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authorPeng Hao <peng.hao2@zte.com.cn>2018-10-19 03:19:13 +0800
committerPaolo Bonzini <pbonzini@redhat.com>2018-10-19 13:44:11 +0200
commitf98167ea069190f738c1e79188b4b2325ca08006 (patch)
treea0a8f9b2bd513e603f1862c1f6e0de10df400b36 /hw/timer/mc146818rtc.c
parente6d34aeea6aad52b01956d9cc29e81887939b9ea (diff)
target-i386: add rtc 0x70 port as coalesced_pio
Signed-off-by: Peng Hao <peng.hao2@zte.com.cn> Message-Id: <1539890353-30273-1-git-send-email-peng.hao2@zte.com.cn> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/timer/mc146818rtc.c')
-rw-r--r--hw/timer/mc146818rtc.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/hw/timer/mc146818rtc.c b/hw/timer/mc146818rtc.c
index acee47da0e..e4e4de8b8a 100644
--- a/hw/timer/mc146818rtc.c
+++ b/hw/timer/mc146818rtc.c
@@ -34,6 +34,7 @@
#include "qapi/qapi-commands-misc.h"
#include "qapi/qapi-events-misc.h"
#include "qapi/visitor.h"
+#include "exec/address-spaces.h"
#ifdef TARGET_I386
#include "hw/i386/apic.h"
@@ -70,6 +71,7 @@ typedef struct RTCState {
ISADevice parent_obj;
MemoryRegion io;
+ MemoryRegion coalesced_io;
uint8_t cmos_data[128];
uint8_t cmos_index;
int32_t base_year;
@@ -990,6 +992,13 @@ static void rtc_realizefn(DeviceState *dev, Error **errp)
memory_region_init_io(&s->io, OBJECT(s), &cmos_ops, s, "rtc", 2);
isa_register_ioport(isadev, &s->io, base);
+ /* register rtc 0x70 port for coalesced_pio */
+ memory_region_set_flush_coalesced(&s->io);
+ memory_region_init_io(&s->coalesced_io, OBJECT(s), &cmos_ops,
+ s, "rtc-index", 1);
+ memory_region_add_subregion(&s->io, 0, &s->coalesced_io);
+ memory_region_add_coalescing(&s->coalesced_io, 0, 1);
+
qdev_set_legacy_instance_id(dev, base, 3);
qemu_register_reset(rtc_reset, s);