x86_64/debug: add support for QEMU debug console

1 files changed, 26 insertions, 0 deletions

diff --git a/arch/x86_64/include/x86_64/debug/qemu_output.hpp b/arch/x86_64/include/x86_64/debug/qemu_output.hpp
new file mode 100644
index 0000000..759a66b
--- /dev/null
+++ b/arch/x86_64/include/x86_64/debug/qemu_output.hpp
@@ -0,0 +1,26 @@
+#ifndef TEACHOS_X86_64_DEBUG_QEMU_OUTPUT_HPP
+#define TEACHOS_X86_64_DEBUG_QEMU_OUTPUT_HPP
+
+#include "kapi/cio.hpp"
+
+#include "x86_64/device_io/port_io.hpp"
+
+#include <string_view>
+
+namespace teachos::debug::x86_64
+{
+  struct qemu_output : cio::output_device
+  {
+    using dbg = io::x86_64::port<0xE9, char, io::x86_64::port_write>;
+
+    qemu_output(output_device & lower);
+
+    auto write(cio::output_stream stream, std::string_view text) -> void override;
+
+  private:
+    output_device & m_lower;
+  };
+
+}  // namespace teachos::debug::x86_64
+
+#endif
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