Please backport the following xen-4.0-testing.hg changesets to
xen-3.4. They are necessary for kexec/kdump to work on MP guests.
Backporting is mostly obvious but the changeset 19691:c4b2a3c9a61a,
which is slightly different from 19912:721c14d7f60b, will cause a
conflict.
A combined diff which is ready to be applyed on xen-3.4-testing.hg is
also attached.
changeset: 19877:80839a223746
user: Keir Fraser <keir.fraser@xxxxxxxxxx>
date: Wed Jul 01 20:22:29 2009 +0100
files: tools/firmware/hvmloader/hvmloader.c
tools/firmware/hvmloader/mp_tables.c xen/arch/x86/hvm/vioapic.c
xen/arch/x86/hvm/vlapic.c xen/arch/x86/hvm/vpic.c
xen/include/asm-x86/hvm/domain.h xen/include/asm-x86/hvm/vlapic.h
description:
x86 hvm: Allow delivery of legacy 8259 interrupts to VCPUs != 0.
changeset: 19906:2fadef1b008f
user: Keir Fraser <keir.fraser@xxxxxxxxxx>
date: Tue Jul 07 14:08:47 2009 +0100
files: xen/arch/x86/hvm/hpet.c xen/include/asm-x86/hvm/vpt.h
description:
x86,hvm: cleanup hpet.c vcpu handling same as i8254.c/rtc.c
- introduce macros: domain_vhpet, vcpu_vhpet, vhpet_domain, vhpet_vcpu
- remove *vcpu field from struct HPETState
- modify guest_time_hpet() takes *vhpet instead of *vcpu as 1st
- argument
changeset: 19907:a29bb4efff00
user: Keir Fraser <keir.fraser@xxxxxxxxxx>
date: Tue Jul 07 14:21:16 2009 +0100
files: xen/arch/x86/hvm/hpet.c xen/arch/x86/hvm/i8254.c
xen/arch/x86/hvm/rtc.c xen/arch/x86/hvm/vlapic.c
xen/arch/x86/hvm/vpt.c xen/include/asm-x86/hvm/vpt.h
description:
x86,hvm: Allow delivery of timer interrupts to VCPUs != 0
This patch is needed for kexec/kdump since VCPU#0 is halted.
changeset: 19912:721c14d7f60b
user: Keir Fraser <keir.fraser@xxxxxxxxxx>
date: Wed Jul 08 14:22:00 2009 +0100
files: xen/arch/x86/hvm/hpet.c xen/arch/x86/hvm/i8254.c
xen/arch/x86/hvm/rtc.c xen/arch/x86/hvm/vlapic.c
xen/include/asm-x86/hvm/vlapic.h
description:
x86 hvm: Use 'x' as parameter name for macros converting between
{vcpu,domain} and {vlapic,vpic,vrtc,hpet}. Completely avoids
accidental aliasing.
diff -r 14709d196e43 tools/firmware/hvmloader/hvmloader.c
--- a/tools/firmware/hvmloader/hvmloader.c Wed Jun 30 18:26:13 2010 +0100
+++ b/tools/firmware/hvmloader/hvmloader.c Thu Jan 13 14:17:37 2011 +0900
@@ -141,13 +141,17 @@
static void apic_setup(void)
{
- /* Set the IOAPIC ID to tha static value used in the MP/ACPI tables. */
+ /* Set the IOAPIC ID to the static value used in the MP/ACPI tables. */
ioapic_write(0x00, IOAPIC_ID);
- /* Set up Virtual Wire mode. */
+ /* NMIs are delivered direct to the BSP. */
lapic_write(APIC_SPIV, APIC_SPIV_APIC_ENABLED | 0xFF);
- lapic_write(APIC_LVT0, APIC_MODE_EXTINT << 8);
- lapic_write(APIC_LVT1, APIC_MODE_NMI << 8);
+ lapic_write(APIC_LVT0, (APIC_MODE_EXTINT << 8) | APIC_LVT_MASKED);
+ lapic_write(APIC_LVT1, APIC_MODE_NMI << 8);
+
+ /* 8259A ExtInts are delivered through IOAPIC pin 0 (Virtual Wire Mode). */
