[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v3] hw/arm/virt: Add high MMIO PCI region
From: |
Pavel Fedin |
Subject: |
[Qemu-devel] [PATCH v3] hw/arm/virt: Add high MMIO PCI region |
Date: |
Mon, 27 Jul 2015 14:09:28 +0300 |
This large region is necessary for some devices like ivshmem and video cards
Signed-off-by: Pavel Fedin <address@hidden>
---
Changes since v2:
- Region size increased to 512G
- Added ACPI description
Changes since v1:
- Region address changed to 512G, leaving more space for RAM
---
hw/arm/virt-acpi-build.c | 8 ++++++++
hw/arm/virt.c | 13 ++++++++++++-
include/hw/arm/virt.h | 1 +
3 files changed, 21 insertions(+), 1 deletion(-)
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index f365140..020aad6 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -169,6 +169,8 @@ static void acpi_dsdt_add_pci(Aml *scope, const MemMapEntry
*memmap, int irq)
hwaddr size_pio = memmap[VIRT_PCIE_PIO].size;
hwaddr base_ecam = memmap[VIRT_PCIE_ECAM].base;
hwaddr size_ecam = memmap[VIRT_PCIE_ECAM].size;
+ hwaddr base_mmio_high = memmap[VIRT_PCIE_MMIO_HIGH].base;
+ hwaddr size_mmio_high = memmap[VIRT_PCIE_MMIO_HIGH].size;
int nr_pcie_buses = size_ecam / PCIE_MMCFG_SIZE_MIN;
Aml *dev = aml_device("%s", "PCI0");
@@ -234,6 +236,12 @@ static void acpi_dsdt_add_pci(Aml *scope, const
MemMapEntry *memmap, int irq)
AML_ENTIRE_RANGE, 0x0000, 0x0000, size_pio - 1, base_pio,
size_pio));
+ aml_append(rbuf,
+ aml_dword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED,
+ AML_NON_CACHEABLE, AML_READ_WRITE, 0x0000,
+ base_mmio_high, base_mmio_high + size_mmio_high - 1,
+ 0x0000, size_mmio_high));
+
aml_append(method, aml_name_decl("RBUF", rbuf));
aml_append(method, aml_return(rbuf));
aml_append(dev, method);
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index e53ef4c..c20b3b8 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -124,6 +124,7 @@ static const MemMapEntry a15memmap[] = {
[VIRT_PCIE_PIO] = { 0x3eff0000, 0x00010000 },
[VIRT_PCIE_ECAM] = { 0x3f000000, 0x01000000 },
[VIRT_MEM] = { 0x40000000, 30ULL * 1024 * 1024 * 1024 },
+ [VIRT_PCIE_MMIO_HIGH] = { 0x8000000000, 0x8000000000 },
};
static const int a15irqmap[] = {
@@ -758,6 +759,8 @@ static void create_pcie(const VirtBoardInfo *vbi, qemu_irq
*pic)
hwaddr size_pio = vbi->memmap[VIRT_PCIE_PIO].size;
hwaddr base_ecam = vbi->memmap[VIRT_PCIE_ECAM].base;
hwaddr size_ecam = vbi->memmap[VIRT_PCIE_ECAM].size;
+ hwaddr base_mmio_high = vbi->memmap[VIRT_PCIE_MMIO_HIGH].base;
+ hwaddr size_mmio_high = vbi->memmap[VIRT_PCIE_MMIO_HIGH].size;
hwaddr base = base_mmio;
int nr_pcie_buses = size_ecam / PCIE_MMCFG_SIZE_MIN;
int irq = vbi->irqmap[VIRT_PCIE];
@@ -793,6 +796,12 @@ static void create_pcie(const VirtBoardInfo *vbi, qemu_irq
*pic)
/* Map IO port space */
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, base_pio);
+ /* High MMIO space */
+ mmio_alias = g_new0(MemoryRegion, 1);
+ memory_region_init_alias(mmio_alias, OBJECT(dev), "pcie-mmio-high",
+ mmio_reg, base_mmio_high, size_mmio_high);
+ memory_region_add_subregion(get_system_memory(), base_mmio_high,
mmio_alias);
+
for (i = 0; i < GPEX_NUM_IRQS; i++) {
sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, pic[irq + i]);
}
@@ -818,7 +827,9 @@ static void create_pcie(const VirtBoardInfo *vbi, qemu_irq
*pic)
1, FDT_PCI_RANGE_IOPORT, 2, 0,
2, base_pio, 2, size_pio,
1, FDT_PCI_RANGE_MMIO, 2, base_mmio,
- 2, base_mmio, 2, size_mmio);
+ 2, base_mmio, 2, size_mmio,
+ 1, FDT_PCI_RANGE_MMIO, 2, base_mmio_high,
+ 2, base_mmio_high, 2, size_mmio_high);
qemu_fdt_setprop_cell(vbi->fdt, nodename, "#interrupt-cells", 1);
create_pcie_irq_map(vbi, vbi->gic_phandle, irq, nodename);
diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
index 852efb9..1d43598 100644
--- a/include/hw/arm/virt.h
+++ b/include/hw/arm/virt.h
@@ -60,6 +60,7 @@ enum {
VIRT_PCIE_PIO,
VIRT_PCIE_ECAM,
VIRT_PLATFORM_BUS,
+ VIRT_PCIE_MMIO_HIGH,
};
typedef struct MemMapEntry {
--
1.9.5.msysgit.0
- [Qemu-devel] [PATCH v3] hw/arm/virt: Add high MMIO PCI region,
Pavel Fedin <=
- Re: [Qemu-devel] [PATCH v3] hw/arm/virt: Add high MMIO PCI region, Igor Mammedov, 2015/07/27
- Re: [Qemu-devel] [PATCH v3] hw/arm/virt: Add high MMIO PCI region, Pavel Fedin, 2015/07/29
- Re: [Qemu-devel] [PATCH v3] hw/arm/virt: Add high MMIO PCI region, Peter Maydell, 2015/07/29
- Re: [Qemu-devel] [PATCH v3] hw/arm/virt: Add high MMIO PCI region, Pavel Fedin, 2015/07/29
- Re: [Qemu-devel] [PATCH v3] hw/arm/virt: Add high MMIO PCI region, Peter Maydell, 2015/07/29
- Re: [Qemu-devel] [PATCH v3] hw/arm/virt: Add high MMIO PCI region, Pavel Fedin, 2015/07/29
- Re: [Qemu-devel] [PATCH v3] hw/arm/virt: Add high MMIO PCI region, Peter Maydell, 2015/07/29