virtio: decrement vq->inuse in virtqueue_discard()

[mirror_qemu.git] / xen-hvm.c

diff --git a/xen-hvm.c b/xen-hvm.c
index 918cabc1aaa6114d8b0499dbc45c7b691bbd4bcc..3b0343a8e6f8c1f64df7b03be6529c71903431aa 100644 (file)
--- a/xen-hvm.c
+++ b/xen-hvm.c
@@ -9,8 +9,8 @@
  */
 
 #include "qemu/osdep.h"
-#include <sys/mman.h>
 
+#include "cpu.h"
 #include "hw/pci/pci.h"
 #include "hw/i386/pc.h"
 #include "hw/i386/apic-msidef.h"
@@ -67,17 +67,6 @@ struct shared_vmport_iopage {
 typedef struct shared_vmport_iopage shared_vmport_iopage_t;
 #endif
 
-#if __XEN_LATEST_INTERFACE_VERSION__ < 0x0003020a
-static inline uint32_t xen_vcpu_eport(shared_iopage_t *shared_page, int i)
-{
-    return shared_page->vcpu_iodata[i].vp_eport;
-}
-static inline ioreq_t *xen_vcpu_ioreq(shared_iopage_t *shared_page, int vcpu)
-{
-    return &shared_page->vcpu_iodata[vcpu].vp_ioreq;
-}
-#  define FMT_ioreq_size PRIx64
-#else
 static inline uint32_t xen_vcpu_eport(shared_iopage_t *shared_page, int i)
 {
     return shared_page->vcpu_ioreq[i].vp_eport;
@@ -86,8 +75,6 @@ static inline ioreq_t *xen_vcpu_ioreq(shared_iopage_t *shared_page, int vcpu)
 {
     return &shared_page->vcpu_ioreq[vcpu];
 }
-#  define FMT_ioreq_size "u"
-#endif
 
 #define BUFFER_IO_MAX_DELAY  100
 
@@ -203,6 +190,9 @@ static void xen_ram_init(PCMachineState *pcms,
     /* Handle the machine opt max-ram-below-4g.  It is basically doing
      * min(xen limit, user limit).
      */
+    if (!user_lowmem) {
+        user_lowmem = HVM_BELOW_4G_RAM_END; /* default */
+    }
     if (HVM_BELOW_4G_RAM_END <= user_lowmem) {
         user_lowmem = HVM_BELOW_4G_RAM_END;
     }
@@ -523,8 +513,13 @@ static void xen_io_add(MemoryListener *listener,
                        MemoryRegionSection *section)
 {
     XenIOState *state = container_of(listener, XenIOState, io_listener);
+    MemoryRegion *mr = section->mr;
 
-    memory_region_ref(section->mr);
+    if (mr->ops == &unassigned_io_ops) {
+        return;
+    }
+
+    memory_region_ref(mr);
 
     xen_map_io_section(xen_xc, xen_domid, state->ioservid, section);
 }
@@ -533,10 +528,15 @@ static void xen_io_del(MemoryListener *listener,
                        MemoryRegionSection *section)
 {
     XenIOState *state = container_of(listener, XenIOState, io_listener);
+    MemoryRegion *mr = section->mr;
+
+    if (mr->ops == &unassigned_io_ops) {
+        return;
+    }
 
     xen_unmap_io_section(xen_xc, xen_domid, state->ioservid, section);
 
-    memory_region_unref(section->mr);
+    memory_region_unref(mr);
 }
 
 static void xen_device_realize(DeviceListener *listener,
@@ -569,7 +569,7 @@ static void xen_sync_dirty_bitmap(XenIOState *state,
 {
     hwaddr npages = size >> TARGET_PAGE_BITS;
     const int width = sizeof(unsigned long) * 8;
-    unsigned long bitmap[(npages + width - 1) / width];
+    unsigned long bitmap[DIV_ROUND_UP(npages, width)];
     int rc, i, j;
     const XenPhysmap *physmap = NULL;
 
@@ -688,7 +688,7 @@ static ioreq_t *cpu_get_ioreq_from_shared_memory(XenIOState *state, int vcpu)
     if (req->state != STATE_IOREQ_READY) {
         DPRINTF("I/O request not ready: "
                 "%x, ptr: %x, port: %"PRIx64", "
-                "data: %"PRIx64", count: %" FMT_ioreq_size ", size: %" FMT_ioreq_size "\n",
+                "data: %"PRIx64", count: %u, size: %u\n",
                 req->state, req->data_is_ptr, req->addr,
                 req->data, req->count, req->size);
         return NULL;
@@ -738,7 +738,7 @@ static ioreq_t *cpu_get_ioreq(XenIOState *state)
     return NULL;
 }
 
