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hmp: fix qemu crash due to ioapic state dump w/ split irqchip 

The qemu will crash when info ioapic through hmp if irqchip
is split. Below message is splat:

KVM_GET_IRQCHIP failed: Unknown error -6

This patch fix it by dumping the ioapic state from the qemu
emulated ioapic if irqchip is split.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Message-Id: <1474602456-3232-1-git-send-email-wanpeng.li@hotmail.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-ID: <20160923090824.GF15411@pxdev.xzpeter.org>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Wanpeng Li 2016-09-23 11:47:36 +08:00 committed by Dr. David Alan Gilbert
parent bbc4c3f4f3
commit 456d97d364
1 changed files with 2 additions and 1 deletions
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3
target-i386/monitor.c
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@ -504,7 +504,8 @@ void hmp_info_local_apic(Monitor *mon, const QDict *qdict)
void hmp_info_io_apic(Monitor *mon, const QDict *qdict)
{
if (kvm_irqchip_in_kernel()) {
if (kvm_irqchip_in_kernel() &&
!kvm_irqchip_is_split()) {
kvm_ioapic_dump_state(mon, qdict);
} else {
ioapic_dump_state(mon, qdict);