diff options
Diffstat (limited to 'include/hw/xen/xen_native.h')
| -rw-r--r-- | include/hw/xen/xen_native.h | 629 |
1 files changed, 629 insertions, 0 deletions
diff --git a/include/hw/xen/xen_native.h b/include/hw/xen/xen_native.h new file mode 100644 index 0000000000..6bcc83baf9 --- /dev/null +++ b/include/hw/xen/xen_native.h @@ -0,0 +1,629 @@ +#ifndef QEMU_HW_XEN_NATIVE_H +#define QEMU_HW_XEN_NATIVE_H + +#ifdef __XEN_INTERFACE_VERSION__ +#error In Xen native files, include xen_native.h before other Xen headers +#endif + +/* + * If we have new enough libxenctrl then we do not want/need these compat + * interfaces, despite what the user supplied cflags might say. They + * must be undefined before including xenctrl.h + */ +#undef XC_WANT_COMPAT_EVTCHN_API +#undef XC_WANT_COMPAT_GNTTAB_API +#undef XC_WANT_COMPAT_MAP_FOREIGN_API + +#include <xenctrl.h> +#include <xenstore.h> + +#include "hw/xen/xen.h" +#include "hw/pci/pci_device.h" +#include "hw/xen/trace.h" + +extern xc_interface *xen_xc; + +/* + * We don't support Xen prior to 4.2.0. + */ + +/* Xen 4.2 through 4.6 */ +#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 40701 + +typedef xc_interface xenforeignmemory_handle; + +#define xenforeignmemory_open(l, f) xen_xc +#define xenforeignmemory_close(h) + +#else /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 40701 */ + +#include <xenforeignmemory.h> + +#endif + +extern xenforeignmemory_handle *xen_fmem; + +#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 40900 + +typedef xc_interface xendevicemodel_handle; + +#else /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 40900 */ + +#undef XC_WANT_COMPAT_DEVICEMODEL_API +#include <xendevicemodel.h> + +#endif + +#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 41100 + +static inline int xendevicemodel_relocate_memory( + xendevicemodel_handle *dmod, domid_t domid, uint32_t size, uint64_t src_gfn, + uint64_t dst_gfn) +{ + uint32_t i; + int rc; + + for (i = 0; i < size; i++) { + unsigned long idx = src_gfn + i; + xen_pfn_t gpfn = dst_gfn + i; + + rc = xc_domain_add_to_physmap(xen_xc, domid, XENMAPSPACE_gmfn, idx, + gpfn); + if (rc) { + return rc; + } + } + + return 0; +} + +static inline int xendevicemodel_pin_memory_cacheattr( + xendevicemodel_handle *dmod, domid_t domid, uint64_t start, uint64_t end, + uint32_t type) +{ + return xc_domain_pin_memory_cacheattr(xen_xc, domid, start, end, type); +} + +typedef void xenforeignmemory_resource_handle; + +#define XENMEM_resource_ioreq_server 0 + +#define XENMEM_resource_ioreq_server_frame_bufioreq 0 +#define XENMEM_resource_ioreq_server_frame_ioreq(n) (1 + (n)) + +static inline xenforeignmemory_resource_handle *xenforeignmemory_map_resource( + xenforeignmemory_handle *fmem, domid_t domid, unsigned int type, + unsigned int id, unsigned long frame, unsigned long nr_frames, + void **paddr, int prot, int flags) +{ + errno = EOPNOTSUPP; + return NULL; +} + +static inline int xenforeignmemory_unmap_resource( + xenforeignmemory_handle *fmem, xenforeignmemory_resource_handle *fres) +{ + return 0; +} + +#endif /* CONFIG_XEN_CTRL_INTERFACE_VERSION < 41100 */ + +#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 41000 + +#define XEN_COMPAT_PHYSMAP +static inline void *xenforeignmemory_map2(xenforeignmemory_handle *h, + uint32_t