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authorEfimov Vasily <real@ispras.ru>2016-06-22 15:24:52 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2016-06-29 14:03:46 +0200
commitd812b3d68ddf0efe91a088ecc8b177865b0bab8d (patch)
tree9c3e02996d8da6473a836155eec6f0902d4cd9aa /include
parent3115b9e2d286188a54d6f415186ae556046b68a3 (diff)
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port92: handle A20 IRQ as GPIO
The port92 device has outgouing IRQ line A20. Currently the IRQ is referenced by a pointer which normally is set during machine initialization. The pointer is never changed at runtime. Hence, common GPIO model can be applied to A20 IRQ line. Note that checking for IRQ to be connected as in previous version of code is not required qemu_set_irq will do it. Signed-off-by: Efimov Vasily <real@ispras.ru> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include')
-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,