[Qemu-devel] [PATCH 16/27] acpi: ich9: allow guest to clear SCI rised by GPE

[Igor Mammedov]

it fixes IRQ storm since guest isn't able to lower SCI IRQ
after it has been handled when it clears GPE event.

Signed-off-by: Igor Mammedov <address@hidden>
---
 hw/acpi/ich9.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
index e59688b..fb88162 100644
--- a/hw/acpi/ich9.c
+++ b/hw/acpi/ich9.c
@@ -61,6 +61,7 @@ static void ich9_gpe_writeb(void *opaque, hwaddr addr, 
uint64_t val,
 {
     ICH9LPCPMRegs *pm = opaque;
     acpi_gpe_ioport_writeb(&pm->acpi_regs, addr, val);
+    acpi_update_sci(&pm->acpi_regs, pm->irq, ACPI_MEMORY_HOTPLUG_STATUS);
 }
 
 static const MemoryRegionOps ich9_gpe_ops = {
-- 
1.7.1