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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] Initialize the xenstore MFN for VMX domains
# HG changeset patch
# User cl349@xxxxxxxxxxxxxxxxxxxx
# Node ID 66b81b6c096c57a5ca0da825d4da15d98e31a954
# Parent 5a683386dc5839aa453961fdc67affb3a067949e
Initialize the xenstore MFN for VMX domains
Signed-off-by: Arun Sharma <arun.sharma@xxxxxxxxx>
Signed-off-by: Christian Limpach <Christian.Limpach@xxxxxxxxxxxx>
diff -r 5a683386dc58 -r 66b81b6c096c tools/libxc/linux_boot_params.h
--- a/tools/libxc/linux_boot_params.h Tue Aug 9 16:26:19 2005
+++ b/tools/libxc/linux_boot_params.h Wed Aug 10 08:44:58 2005
@@ -17,6 +17,7 @@
#define E820_NVS 4
#define E820_IO 16
#define E820_SHARED 17
+#define E820_XENSTORE 18
u32 caching_attr; /* used by hypervisor */
#define MEMMAP_UC 0
diff -r 5a683386dc58 -r 66b81b6c096c tools/libxc/xc.h
--- a/tools/libxc/xc.h Tue Aug 9 16:26:19 2005
+++ b/tools/libxc/xc.h Wed Aug 10 08:44:58 2005
@@ -306,7 +306,10 @@
const char *ramdisk_name,
const char *cmdline,
unsigned int control_evtchn,
- unsigned long flags);
+ unsigned long flags,
+ unsigned int vcpus,
+ unsigned int store_evtchn,
+ unsigned long *store_mfn);
int xc_bvtsched_global_set(int xc_handle,
unsigned long ctx_allow);
diff -r 5a683386dc58 -r 66b81b6c096c tools/libxc/xc_vmx_build.c
--- a/tools/libxc/xc_vmx_build.c Tue Aug 9 16:26:19 2005
+++ b/tools/libxc/xc_vmx_build.c Wed Aug 10 08:44:58 2005
@@ -37,58 +37,70 @@
int nr_map = 0;
/* XXX: Doesn't work for > 4GB yet */
- mem_mapp->map[0].addr = 0x0;
- mem_mapp->map[0].size = 0x9F800;
- mem_mapp->map[0].type = E820_RAM;
- mem_mapp->map[0].caching_attr = MEMMAP_WB;
+ mem_mapp->map[nr_map].addr = 0x0;
+ mem_mapp->map[nr_map].size = 0x9F800;
+ mem_mapp->map[nr_map].type = E820_RAM;
+ mem_mapp->map[nr_map].caching_attr = MEMMAP_WB;
nr_map++;
- mem_mapp->map[1].addr = 0x9F800;
- mem_mapp->map[1].size = 0x800;
- mem_mapp->map[1].type = E820_RESERVED;
- mem_mapp->map[1].caching_attr = MEMMAP_UC;
+ mem_mapp->map[nr_map].addr = 0x9F800;
+ mem_mapp->map[nr_map].size = 0x800;
+ mem_mapp->map[nr_map].type = E820_RESERVED;
+ mem_mapp->map[nr_map].caching_attr = MEMMAP_UC;
nr_map++;
- mem_mapp->map[2].addr = 0xA0000;
- mem_mapp->map[2].size = 0x20000;
- mem_mapp->map[2].type = E820_IO;
- mem_mapp->map[2].caching_attr = MEMMAP_UC;
+ mem_mapp->map[nr_map].addr = 0xA0000;
+ mem_mapp->map[nr_map].size = 0x20000;
+ mem_mapp->map[nr_map].type = E820_IO;
+ mem_mapp->map[nr_map].caching_attr = MEMMAP_UC;
nr_map++;
- mem_mapp->map[3].addr = 0xF0000;
- mem_mapp->map[3].size = 0x10000;
- mem_mapp->map[3].type = E820_RESERVED;
- mem_mapp->map[3].caching_attr = MEMMAP_UC;
+ mem_mapp->map[nr_map].addr = 0xF0000;
+ mem_mapp->map[nr_map].size = 0x10000;
+ mem_mapp->map[nr_map].type = E820_RESERVED;
+ mem_mapp->map[nr_map].caching_attr = MEMMAP_UC;
nr_map++;
- mem_mapp->map[4].addr = 0x100000;
- mem_mapp->map[4].size = mem_size - 0x100000 - PAGE_SIZE;
- mem_mapp->map[4].type = E820_RAM;
- mem_mapp->map[4].caching_attr = MEMMAP_WB;
+#define STATIC_PAGES 2 /* for ioreq_t and store_mfn */
+ /* Most of the ram goes here */
+ mem_mapp->map[nr_map].addr = 0x100000;
+ mem_mapp->map[nr_map].size = mem_size - 0x100000 - STATIC_PAGES*PAGE_SIZE;
