hw/arm: xenpvh: Rename xen_arm.c -> xen-pvh.c

Rename xen_arm.c -> xen-pvh.c to better express that this
is a PVH machine and to align with x86 HVM and future PVH
machine filenames:
hw/i386/xen/xen-hvm.c
hw/i386/xen/xen-pvh.c (in preparation)

No functional changes.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>

1 files changed, 89 insertions, 0 deletions

diff --git a/hw/arm/xen-pvh.c b/hw/arm/xen-pvh.c
new file mode 100644
index 0000000000..04cb9855af
--- /dev/null
+++ b/hw/arm/xen-pvh.c
@@ -0,0 +1,89 @@
+/*
+ * 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 "sysemu/sysemu.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_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;
+
+    /* List of supported features known to work on PVH ARM.  */
+    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)