Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* bugfixes
* show machine ACPI support in QAPI
* Core Xen emulation support for KVM/x86

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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (62 commits)
  Makefile: qemu-bundle is a directory
  qapi: Add 'acpi' field to 'query-machines' output
  hw/xen: Subsume xen_be_register_common() into xen_be_init()
  i386/xen: Document Xen HVM emulation
  kvm/i386: Add xen-evtchn-max-pirq property
  hw/xen: Support MSI mapping to PIRQ
  hw/xen: Support GSI mapping to PIRQ
  hw/xen: Implement emulated PIRQ hypercall support
  i386/xen: Implement HYPERVISOR_physdev_op
  hw/xen: Automatically add xen-platform PCI device for emulated Xen guests
  hw/xen: Add basic ring handling to xenstore
  hw/xen: Add xen_xenstore device for xenstore emulation
  hw/xen: Add backend implementation of interdomain event channel support
  i386/xen: handle HVMOP_get_param
  i386/xen: Reserve Xen special pages for console, xenstore rings
  i386/xen: handle PV timer hypercalls
  hw/xen: Implement GNTTABOP_query_size
  i386/xen: Implement HYPERVISOR_grant_table_op and GNTTABOP_[gs]et_verson
  hw/xen: Support mapping grant frames
  hw/xen: Add xen_gnttab device for grant table emulation
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 43 insertions, 0 deletions

diff --git a/include/sysemu/kvm_xen.h b/include/sysemu/kvm_xen.h
new file mode 100644
index 0000000000..595abfbe40
--- /dev/null
+++ b/include/sysemu/kvm_xen.h
@@ -0,0 +1,43 @@
+/*
+ * Xen HVM emulation support in KVM
+ *
+ * Copyright © 2019 Oracle and/or its affiliates. All rights reserved.
+ * Copyright © 2022 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef QEMU_SYSEMU_KVM_XEN_H
+#define QEMU_SYSEMU_KVM_XEN_H
+
+/* The KVM API uses these to indicate "no GPA" or "no GFN" */
+#define INVALID_GPA UINT64_MAX
+#define INVALID_GFN UINT64_MAX
+
+/* QEMU plays the rôle of dom0 for "interdomain" communication. */
+#define DOMID_QEMU  0
+
+int kvm_xen_soft_reset(void);
+uint32_t kvm_xen_get_caps(void);
+void *kvm_xen_get_vcpu_info_hva(uint32_t vcpu_id);
+void kvm_xen_inject_vcpu_callback_vector(uint32_t vcpu_id, int type);
+void kvm_xen_set_callback_asserted(void);
+int kvm_xen_set_vcpu_virq(uint32_t vcpu_id, uint16_t virq, uint16_t port);
+uint16_t kvm_xen_get_gnttab_max_frames(void);
+uint16_t kvm_xen_get_evtchn_max_pirq(void);
+
+#define kvm_xen_has_cap(cap) (!!(kvm_xen_get_caps() &           \
+                                 KVM_XEN_HVM_CONFIG_ ## cap))
+
+#define XEN_SPECIAL_AREA_ADDR 0xfeff8000UL
+#define XEN_SPECIAL_AREA_SIZE 0x4000UL
+
+#define XEN_SPECIALPAGE_CONSOLE     0
+#define XEN_SPECIALPAGE_XENSTORE    1
+
+#define XEN_SPECIAL_PFN(x) ((XEN_SPECIAL_AREA_ADDR >> TARGET_PAGE_BITS) + \
+                            XEN_SPECIALPAGE_##x)
+
+#endif /* QEMU_SYSEMU_KVM_XEN_H */