17ec075a65
With this patch, virt-3.0 machine uses a new 256MB ECAM region by default instead of the legacy 16MB one, if highmem is set (LPAE supported by the guest) and (!firmware_loaded || aarch64). Indeed aarch32 mode FW may not support this high ECAM region. Signed-off-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Message-id: 1529072910-16156-11-git-send-email-eric.auger@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
153 lines
4.1 KiB
C
153 lines
4.1 KiB
C
/*
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*
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* Copyright (c) 2015 Linaro Limited
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2 or later, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Emulate a virtual board which works by passing Linux all the information
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* it needs about what devices are present via the device tree.
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* There are some restrictions about what we can do here:
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* + we can only present devices whose Linux drivers will work based
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* purely on the device tree with no platform data at all
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* + we want to present a very stripped-down minimalist platform,
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* both because this reduces the security attack surface from the guest
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* and also because it reduces our exposure to being broken when
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* the kernel updates its device tree bindings and requires further
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* information in a device binding that we aren't providing.
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* This is essentially the same approach kvmtool uses.
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*/
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#ifndef QEMU_ARM_VIRT_H
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#define QEMU_ARM_VIRT_H
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#include "qemu-common.h"
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#include "exec/hwaddr.h"
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#include "qemu/notify.h"
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#include "hw/boards.h"
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#include "hw/arm/arm.h"
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#include "sysemu/kvm.h"
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#include "hw/intc/arm_gicv3_common.h"
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#define NUM_GICV2M_SPIS 64
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#define NUM_VIRTIO_TRANSPORTS 32
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#define NUM_SMMU_IRQS 4
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#define ARCH_GICV3_MAINT_IRQ 9
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#define ARCH_TIMER_VIRT_IRQ 11
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#define ARCH_TIMER_S_EL1_IRQ 13
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#define ARCH_TIMER_NS_EL1_IRQ 14
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#define ARCH_TIMER_NS_EL2_IRQ 10
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#define VIRTUAL_PMU_IRQ 7
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#define PPI(irq) ((irq) + 16)
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enum {
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VIRT_FLASH,
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VIRT_MEM,
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VIRT_CPUPERIPHS,
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VIRT_GIC_DIST,
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VIRT_GIC_CPU,
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VIRT_GIC_V2M,
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VIRT_GIC_ITS,
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VIRT_GIC_REDIST,
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VIRT_GIC_REDIST2,
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VIRT_SMMU,
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VIRT_UART,
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VIRT_MMIO,
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VIRT_RTC,
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VIRT_FW_CFG,
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VIRT_PCIE,
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VIRT_PCIE_MMIO,
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VIRT_PCIE_PIO,
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VIRT_PCIE_ECAM,
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VIRT_PCIE_ECAM_HIGH,
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VIRT_PLATFORM_BUS,
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VIRT_PCIE_MMIO_HIGH,
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VIRT_GPIO,
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VIRT_SECURE_UART,
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VIRT_SECURE_MEM,
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};
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typedef enum VirtIOMMUType {
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VIRT_IOMMU_NONE,
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VIRT_IOMMU_SMMUV3,
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VIRT_IOMMU_VIRTIO,
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} VirtIOMMUType;
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typedef struct MemMapEntry {
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hwaddr base;
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hwaddr size;
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} MemMapEntry;
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typedef struct {
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MachineClass parent;
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bool disallow_affinity_adjustment;
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bool no_its;
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bool no_pmu;
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bool claim_edge_triggered_timers;
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bool smbios_old_sys_ver;
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bool no_highmem_ecam;
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} VirtMachineClass;
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typedef struct {
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MachineState parent;
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Notifier machine_done;
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DeviceState *platform_bus_dev;
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FWCfgState *fw_cfg;
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bool secure;
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bool highmem;
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bool highmem_ecam;
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bool its;
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bool virt;
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int32_t gic_version;
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VirtIOMMUType iommu;
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struct arm_boot_info bootinfo;
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const MemMapEntry *memmap;
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const int *irqmap;
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int smp_cpus;
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void *fdt;
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int fdt_size;
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uint32_t clock_phandle;
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uint32_t gic_phandle;
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uint32_t msi_phandle;
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uint32_t iommu_phandle;
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int psci_conduit;
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} VirtMachineState;
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#define VIRT_ECAM_ID(high) (high ? VIRT_PCIE_ECAM_HIGH : VIRT_PCIE_ECAM)
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#define TYPE_VIRT_MACHINE MACHINE_TYPE_NAME("virt")
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#define VIRT_MACHINE(obj) \
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OBJECT_CHECK(VirtMachineState, (obj), TYPE_VIRT_MACHINE)
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#define VIRT_MACHINE_GET_CLASS(obj) \
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OBJECT_GET_CLASS(VirtMachineClass, obj, TYPE_VIRT_MACHINE)
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#define VIRT_MACHINE_CLASS(klass) \
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OBJECT_CLASS_CHECK(VirtMachineClass, klass, TYPE_VIRT_MACHINE)
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void virt_acpi_setup(VirtMachineState *vms);
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/* Return the number of used redistributor regions */
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static inline int virt_gicv3_redist_region_count(VirtMachineState *vms)
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{
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uint32_t redist0_capacity =
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vms->memmap[VIRT_GIC_REDIST].size / GICV3_REDIST_SIZE;
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assert(vms->gic_version == 3);
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return vms->smp_cpus > redist0_capacity ? 2 : 1;
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}
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#endif /* QEMU_ARM_VIRT_H */
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