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hmp: added io apic dump state

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Added the hmp command to query io apic state, may be usefull after guest
crashes to understand IRQ routing in guest.

Implementation is only for kvm here. The dump will look like
(qemu) info ioapic
ioapic id=0x00 sel=0x26 (redir[11])
pin 0  0x0000000000010000 dest=0 vec=0   active-hi edge  masked fixed  physical
pin 1  0x0000000000000031 dest=0 vec=49  active-hi edge         fixed  physical
...
pin 23 0x0000000000010000 dest=0 vec=0   active-hi edge  masked fixed  physical
IRR        (none)
Remote IRR (none)

Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Andreas Färber <afaerber@suse.de>
Message-Id: <1442927901-1084-9-git-send-email-den@openvz.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Pavel Butsykin 2015-09-22 16:18:20 +03:00 • committed by Paolo Bonzini
parent af59940735
commit d665d696c5
7 changed files with 97 additions and 0 deletions
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4
include/hw/i386/pc.h
View file

@ -123,6 +123,10 @@ int pic_get_output(DeviceState *d);
void hmp_info_pic(Monitor *mon, const QDict *qdict);
void hmp_info_irq(Monitor *mon, const QDict *qdict);
/* ioapic.c */
void kvm_ioapic_dump_state(Monitor *mon, const QDict *qdict);
/* Global System Interrupts */
#define GSI_NUM_PINS IOAPIC_NUM_PINS