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qemu-linux-user
0113-xen-make-use-of-xen_xc-implicit-in-.patch
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File 0113-xen-make-use-of-xen_xc-implicit-in-.patch of Package qemu-linux-user
From 40d6b49f4fc8e3c4d5d677b5a6b53f3e6a81611b Mon Sep 17 00:00:00 2001 From: Paul Durrant <paul.durrant@citrix.com> Date: Tue, 7 Mar 2017 10:55:30 +0000 Subject: [PATCH] xen: make use of xen_xc implicit in xen_common.h inlines Doing this will make the transition to using the new libxendevicemodel interface less intrusive on the callers of these functions, since using the new library will require a change of handle. NOTE: The patch also moves the 'externs' for xen_xc and xen_fmem from xen_backend.h to xen_common.h, and the declarations from xen_backend.c to xen-common.c, which is where they belong. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Reviewed-by: Anthony Perard <anthony.perard@citrix.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> (cherry picked from commit 260cabed718c4d3137553a4a98de268b0fb166b7) [LD: BSC#1100408] Signed-off-by: Larry Dewey <ldewey@suse.com> --- hw/xen/xen_backend.c | 2 - include/hw/xen/xen_backend.h | 2 - include/hw/xen/xen_common.h | 90 +++++++++++++++++++----------------- xen-common.c | 3 ++ xen-hvm.c | 20 ++++---- 5 files changed, 60 insertions(+), 57 deletions(-) diff --git a/hw/xen/xen_backend.c b/hw/xen/xen_backend.c index 6c21c37d68..d34c49e152 100644 --- a/hw/xen/xen_backend.c +++ b/hw/xen/xen_backend.c @@ -43,8 +43,6 @@ BusState *xen_sysbus; /* ------------------------------------------------------------- */ /* public */ -xc_interface *xen_xc = NULL; -xenforeignmemory_handle *xen_fmem = NULL; struct xs_handle *xenstore = NULL; const char *xen_protocol; diff --git a/include/hw/xen/xen_backend.h b/include/hw/xen/xen_backend.h index 4f4799a610..30811a1e5d 100644 --- a/include/hw/xen/xen_backend.h +++ b/include/hw/xen/xen_backend.h @@ -14,8 +14,6 @@ OBJECT_CHECK(XenDevice, (obj), TYPE_XENBACKEND) /* variables */ -extern xc_interface *xen_xc; -extern xenforeignmemory_handle *xen_fmem; extern struct xs_handle *xenstore; extern const char *xen_protocol; extern DeviceState *xen_sysdev; diff --git a/include/hw/xen/xen_common.h b/include/hw/xen/xen_common.h index dce76ee162..1e08b98617 100644 --- a/include/hw/xen/xen_common.h +++ b/include/hw/xen/xen_common.h @@ -20,6 +20,8 @@ #include "qemu/queue.h" #include "hw/xen/trace.h" +extern xc_interface *xen_xc; + /* * We don't support Xen prior to 4.2.0. */ @@ -73,6 +75,8 @@ static inline void *xenforeignmemory_map(xc_interface *h, uint32_t dom, #endif +extern xenforeignmemory_handle *xen_fmem; + void destroy_hvm_domain(bool reboot); /* shutdown/destroy current domain because of an error */ @@ -107,8 +111,7 @@ static inline int xen_get_vmport_regs_pfn(xc_interface *xc, domid_t dom, #endif -static inline int xen_get_default_ioreq_server_info(xc_interface *xc, - domid_t dom, +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 @@ -117,7 +120,7 @@ static inline int xen_get_default_ioreq_server_info(xc_interface *xc, unsigned long param; int rc; - rc = xc_get_hvm_param(xc, dom, HVM_PARAM_IOREQ_PFN, ¶m); + 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; @@ -125,7 +128,7 @@ static inline int xen_get_default_ioreq_server_info(xc_interface *xc, *ioreq_pfn = param; - rc = xc_get_hvm_param(xc, dom, HVM_PARAM_BUFIOREQ_PFN, ¶m); + 