ia64: configure VHPT size per domain: common part

Signed-off-by: Kouya Shimura <kouya@jp.fujitsu.com>

tools/examples/xmexample.vti

@@ -35,6 +35,10 @@ name = "ExampleVTIDomain"
 #cpus = "0"        # all vcpus run on CPU0
 #cpus = "0-3,5,^1" # run on cpus 0,2,3,5
 
+# Log2 of VHPT size, default=23 (8MB), minimum=15 (32KB).
+# In Windows OS, smaller size shows better performance.
+#vhpt = 23
+
 # Optionally define mac and/or bridge for the network interfaces.
 # Random MACs are assigned if not given.
 #vif = [ 'type=ioemu, mac=00:16:3e:00:00:11, bridge=xenbr0, model=ne2k_pci' ]

tools/libxc/xc_dom_ia64.c

@@ -260,6 +260,7 @@ int arch_setup_bootearly(struct xc_dom_image *dom)
     domctl.u.arch_setup.bp = (dom->start_info_pfn << PAGE_SHIFT)
         + sizeof(start_info_t);
     domctl.u.arch_setup.maxmem = dom->total_pages << PAGE_SHIFT;
+    domctl.u.arch_setup.vhpt_size_log2 = dom->flags;
     rc = do_domctl(dom->guest_xc, &domctl);
     return rc;
 }

tools/python/xen/xend/XendConfig.py

@@ -127,7 +127,7 @@ XENAPI_PLATFORM_CFG = [ 'acpi', 'apic', 'boot', 'device_model', 'display',
                         'nographic', 'pae', 'rtc_timeoffset', 'serial', 'sdl',
                         'soundhw','stdvga', 'usb', 'usbdevice', 'vnc',
                         'vncconsole', 'vncdisplay', 'vnclisten',
-                        'vncpasswd', 'vncunused', 'xauthority', 'pci']
+                        'vncpasswd', 'vncunused', 'xauthority', 'pci', 'vhpt']
 
 # Xen API console 'other_config' keys.
 XENAPI_CONSOLE_OTHER_CFG = ['vncunused', 'vncdisplay', 'vnclisten',

tools/python/xen/xend/XendConstants.py

@@ -43,6 +43,8 @@ HVM_PARAM_STORE_EVTCHN = 2
 HVM_PARAM_PAE_ENABLED  = 4
 HVM_PARAM_IOREQ_PFN    = 5
 HVM_PARAM_BUFIOREQ_PFN = 6
+HVM_PARAM_NVRAM_FD     = 7
+HVM_PARAM_VHPT_SIZE    = 8
 
 restart_modes = [
     "restart",

tools/python/xen/xend/image.py

@@ -197,6 +197,7 @@ class ImageHandler:
 class LinuxImageHandler(ImageHandler):
 
     ostype = "linux"
+    flags = 0
 
     def buildDomain(self):
         store_evtchn = self.vm.getStorePort()
@@ -213,6 +214,8 @@ class LinuxImageHandler(ImageHandler):
         log.debug("ramdisk        = %s", self.ramdisk)
         log.debug("vcpus          = %d", self.vm.getVCpuCount())
         log.debug("features       = %s", self.vm.getFeatures())
+        if arch.type == "ia64":
+            log.debug("vhpt          = %d", self.flags)
 
         return xc.linux_build(domid          = self.vm.getDomid(),
                               memsize        = mem_mb,
@@ -221,7 +224,8 @@ class LinuxImageHandler(ImageHandler):
                               console_evtchn = console_evtchn,
                               cmdline        = self.cmdline,
                               ramdisk        = self.ramdisk,
-                              features       = self.vm.getFeatures())
+                              features       = self.vm.getFeatures(),
+                              flags          = self.flags)
 
 class PPC_LinuxImageHandler(LinuxImageHandler):
 
@@ -500,8 +504,13 @@ class HVMImageHandler(ImageHandler):
 
 class IA64_HVM_ImageHandler(HVMImageHandler):
 
+    def configure(self, vmConfig):
+        HVMImageHandler.configure(self, vmConfig)
+        self.vhpt = int(vmConfig['platform'].get('vhpt',  0))
+
     def buildDomain(self):
         xc.nvram_init(self.vm.getName(), self.vm.getDomid())
+        xc.hvm_set_param(self.vm.getDomid(), HVM_PARAM_VHPT_SIZE, self.vhpt)
         return HVMImageHandler.buildDomain(self)
 
     def getRequiredAvailableMemory(self, mem_kb):
@@ -518,6 +527,16 @@ class IA64_HVM_ImageHandler(HVMImageHandler):
         # Explicit shadow memory is not a concept 
         return 0
 
+class IA64_Linux_ImageHandler(LinuxImageHandler):
+
+    def configure(self, vmConfig):
+        LinuxImageHandler.configure(self, vmConfig)
+        self.vhpt = int(vmConfig['platform'].get('vhpt',  0))
+
+    def buildDomain(self):
+        self.flags = self.vhpt
+        return LinuxImageHandler.buildDomain(self)
+
 class X86_HVM_ImageHandler(HVMImageHandler):
 
     def configure(self, vmConfig):
@@ -562,7 +581,7 @@ _handlers = {
         "linux": PPC_LinuxImageHandler,
     },
     "ia64": {
-        "linux": LinuxImageHandler,
+        "linux": IA64_Linux_ImageHandler,
         "hvm": IA64_HVM_ImageHandler,
     },
     "x86": {

tools/python/xen/xm/create.py

@@ -210,6 +210,10 @@ gopts.var('vcpu_avail', val='VCPUS',
           fn=set_long, default=None,
           use="Bitmask for virtual CPUs to make available immediately.")
 
+gopts.var('vhpt', val='VHPT',
+          fn=set_int, default=0,
+          use="Log2 of domain VHPT size for IA64.")
+
 gopts.var('cpu_cap', val='CAP',
           fn=set_int, default=None,
           use="""Set the maximum amount of cpu.
@@ -555,7 +559,10 @@ def configure_image(vals):
 
     if vals.builder == 'hvm':
         configure_hvm(config_image, vals) 
-       
+
+    if vals.vhpt != 0:
+        config_image.append(['vhpt', vals.vhpt])
+
     return config_image
     
 def configure_disks(config_devs, vals):

tools/python/xen/xm/xenapi_create.py

@@ -818,7 +818,7 @@ class sxp2xml:
 
 
     def extract_platform(self, image, document):
-        platform_keys = ['acpi', 'apic', 'pae']
+        platform_keys = ['acpi', 'apic', 'pae', 'vhpt']
 
         def extract_platform_key(key):
             platform = document.createElement("platform")

xen/include/public/domctl.h

@@ -380,6 +380,7 @@ typedef struct xen_domctl_arch_setup {
     uint64_aligned_t maxmem; /* Highest memory address for MDT.  */
     uint64_aligned_t xsi_va; /* Xen shared_info area virtual address.  */
     uint32_t hypercall_imm;  /* Break imm for Xen hypercalls.  */
+    int8_t vhpt_size_log2;   /* Log2 of VHPT size. */
 #endif
 } xen_domctl_arch_setup_t;
 DEFINE_XEN_GUEST_HANDLE(xen_domctl_arch_setup_t);

xen/include/public/hvm/params.h

@@ -52,7 +52,8 @@
 
 #ifdef __ia64__
 #define HVM_PARAM_NVRAM_FD     7
-#define HVM_NR_PARAMS          8
+#define HVM_PARAM_VHPT_SIZE    8
+#define HVM_NR_PARAMS          9
 #else
 #define HVM_NR_PARAMS          7
 #endif