This was tested with macOS 10.12.5 and Clover r4114.

Without this patch, the macOS boot process gets stuck at the Apple logo
without showing any progress bar.

I have documented the process of running macOS on QEMU/KVM at,

Instead of using this patch, adding an additional command-line knob
which exposes this setting (force_rev1_fadt) to the user might be a more
general solution.
 hw/i386/acpi-build.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index b9c245c..0f8df19 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -145,6 +145,7 @@ static void acpi_get_pm_info(AcpiPmInfo *pm)
             object_property_get_uint(obj, ACPI_PCIHP_IO_LEN_PROP, NULL);
     if (lpc) {
+        pm->force_rev1_fadt = true;
         obj = lpc;
         pm->cpu_hp_io_base = ICH9_CPU_HOTPLUG_IO_BASE;

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