dom, void *addr, + int prot, int flags, size_t pages, + const xen_pfn_t arr[/*pages*/], + int err[/*pages*/]) +{ + assert(addr == NULL && flags == 0); + return xenforeignmemory_map(h, dom, prot, pages, arr, err); +} + +static inline int xentoolcore_restrict_all(domid_t domid) +{ + errno = ENOTTY; + return -1; +} + +static inline int xendevicemodel_shutdown(xendevicemodel_handle *dmod, + domid_t domid, unsigned int reason) +{ + errno = ENOTTY; + return -1; +} + +#else /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 41000 */ + +#include <xentoolcore.h> + +#endif + +#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 40900 + +static inline xendevicemodel_handle *xendevicemodel_open( + struct xentoollog_logger *logger, unsigned int open_flags) +{ + return xen_xc; +} + +#if CONFIG_XEN_CTRL_INTERFACE_VERSION >= 40500 + +static inline int xendevicemodel_create_ioreq_server( + xendevicemodel_handle *dmod, domid_t domid, int handle_bufioreq, + ioservid_t *id) +{ + return xc_hvm_create_ioreq_server(dmod, domid, handle_bufioreq, + id); +} + +static inline int xendevicemodel_get_ioreq_server_info( + xendevicemodel_handle *dmod, domid_t domid, ioservid_t id, + xen_pfn_t *ioreq_pfn, xen_pfn_t *bufioreq_pfn, + evtchn_port_t *bufioreq_port) +{ + return xc_hvm_get_ioreq_server_info(dmod, domid, id, ioreq_pfn, + bufioreq_pfn, bufioreq_port); +} + +static inline int xendevicemodel_map_io_range_to_ioreq_server( + xendevicemodel_handle *dmod, domid_t domid, ioservid_t id, int is_mmio, + uint64_t start, uint64_t end) +{ + return xc_hvm_map_io_range_to_ioreq_server(dmod, domid, id, is_mmio, + start, end); +} + +static inline int xendevicemodel_unmap_io_range_from_ioreq_server( + xendevicemodel_handle *dmod, domid_t domid, ioservid_t id, int is_mmio, + uint64_t start, uint64_t end) +{ + return xc_hvm_unmap_io_range_from_ioreq_server(dmod, domid, id, is_mmio, + start, end); +} + +static inline int xendevicemodel_map_pcidev_to_ioreq_server( + xendevicemodel_handle *dmod, domid_t domid, ioservid_t id, + uint16_t segment, uint8_t bus, uint8_t device, uint8_t function) +{ + return xc_hvm_map_pcidev_to_ioreq_server(dmod, domid, id, segment, + bus, device, function); +} + +static inline int xendevicemodel_unmap_pcidev_from_ioreq_server( + xendevicemodel_handle *dmod, domid_t domid, ioservid_t id, + uint16_t segment, uint8_t bus, uint8_t device, uint8_t function) +{ + return xc_hvm_unmap_pcidev_from_ioreq_server(dmod, domid, id, segment, + bus, device, function); +} + +static inline int xendevicemodel_destroy_ioreq_server( + xendevicemodel_handle *dmod, domid_t domid, ioservid_t id) +{ + return xc_hvm_destroy_ioreq_server(dmod, domid, id); +} + +static inline int xendevicemodel_set_ioreq_server_state( + xendevicemodel_handle *dmod, domid_t domid, ioservid_t id, int enabled) +{ + return xc_hvm_set_ioreq_server_state(dmod, domid, id, enabled); +} + +#endif /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 40500 */ + +static inline int xendevicemodel_set_pci_intx_level( + xendevicemodel_handle *dmod, domid_t domid, uint16_t segment, + uint8_t bus, uint8_t device, uint8_t intx, unsigned int level) +{ + return xc_hvm_set_pci_intx_level(dmod, domid, segment, bus, device, + intx, level); +} + +static inline int xendevicemodel_set_isa_irq_level( + xendevicemodel_handle *dmod, domid_t domid, uint8_t irq, + unsigned int level) +{ + return xc_hvm_set_isa_irq_level(dmod, domid, irq, level); +} + +static inline int xendevicemodel_set_pci_link_route( + xendevicemodel_handle *dmod, domid_t domid, uint8_t link, uint8_t irq) +{ + return xc_hvm_set_pci_link_route(dmod, domid, link, irq); +} + +static inline int xendevicemodel_inject_msi( + xendevicemodel_handle *dmod, domid_t domid, uint64_t msi_addr, + uint32_t msi_data) +{ + return xc_hvm_inject_msi(dmod, domid, msi_addr, msi_data); +} + +static inline int xendevicemodel_track_dirty_vram( + xendevicemodel_handle *dmod, domid_t domid, uint64_t first_pfn, + uint32_t nr, unsigned long *dirty_bitmap) +{ + return xc_hvm_track_dirty_vram(dmod, domid, first_pfn, nr, + dirty_bitmap); +} + +static inline int xendevicemodel_modified_memory( + xendevicemodel_handle *dmod, domid_t domid, uint64_t first_pfn, + uint32_t nr) +{ + return xc_hvm_modified_memory(dmod, domid, first_pfn, nr); +} + +static inline int xendevicemodel_set_mem_type( + xendevicemodel_handle *dmod, domid_t domid, hvmmem_type_t mem_type, + uint64_t first_pfn, uint32_t nr) +{ + return xc_hvm_set_mem_type(dmod, domid, mem_type, first_pfn, nr); +} + +#endif + +extern xendevicemodel_handle *xen_dmod; + +static inline int xen_set_mem_type(domid_t domid, hvmmem_type_t type, + uint64_t first_pfn, uint32_t nr) +{ + return xendevicemodel_set_mem_type(xen_dmod, domid, type, first_pfn, + nr); +} + +static inline int xen_set_pci_intx_level(domid_t domid, uint16_t segment, + uint8_t bus, uint8_t device, + uint8_t intx, unsigned int level) +{ + return xendevicemodel_set_pci_intx_level(xen_dmod, domid, segment, bus, + device, intx, level); +} + +static inline int xen_inject_msi(domid_t domid, uint64_t msi_addr, + uint32_t msi_data) +{ + return xendevicemodel_inject_msi(xen_dmod, domid, msi_addr, msi_data); +} + +static inline int xen_set_isa_irq_level(domid_t domid, uint8_t irq, + unsigned int level) +{ + return xendevicemodel_set_isa_irq_level(xen_dmod, domid, irq, level); +} + +static inline int xen_track_dirty_vram(domid_t domid, uint64_t first_pfn, + uint32_t nr, unsigned long *bitmap) +{ + return xendevicemodel_track_dirty_vram(xen_dmod, domid, first_pfn, nr, + bitmap); +} + +static inline int xen_modified_memory(domid_t domid, uint64_t first_pfn, + uint32_t nr) +{ + return xendevicemodel_modified_memory(xen_dmod, domid, first_pfn, nr); +} + +static inline int xen_restrict(domid_t domid) +{ + int rc; + rc = xentoolcore_restrict_all(domid); + trace_xen_domid_restrict(rc ? errno : 0); + return rc; +} + +void destroy_hvm_domain(bool reboot); + +/* shutdown/destroy current domain because of an error */ +void xen_shutdown_fatal_error(const char *fmt, ...) G_GNUC_PRINTF(1, 2); + +#ifdef HVM_PARAM_VMPORT_REGS_PFN +static inline int xen_get_vmport_regs_pfn(xc_interface *xc, domid_t dom, + xen_pfn_t *vmport_regs_pfn) +{ + int rc; + uint64_t value; + rc = xc_hvm_param_get(xc, dom, HVM_PARAM_VMPORT_REGS_PFN, &value); + if (rc >= 0) { + *vmport_regs_pfn = (xen_pfn_t) value; + } + return rc; +} +#else +static inline int xen_get_vmport_regs_pfn(xc_interface *xc, domid_t dom, + xen_pfn_t *vmport_regs_pfn) +{ + return -ENOSYS; +} +#endif + +/* Xen before 4.6 */ +#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 40600 + +#ifndef HVM_IOREQSRV_BUFIOREQ_ATOMIC +#define HVM_IOREQSRV_BUFIOREQ_ATOMIC 2 +#endif + +#endif + +static inline int xen_get_default_ioreq_server_info(domid_t dom, + xen_pfn_t *ioreq_pfn, + xen_pfn_t *bufioreq_pfn, + evtchn_port_t + *bufioreq_evtchn) +{ + unsigned long param; + int rc; + + rc = xc_get_hvm_param(xen_xc, dom, HVM_PARAM_IOREQ_PFN, ¶m); + if (rc < 0) { + fprintf(stderr, "failed to get HVM_PARAM_IOREQ_PFN\n"); + return -1; + } + + *ioreq_pfn = param; + + rc = xc_get_hvm_param(xen_xc, dom, HVM_PARAM_BUFIOREQ_PFN, ¶m); + if (rc < 0) { + fprintf(stderr, "failed to get HVM_PARAM_BUFIOREQ_PFN\n"); + return -1; + } + + *bufioreq_pfn = param; + + rc = xc_get_hvm_param(xen_xc, dom, HVM_PARAM_BUFIOREQ_EVTCHN, + ¶m); + if (rc < 0) { + fprintf(stderr, "failed to get HVM_PARAM_BUFIOREQ_EVTCHN\n"); + return -1; + } + + *bufioreq_evtchn = param; + + return 0; +} + +/* Xen before 4.5 */ +#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 40500 + +#ifndef HVM_PARAM_BUFIOREQ_EVTCHN +#define HVM_PARAM_BUFIOREQ_EVTCHN 26 +#endif + +#define IOREQ_TYPE_PCI_CONFIG 2 + +typedef uint16_t ioservid_t; + +static inline void xen_map_memory_section(domid_t dom, + ioservid_t ioservid, + MemoryRegionSection *section) +{ +} + +static inline void xen_unmap_memory_section(domid_t dom, + ioservid_t ioservid, + MemoryRegionSection *section) +{ +} + +static inline void xen_map_io_section(domid_t dom, + ioservid_t ioservid, + MemoryRegionSection *section) +{ +} + +static inline void xen_unmap_io_section(domid_t dom, + ioservid_t ioservid, + MemoryRegionSection *section) +{ +} + +static inline void xen_map_pcidev(domid_t dom, + ioservid_t ioservid, + PCIDevice *pci_dev) +{ +} + +static inline void xen_unmap_pcidev(domid_t dom, + ioservid_t ioservid, + PCIDevice *pci_dev) +{ +} + +static inline void xen_create_ioreq_server(domid_t dom, + ioservid_t *ioservid) +{ +} + +static inline void xen_destroy_ioreq_server(domid_t dom, + ioservid_t ioservid) +{ +} + +static inline int xen_get_ioreq_server_info(domid_t dom, + ioservid_t ioservid, + xen_pfn_t *ioreq_pfn, + xen_pfn_t *bufioreq_pfn, + evtchn_port_t *bufioreq_evtchn) +{ + return xen_get_default_ioreq_server_info(dom, ioreq_pfn, + bufioreq_pfn, + bufioreq_evtchn); +} + +static inline int xen_set_ioreq_server_state(domid_t dom, + ioservid_t ioservid, + bool enable) +{ + return 0; +} + +/* Xen 4.5 */ +#else + +static bool use_default_ioreq_server; + +static inline void xen_map_memory_section(domid_t dom, + ioservid_t ioservid, + MemoryRegionSection *section) +{ + hwaddr start_addr = section->offset_within_address_space; + ram_addr_t size = int128_get64(section->size); + hwaddr end_addr = start_addr + size - 1; + + if (use_default_ioreq_server) { + return; + } + + trace_xen_map_mmio_range(ioservid, start_addr, end_addr); + xendevicemodel_map_io_range_to_ioreq_server(xen_dmod, dom, ioservid, 1, + start_addr, end_addr); +} + +static inline void xen_unmap_memory_section(domid_t dom, + ioservid_t ioservid, + MemoryRegionSection *section) +{ + hwaddr start_addr = section->offset_within_address_space; + ram_addr_t size = int128_get64(section->size); + hwaddr end_addr = start_addr + size - 1; + + if (use_default_ioreq_server) { + return; + } + + trace_xen_unmap_mmio_range(ioservid, start_addr, end_addr); + xendevicemodel_unmap_io_range_from_ioreq_server(xen_dmod, dom, ioservid, + 