+ ioapic_write(0x10, APIC_DM_EXTINT);
+ ioapic_write(0x11, SET_APIC_ID(LAPIC_ID(0)));
}
static void pci_setup(void)
diff -r 14709d196e43 tools/firmware/hvmloader/mp_tables.c
--- a/tools/firmware/hvmloader/mp_tables.c Wed Jun 30 18:26:13 2010 +0100
+++ b/tools/firmware/hvmloader/mp_tables.c Thu Jan 13 14:17:37 2011 +0900
@@ -233,21 +233,6 @@
}
-/* fills in an IO interrupt entry for IOAPIC 'ioapic_id' */
-static void fill_mp_io_intr_entry(
- struct mp_io_intr_entry *mpiie,
- int src_bus_id, int src_bus_irq, int ioapic_id, int dst_ioapic_intin)
-{
- mpiie->type = ENTRY_TYPE_IO_INTR;
- mpiie->intr_type = INTR_TYPE_INT;
- mpiie->io_intr_flags = (PCI_ISA_IRQ_MASK & (1U<<src_bus_irq)) ? 0xf : 0x0;
- mpiie->src_bus_id = src_bus_id;
- mpiie->src_bus_irq = src_bus_irq;
- mpiie->dst_ioapic_id = ioapic_id;
- mpiie->dst_ioapic_intin = dst_ioapic_intin;
-}
-
-
/* fill in the mp floating processor structure */
static void fill_mpfps(struct mp_floating_pointer_struct *mpfps, uint32_t mpct)
{
@@ -316,6 +301,7 @@
void *mp_table_base;
char *p;
int vcpu_nr, i, length;
+ struct mp_io_intr_entry *mpiie;
vcpu_nr = hvm_info->nr_vcpus;
@@ -343,12 +329,28 @@
fill_mp_ioapic_entry((struct mp_ioapic_entry *)p);
p += sizeof(struct mp_ioapic_entry);
+ /* I/O interrupt assignment: IOAPIC pin 0 is connected to 8259 ExtInt. */
+ mpiie = (struct mp_io_intr_entry *)p;
+ memset(mpiie, 0, sizeof(*mpiie));
+ mpiie->type = ENTRY_TYPE_IO_INTR;
+ mpiie->intr_type = INTR_TYPE_EXTINT;
+ mpiie->dst_ioapic_id = IOAPIC_ID;
+ p += sizeof(*mpiie);
+
+ /* I/O interrupt assignment for every legacy 8259 interrupt source. */
for ( i = 0; i < 16; i++ )
{
- if ( i == 2 ) continue; /* skip the slave PIC connection */
- fill_mp_io_intr_entry((struct mp_io_intr_entry *)p,
- BUS_ID_ISA, i, IOAPIC_ID, (i == 0) ? 2 : i);
- p += sizeof(struct mp_io_intr_entry);
+ if ( i == 2 )
+ continue; /* skip the slave PIC connection */
+ mpiie = (struct mp_io_intr_entry *)p;
+ mpiie->type = ENTRY_TYPE_IO_INTR;
+ mpiie->intr_type = INTR_TYPE_EXTINT;
+ mpiie->io_intr_flags = (PCI_ISA_IRQ_MASK & (1U << i)) ? 0xf : 0x0;
+ mpiie->src_bus_id = BUS_ID_ISA;
+ mpiie->src_bus_irq = i;
+ mpiie->dst_ioapic_id = IOAPIC_ID;
+ mpiie->dst_ioapic_intin = (i == 0) ? 2 : i;
+ p += sizeof(*mpiie);
}
length = p - (char *)mp_table_base;
diff -r 14709d196e43 xen/arch/x86/hvm/hpet.c
--- a/xen/arch/x86/hvm/hpet.c Wed Jun 30 18:26:13 2010 +0100
+++ b/xen/arch/x86/hvm/hpet.c Thu Jan 13 14:17:37 2011 +0900
@@ -24,6 +24,12 @@
#include <xen/sched.h>
#include <xen/event.h>
+#define domain_vhpet(x) (&(x)->arch.hvm_domain.pl_time.vhpet)
+#define vcpu_vhpet(x) (domain_vhpet((x)->domain))
+#define vhpet_domain(x) (container_of((x), struct domain, \
+ arch.hvm_domain.pl_time.vhpet))
+#define vhpet_vcpu(x) (pt_global_vcpu_target(vhpet_domain(x)))
+
#define HPET_BASE_ADDRESS 0xfed00000ULL
#define HPET_MMAP_SIZE 1024
