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apic: save apic_delivered flag 

This patch implements saving/restoring of static apic_delivered variable.

v8: saving static variable only for one of the APICs

Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Message-Id: <20170126123429.5412.94368.stgit@PASHA-ISP>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Pavel Dovgalyuk 2017-01-26 15:34:29 +03:00 committed by Paolo Bonzini
parent 8499c8fca1
commit 07bfa35477
2 changed files with 35 additions and 0 deletions
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33
hw/intc/apic_common.c
View File

@ -385,6 +385,25 @@ static bool apic_common_sipi_needed(void *opaque)
return s->wait_for_sipi != 0;
}
static bool apic_irq_delivered_needed(void *opaque)
{
APICCommonState *s = APIC_COMMON(opaque);
return s->cpu == X86_CPU(first_cpu) && apic_irq_delivered != 0;
}
static void apic_irq_delivered_pre_save(void *opaque)
{
APICCommonState *s = APIC_COMMON(opaque);
s->apic_irq_delivered = apic_irq_delivered;
}
static int apic_irq_delivered_post_load(void *opaque, int version_id)
{
APICCommonState *s = APIC_COMMON(opaque);
apic_irq_delivered = s->apic_irq_delivered;
return 0;
}
static const VMStateDescription vmstate_apic_common_sipi = {
.name = "apic_sipi",
.version_id = 1,
@ -397,6 +416,19 @@ static const VMStateDescription vmstate_apic_common_sipi = {
}
};
static const VMStateDescription vmstate_apic_irq_delivered = {
.name = "apic_irq_delivered",
.version_id = 1,
.minimum_version_id = 1,
.needed = apic_irq_delivered_needed,
.pre_save = apic_irq_delivered_pre_save,
.post_load = apic_irq_delivered_post_load,
.fields = (VMStateField[]) {
VMSTATE_INT32(apic_irq_delivered, APICCommonState),
VMSTATE_END_OF_LIST()
}
};
static const VMStateDescription vmstate_apic_common = {
.name = "apic",
.version_id = 3,
@ -431,6 +463,7 @@ static const VMStateDescription vmstate_apic_common = {
},
.subsections = (const VMStateDescription*[]) {
&vmstate_apic_common_sipi,
&vmstate_apic_irq_delivered,
NULL
}
};

2
include/hw/i386/apic_internal.h
View File

@ -189,6 +189,8 @@ struct APICCommonState {
DeviceState *vapic;
hwaddr vapic_paddr; /* note: persistence via kvmvapic */
bool legacy_instance_id;
int apic_irq_delivered; /* for saving static variable */
};
typedef struct VAPICState {