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-rw-r--r--include/hw/i386/pc.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 7297848..7e43b20 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -277,6 +277,8 @@ int cmos_get_fd_drive_type(FloppyDriveType fd0);
#define FW_CFG_IO_BASE 0x510
+#define PORT92_A20_LINE "a20"
+
/* acpi_piix.c */
I2CBus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,