#define S_TO_NS 1000000000ULL /* 1s = 10^9 ns */
@@ -31,7 +37,8 @@
/* Frequency_of_Xen_systeme_time / frequency_of_HPET = 16 */
#define STIME_PER_HPET_TICK 16
-#define guest_time_hpet(v) (hvm_get_guest_time(v) / STIME_PER_HPET_TICK)
+#define guest_time_hpet(hpet) \
+ (hvm_get_guest_time(vhpet_vcpu(hpet)) / STIME_PER_HPET_TICK)
#define HPET_ID 0x000
#define HPET_PERIOD 0x004
@@ -94,7 +101,7 @@
ASSERT(spin_is_locked(&h->lock));
if ( hpet_enabled(h) )
- return guest_time_hpet(h->vcpu) + h->mc_offset;
+ return guest_time_hpet(h) + h->mc_offset;
else
return h->hpet.mc64;
}
@@ -176,7 +183,7 @@
struct vcpu *v, unsigned long addr, unsigned long length,
unsigned long *pval)
{
- HPETState *h = &v->domain->arch.hvm_domain.pl_time.vhpet;
+ HPETState *h = vcpu_vhpet(v);
unsigned long result;
uint64_t val;
@@ -230,7 +237,7 @@
{
/* HPET specification requires PIT shouldn't generate
* interrupts if LegacyReplacementRoute is set for timer0 */
- PITState *pit = &h->vcpu->domain->arch.hvm_domain.pl_time.vpit;
+ PITState *pit = &vhpet_domain(h)->arch.hvm_domain.pl_time.vpit;
pit_stop_channel0_irq(pit);
}
@@ -272,7 +279,7 @@
* being enabled (now).
*/
oneshot = !timer_is_periodic(h, tn);
- create_periodic_time(h->vcpu, &h->pt[tn],
+ create_periodic_time(vhpet_vcpu(h), &h->pt[tn],
hpet_tick_to_ns(h, diff),
oneshot ? 0 : hpet_tick_to_ns(h, h->hpet.period[tn]),
irq, NULL, NULL);
@@ -290,7 +297,7 @@
struct vcpu *v, unsigned long addr,
unsigned long length, unsigned long val)
{
- HPETState *h = &v->domain->arch.hvm_domain.pl_time.vhpet;
+ HPETState *h = vcpu_vhpet(v);
uint64_t old_val, new_val;
int tn, i;
@@ -323,7 +330,7 @@
if ( !(old_val & HPET_CFG_ENABLE) && (new_val & HPET_CFG_ENABLE) )
{
/* Enable main counter and interrupt generation. */
- h->mc_offset = h->hpet.mc64 - guest_time_hpet(h->vcpu);
+ h->mc_offset = h->hpet.mc64 - guest_time_hpet(h);
for ( i = 0; i < HPET_TIMER_NUM; i++ )
{
h->hpet.comparator64[i] =
@@ -337,7 +344,7 @@
else if ( (old_val & HPET_CFG_ENABLE) && !(new_val & HPET_CFG_ENABLE) )
{
/* Halt main counter and disable interrupt generation. */
- h->hpet.mc64 = h->mc_offset + guest_time_hpet(h->vcpu);
+ h->hpet.mc64 = h->mc_offset + guest_time_hpet(h);
for ( i = 0; i < HPET_TIMER_NUM; i++ )
if ( timer_enabled(h, i) )
set_stop_timer(i);
@@ -487,13 +494,13 @@
static int hpet_save(struct domain *d, hvm_domain_context_t *h)
{
- HPETState *hp = &d->arch.hvm_domain.pl_time.vhpet;
+ HPETState *hp = domain_vhpet(d);
int rc;
spin_lock(&hp->lock);
/* Write the proper value into the main counter */
- hp->hpet.mc64 = hp->mc_offset + guest_time_hpet(hp->vcpu);
+ hp->hpet.mc64 = hp->mc_offset + guest_time_hpet(hp);
/* Save the HPET registers */
rc = _hvm_init_entry(h, HVM_SAVE_CODE(HPET), 0, HVM_SAVE_LENGTH(HPET));
@@ -531,7 +538,7 @@
static int hpet_load(struct domain *d, hvm_domain_context_t *h)
{
- HPETState *hp = &d->arch.hvm_domain.pl_time.vhpet;
