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[Qemu-devel] [PATCH 02/13] pci: add IOMMU support via the generic DMA la
From: |
Eduard - Gabriel Munteanu |
Subject: |
[Qemu-devel] [PATCH 02/13] pci: add IOMMU support via the generic DMA layer |
Date: |
Sat, 29 Jan 2011 19:40:23 +0200 |
IOMMUs can now be hooked onto the PCI bus. This makes use of the generic
DMA layer.
Signed-off-by: Eduard - Gabriel Munteanu <address@hidden>
---
hw/pci.c | 7 +++++++
hw/pci.h | 7 +++++++
hw/pci_internals.h | 1 +
3 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/hw/pci.c b/hw/pci.c
index 612ccaa..0a32a93 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -738,6 +738,7 @@ static PCIDevice *do_pci_register_device(PCIDevice
*pci_dev, PCIBus *bus,
return NULL;
}
pci_dev->bus = bus;
+ pci_dev->dma.mmu = &bus->mmu;
pci_dev->devfn = devfn;
pstrcpy(pci_dev->name, sizeof(pci_dev->name), name);
pci_dev->irq_state = 0;
@@ -2163,3 +2164,9 @@ int pci_qdev_find_device(const char *id, PCIDevice **pdev)
return rc;
}
+
+void pci_register_iommu(PCIDevice *dev, DMATranslateFunc *translate)
+{
+ dev->bus->mmu.iommu = &dev->qdev;
+ dev->bus->mmu.translate = translate;
+}
diff --git a/hw/pci.h b/hw/pci.h
index 550531b..4bb0a94 100644
--- a/hw/pci.h
+++ b/hw/pci.h
@@ -5,6 +5,7 @@
#include "qobject.h"
#include "qdev.h"
+#include "dma_rw.h"
/* PCI includes legacy ISA access. */
#include "isa.h"
@@ -128,6 +129,10 @@ enum {
struct PCIDevice {
DeviceState qdev;
+
+ /* For devices which do DMA. */
+ DMADevice dma;
+
/* PCI config space */
uint8_t *config;
@@ -267,6 +272,8 @@ void pci_bridge_update_mappings(PCIBus *b);
void pci_device_deassert_intx(PCIDevice *dev);
+void pci_register_iommu(PCIDevice *dev, DMATranslateFunc *translate);
+
static inline void
pci_set_byte(uint8_t *config, uint8_t val)
{
diff --git a/hw/pci_internals.h b/hw/pci_internals.h
index fbe1866..6452e8c 100644
--- a/hw/pci_internals.h
+++ b/hw/pci_internals.h
@@ -16,6 +16,7 @@ extern struct BusInfo pci_bus_info;
struct PCIBus {
BusState qbus;
+ DMAMmu mmu;
uint8_t devfn_min;
pci_set_irq_fn set_irq;
pci_map_irq_fn map_irq;
--
1.7.3.4
- [Qemu-devel] [PATCH 00/13] AMD IOMMU emulation patchset, Eduard - Gabriel Munteanu, 2011/01/29
- [Qemu-devel] [PATCH 02/13] pci: add IOMMU support via the generic DMA layer,
Eduard - Gabriel Munteanu <=
- [Qemu-devel] [PATCH 01/13] Generic DMA memory access interface, Eduard - Gabriel Munteanu, 2011/01/29
- [Qemu-devel] [PATCH 04/13] ide: use the DMA memory access interface for PCI IDE controllers, Eduard - Gabriel Munteanu, 2011/01/29
- [Qemu-devel] [PATCH 05/13] rtl8139: use the DMA memory access interface, Eduard - Gabriel Munteanu, 2011/01/29
- [Qemu-devel] [PATCH 03/13] AMD IOMMU emulation, Eduard - Gabriel Munteanu, 2011/01/29
- [Qemu-devel] [PATCH 07/13] ac97: use the DMA memory access interface, Eduard - Gabriel Munteanu, 2011/01/29
- [Qemu-devel] [PATCH 08/13] es1370: use the DMA memory access interface, Eduard - Gabriel Munteanu, 2011/01/29
- [Qemu-devel] [PATCH 06/13] eepro100: use the DMA memory access interface, Eduard - Gabriel Munteanu, 2011/01/29
- [Qemu-devel] [PATCH 09/13] e1000: use the DMA memory access interface, Eduard - Gabriel Munteanu, 2011/01/29
- [Qemu-devel] [PATCH 10/13] lsi53c895a: use the DMA memory access interface, Eduard - Gabriel Munteanu, 2011/01/29
- [Qemu-devel] [PATCH 11/13] pcnet: use the DMA memory access interface, Eduard - Gabriel Munteanu, 2011/01/29