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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# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
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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, 383 insertions, 0 deletions

diff --git a/include/hw/xen/interface/physdev.h b/include/hw/xen/interface/physdev.h
new file mode 100644
index 0000000000..d271766ad0
--- /dev/null
+++ b/include/hw/xen/interface/physdev.h
@@ -0,0 +1,383 @@
+/*
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Copyright (c) 2006, Keir Fraser
+ */
+
+#ifndef __XEN_PUBLIC_PHYSDEV_H__
+#define __XEN_PUBLIC_PHYSDEV_H__
+
+#include "xen.h"
+
+/*
+ * Prototype for this hypercall is:
+ *  int physdev_op(int cmd, void *args)
+ * @cmd  == PHYSDEVOP_??? (physdev operation).
+ * @args == Operation-specific extra arguments (NULL if none).
+ */
+
+/*
+ * Notify end-of-interrupt (EOI) for the specified IRQ.
+ * @arg == pointer to physdev_eoi structure.
+ */
+#define PHYSDEVOP_eoi                   12
+struct physdev_eoi {
+    /* IN */
+    uint32_t irq;
+};
+typedef struct physdev_eoi physdev_eoi_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_eoi_t);
+
+/*
+ * Register a shared page for the hypervisor to indicate whether the guest
+ * must issue PHYSDEVOP_eoi. The semantics of PHYSDEVOP_eoi change slightly
+ * once the guest used this function in that the associated event channel
+ * will automatically get unmasked. The page registered is used as a bit
+ * array indexed by Xen's PIRQ value.
+ */
+#define PHYSDEVOP_pirq_eoi_gmfn_v1       17
+/*
+ * Register a shared page for the hypervisor to indicate whether the
+ * guest must issue PHYSDEVOP_eoi. This hypercall is very similar to
+ * PHYSDEVOP_pirq_eoi_gmfn_v1 but it doesn't change the semantics of
+ * PHYSDEVOP_eoi. The page registered is used as a bit array indexed by
+ * Xen's PIRQ value.
+ */
+#define PHYSDEVOP_pirq_eoi_gmfn_v2       28
+struct physdev_pirq_eoi_gmfn {
+    /* IN */
+    xen_pfn_t gmfn;
+};
+typedef struct physdev_pirq_eoi_gmfn physdev_pirq_eoi_gmfn_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_pirq_eoi_gmfn_t);
+
+/*
+ * Query the status of an IRQ line.
+ * @arg == pointer to physdev_irq_status_query structure.
+ */
+#define PHYSDEVOP_irq_status_query       5
+struct physdev_irq_status_query {
+    /* IN */
+    uint32_t irq;
+    /* OUT */
+    uint32_t flags; /* XENIRQSTAT_* */
+};
+typedef struct physdev_irq_status_query physdev_irq_status_query_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_irq_status_query_t);
+
+/* Need to call PHYSDEVOP_eoi when the IRQ has been serviced? */
+#define _XENIRQSTAT_needs_eoi   (0)
+#define  XENIRQSTAT_needs_eoi   (1U<<_XENIRQSTAT_needs_eoi)
+
+/* IRQ shared by multiple guests? */
+#define _XENIRQSTAT_shared      (1)
+#define  XENIRQSTAT_shared      (1U<<_XENIRQSTAT_shared)
+
+/*
+ * Set the current VCPU's I/O privilege level.
+ * @arg == pointer to physdev_set_iopl structure.
+ */
+#define PHYSDEVOP_set_iopl               6
+struct physdev_set_iopl {
+    /* IN */
+    uint32_t iopl;
+};
+typedef struct physdev_set_iopl physdev_set_iopl_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_set_iopl_t);
+
+/*
+ * Set the current VCPU's I/O-port permissions bitmap.
+ * @arg == pointer to physdev_set_iobitmap structure.
+ */
+#define PHYSDEVOP_set_iobitmap           7
+struct physdev_set_iobitmap {
+    /* IN */
+#if __XEN_INTERFACE_VERSION__ >= 0x00030205
+    XEN_GUEST_HANDLE(uint8) bitmap;
+#else
+    uint8_t *bitmap;
+#endif
+    uint32_t nr_ports;
+};
+typedef struct physdev_set_iobitmap physdev_set_iobitmap_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_set_iobitmap_t);
+
+/*
+ * Read or write an IO-APIC register.
+ * @arg == pointer to physdev_apic structure.
