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 29/31] xen/arm: ITS: Map ITS translation space
Date: Mon, 31 Aug 2015 16:36:46 +0530 [thread overview]
Message-ID: <1441019208-2764-30-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>
ITS translation space contains GITS_TRANSLATER register
which is written by device to raise LPI. This space needs
to mapped to every domain address space for all physical
ITS available,so that device can access GITS_TRANSLATER
register using SMMU.
Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
---
v6: - corrected typo in commit message
- Removed check for dom0
---
xen/arch/arm/vgic-v3-its.c | 35 ++++++++++++++++++++++++++++++++++-
1 file changed, 34 insertions(+), 1 deletion(-)
diff --git a/xen/arch/arm/vgic-v3-its.c b/xen/arch/arm/vgic-v3-its.c
index 6334ca3..328c4db 100644
--- a/xen/arch/arm/vgic-v3-its.c
+++ b/xen/arch/arm/vgic-v3-its.c
@@ -885,6 +885,39 @@ static const struct mmio_handler_ops vgic_gits_mmio_handler = {
.write_handler = vgic_v3_gits_mmio_write,
};
+/*
+ * Map the 64K ITS translation space in guest.
+ * This is required purely for device smmu writes.
+*/
+
+static int vits_map_translation_space(struct domain *d)
+{
+ uint64_t addr, size;
+ int ret;
+
+ ASSERT(is_domain_direct_mapped(d));
+
+ addr = d->arch.vgic.vits->gits_base + SZ_64K;
+ size = SZ_64K;
+
+ /* Using 1:1 mapping to map translation space */
+ /* TODO: Handle DomU mapping */
+ ret = map_mmio_regions(d,
+ paddr_to_pfn(addr & PAGE_MASK),
+ DIV_ROUND_UP(size, PAGE_SIZE),
+ paddr_to_pfn(addr & PAGE_MASK));
+
+ if ( ret )
+ {
+ dprintk(XENLOG_G_ERR, "vITS: Unable to map to"
+ " 0x%"PRIx64" - 0x%"PRIx64" to dom%d\n",
+ addr & PAGE_MASK, PAGE_ALIGN(addr + size) - 1,
+ d->domain_id);
+ }
+
+ return ret;
+}
+
int vits_domain_init(struct domain *d)
{
struct vgic_its *vits;
@@ -938,7 +971,7 @@ int vits_domain_init(struct domain *d)
register_mmio_handler(d, &vgic_gits_mmio_handler, vits->gits_base, SZ_64K);
- return 0;
+ return vits_map_translation_space(d);
}
void vits_domain_free(struct domain *d)
--
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 ` [PATCH v6 26/31] xen/arm: ITS: Allocate pending_lpi " vijay.kilari
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 ` vijay.kilari [this message]
2015-08-31 19:07 ` [PATCH v6 29/31] xen/arm: ITS: Map ITS translation space 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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