+ HPETState *hp = domain_vhpet(d);
struct hvm_hw_hpet *rec;
uint64_t cmp;
int i;
@@ -572,7 +579,7 @@
#undef C
/* Recalculate the offset between the main counter and guest time */
- hp->mc_offset = hp->hpet.mc64 - guest_time_hpet(hp->vcpu);
+ hp->mc_offset = hp->hpet.mc64 - guest_time_hpet(hp);
/* restart all timers */
@@ -590,14 +597,13 @@
void hpet_init(struct vcpu *v)
{
- HPETState *h = &v->domain->arch.hvm_domain.pl_time.vhpet;
+ HPETState *h = vcpu_vhpet(v);
int i;
memset(h, 0, sizeof(HPETState));
spin_lock_init(&h->lock);
- h->vcpu = v;
h->stime_freq = S_TO_NS;
h->hpet_to_ns_scale = ((S_TO_NS * STIME_PER_HPET_TICK) << 10) /
h->stime_freq;
@@ -622,7 +628,7 @@
void hpet_deinit(struct domain *d)
{
int i;
- HPETState *h = &d->arch.hvm_domain.pl_time.vhpet;
+ HPETState *h = domain_vhpet(d);
spin_lock(&h->lock);
diff -r 14709d196e43 xen/arch/x86/hvm/i8254.c
--- a/xen/arch/x86/hvm/i8254.c Wed Jun 30 18:26:13 2010 +0100
+++ b/xen/arch/x86/hvm/i8254.c Thu Jan 13 14:17:37 2011 +0900
@@ -42,7 +42,7 @@
#define vcpu_vpit(x) (domain_vpit((x)->domain))
#define vpit_domain(x) (container_of((x), struct domain, \
arch.hvm_domain.pl_time.vpit))
-#define vpit_vcpu(x) (vpit_domain(x)->vcpu[0])
+#define vpit_vcpu(x) (pt_global_vcpu_target(vpit_domain(x)))
#define RW_STATE_LSB 1
#define RW_STATE_MSB 2
diff -r 14709d196e43 xen/arch/x86/hvm/rtc.c
--- a/xen/arch/x86/hvm/rtc.c Wed Jun 30 18:26:13 2010 +0100
+++ b/xen/arch/x86/hvm/rtc.c Thu Jan 13 14:17:37 2011 +0900
@@ -32,7 +32,7 @@
#define vcpu_vrtc(x) (domain_vrtc((x)->domain))
#define vrtc_domain(x) (container_of((x), struct domain, \
arch.hvm_domain.pl_time.vrtc))
-#define vrtc_vcpu(x) (vrtc_domain(x)->vcpu[0])
+#define vrtc_vcpu(x) (pt_global_vcpu_target(vrtc_domain(x)))
static void rtc_periodic_cb(struct vcpu *v, void *opaque)
{
diff -r 14709d196e43 xen/arch/x86/hvm/vioapic.c
--- a/xen/arch/x86/hvm/vioapic.c Wed Jun 30 18:26:13 2010 +0100
+++ b/xen/arch/x86/hvm/vioapic.c Thu Jan 13 14:17:37 2011 +0900
@@ -146,10 +146,14 @@
*pent = ent;
- if ( (ent.fields.trig_mode == VIOAPIC_LEVEL_TRIG) &&
- !ent.fields.mask &&
- !ent.fields.remote_irr &&
- hvm_irq->gsi_assert_count[idx] )
+ if ( idx == 0 )
+ {
+ vlapic_adjust_i8259_target(d);
+ }
+ else if ( (ent.fields.trig_mode == VIOAPIC_LEVEL_TRIG) &&
+ !ent.fields.mask &&
+ !ent.fields.remote_irr &&
+ hvm_irq->gsi_assert_count[idx] )
{
pent->fields.remote_irr = 1;
vioapic_deliver(vioapic, idx);
@@ -159,8 +163,7 @@
}
static void vioapic_write_indirect(
- struct hvm_hw_vioapic *vioapic, unsigned long addr,
- unsigned long length, unsigned long val)
+ struct hvm_hw_vioapic *vioapic, unsigned long length, unsigned long val)
{
switch ( vioapic->ioregsel )
{
@@ -213,7 +216,7 @@
break;
case VIOAPIC_REG_WINDOW:
- vioapic_write_indirect(vioapic, addr, length, val);
+ vioapic_write_indirect(vioapic, length, val);
break;
#if VIOAPIC_IS_IOSAPIC