+ */
+#define PHYSDEVOP_apic_read              8
+#define PHYSDEVOP_apic_write             9
+struct physdev_apic {
+    /* IN */
+    unsigned long apic_physbase;
+    uint32_t reg;
+    /* IN or OUT */
+    uint32_t value;
+};
+typedef struct physdev_apic physdev_apic_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_apic_t);
+
+/*
+ * Allocate or free a physical upcall vector for the specified IRQ line.
+ * @arg == pointer to physdev_irq structure.
+ */
+#define PHYSDEVOP_alloc_irq_vector      10
+#define PHYSDEVOP_free_irq_vector       11
+struct physdev_irq {
+    /* IN */
+    uint32_t irq;
+    /* IN or OUT */
+    uint32_t vector;
+};
+typedef struct physdev_irq physdev_irq_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_irq_t);
+
+#define MAP_PIRQ_TYPE_MSI               0x0
+#define MAP_PIRQ_TYPE_GSI               0x1
+#define MAP_PIRQ_TYPE_UNKNOWN           0x2
+#define MAP_PIRQ_TYPE_MSI_SEG           0x3
+#define MAP_PIRQ_TYPE_MULTI_MSI         0x4
+
+#define PHYSDEVOP_map_pirq               13
+struct physdev_map_pirq {
+    domid_t domid;
+    /* IN */
+    int type;
+    /* IN (ignored for ..._MULTI_MSI) */
+    int index;
+    /* IN or OUT */
+    int pirq;
+    /* IN - high 16 bits hold segment for ..._MSI_SEG and ..._MULTI_MSI */
+    int bus;
+    /* IN */
+    int devfn;
+    /* IN (also OUT for ..._MULTI_MSI) */
+    int entry_nr;
+    /* IN */
+    uint64_t table_base;
+};
+typedef struct physdev_map_pirq physdev_map_pirq_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_map_pirq_t);
+
+#define PHYSDEVOP_unmap_pirq             14
+struct physdev_unmap_pirq {
+    domid_t domid;
+    /* IN */
+    int pirq;
+};
+
+typedef struct physdev_unmap_pirq physdev_unmap_pirq_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_unmap_pirq_t);
+
+#define PHYSDEVOP_manage_pci_add         15
+#define PHYSDEVOP_manage_pci_remove      16
+struct physdev_manage_pci {
+    /* IN */
+    uint8_t bus;
+    uint8_t devfn;
+};
+
+typedef struct physdev_manage_pci physdev_manage_pci_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_manage_pci_t);
+
+#define PHYSDEVOP_restore_msi            19
+struct physdev_restore_msi {
+    /* IN */
+    uint8_t bus;
+    uint8_t devfn;
+};
+typedef struct physdev_restore_msi physdev_restore_msi_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_restore_msi_t);
+
+#define PHYSDEVOP_manage_pci_add_ext     20
+struct physdev_manage_pci_ext {
+    /* IN */
+    uint8_t bus;
+    uint8_t devfn;
+    unsigned is_extfn;
+    unsigned is_virtfn;
+    struct {
+        uint8_t bus;
+        uint8_t devfn;
+    } physfn;
+};
+
+typedef struct physdev_manage_pci_ext physdev_manage_pci_ext_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_manage_pci_ext_t);
+
+/*
+ * Argument to physdev_op_compat() hypercall. Superceded by new physdev_op()
+ * hypercall since 0x00030202.
+ */
+struct physdev_op {
+    uint32_t cmd;
+    union {
+        physdev_irq_status_query_t irq_status_query;
+        physdev_set_iopl_t         set_iopl;
+        physdev_set_iobitmap_t     set_iobitmap;
+        physdev_apic_t             apic_op;
+        physdev_irq_t              irq_op;
+    } u;
+};
+typedef struct physdev_op physdev_op_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_op_t);
+
+#define PHYSDEVOP_setup_gsi    21
+struct physdev_setup_gsi {
+    int gsi;
+    /* IN */
+    uint8_t triggering;
+    /* IN */
+    uint8_t polarity;
+    /* IN */
+};
+
+typedef struct physdev_setup_gsi physdev_setup_gsi_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_setup_gsi_t);
+
+/* leave PHYSDEVOP 22 free */
+
+/* type is MAP_PIRQ_TYPE_GSI or MAP_PIRQ_TYPE_MSI
+ * the hypercall returns a free pirq */
+#define PHYSDEVOP_get_free_pirq    23
+struct physdev_get_free_pirq {
+    /* IN */
+    int type;
+    /* OUT */
+    uint32_t pirq;
+};
+
+typedef struct physdev_get_free_pirq physdev_get_free_pirq_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_get_free_pirq_t);
+
+#define XEN_PCI_MMCFG_RESERVED         0x1
+
+#define PHYSDEVOP_pci_mmcfg_reserved    24
+struct physdev_pci_mmcfg_reserved {
+    uint64_t address;
+    uint16_t segment;
+    uint8_t start_bus;
+    uint8_t end_bus;
+    uint32_t flags;
+};
+typedef struct physdev_pci_mmcfg_reserved physdev_pci_mmcfg_reserved_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_pci_mmcfg_reserved_t);
+
+#define XEN_PCI_DEV_EXTFN              0x1
+#define XEN_PCI_DEV_VIRTFN             0x2
+#define XEN_PCI_DEV_PXM                0x4
+
+#define PHYSDEVOP_pci_device_add        25
+struct physdev_pci_device_add {
+    /* IN */
+    uint16_t seg;
+    uint8_t bus;
+    uint8_t devfn;
+    uint32_t flags;
+    struct {
+        uint8_t bus;
+        uint8_t devfn;
+    } physfn;
+    /*
+     * Optional parameters array.