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; @@ -133,7 +136,7 @@ static inline int xen_get_default_ioreq_server_info(xc_interface *xc, *bufioreq_pfn = param; - rc = xc_get_hvm_param(xc, dom, HVM_PARAM_BUFIOREQ_EVTCHN, + 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"); @@ -156,63 +159,64 @@ static inline int xen_get_default_ioreq_server_info(xc_interface *xc, typedef uint16_t ioservid_t; -static inline void xen_map_memory_section(xc_interface *xc, domid_t dom, +static inline void xen_map_memory_section(domid_t dom, ioservid_t ioservid, MemoryRegionSection *section) { } -static inline void xen_unmap_memory_section(xc_interface *xc, domid_t dom, +static inline void xen_unmap_memory_section(domid_t dom, ioservid_t ioservid, MemoryRegionSection *section) { } -static inline void xen_map_io_section(xc_interface *xc, domid_t dom, +static inline void xen_map_io_section(domid_t dom, ioservid_t ioservid, MemoryRegionSection *section) { } -static inline void xen_unmap_io_section(xc_interface *xc, domid_t dom, +static inline void xen_unmap_io_section(domid_t dom, ioservid_t ioservid, MemoryRegionSection *section) { } -static inline void xen_map_pcidev(xc_interface *xc, domid_t dom, +static inline void xen_map_pcidev(domid_t dom, ioservid_t ioservid, PCIDevice *pci_dev) { } -static inline void xen_unmap_pcidev(xc_interface *xc, domid_t dom, +static inline void xen_unmap_pcidev(domid_t dom, ioservid_t ioservid, PCIDevice *pci_dev) { } -static inline void xen_create_ioreq_server(xc_interface *xc, domid_t dom, +static inline void xen_create_ioreq_server(domid_t dom, ioservid_t *ioservid) { } -static inline void xen_destroy_ioreq_server(xc_interface *xc, domid_t dom, +static inline void xen_destroy_ioreq_server(domid_t dom, ioservid_t ioservid) { } -static inline int xen_get_ioreq_server_info(xc_interface *xc, domid_t dom, +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(xc, dom, ioreq_pfn, bufioreq_pfn, + return xen_get_default_ioreq_server_info(dom, ioreq_pfn, + bufioreq_pfn, bufioreq_evtchn); } -static inline int xen_set_ioreq_server_state(xc_interface *xc, domid_t dom, +static inline int xen_set_ioreq_server_state(domid_t dom, ioservid_t ioservid, bool enable) { @@ -224,7 +228,7 @@ static inline int xen_set_ioreq_server_state(xc_interface *xc, domid_t dom, static bool use_default_ioreq_server; -static inline void xen_map_memory_section(xc_interface *xc, domid_t dom, +static inline void xen_map_memory_section(domid_t dom, ioservid_t ioservid, MemoryRegionSection *section) { @@ -237,11 +241,11 @@ static inline void xen_map_memory_section(xc_interface *xc, domid_t dom, } trace_xen_map_mmio_range(ioservid, start_addr, end_addr); - xc_hvm_map_io_range_to_ioreq_server(xc, dom, ioservid, 1, + xc_hvm_map_io_range_to_ioreq_server(xen_xc, dom, ioservid, 1, start_addr, end_addr); } -static inline void xen_unmap_memory_section(xc_interface *xc, domid_t dom, +static inline void xen_unmap_memory_section(domid_t dom, ioservid_t ioservid, MemoryRegionSection *section) { @@ -253,13 +257,12 @@ static inline void xen_unmap_memory_section(xc_interface *xc, domid_t dom, return; } - trace_xen_unmap_mmio_range(ioservid, start_addr, end_addr); - xc_hvm_unmap_io_range_from_ioreq_server(xc, dom, ioservid, 1, - start_addr, end_addr); + xc_hvm_unmap_io_range_from_ioreq_server(xen_xc, dom, ioservid, + 1, start_addr, end_addr); } -static inline void xen_map_io_section(xc_interface *xc, domid_t dom, +static inline