diff -r 14709d196e43 xen/arch/x86/hvm/vlapic.c
--- a/xen/arch/x86/hvm/vlapic.c Wed Jun 30 18:26:13 2010 +0100
+++ b/xen/arch/x86/hvm/vlapic.c Thu Jan 13 14:17:37 2011 +0900
@@ -697,6 +697,8 @@
val |= APIC_LVT_MASKED;
val &= vlapic_lvt_mask[(offset - APIC_LVTT) >> 4];
vlapic_set_reg(vlapic, offset, val);
+ if ( offset == APIC_LVT0 )
+ vlapic_adjust_i8259_target(v->domain);
break;
case APIC_TMICT:
@@ -776,18 +778,46 @@
"apic base msr is 0x%016"PRIx64, vlapic->hw.apic_base_msr);
}
+static int __vlapic_accept_pic_intr(struct vcpu *v)
+{
+ struct domain *d = v->domain;
+ struct vlapic *vlapic = vcpu_vlapic(v);
+ uint32_t lvt0 = vlapic_get_reg(vlapic, APIC_LVT0);
+ union vioapic_redir_entry redir0 = domain_vioapic(d)->redirtbl[0];
+
+ /* We deliver 8259 interrupts to the appropriate CPU as follows. */
+ return ((/* IOAPIC pin0 is unmasked and routing to this LAPIC? */
+ ((redir0.fields.delivery_mode == dest_ExtINT) &&
+ !redir0.fields.mask &&
+ redir0.fields.dest_id == VLAPIC_ID(vlapic) &&
+ !vlapic_disabled(vlapic)) ||
+ /* LAPIC has LVT0 unmasked for ExtInts? */
+ ((lvt0 & (APIC_MODE_MASK|APIC_LVT_MASKED)) == APIC_DM_EXTINT) ||
+ /* LAPIC is fully disabled? */
+ vlapic_hw_disabled(vlapic)));
+}
+
int vlapic_accept_pic_intr(struct vcpu *v)
{
- struct vlapic *vlapic = vcpu_vlapic(v);
- uint32_t lvt0 = vlapic_get_reg(vlapic, APIC_LVT0);
+ return ((v == v->domain->arch.hvm_domain.i8259_target) &&
+ __vlapic_accept_pic_intr(v));
+}
- /*
- * Only CPU0 is wired to the 8259A. INTA cycles occur if LINT0 is set up
- * accept ExtInts, or if the LAPIC is disabled (so LINT0 behaves as INTR).
- */
- return ((v->vcpu_id == 0) &&
- (((lvt0 & (APIC_MODE_MASK|APIC_LVT_MASKED)) == APIC_DM_EXTINT) ||
- vlapic_hw_disabled(vlapic)));
+void vlapic_adjust_i8259_target(struct domain *d)
+{
+ struct vcpu *v;
+
+ for_each_vcpu ( d, v )
+ if ( __vlapic_accept_pic_intr(v) )
+ goto found;
+
+ v = d->vcpu ? d->vcpu[0] : NULL;
+
+ found:
+ if ( d->arch.hvm_domain.i8259_target == v )
+ return;
+ d->arch.hvm_domain.i8259_target = v;
+ pt_adjust_global_vcpu_target(v);
}
int vlapic_has_pending_irq(struct vcpu *v)
@@ -946,6 +976,7 @@
if ( hvm_load_entry(LAPIC_REGS, h, s->regs) != 0 )
return -EINVAL;
+ vlapic_adjust_i8259_target(d);
lapic_rearm(s);
return 0;
}
diff -r 14709d196e43 xen/arch/x86/hvm/vpic.c
--- a/xen/arch/x86/hvm/vpic.c Wed Jun 30 18:26:13 2010 +0100
+++ b/xen/arch/x86/hvm/vpic.c Thu Jan 13 14:17:37 2011 +0900
@@ -109,9 +109,9 @@
{
if ( vpic->is_master )
{
- /* Master INT line is connected to VCPU0's VLAPIC LVT0. */
- struct vcpu *v = vpic_domain(vpic)->vcpu[0];
- if ( (v != NULL) && vlapic_accept_pic_intr(v) )
+ /* Master INT line is connected in Virtual Wire Mode. */
+ struct vcpu *v = vpic_domain(vpic)->arch.hvm_domain.i8259_target;
+ if ( v != NULL )
vcpu_kick(v);
}
else
diff -r 14709d196e43 xen/arch/x86/hvm/vpt.c
--- a/xen/arch/x86/hvm/vpt.c Wed Jun 30 18:26:13 2010 +0100
