/kvm.h" #include "trace.h" static uint64_t loongarch_msi_mem_read(void *opaque, hwaddr addr, unsigned size) @@ -26,6 +27,15 @@ static void loongarch_msi_mem_write(void *opaque, hwaddr addr, LoongArchPCHMSI *s = (LoongArchPCHMSI *)opaque; int irq_num; + if (kvm_irqchip_in_kernel()) { + MSIMessage msg; + + msg.address = addr; + msg.data = val; + kvm_irqchip_send_msi(kvm_state, msg); + return; + } + /* * vector number is irq number from upper extioi intc * need subtract irq base to get msi vector offset |