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authorKees Cook <kees+treewide@kernel.org>2026-09-02 15:31:14 -0700
committerKees Cook <kees@kernel.org>2026-09-04 21:37:00 -0700
commit3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch)
treec65086f9bdcd48c6360fb7cb4598bca084da1f32 /include/xen/interface/physdev.h
downloadlinux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz
linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip
treewide: refresh kmalloc_obj() conversionsgrafted
This is another run of the Coccinelle script for converting kmalloc() family of allocations to kmalloc_obj() via the existing rules in scripts/coccinelle/api/kmalloc_objs.cocci This catches both the set of kmalloc() uses added since the first kmalloc_obj() conversions in v7.0 and adds a large group missed in the first pass due to Coccinelle not interacting well with the cleanup.h scoped_...() family of macros[1]. I worked around this with spatch's "--macro-file" argument to a file with all the scoped_...() macros mapped to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control flow indicator I could find. Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc, riscv, and s390 with no new warnings. Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1] Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2] Signed-off-by: Kees Cook <kees+treewide@kernel.org>
Diffstat (limited to 'include/xen/interface/physdev.h')
-rw-r--r--include/xen/interface/physdev.h320
1 files changed, 320 insertions, 0 deletions
diff --git a/include/xen/interface/physdev.h b/include/xen/interface/physdev.h
new file mode 100644
index 000000000..df74e65a8
--- /dev/null
+++ b/include/xen/interface/physdev.h
@@ -0,0 +1,320 @@
+/* SPDX-License-Identifier: MIT */
+
+#ifndef __XEN_PUBLIC_PHYSDEV_H__
+#define __XEN_PUBLIC_PHYSDEV_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;
+};
+
+/*
+ * 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_ulong_t gmfn;
+};
+
+/*
+ * 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_* */
+};
+
+/* 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;
+};
+
+/*
+ * 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 */
+ uint8_t * bitmap;
+ uint32_t nr_ports;
+};
+
+/*
+ * 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;
+};
+
+/*
+ * 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;
+};
+
+#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 */
+ 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
+ * - For MSI-X contains entry number.
+ * - For MSI with ..._MULTI_MSI contains number of vectors.
+ * OUT (..._MULTI_MSI only)
+ * - Number of vectors allocated.
+ */
+ int entry_nr;
+ /* IN */
+ uint64_t table_base;
+};
+
+#define PHYSDEVOP_unmap_pirq 14
+struct physdev_unmap_pirq {
+ domid_t domid;
+ /* IN */
+ int pirq;
+};
+
+#define PHYSDEVOP_manage_pci_add 15
+#define PHYSDEVOP_manage_pci_remove 16
+struct physdev_manage_pci {
+ /* IN */
+ uint8_t bus;
+ uint8_t devfn;
+};
+
+#define PHYSDEVOP_restore_msi 19
+struct physdev_restore_msi {
+ /* IN */
+ uint8_t bus;
+ uint8_t devfn;
+};
+
+#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;
+};
+
+/*
+ * Argument to physdev_op_compat() hypercall. Superceded by new physdev_op()
+ * hypercall since 0x00030202.
+ */
+struct physdev_op {
+ uint32_t cmd;
+ union {
+ struct physdev_irq_status_query irq_status_query;
+ struct physdev_set_iopl set_iopl;
+ struct physdev_set_iobitmap set_iobitmap;
+ struct physdev_apic apic_op;
+ struct physdev_irq irq_op;
+ } u;
+};
+
+#define PHYSDEVOP_setup_gsi 21
+struct physdev_setup_gsi {
+ int gsi;
+ /* IN */
+ uint8_t triggering;
+ /* IN */
+ uint8_t polarity;
+ /* IN */
+};
+
+#define PHYSDEVOP_get_nr_pirqs 22
+struct physdev_nr_pirqs {
+ /* OUT */
+ uint32_t nr_pirqs;
+};
+
+/* 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;
+};
+
+#define XEN_PCI_DEV_EXTFN 0x1
+#define XEN_PCI_DEV_VIRTFN 0x2
+#define XEN_PCI_DEV_PXM 0x4
+
+#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;
+};
+
+#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;
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+ uint32_t optarr[];
+#elif defined(__GNUC__)
+ uint32_t optarr[0];
+#endif
+};
+
+#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
+/*
+ * Notify the hypervisor that a PCI device has been reset, so that any
+ * internally cached state is regenerated. Should be called after any
+ * device reset performed by the hardware domain.
+ */
+#define PHYSDEVOP_pci_device_reset 32
+
+struct physdev_pci_device {
+ /* IN */
+ uint16_t seg;
+ uint8_t bus;
+ uint8_t devfn;
+};
+
+struct pci_device_reset {
+ struct physdev_pci_device dev;
+#define PCI_DEVICE_RESET_COLD 0x0
+#define PCI_DEVICE_RESET_WARM 0x1
+#define PCI_DEVICE_RESET_HOT 0x2
+#define PCI_DEVICE_RESET_FLR 0x3
+#define PCI_DEVICE_RESET_MASK 0x3
+ uint32_t flags;
+};
+
+#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 {
+ struct physdev_pci_device pci;
+ } u;
+};
+
+/*
+ * 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
+
+/*
+ * These all-capitals physdev operation names are superceded by the new names
+ * (defined above) since interface version 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 /* __XEN_PUBLIC_PHYSDEV_H__ */