Replace Bash qvm scripts with Go CLI implementation

internal/vm/qemu.go

@@ -0,0 +1,54 @@
+package vm
+
+import (
+	"fmt"
+	"qvm/internal/config"
+	"qvm/internal/virtiofsd"
+	"strconv"
+)
+
+func buildQEMUCommand(cfg *config.Config, sshPort int, mounts []virtiofsd.Mount) []string {
+	args := []string{
+		"qemu-system-x86_64",
+		"-enable-kvm",
+	}
+
+	memSize := cfg.VM.Memory
+	args = append(args,
+		"-object", fmt.Sprintf("memory-backend-memfd,id=mem,size=%s,share=on", memSize),
+		"-numa", "node,memdev=mem",
+	)
+
+	args = append(args,
+		"-smp", strconv.Itoa(cfg.VM.CPUs),
+	)
+
+	args = append(args,
+		"-drive", fmt.Sprintf("if=virtio,file=%s,format=qcow2", config.Overlay),
+	)
+
+	args = append(args,
+		"-nic", fmt.Sprintf("user,model=virtio-net-pci,hostfwd=tcp::%d-:22", sshPort),
+	)
+
+	args = append(args,
+		"-serial", fmt.Sprintf("file:%s", config.SerialLog),
+	)
+
+	args = append(args,
+		"-qmp", fmt.Sprintf("unix:%s,server,nowait", config.QMPSocket),
+	)
+
+	args = append(args,
+		"-display", "none",
+	)
+
+	for _, mount := range mounts {
+		args = append(args,
+			"-chardev", fmt.Sprintf("socket,id=%s,path=%s", mount.Tag, mount.SocketPath),
+			"-device", fmt.Sprintf("vhost-user-fs-pci,queue-size=1024,chardev=%s,tag=%s", mount.Tag, mount.Tag),
+		)
+	}
+
+	return args
+}