On 02/01/2023 19.25, Bernhard Beschow wrote:


Am 2. Januar 2023 17:03:29 UTC schrieb Thomas Huth <th...@redhat.com>:
On 21/12/2022 17.59, Bernhard Beschow wrote:
Just like in the real hardware (and in PIIX4), create the RTC
controllers in the south bridges.

Signed-off-by: Bernhard Beschow <shen...@gmail.com>
Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
Message-Id: <20221022150508.26830-11-shen...@gmail.com>
---
   hw/i386/pc.c                  | 12 +++++++++++-
   hw/i386/pc_piix.c             |  8 ++++++++
   hw/i386/pc_q35.c              |  1 +
   hw/isa/Kconfig                |  2 ++
   hw/isa/lpc_ich9.c             |  8 ++++++++
   hw/isa/piix3.c                | 15 +++++++++++++++
   include/hw/i386/ich9.h        |  2 ++
   include/hw/southbridge/piix.h |  3 +++
   8 files changed, 50 insertions(+), 1 deletion(-)

diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index fa69b6f43e..d154eedcb3 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1299,7 +1299,17 @@ void pc_basic_device_init(struct PCMachineState *pcms,
           pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT);
           rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT);
       }
-    *rtc_state = mc146818_rtc_init(isa_bus, 2000, rtc_irq);
+
+    if (rtc_irq) {
+        qdev_connect_gpio_out(DEVICE(*rtc_state), 0, rtc_irq);
+    } else {
+        uint32_t irq = object_property_get_uint(OBJECT(*rtc_state),
+                                                "irq",
+                                                &error_fatal);
+        isa_connect_gpio_out(*rtc_state, 0, irq);
+    }
+    object_property_add_alias(OBJECT(pcms), "rtc-time", OBJECT(*rtc_state),
+                              "date");
I think you could turn now the "ISADevice **rtc_state" parameter of this function into a 
normal "ISADevice *rtc_state" since the pointer is not a return value anymore.

This is done in patch 9/30: 
https://lists.gnu.org/archive/html/qemu-devel/2022-12/msg03799.html

Ah, right, sorry for my shortsightness, then this is fine here:

Reviewed-by: Thomas Huth <th...@redhat.com>


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