motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-08 02:03:56 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

s390x/virtio-ccw: Adapter interrupt support.

Browse source 
Handle the new CCW_CMD_SET_IND_ADAPTER command enabling adapter interrupts
on guest request. When active, host->guest notifications will be handled
via global_indicator -> queue indicators instead of queue indicators +
subchannel I/O interrupt. Indicators for virtqueues may be present at an
offset.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
Cornelia Huck 2013-02-06 10:31:37 +01:00
parent f55ea6297c
commit 7e7494627f
7 changed files with 120 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

8
target-s390x/kvm.c
View file

@ -891,8 +891,12 @@ void kvm_s390_io_interrupt(S390CPU *cpu, uint16_t subchannel_id,
{
uint32_t type;
type = ((subchannel_id & 0xff00) << 24) |
((subchannel_id & 0x00060) << 22) | (subchannel_nr << 16);
if (io_int_word & IO_INT_WORD_AI) {
type = KVM_S390_INT_IO(1, 0, 0, 0);
} else {
type = ((subchannel_id & 0xff00) << 24) |
((subchannel_id & 0x00060) << 22) | (subchannel_nr << 16);
}
kvm_s390_interrupt_internal(cpu, type,
((uint32_t)subchannel_id << 16) | subchannel_nr,
((uint64_t)io_int_parm << 32) | io_int_word, 1);