boards/x86/qemu_x86/qemu_x86.dts

/dts-v1/;

#include <ia32.dtsi>

/ {
	model = "QEMU X86";
	compatible = "intel,ia32";

	aliases {
		uart_0 = &uart0;
		uart_1 = &uart1;
	};

	chosen {
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
		zephyr,console = &uart0;
		zephyr,bt-uart = &uart1;
		zephyr,uart-pipe = &uart1;
		zephyr,bt-mon-uart = &uart1;
	};
};

&uart0 {
	status = "ok";
	current-speed = <115200>;
};

&uart1 {
	status = "ok";
	current-speed = <115200>;
};