From: vijay.kilari@gmail.com
To: Ian.Campbell@citrix.com, julien.grall@citrix.com,
stefano.stabellini@eu.citrix.com, stefano.stabellini@citrix.com,
tim@xen.org, xen-devel@lists.xen.org
Cc: Prasun.Kapoor@caviumnetworks.com,
Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>,
manish.jaggi@caviumnetworks.com, vijay.kilari@gmail.com
Subject: [PATCH v6 26/31] xen/arm: ITS: Allocate pending_lpi descriptors for LPIs
Date: Mon, 31 Aug 2015 16:36:43 +0530 [thread overview]
Message-ID: <1441019208-2764-27-git-send-email-vijay.kilari@gmail.com> (raw)
In-Reply-To: <1441019208-2764-1-git-send-email-vijay.kilari@gmail.com>
From: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
Allocate dynamically pending_lpi descriptors for LPIs
Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
---
xen/arch/arm/vgic-v3-its.c | 9 +++++++++
xen/arch/arm/vgic.c | 20 +++++++++++++++++---
xen/include/asm-arm/domain.h | 3 +++
xen/include/asm-arm/vgic.h | 4 +++-
4 files changed, 32 insertions(+), 4 deletions(-)
diff --git a/xen/arch/arm/vgic-v3-its.c b/xen/arch/arm/vgic-v3-its.c
index 7c0375a..1d1fd64 100644
--- a/xen/arch/arm/vgic-v3-its.c
+++ b/xen/arch/arm/vgic-v3-its.c
@@ -908,6 +908,14 @@ int vits_domain_init(struct domain *d)
vits = d->arch.vgic.vits;
+ d->arch.vgic.pending_lpis = xzalloc_array(struct pending_irq,
+ d->arch.vgic.nr_lpis);
+ if ( d->arch.vgic.pending_lpis == NULL )
+ return -ENOMEM;
+
+ for ( i = 0; i < d->arch.vgic.nr_lpis; i++ )
+ vgic_init_pending_irq(&d->arch.vgic.pending_lpis[i], i + FIRST_GIC_LPI);
+
spin_lock_init(&vits->lock);
spin_lock_init(&vits->prop_lock);
@@ -937,6 +945,7 @@ void vits_domain_free(struct domain *d)
{
free_xenheap_pages(d->arch.vgic.vits->prop_page,
get_order_from_bytes(d->arch.vgic.vits->prop_size));
+ xfree(d->arch.vgic.pending_lpis);
xfree(d->arch.vgic.vits->collections);
xfree(d->arch.vgic.vits);
}
diff --git a/xen/arch/arm/vgic.c b/xen/arch/arm/vgic.c
index d5e9251..6e7ae9e 100644
--- a/xen/arch/arm/vgic.c
+++ b/xen/arch/arm/vgic.c
@@ -66,7 +66,13 @@ bool_t vgic_is_lpi_supported(struct domain *d)
return d->arch.vgic.handler->info->its_enabled;
}
-static void vgic_init_pending_irq(struct pending_irq *p, unsigned int virq)
+bool_t vgic_is_domain_lpi(struct domain *d, unsigned int lpi)
+{
+ return ((lpi >= FIRST_GIC_LPI) &&
+ (lpi < (d->arch.vgic.nr_lpis + FIRST_GIC_LPI)));
+}
+
+void vgic_init_pending_irq(struct pending_irq *p, unsigned int virq)
{
INIT_LIST_HEAD(&p->inflight);
INIT_LIST_HEAD(&p->lr_queue);
@@ -392,13 +398,21 @@ int vgic_to_sgi(struct vcpu *v, register_t sgir, enum gic_sgi_mode irqmode, int
struct pending_irq *irq_to_pending(struct vcpu *v, unsigned int irq)
{
- struct pending_irq *n;
+ struct pending_irq *n = NULL;
/* Pending irqs allocation strategy: the first vgic.nr_spis irqs
- * are used for SPIs; the rests are used for per cpu irqs */
+ * are used for SPIs; the rests are used for per cpu irqs.