void xen_map_io_section(domid_t dom, ioservid_t ioservid, MemoryRegionSection *section) { @@ -271,13 +274,12 @@ static inline void xen_map_io_section(xc_interface *xc, domid_t dom, return; } - trace_xen_map_portio_range(ioservid, start_addr, end_addr); - xc_hvm_map_io_range_to_ioreq_server(xc, dom, ioservid, 0, + xc_hvm_map_io_range_to_ioreq_server(xen_xc, dom, ioservid, 0, start_addr, end_addr); } -static inline void xen_unmap_io_section(xc_interface *xc, domid_t dom, +static inline void xen_unmap_io_section(domid_t dom, ioservid_t ioservid, MemoryRegionSection *section) { @@ -290,11 +292,11 @@ static inline void xen_unmap_io_section(xc_interface *xc, domid_t dom, } trace_xen_unmap_portio_range(ioservid, start_addr, end_addr); - xc_hvm_unmap_io_range_from_ioreq_server(xc, dom, ioservid, 0, - start_addr, end_addr); + xc_hvm_unmap_io_range_from_ioreq_server(xen_xc, dom, ioservid, + 0, start_addr, end_addr); } -static inline void xen_map_pcidev(xc_interface *xc, domid_t dom, +static inline void xen_map_pcidev(domid_t dom, ioservid_t ioservid, PCIDevice *pci_dev) { @@ -304,13 +306,13 @@ static inline void xen_map_pcidev(xc_interface *xc, 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(xc, dom, ioservid, - 0, pci_bus_num(pci_dev->bus), + 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)); } -static inline void xen_unmap_pcidev(xc_interface *xc, domid_t dom, +static inline void xen_unmap_pcidev(domid_t dom, ioservid_t ioservid, PCIDevice *pci_dev) { @@ -320,16 +322,17 @@ static inline void xen_unmap_pcidev(xc_interface *xc, 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(xc, dom, ioservid, - 0, pci_bus_num(pci_dev->bus), + 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)); } -static inline void xen_create_ioreq_server(xc_interface *xc, domid_t dom, +static inline void xen_create_ioreq_server(domid_t dom, ioservid_t *ioservid) { - int rc = xc_hvm_create_ioreq_server(xc, dom, HVM_IOREQSRV_BUFIOREQ_ATOMIC, + int rc = xc_hvm_create_ioreq_server(xen_xc, dom, + HVM_IOREQSRV_BUFIOREQ_ATOMIC, ioservid); if (rc == 0) { @@ -342,7 +345,7 @@ static inline void xen_create_ioreq_server(xc_interface *xc, domid_t dom, trace_xen_default_ioreq_server(); } -static inline void xen_destroy_ioreq_server(xc_interface *xc, domid_t dom, +static inline void xen_destroy_ioreq_server(domid_t dom, ioservid_t ioservid) { if (use_default_ioreq_server) { @@ -350,27 +353,27 @@ static inline void xen_destroy_ioreq_server(xc_interface *xc, domid_t dom, } trace_xen_ioreq_server_destroy(ioservid); - xc_hvm_destroy_ioreq_server(xc, dom, ioservid); + xc_hvm_destroy_ioreq_server(xen_xc, dom, ioservid); } -static inline int xen_get_ioreq_server_info(xc_interface *xc, domid_t dom, +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(xc, dom, ioreq_pfn, + return xen_get_default_ioreq_server_info(dom, ioreq_pfn, bufioreq_pfn, bufioreq_evtchn); } - return xc_hvm_get_ioreq_server_info(xc, dom, ioservid, + return xc_hvm_get_ioreq_server_info(xen_xc, dom, ioservid, ioreq_pfn, bufioreq_pfn, bufioreq_evtchn); } -static inline int xen_set_ioreq_server_state(xc_interface *xc, domid_t dom, +static inline int xen_set_ioreq_server_state(domid_t dom, ioservid_t ioservid, bool enable) { @@ -379,7 +382,8 @@ static inline int xen_set_ioreq_server_state(xc_interface *xc, domid_t dom, } trace_xen_ioreq_server_state(ioservid, enable); - return xc_hvm_set_ioreq_server_state(xc, dom, ioservid, enable); + return