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/*
* QEMU ARM Xen PVH Machine
*
* SPDX-License-Identifier: MIT
*/
#include "qemu/osdep.h"
#include "qemu/error-report.h"
#include "qapi/qapi-commands-migration.h"
#include "hw/boards.h"
#include "system/system.h"
#include "hw/xen/xen-pvh-common.h"
#include "hw/xen/arch_hvm.h"
#define TYPE_XEN_ARM MACHINE_TYPE_NAME("xenpvh")
/*
* VIRTIO_MMIO_DEV_SIZE is imported from tools/libs/light/libxl_arm.c under Xen
* repository.
*
* Origin: git://xenbits.xen.org/xen.git 2128143c114c
*/
#define VIRTIO_MMIO_DEV_SIZE 0x200
#define NR_VIRTIO_MMIO_DEVICES \
(GUEST_VIRTIO_MMIO_SPI_LAST - GUEST_VIRTIO_MMIO_SPI_FIRST)
static void xen_arm_instance_init(Object *obj)
{
XenPVHMachineState *s = XEN_PVH_MACHINE(obj);
/* Default values. */
s->cfg.ram_low = (MemMapEntry) { GUEST_RAM0_BASE, GUEST_RAM0_SIZE };
s->cfg.ram_high = (MemMapEntry) { GUEST_RAM1_BASE, GUEST_RAM1_SIZE };
s->cfg.virtio_mmio_num = NR_VIRTIO_MMIO_DEVICES;
s->cfg.virtio_mmio_irq_base = GUEST_VIRTIO_MMIO_SPI_FIRST;
s->cfg.virtio_mmio = (MemMapEntry) { GUEST_VIRTIO_MMIO_BASE,
VIRTIO_MMIO_DEV_SIZE };
}
static void xen_pvh_set_pci_intx_irq(void *opaque, int intx_irq, int level)
{
XenPVHMachineState *s = XEN_PVH_MACHINE(opaque);
int irq = s->cfg.pci_intx_irq_base + intx_irq;
if (xendevicemodel_set_irq_level(xen_dmod, xen_domid, irq, level)) {
error_report("xendevicemodel_set_pci_intx_level failed");
}
}
static void xen_arm_machine_class_init(ObjectClass *oc, void *data)
{
XenPVHMachineClass *xpc = XEN_PVH_MACHINE_CLASS(oc);
MachineClass *mc = MACHINE_CLASS(oc);
mc->desc = "Xen PVH ARM machine";
/*
* mc->max_cpus holds the MAX value allowed in the -smp command-line opts.
*
* 1. If users don't pass any -smp option:
* ms->smp.cpus will default to 1.
* ms->smp.max_cpus will default to 1.
*
* 2. If users pass -smp X:
* ms->smp.cpus will be set to X.
* ms->smp.max_cpus will also be set to X.
*
* 3. If users pass -smp X,maxcpus=Y:
* ms->smp.cpus will be set to X.
* ms->smp.max_cpus will be set to Y.
*
* In scenarios 2 and 3, if X or Y are set to something larger than
* mc->max_cpus, QEMU will bail out with an error message.
*/
mc->max_cpus = GUEST_MAX_VCPUS;
/* Xen/ARM does not use buffered IOREQs. */
xpc->handle_bufioreq = HVM_IOREQSRV_BUFIOREQ_OFF;
/* PCI INTX delivery. */
xpc->set_pci_intx_irq = xen_pvh_set_pci_intx_irq;
/* List of supported features known to work on PVH ARM. */
xpc->has_pci = true;
xpc->has_tpm = true;
xpc->has_virtio_mmio = true;
xen_pvh_class_setup_common_props(xpc);
}
static const TypeInfo xen_arm_machine_type = {
.name = TYPE_XEN_ARM,
.parent = TYPE_XEN_PVH_MACHINE,
.class_init = xen_arm_machine_class_init,
.instance_size = sizeof(XenPVHMachineState),
.instance_init = xen_arm_instance_init,
};
static void xen_arm_machine_register_types(void)
{
type_register_static(&xen_arm_machine_type);
}
type_init(xen_arm_machine_register_types)
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