1, start_addr, end_addr); +} + +static inline void xen_map_io_section(domid_t dom, + ioservid_t ioservid, + MemoryRegionSection *section) +{ + hwaddr start_addr = section->offset_within_address_space; + ram_addr_t size = int128_get64(section->size); + hwaddr end_addr = start_addr + size - 1; + + if (use_default_ioreq_server) { + return; + } + + trace_xen_map_portio_range(ioservid, start_addr, end_addr); + xendevicemodel_map_io_range_to_ioreq_server(xen_dmod, dom, ioservid, 0, + start_addr, end_addr); +} + +static inline void xen_unmap_io_section(domid_t dom, + ioservid_t ioservid, + MemoryRegionSection *section) +{ + hwaddr start_addr = section->offset_within_address_space; + ram_addr_t size = int128_get64(section->size); + hwaddr end_addr = start_addr + size - 1; + + if (use_default_ioreq_server) { + return; + } + + trace_xen_unmap_portio_range(ioservid, start_addr, end_addr); + xendevicemodel_unmap_io_range_from_ioreq_server(xen_dmod, dom, ioservid, + 0, start_addr, end_addr); +} + +static inline void xen_map_pcidev(domid_t dom, + ioservid_t ioservid, + PCIDevice *pci_dev) +{ + if (use_default_ioreq_server) { + return; + } + + trace_xen_map_pcidev(ioservid, pci_dev_bus_num(pci_dev), + PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn)); + xendevicemodel_map_pcidev_to_ioreq_server(xen_dmod, dom, ioservid, 0, + pci_dev_bus_num(pci_dev), + PCI_SLOT(pci_dev->devfn), + PCI_FUNC(pci_dev->devfn)); +} + +static inline void xen_unmap_pcidev(domid_t dom, + ioservid_t ioservid, + PCIDevice *pci_dev) +{ + if (use_default_ioreq_server) { + return; + } + + trace_xen_unmap_pcidev(ioservid, pci_dev_bus_num(pci_dev), + PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn)); + xendevicemodel_unmap_pcidev_from_ioreq_server(xen_dmod, dom, ioservid, 0, + pci_dev_bus_num(pci_dev), + PCI_SLOT(pci_dev->devfn), + PCI_FUNC(pci_dev->devfn)); +} + +static inline void xen_create_ioreq_server(domid_t dom, + ioservid_t *ioservid) +{ + int rc = xendevicemodel_create_ioreq_server(xen_dmod, dom, + HVM_IOREQSRV_BUFIOREQ_ATOMIC, + ioservid); + + if (rc == 0) { + trace_xen_ioreq_server_create(*ioservid); + return; + } + + *ioservid = 0; + use_default_ioreq_server = true; + trace_xen_default_ioreq_server(); +} + +static inline void xen_destroy_ioreq_server(domid_t dom, + ioservid_t ioservid) +{ + if (use_default_ioreq_server) { + return; + } + + trace_xen_ioreq_server_destroy(ioservid); + xendevicemodel_destroy_ioreq_server(xen_dmod, dom, ioservid); +} + +static inline int xen_get_ioreq_server_info(domid_t dom, + ioservid_t ioservid, + xen_pfn_t *ioreq_pfn, + xen_pfn_t *bufioreq_pfn, + evtchn_port_t *bufioreq_evtchn) +{ + if (use_default_ioreq_server) { + return xen_get_default_ioreq_server_info(dom, ioreq_pfn, + bufioreq_pfn, + bufioreq_evtchn); + } + + return xendevicemodel_get_ioreq_server_info(xen_dmod, dom, ioservid, + ioreq_pfn, bufioreq_pfn, + bufioreq_evtchn); +} + +static inline int xen_set_ioreq_server_state(domid_t dom, + ioservid_t ioservid, + bool enable) +{ + if (use_default_ioreq_server) { + return 0; + } + + trace_xen_ioreq_server_state(ioservid, enable); + return xendevicemodel_set_ioreq_server_state(xen_dmod, dom, ioservid, + enable); +} + +#endif + +#endif /* QEMU_HW_XEN_NATIVE_H */ |