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hw/arm/virt: Add a control for the the highmem PCIe MMIO 

Just like we can control the enablement of the highmem PCIe ECAM
region using highmem_ecam, let's add a control for the highmem
PCIe MMIO  region.

Similarily to highmem_ecam, this region is disabled when highmem
is off.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20220114140741.1358263-2-maz@kernel.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Marc Zyngier 2022-01-14 14:07:36 +00:00 committed by Peter Maydell
parent 5e66daec9e
commit c8f008c40f
3 changed files with 10 additions and 8 deletions
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10
hw/arm/virt-acpi-build.c
View File

@ -158,10 +158,9 @@ static void acpi_dsdt_add_virtio(Aml *scope,
}
static void acpi_dsdt_add_pci(Aml *scope, const MemMapEntry *memmap,
uint32_t irq, bool use_highmem, bool highmem_ecam,
VirtMachineState *vms)
uint32_t irq, VirtMachineState *vms)
{
int ecam_id = VIRT_ECAM_ID(highmem_ecam);
int ecam_id = VIRT_ECAM_ID(vms->highmem_ecam);
struct GPEXConfig cfg = {
.mmio32 = memmap[VIRT_PCIE_MMIO],
.pio = memmap[VIRT_PCIE_PIO],
@ -170,7 +169,7 @@ static void acpi_dsdt_add_pci(Aml *scope, const MemMapEntry *memmap,
.bus = vms->bus,
};
if (use_highmem) {
if (vms->highmem_mmio) {
cfg.mmio64 = memmap[VIRT_HIGH_PCIE_MMIO];
}
@ -869,8 +868,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
acpi_dsdt_add_fw_cfg(scope, &memmap[VIRT_FW_CFG]);
acpi_dsdt_add_virtio(scope, &memmap[VIRT_MMIO],
(irqmap[VIRT_MMIO] + ARM_SPI_BASE), NUM_VIRTIO_TRANSPORTS);
acpi_dsdt_add_pci(scope, memmap, (irqmap[VIRT_PCIE] + ARM_SPI_BASE),
vms->highmem, vms->highmem_ecam, vms);
acpi_dsdt_add_pci(scope, memmap, irqmap[VIRT_PCIE] + ARM_SPI_BASE, vms);
if (vms->acpi_dev) {
build_ged_aml(scope, "\\_SB."GED_DEVICE,
HOTPLUG_HANDLER(vms->acpi_dev),

7
hw/arm/virt.c
View File

@ -1419,7 +1419,7 @@ static void create_pcie(VirtMachineState *vms)
mmio_reg, base_mmio, size_mmio);
memory_region_add_subregion(get_system_memory(), base_mmio, mmio_alias);
if (vms->highmem) {
if (vms->highmem_mmio) {
/* Map high MMIO space */
MemoryRegion *high_mmio_alias = g_new0(MemoryRegion, 1);
@ -1473,7 +1473,7 @@ static void create_pcie(VirtMachineState *vms)
qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, base_ecam, 2, size_ecam);
if (vms->highmem) {
if (vms->highmem_mmio) {
qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "ranges",
1, FDT_PCI_RANGE_IOPORT, 2, 0,
2, base_pio, 2, size_pio,
@ -2112,6 +2112,8 @@ static void machvirt_init(MachineState *machine)
virt_flash_fdt(vms, sysmem, secure_sysmem ?: sysmem);
vms->highmem_mmio &= vms->highmem;
create_gic(vms, sysmem);
virt_cpu_post_init(vms, sysmem);
@ -2899,6 +2901,7 @@ static void virt_instance_init(Object *obj)
vms->gic_version = VIRT_GIC_VERSION_NOSEL;
vms->highmem_ecam = !vmc->no_highmem_ecam;
vms->highmem_mmio = true;
if (vmc->no_its) {
vms->its = false;

1
include/hw/arm/virt.h
View File

@ -143,6 +143,7 @@ struct VirtMachineState {
bool secure;
bool highmem;
bool highmem_ecam;
bool highmem_mmio;
bool its;
bool tcg_its;
bool virt;