From c4fa82c4d243730daccdf5b6668fb8e559460a76 Mon Sep 17 00:00:00 2001 From: Paul Durrant Date: Tue, 7 Mar 2017 10:55:34 +0000 Subject: [PATCH 5/6] xen: use libxendevicemodel when available This patch modifies the wrapper functions in xen_common.h to use the new xendevicemodel interface if it is available along with compatibility code to use the old libxenctrl interface if it is not. Signed-off-by: Paul Durrant Signed-off-by: Stefano Stabellini Reviewed-by: Anthony Perard Reviewed-by: Stefano Stabellini (cherry picked from commit d655f34e6d6a68f64e885fa85295e0c7a31ce846) --- include/hw/xen/xen_common.h | 203 +++++++++++++++++++++++++++++++++++++------- xen-common.c | 8 ++ 2 files changed, 178 insertions(+), 33 deletions(-) diff --git a/include/hw/xen/xen_common.h b/include/hw/xen/xen_common.h index 31cf25f846..b1f5f53e35 100644 --- a/include/hw/xen/xen_common.h +++ b/include/hw/xen/xen_common.h @@ -26,48 +26,184 @@ extern xc_interface *xen_xc; * We don't support Xen prior to 4.2.0. */ +#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 490 + +typedef xc_interface xendevicemodel_handle; + +static inline xendevicemodel_handle *xendevicemodel_open( + struct xentoollog_logger *logger, unsigned int open_flags) +{ + return xen_xc; +} + +#if CONFIG_XEN_CTRL_INTERFACE_VERSION >= 450 + +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 >= 450 */ + +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); +} + +#else /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 490 */ + +#undef XC_WANT_COMPAT_DEVICEMODEL_API +#include + +#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 xc_hvm_set_mem_type(xen_xc, domid, type, first_pfn, 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 xc_hvm_set_pci_intx_level(xen_xc, domid, segment, bus, device, - intx, level); + return xendevicemodel_set_pci_intx_level(xen_dmod, domid, segment, bus, + device, intx, level); } static inline int xen_set_pci_link_route(domid_t domid, uint8_t link, uint8_t irq) { - return xc_hvm_set_pci_link_route(xen_xc, domid, link, irq); + return xendevicemodel_set_pci_link_route(xen_dmod, domid, link, irq); } static inline int xen_inject_msi(domid_t domid, uint64_t msi_addr, uint32_t msi_data) { - return xc_hvm_inject_msi(xen_xc, domid, msi_addr, 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 xc_hvm_set_isa_irq_level(xen_xc, domid, irq, 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 xc_hvm_track_dirty_vram(xen_xc, domid, first_pfn, nr, 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 xc_hvm_modified_memory(xen_xc, domid, first_pfn, nr); + return xendevicemodel_modified_memory(xen_dmod, domid, first_pfn, nr); } /* Xen 4.2 through 4.6 */ @@ -97,6 +233,7 @@ typedef xc_gnttab xengnttab_handle; xc_gnttab_map_domain_grant_refs(h, c, d, r, p) #define xenforeignmemory_open(l, f) xen_xc +#define xenforeignmemory_close(h) static inline void *xenforeignmemory_map(xc_interface *h, uint32_t dom, int prot, size_t pages, @@ -285,8 +422,8 @@ static inline void xen_map_memory_section(domid_t dom, } trace_xen_map_mmio_range(ioservid, start_addr, end_addr); - xc_hvm_map_io_range_to_ioreq_server(xen_xc, dom, ioservid, 1, - 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, @@ -302,8 +439,8 @@ static inline void xen_unmap_memory_section(domid_t dom, } trace_xen_unmap_mmio_range(ioservid, start_addr, end_addr); - xc_hvm_unmap_io_range_from_ioreq_server(xen_xc, dom, ioservid, - 