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[PATCH] hpet: do not overwrite properties on post_load


From: Paolo Bonzini
Subject: [PATCH] hpet: do not overwrite properties on post_load
Date: Thu, 5 Dec 2024 21:37:21 +0100

Migration relies on having the same device configuration on the source
and destination.  Therefore, there is no need to modify flags,
timer capabilities and the fw_cfg HPET block id on migration;
it was set to exactly the same values by realize.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/timer/hpet.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/hw/timer/hpet.c b/hw/timer/hpet.c
index 5399f1b2a3f..18c8ce26e0d 100644
--- a/hw/timer/hpet.c
+++ b/hw/timer/hpet.c
@@ -275,16 +275,6 @@ static int hpet_post_load(void *opaque, int version_id)
                         - qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
     }
 
-    /* Push number of timers into capability returned via HPET_ID */
-    s->capability &= ~HPET_ID_NUM_TIM_MASK;
-    s->capability |= (s->num_timers - 1) << HPET_ID_NUM_TIM_SHIFT;
-    hpet_cfg.hpet[s->hpet_id].event_timer_block_id = (uint32_t)s->capability;
-
-    /* Derive HPET_MSI_SUPPORT from the capability of the first timer. */
-    s->flags &= ~(1 << HPET_MSI_SUPPORT);
-    if (s->timer[0].config & HPET_TN_FSB_CAP) {
-        s->flags |= 1 << HPET_MSI_SUPPORT;
-    }
     return 0;
 }
 
-- 
2.47.1




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