xc_hvm_set_ioreq_server_state(xen_xc, dom, ioservid, + enable); } #endif diff --git a/xen-common.c b/xen-common.c index 0a62ea8042..950f7a44f8 100644 --- a/xen-common.c +++ b/xen-common.c @@ -32,6 +32,9 @@ void xen_blk_resize_cb(void *dev) xen_blk_resize_update(dev); } +xc_interface *xen_xc; +xenforeignmemory_handle *xen_fmem; + static int store_dev_info(int domid, Chardev *cs, const char *string) { struct xs_handle *xs = NULL; diff --git a/xen-hvm.c b/xen-hvm.c index 3ae9060beb..edf4983702 100644 --- a/xen-hvm.c +++ b/xen-hvm.c @@ -454,10 +454,10 @@ static void xen_set_memory(struct MemoryListener *listener, return; } else { if (add) { - xen_map_memory_section(xen_xc, xen_domid, state->ioservid, + xen_map_memory_section(xen_domid, state->ioservid, section); } else { - xen_unmap_memory_section(xen_xc, xen_domid, state->ioservid, + xen_unmap_memory_section(xen_domid, state->ioservid, section); } } @@ -521,7 +521,7 @@ static void xen_io_add(MemoryListener *listener, memory_region_ref(mr); - xen_map_io_section(xen_xc, xen_domid, state->ioservid, section); + xen_map_io_section(xen_domid, state->ioservid, section); } static void xen_io_del(MemoryListener *listener, @@ -534,7 +534,7 @@ static void xen_io_del(MemoryListener *listener, return; } - xen_unmap_io_section(xen_xc, xen_domid, state->ioservid, section); + xen_unmap_io_section(xen_domid, state->ioservid, section); memory_region_unref(mr); } @@ -547,7 +547,7 @@ static void xen_device_realize(DeviceListener *listener, if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { PCIDevice *pci_dev = PCI_DEVICE(dev); - xen_map_pcidev(xen_xc, xen_domid, state->ioservid, pci_dev); + xen_map_pcidev(xen_domid, state->ioservid, pci_dev); } } @@ -559,7 +559,7 @@ static void xen_device_unrealize(DeviceListener *listener, if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { PCIDevice *pci_dev = PCI_DEVICE(dev); - xen_unmap_pcidev(xen_xc, xen_domid, state->ioservid, pci_dev); + xen_unmap_pcidev(xen_domid, state->ioservid, pci_dev); } } @@ -1139,7 +1139,7 @@ static void xen_hvm_change_state_handler(void *opaque, int running, xen_main_loop_prepare(state); } - xen_set_ioreq_server_state(xen_xc, xen_domid, + xen_set_ioreq_server_state(xen_domid, state->ioservid, (rstate == RUN_STATE_RUNNING)); } @@ -1227,7 +1227,7 @@ void xen_hvm_init(PCMachineState *pcms, MemoryRegion **ram_memory) goto err; } - xen_create_ioreq_server(xen_xc, xen_domid, &state->ioservid); + xen_create_ioreq_server(xen_domid, &state->ioservid); state->exit.notify = xen_exit_notifier; qemu_add_exit_notifier(&state->exit); @@ -1238,7 +1238,7 @@ void xen_hvm_init(PCMachineState *pcms, MemoryRegion **ram_memory) state->wakeup.notify = xen_wakeup_notifier; qemu_register_wakeup_notifier(&state->wakeup); - rc = xen_get_ioreq_server_info(xen_xc, xen_domid, state->ioservid, + rc = xen_get_ioreq_server_info(xen_domid, state->ioservid, &ioreq_pfn, &bufioreq_pfn, &bufioreq_evtchn); if (rc < 0) { @@ -1288,7 +1288,7 @@ void xen_hvm_init(PCMachineState *pcms, MemoryRegion **ram_memory) /* Note: cpus is empty at this point in init */ state->cpu_by_vcpu_id = g_malloc0(max_cpus * sizeof(CPUState *)); - rc = xen_set_ioreq_server_state(xen_xc, xen_domid, state->ioservid, true); + rc = xen_set_ioreq_server_state(xen_domid, state->ioservid, true); if (rc < 0) { error_report("failed to enable ioreq server info: error %d handle=%p", errno, xen_xc);
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