[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 01/11] acpi: piix4: remove not needed GPE0 mask
From: |
Igor Mammedov |
Subject: |
[Qemu-devel] [PATCH 01/11] acpi: piix4: remove not needed GPE0 mask |
Date: |
Fri, 13 Dec 2013 17:22:06 +0100 |
Hardcoded GPE0 mask isn't really needed. Since GPE0_STS initialized
with all bits cleared and only QEMU itself can set bits there (i.e.
guest can only clear bits in it). So guest can't triger SCI
by setting _STS & _EN bits and there is not reason to mask out not
supported _STS bits since they shouldn't be set by QEMU in the first
place.
Signed-off-by: Igor Mammedov <address@hidden>
---
hw/acpi/piix4.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index 93849c8..b4caeab 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -122,8 +122,7 @@ static void pm_update_sci(PIIX4PMState *s)
ACPI_BITMASK_POWER_BUTTON_ENABLE |
ACPI_BITMASK_GLOBAL_LOCK_ENABLE |
ACPI_BITMASK_TIMER_ENABLE)) != 0) ||
- (((s->ar.gpe.sts[0] & s->ar.gpe.en[0]) &
- (PIIX4_PCI_HOTPLUG_STATUS | PIIX4_CPU_HOTPLUG_STATUS)) != 0);
+ ((s->ar.gpe.sts[0] & s->ar.gpe.en[0]) != 0);
qemu_set_irq(s->irq, sci_level);
/* schedule a timer interruption if needed */
--
1.8.3.1