1, 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, @@ -319,8 +456,8 @@ static inline void xen_map_io_section(domid_t dom, } trace_xen_map_portio_range(ioservid, start_addr, end_addr); - xc_hvm_map_io_range_to_ioreq_server(xen_xc, dom, ioservid, 0, - 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, @@ -336,8 +473,8 @@ static inline void xen_unmap_io_section(domid_t dom, } trace_xen_unmap_portio_range(ioservid, start_addr, end_addr); - xc_hvm_unmap_io_range_from_ioreq_server(xen_xc, dom, ioservid, - 0, 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, @@ -350,10 +487,10 @@ static inline void xen_map_pcidev(domid_t dom, trace_xen_map_pcidev(ioservid, pci_bus_num(pci_dev->bus), PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn)); - xc_hvm_map_pcidev_to_ioreq_server(xen_xc, dom, ioservid, 0, - pci_bus_num(pci_dev->bus), - PCI_SLOT(pci_dev->devfn), - PCI_FUNC(pci_dev->devfn)); + xendevicemodel_map_pcidev_to_ioreq_server(xen_dmod, dom, ioservid, 0, + pci_bus_num(pci_dev->bus), + PCI_SLOT(pci_dev->devfn), + PCI_FUNC(pci_dev->devfn)); } static inline void xen_unmap_pcidev(domid_t dom, @@ -366,18 +503,18 @@ static inline void xen_unmap_pcidev(domid_t dom, trace_xen_unmap_pcidev(ioservid, pci_bus_num(pci_dev->bus), PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn)); - xc_hvm_unmap_pcidev_from_ioreq_server(xen_xc, dom, ioservid, 0, - pci_bus_num(pci_dev->bus), - PCI_SLOT(pci_dev->devfn), - PCI_FUNC(pci_dev->devfn)); + xendevicemodel_unmap_pcidev_from_ioreq_server(xen_dmod, dom, ioservid, 0, + pci_bus_num(pci_dev->bus), + 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 = xc_hvm_create_ioreq_server(xen_xc, dom, - HVM_IOREQSRV_BUFIOREQ_ATOMIC, - ioservid); + int rc = xendevicemodel_create_ioreq_server(xen_dmod, dom, + HVM_IOREQSRV_BUFIOREQ_ATOMIC, + ioservid); if (rc == 0) { trace_xen_ioreq_server_create(*ioservid); @@ -397,7 +534,7 @@ static inline void xen_destroy_ioreq_server(domid_t dom, } trace_xen_ioreq_server_destroy(ioservid); - xc_hvm_destroy_ioreq_server(xen_xc, dom, ioservid); + xendevicemodel_destroy_ioreq_server(xen_dmod, dom, ioservid); } static inline int xen_get_ioreq_server_info(domid_t dom, @@ -412,9 +549,9 @@ static inline int xen_get_ioreq_server_info(domid_t dom, bufioreq_evtchn); } - return xc_hvm_get_ioreq_server_info(xen_xc, dom, ioservid, - 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, @@ -426,8 +563,8 @@ static inline int xen_set_ioreq_server_state(domid_t dom, } trace_xen_ioreq_server_state(ioservid, enable); - return xc_hvm_set_ioreq_server_state(xen_xc, dom, ioservid, - enable); + return xendevicemodel_set_ioreq_server_state(xen_dmod, dom, ioservid, + enable); } #endif diff --git a/xen-common.c b/xen-common.c index 703e7a5861..ae76150e8a 100644 --- a/xen-common.c +++ b/xen-common.c @@ -27,6 +27,7 @@ xc_interface *xen_xc; xenforeignmemory_handle *xen_fmem; +xendevicemodel_handle *xen_dmod; static int store_dev_info(int domid, Chardev *cs, const char *string) { @@ -128,6 +129,13 @@ static int xen_init(MachineState *ms) xc_interface_close(xen_xc); return -1; } + xen_dmod = xendevicemodel_open(0, 0); + if (xen_dmod == NULL) { + xen_pv_printf(NULL, 0, "can't open xen devicemodel interface\n"); + xenforeignmemory_close(xen_fmem); + xc_interface_close(xen_xc); + return -1; + } qemu_add_vm_change_state_handler(xen_change_state_handler, NULL); global_state_set_optional(); -- 2.13.0