-static uint32_t do_inp(pio_addr_t addr, unsigned long size)
+static uint32_t do_inp(uint32_t addr, unsigned long size)
 {
     switch (size) {
         case 1:
@@ -748,11 +748,11 @@ static uint32_t do_inp(pio_addr_t addr, unsigned long size)
         case 4:
             return cpu_inl(addr);
         default:
-            hw_error("inp: bad size: %04"FMT_pioaddr" %lx", addr, size);
+            hw_error("inp: bad size: %04x %lx", addr, size);
     }
 }
 
-static void do_outp(pio_addr_t addr,
+static void do_outp(uint32_t addr,
         unsigned long size, uint32_t val)
 {
     switch (size) {
@@ -763,7 +763,7 @@ static void do_outp(pio_addr_t addr,
         case 4:
             return cpu_outl(addr, val);
         default:
-            hw_error("outp: bad size: %04"FMT_pioaddr" %lx", addr, size);
+            hw_error("outp: bad size: %04x %lx", addr, size);
     }
 }
 
@@ -1050,9 +1050,7 @@ static void cpu_handle_ioreq(void *opaque)
         if (req->state != STATE_IOREQ_INPROCESS) {
             fprintf(stderr, "Badness in I/O request ... not in service?!: "
                     "%x, ptr: %x, port: %"PRIx64", "
-                    "data: %"PRIx64", count: %" FMT_ioreq_size
-                    ", size: %" FMT_ioreq_size
-                    ", type: %"FMT_ioreq_size"\n",
+                    "data: %"PRIx64", count: %u, size: %u, type: %u\n",
                     req->state, req->data_is_ptr, req->addr,
                     req->data, req->count, req->size, req->type);
             destroy_hvm_domain(false);
@@ -1224,7 +1222,7 @@ void xen_hvm_init(PCMachineState *pcms, MemoryRegion **ram_memory)
                                    &ioreq_pfn, &bufioreq_pfn,
                                    &bufioreq_evtchn);
     if (rc < 0) {
-        error_report("failed to get ioreq server info: error %d handle=" XC_INTERFACE_FMT,
+        error_report("failed to get ioreq server info: error %d handle=%p",
                      errno, xen_xc);
         goto err;
     }
@@ -1237,7 +1235,7 @@ void xen_hvm_init(PCMachineState *pcms, MemoryRegion **ram_memory)
                                               PROT_READ|PROT_WRITE,
                                               1, &ioreq_pfn, NULL);
     if (state->shared_page == NULL) {
-        error_report("map shared IO page returned error %d handle=" XC_INTERFACE_FMT,
+        error_report("map shared IO page returned error %d handle=%p",
                      errno, xen_xc);
         goto err;
     }
@@ -1249,8 +1247,8 @@ void xen_hvm_init(PCMachineState *pcms, MemoryRegion **ram_memory)
             xenforeignmemory_map(xen_fmem, xen_domid, PROT_READ|PROT_WRITE,
                                  1, &ioreq_pfn, NULL);
         if (state->shared_vmport_page == NULL) {
-            error_report("map shared vmport IO page returned error %d handle="
-                         XC_INTERFACE_FMT, errno, xen_xc);
+            error_report("map shared vmport IO page returned error %d handle=%p",
+                         errno, xen_xc);
             goto err;
         }
     } else if (rc != -ENOSYS) {
@@ -1272,7 +1270,7 @@ void xen_hvm_init(PCMachineState *pcms, MemoryRegion **ram_memory)
 
     rc = xen_set_ioreq_server_state(xen_xc, xen_domid, state->ioservid, true);
     if (rc < 0) {
-        error_report("failed to enable ioreq server info: error %d handle=" XC_INTERFACE_FMT,
+        error_report("failed to enable ioreq server info: error %d handle=%p",
                      errno, xen_xc);
         goto err;
     }
@@ -1320,9 +1318,7 @@ void xen_hvm_init(PCMachineState *pcms, MemoryRegion **ram_memory)
         error_report("xen backend core setup failed");
         goto err;
     }
-    xen_be_register("console", &xen_console_ops);
-    xen_be_register("vkbd", &xen_kbdmouse_ops);
-    xen_be_register("qdisk", &xen_blkdev_ops);
+    xen_be_register_common();
     xen_read_physmap(state);
     return;
 
@@ -1333,11 +1329,11 @@ err:
 
 void destroy_hvm_domain(bool reboot)
 {
-    XenXC xc_handle;
+    xc_interface *xc_handle;
     int sts;
 
-    xc_handle = xen_xc_interface_open(0, 0, 0);
-    if (xc_handle == XC_HANDLER_INITIAL_VALUE) {
+    xc_handle = xc_interface_open(0, 0, 0);
+    if (xc_handle == NULL) {
         fprintf(stderr, "Cannot acquire xenctrl handle\n");
     } else {
         sts = xc_domain_shutdown(xc_handle, xen_domid,