From: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Date: Thu, 27 Jul 2023 10:24:34 +0000 (+0000)
Subject: target/riscv: check the in-kernel irqchip support
X-Git-Tag: v8.2.0-rc0~132^2~15
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=97b9f5ef144151e2e8917ea64aca74a5751745ef;p=thirdparty%2Fqemu.git

target/riscv: check the in-kernel irqchip support

We check the in-kernel irqchip support when using KVM acceleration.

Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Reviewed-by: Jim Shu <jim.shu@sifive.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Message-ID: <20230727102439.22554-3-yongxuan.wang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---

diff --git a/target/riscv/kvm.c b/target/riscv/kvm.c
index dbcf26f27d3..2953547cb6a 100644
--- a/target/riscv/kvm.c
+++ b/target/riscv/kvm.c
@@ -926,7 +926,15 @@ int kvm_arch_init(MachineState *ms, KVMState *s)
 
 int kvm_arch_irqchip_create(KVMState *s)
 {
-    return 0;
+    if (kvm_kernel_irqchip_split()) {
+        error_report("-machine kernel_irqchip=split is not supported on RISC-V.");
+        exit(1);
+    }
+
+    /*
+     * We can create the VAIA using the newer device control API.
+     */
+    return kvm_check_extension(s, KVM_CAP_DEVICE_CTRL);
 }
 
 int kvm_arch_process_async_events(CPUState *cs)