+     * First element ([0]) is PXM domain associated with the device (if
+     * XEN_PCI_DEV_PXM is set)
+     */
+    uint32_t optarr[XEN_FLEX_ARRAY_DIM];
+};
+typedef struct physdev_pci_device_add physdev_pci_device_add_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_pci_device_add_t);
+
+#define PHYSDEVOP_pci_device_remove     26
+#define PHYSDEVOP_restore_msi_ext       27
+/*
+ * Dom0 should use these two to announce MMIO resources assigned to
+ * MSI-X capable devices won't (prepare) or may (release) change.
+ */
+#define PHYSDEVOP_prepare_msix          30
+#define PHYSDEVOP_release_msix          31
+struct physdev_pci_device {
+    /* IN */
+    uint16_t seg;
+    uint8_t bus;
+    uint8_t devfn;
+};
+typedef struct physdev_pci_device physdev_pci_device_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_pci_device_t);
+
+#define PHYSDEVOP_DBGP_RESET_PREPARE    1
+#define PHYSDEVOP_DBGP_RESET_DONE       2
+
+#define PHYSDEVOP_DBGP_BUS_UNKNOWN      0
+#define PHYSDEVOP_DBGP_BUS_PCI          1
+
+#define PHYSDEVOP_dbgp_op               29
+struct physdev_dbgp_op {
+    /* IN */
+    uint8_t op;
+    uint8_t bus;
+    union {
+        physdev_pci_device_t pci;
+    } u;
+};
+typedef struct physdev_dbgp_op physdev_dbgp_op_t;
+DEFINE_XEN_GUEST_HANDLE(physdev_dbgp_op_t);
+
+/*
+ * Notify that some PIRQ-bound event channels have been unmasked.
+ * ** This command is obsolete since interface version 0x00030202 and is **
+ * ** unsupported by newer versions of Xen.                              **
+ */
+#define PHYSDEVOP_IRQ_UNMASK_NOTIFY      4
+
+#if __XEN_INTERFACE_VERSION__ < 0x00040600
+/*
+ * These all-capitals physdev operation names are superceded by the new names
+ * (defined above) since interface version 0x00030202. The guard above was
+ * added post-4.5 only though and hence shouldn't check for 0x00030202.
+ */
+#define PHYSDEVOP_IRQ_STATUS_QUERY       PHYSDEVOP_irq_status_query
+#define PHYSDEVOP_SET_IOPL               PHYSDEVOP_set_iopl
+#define PHYSDEVOP_SET_IOBITMAP           PHYSDEVOP_set_iobitmap
+#define PHYSDEVOP_APIC_READ              PHYSDEVOP_apic_read
+#define PHYSDEVOP_APIC_WRITE             PHYSDEVOP_apic_write
+#define PHYSDEVOP_ASSIGN_VECTOR          PHYSDEVOP_alloc_irq_vector
+#define PHYSDEVOP_FREE_VECTOR            PHYSDEVOP_free_irq_vector
+#define PHYSDEVOP_IRQ_NEEDS_UNMASK_NOTIFY XENIRQSTAT_needs_eoi
+#define PHYSDEVOP_IRQ_SHARED             XENIRQSTAT_shared
+#endif
+
+#if __XEN_INTERFACE_VERSION__ < 0x00040200
+#define PHYSDEVOP_pirq_eoi_gmfn PHYSDEVOP_pirq_eoi_gmfn_v1
+#else
+#define PHYSDEVOP_pirq_eoi_gmfn PHYSDEVOP_pirq_eoi_gmfn_v2
+#endif
+
+#endif /* __XEN_PUBLIC_PHYSDEV_H__ */
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */