From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Mon, 14 Jun 2010 06:40:29 +0000 (+0200)
Subject: hpet: Init capability register only once
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=072c2c31c27204e8e1897c52e481d2ab0b4d075d;p=qemu.git

hpet: Init capability register only once

The capability register is read-only from guest POV, so we do not need
to update it on reset.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---

diff --git a/hw/hpet.c b/hw/hpet.c
index 93fc399169..e9b585c69b 100644
--- a/hw/hpet.c
+++ b/hw/hpet.c
@@ -648,10 +648,6 @@ static void hpet_reset(DeviceState *d)
 
     s->hpet_counter = 0ULL;
     s->hpet_offset = 0ULL;
-    /* 64-bit main counter; LegacyReplacementRoute. */
-    s->capability = 0x8086a001ULL;
-    s->capability |= (s->num_timers - 1) << HPET_ID_NUM_TIM_SHIFT;
-    s->capability |= ((HPET_CLK_PERIOD) << 32);
     s->config = 0ULL;
     if (count > 0) {
         /* we don't enable pit when hpet_reset is first called (by hpet_init)
@@ -696,6 +692,11 @@ static int hpet_init(SysBusDevice *dev)
         timer->state = s;
     }
 
+    /* 64-bit main counter; LegacyReplacementRoute. */
+    s->capability = 0x8086a001ULL;
+    s->capability |= (s->num_timers - 1) << HPET_ID_NUM_TIM_SHIFT;
+    s->capability |= ((HPET_CLK_PERIOD) << 32);
+
     isa_reserve_irq(RTC_ISA_IRQ);
     qdev_init_gpio_in(&dev->qdev, hpet_handle_rtc_irq, 1);