+ * For LPIs pending_irq structures are allocated separately */
if ( irq < 32 )
n = &v->arch.vgic.pending_irqs[irq];
+#ifdef HAS_GICV3
+ else if ( vgic_is_domain_lpi(v->domain, irq) )
+ n = &v->domain->arch.vgic.pending_lpis[irq - FIRST_GIC_LPI];
+#endif
else
n = &v->domain->arch.vgic.pending_irqs[irq - 32];
+
+ ASSERT(n != NULL);
+
return n;
}
diff --git a/xen/include/asm-arm/domain.h b/xen/include/asm-arm/domain.h
index b48a1d9..f6ec403 100644
--- a/xen/include/asm-arm/domain.h
+++ b/xen/include/asm-arm/domain.h
@@ -103,6 +103,9 @@ struct arch_domain
* struct arch_vcpu.
*/
struct pending_irq *pending_irqs;
+#ifdef HAS_GICV3
+ struct pending_irq *pending_lpis;
+#endif
/* Base address for guest GIC */
paddr_t dbase; /* Distributor base address */
paddr_t cbase; /* CPU base address */
diff --git a/xen/include/asm-arm/vgic.h b/xen/include/asm-arm/vgic.h
index 1c88300..e971cab 100644
--- a/xen/include/asm-arm/vgic.h
+++ b/xen/include/asm-arm/vgic.h
@@ -339,6 +339,7 @@ extern int vgic_to_sgi(struct vcpu *v, register_t sgir,
enum gic_sgi_mode irqmode, int virq,
const struct sgi_target *target);
extern void vgic_migrate_irq(struct vcpu *old, struct vcpu *new, unsigned int irq);
+extern void vgic_init_pending_irq(struct pending_irq *p, unsigned int virq);
/* Reserve a specific guest vIRQ */
extern bool_t vgic_reserve_virq(struct domain *d, unsigned int virq);
@@ -371,7 +372,8 @@ void vgic_v3_setup_hw(paddr_t dbase,
const struct rdist_region *regions,
uint32_t rdist_stride);
#endif
-
+bool_t vgic_is_domain_lpi(struct domain *d, unsigned int lpi);
+
#endif /* __ASM_ARM_VGIC_H__ */
/*
--
1.7.9.5
next prev parent reply other threads:[~2015-08-31 11:06 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-31 11:06 [PATCH v6 00/31] Add ITS support vijay.kilari
2015-08-31 11:06 ` [PATCH v6 01/31] xen/dt: Handle correctly node with interrupt-map in dt_for_each_irq_map vijay.kilari
2015-08-31 14:20 ` Julien Grall
2015-09-02 15:28 ` Ian Campbell
2015-09-02 15:30 ` Wei Liu
2015-09-02 15:45 ` Julien Grall
2015-09-02 15:52 ` Ian Campbell
2015-09-04 14:41 ` Ian Campbell
2015-08-31 11:06 ` [PATCH v6 02/31] xen/arm: Add bitmap_find_next_zero_area helper function vijay.kilari
2015-08-31 11:06 ` [PATCH v6 03/31] xen: Add log2 functionality vijay.kilari
2015-08-31 11:21 ` Jan Beulich
2015-08-31 11:06 ` [PATCH v6 04/31] xen/arm: Set nr_cpu_ids to available number of cpus vijay.kilari
2015-08-31 14:25 ` Julien Grall
2015-09-09 12:48 ` Ian Campbell
2015-08-31 11:06 ` [PATCH v6 05/31] xen/arm: Rename NR_IRQs and vgic_num_irqs helper function vijay.kilari
2015-08-31 14:40 ` Julien Grall
2015-09-09 13:08 ` Ian Campbell
2015-09-09 13:23 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 06/31] xen/arm: ITS: Port ITS driver to Xen vijay.kilari
2015-08-31 15:41 ` Julien Grall
2015-09-03 17:02 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 07/31] xen/arm: ITS: Add helper functions to manage its_devices vijay.kilari
2015-08-31 11:06 ` [PATCH v6 08/31] xen/arm: ITS: Introduce msi_desc for LPIs vijay.kilari
2015-08-31 16:20 ` Julien Grall
2015-09-09 13:16 ` Ian Campbell
2015-09-09 13:28 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 09/31] xen/arm: ITS: Add APIs to add and assign device vijay.kilari
2015-09-03 17:34 ` Julien Grall
2015-09-09 13:28 ` Ian Campbell
2015-09-09 13:44 ` Julien Grall
2015-09-09 15:07 ` Ian Campbell