+++ b/xen/arch/x86/hvm/vpt.c Thu Jan 13 14:17:37 2011 +0900
@@ -434,3 +434,53 @@
*/
kill_timer(&pt->timer);
}
+
+static void pt_adjust_vcpu(struct periodic_time *pt, struct vcpu *v)
+{
+ int on_list;
+
+ ASSERT(pt->source == PTSRC_isa);
+
+ if ( pt->vcpu == NULL )
+ return;
+
+ pt_lock(pt);
+ on_list = pt->on_list;
+ if ( pt->on_list )
+ list_del(&pt->list);
+ pt->on_list = 0;
+ pt_unlock(pt);
+
+ spin_lock(&v->arch.hvm_vcpu.tm_lock);
+ pt->vcpu = v;
+ if ( on_list )
+ {
+ pt->on_list = 1;
+ list_add(&pt->list, &v->arch.hvm_vcpu.tm_list);
+
+ migrate_timer(&pt->timer, v->processor);
+ }
+ spin_unlock(&v->arch.hvm_vcpu.tm_lock);
+}
+
+void pt_adjust_global_vcpu_target(struct vcpu *v)
+{
+ struct pl_time *pl_time = &v->domain->arch.hvm_domain.pl_time;
+ int i;
+
+ if ( v == NULL )
+ return;
+
+ spin_lock(&pl_time->vpit.lock);
+ pt_adjust_vcpu(&pl_time->vpit.pt0, v);
+ spin_unlock(&pl_time->vpit.lock);
+
+ spin_lock(&pl_time->vrtc.lock);
+ pt_adjust_vcpu(&pl_time->vrtc.pt, v);
+ spin_unlock(&pl_time->vrtc.lock);
+
+ spin_lock(&pl_time->vhpet.lock);
+ for ( i = 0; i < HPET_TIMER_NUM; i++ )
+ pt_adjust_vcpu(&pl_time->vhpet.pt[i], v);
+ spin_unlock(&pl_time->vhpet.lock);
+}
diff -r 14709d196e43 xen/include/asm-x86/hvm/domain.h
--- a/xen/include/asm-x86/hvm/domain.h Wed Jun 30 18:26:13 2010 +0100
+++ b/xen/include/asm-x86/hvm/domain.h Thu Jan 13 14:17:37 2011 +0900
@@ -56,6 +56,9 @@
struct hvm_vioapic *vioapic;
struct hvm_hw_stdvga stdvga;
+ /* VCPU which is current target for 8259 interrupts. */
+ struct vcpu *i8259_target;
+
/* hvm_print_line() logging. */
char pbuf[80];
int pbuf_idx;
diff -r 14709d196e43 xen/include/asm-x86/hvm/vlapic.h
--- a/xen/include/asm-x86/hvm/vlapic.h Wed Jun 30 18:26:13 2010 +0100
+++ b/xen/include/asm-x86/hvm/vlapic.h Thu Jan 13 14:17:37 2011 +0900
@@ -92,6 +92,8 @@
int vlapic_accept_pic_intr(struct vcpu *v);
+void vlapic_adjust_i8259_target(struct domain *d);
+
struct vlapic *apic_lowest_prio(struct domain *d, uint32_t bitmap);
int vlapic_match_logical_addr(struct vlapic *vlapic, uint8_t mda);
diff -r 14709d196e43 xen/include/asm-x86/hvm/vpt.h
--- a/xen/include/asm-x86/hvm/vpt.h Wed Jun 30 18:26:13 2010 +0100
+++ b/xen/include/asm-x86/hvm/vpt.h Thu Jan 13 14:17:37 2011 +0900
@@ -92,7 +92,6 @@
typedef struct HPETState {
struct hpet_registers hpet;
- struct vcpu *vcpu;
uint64_t stime_freq;
uint64_t hpet_to_ns_scale; /* hpet ticks to ns (multiplied by 2^10) */
uint64_t hpet_to_ns_limit; /* max hpet ticks convertable to ns */
@@ -145,6 +144,10 @@
void pt_reset(struct vcpu *v);
void pt_migrate(struct vcpu *v);
+void pt_adjust_global_vcpu_target(struct vcpu *v);
+#define pt_global_vcpu_target(d) \
+ ((d)->arch.hvm_domain.i8259_target ? : (d)->vcpu ? (d)->vcpu[0] : NULL)
+
/* Is given periodic timer active? */
#define pt_active(pt) ((pt)->on_list)
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