2015-09-09 16:19 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 10/31] xen/arm: ITS: Introduce gic_is_lpi helper function vijay.kilari
2015-08-31 16:49 ` Julien Grall
2015-09-01 9:02 ` Vijay Kilari
2015-09-01 11:40 ` Julien Grall
2015-09-01 11:56 ` Vijay Kilari
2015-09-01 13:02 ` Julien Grall
2015-09-03 6:32 ` Vijay Kilari
2015-09-03 9:48 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 11/31] xen/arm: ITS: Enable compilation of physical ITS driver vijay.kilari
2015-08-31 11:06 ` [PATCH v6 12/31] xen/arm: Move vgic locking inside get_irq_priority callback vijay.kilari
2015-08-31 16:34 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 13/31] xen/arm: ITS: implement hw_irq_controller for LPIs vijay.kilari
2015-08-31 17:53 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 14/31] xen/arm: ITS: Initialize physical ITS and export lpi support vijay.kilari
2015-08-31 18:35 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 15/31] xen/arm: ITS: Add virtual ITS driver vijay.kilari
2015-09-02 17:20 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 16/31] xen/arm: ITS: Add virtual ITS commands support vijay.kilari
2015-09-03 15:07 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 17/31] xen/arm: ITS: Store LPIs allocated and IRQ ID bits per domain vijay.kilari
2015-09-03 16:25 ` Julien Grall
2015-09-07 6:59 ` Vijay Kilari
2015-09-07 10:56 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 18/31] xen/arm: ITS: Enable virtual ITS driver vijay.kilari
2015-08-31 11:06 ` [PATCH v6 19/31] xen/arm: ITS: Export ITS info to Virtual ITS vijay.kilari
2015-09-03 16:48 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 20/31] xen/arm: ITS: Introduce helper to get number of event IDs vijay.kilari
2015-09-03 17:51 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 21/31] xen/arm: ITS: Add GITS registers emulation vijay.kilari
2015-09-07 13:14 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 22/31] xen/arm: ITS: Add virtual ITS availability check helper vijay.kilari
2015-09-07 13:41 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 23/31] xen/arm: ITS: Add 32-bit access to GICR_TYPER vijay.kilari
2015-08-31 16:06 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 24/31] xen/arm: ITS: Add GICR register emulation vijay.kilari
2015-09-07 14:20 ` Julien Grall
2015-09-07 15:26 ` Vijay Kilari
2015-09-09 13:55 ` Ian Campbell
2015-09-09 16:11 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 25/31] xen/arm: ITS: Allocate irq descriptors for LPIs vijay.kilari
2015-08-31 11:06 ` vijay.kilari [this message]
2015-08-31 11:06 ` [PATCH v6 27/31] xen/arm: ITS: Route LPIs vijay.kilari
2015-08-31 11:06 ` [PATCH v6 28/31] xen/arm: ITS: Add domain specific ITS initialization vijay.kilari
2015-08-31 11:06 ` [PATCH v6 29/31] xen/arm: ITS: Map ITS translation space vijay.kilari
2015-08-31 19:07 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 30/31] xen/arm: ITS: Generate ITS node for Dom0 vijay.kilari
2015-08-31 11:06 ` [PATCH v6 31/31] xen/arm: ITS: Add pci devices in ThunderX vijay.kilari
2015-09-09 15:22 ` Ian Campbell
2015-09-02 15:38 ` [PATCH v6 00/31] Add ITS support Ian Campbell
2015-09-02 15:52 ` Ian Campbell
2015-09-03 16:45 ` Julien Grall
2015-09-09 15:29 ` Ian Campbell
2015-09-14 11:00 ` Vijay Kilari
2015-09-14 11:09 ` Julien Grall
2015-09-14 13:04 ` Vijay Kilari
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