+ mem_mapp->map[nr_map].type = E820_RAM;
+ mem_mapp->map[nr_map].caching_attr = MEMMAP_WB;
nr_map++;
- mem_mapp->map[5].addr = mem_size - PAGE_SIZE;
- mem_mapp->map[5].size = PAGE_SIZE;
- mem_mapp->map[5].type = E820_SHARED;
- mem_mapp->map[5].caching_attr = MEMMAP_WB;
+ /* Statically allocated special pages */
+
+ /* Shared ioreq_t page */
+ mem_mapp->map[nr_map].addr = mem_size - PAGE_SIZE;
+ mem_mapp->map[nr_map].size = PAGE_SIZE;
+ mem_mapp->map[nr_map].type = E820_SHARED;
+ mem_mapp->map[nr_map].caching_attr = MEMMAP_WB;
nr_map++;
- mem_mapp->map[6].addr = mem_size;
- mem_mapp->map[6].size = 0x3 * PAGE_SIZE;
- mem_mapp->map[6].type = E820_NVS;
- mem_mapp->map[6].caching_attr = MEMMAP_UC;
+ /* For xenstore */
+ mem_mapp->map[nr_map].addr = mem_size - 2*PAGE_SIZE;
+ mem_mapp->map[nr_map].size = PAGE_SIZE;
+ mem_mapp->map[nr_map].type = E820_XENSTORE;
+ mem_mapp->map[nr_map].caching_attr = MEMMAP_WB;
nr_map++;
- mem_mapp->map[7].addr = mem_size + 0x3 * PAGE_SIZE;
- mem_mapp->map[7].size = 0xA * PAGE_SIZE;
- mem_mapp->map[7].type = E820_ACPI;
- mem_mapp->map[7].caching_attr = MEMMAP_WB;
+ mem_mapp->map[nr_map].addr = mem_size;
+ mem_mapp->map[nr_map].size = 0x3 * PAGE_SIZE;
+ mem_mapp->map[nr_map].type = E820_NVS;
+ mem_mapp->map[nr_map].caching_attr = MEMMAP_UC;
nr_map++;
- mem_mapp->map[8].addr = 0xFEC00000;
- mem_mapp->map[8].size = 0x1400000;
- mem_mapp->map[8].type = E820_IO;
- mem_mapp->map[8].caching_attr = MEMMAP_UC;
+ mem_mapp->map[nr_map].addr = mem_size + 0x3 * PAGE_SIZE;
+ mem_mapp->map[nr_map].size = 0xA * PAGE_SIZE;
+ mem_mapp->map[nr_map].type = E820_ACPI;
+ mem_mapp->map[nr_map].caching_attr = MEMMAP_WB;
+ nr_map++;
+
+ mem_mapp->map[nr_map].addr = 0xFEC00000;
+ mem_mapp->map[nr_map].size = 0x1400000;
+ mem_mapp->map[nr_map].type = E820_IO;
+ mem_mapp->map[nr_map].caching_attr = MEMMAP_UC;
nr_map++;
mem_mapp->nr_map = nr_map;
@@ -212,7 +224,11 @@
unsigned long shared_info_frame,
unsigned int control_evtchn,
unsigned long flags,
- struct mem_map * mem_mapp)
+ unsigned int vcpus,
+ unsigned int store_evtchn,
+ unsigned long *store_mfn,
+ struct mem_map *mem_mapp
+ )
{
l1_pgentry_t *vl1tab=NULL, *vl1e=NULL;
l2_pgentry_t *vl2tab=NULL, *vl2e=NULL;
@@ -510,7 +526,10 @@
boot_paramsp->drive_info.dummy[14] = 32;
/* memsize is in megabytes */
+ /* If you need to create a special e820map, comment this line
+ and use mem-map.sxp */
build_e820map(mem_mapp, memsize << 20);
+ *store_mfn = page_array[(v_end-2) >> PAGE_SHIFT];
#if defined (__i386__)
if (zap_mmio_ranges(xc_handle, dom, l2tab, mem_mapp) == -1)
#else
@@ -637,7 +656,10 @@
const char *ramdisk_name,
const char *cmdline,
unsigned int control_evtchn,
- unsigned long flags)
+ unsigned long flags,
+ unsigned int vcpus,
+ unsigned int store_evtchn,
+ unsigned long *store_mfn)
{
dom0_op_t launch_op, op;
int initrd_fd = -1;
@@ -712,7 +734,8 @@
initrd_gfd, initrd_size, nr_pages,
ctxt, cmdline,
op.u.getdomaininfo.shared_info_frame,
- control_evtchn, flags, mem_mapp) < 0 )
+ control_evtchn, flags, vcpus, store_evtchn, store_mfn,
+ mem_mapp) < 0 )
{
ERROR("Error constructing guest OS");
goto error_out;
diff -r 5a683386dc58 -r 66b81b6c096c tools/python/xen/lowlevel/xc/xc.c
--- a/tools/python/xen/lowlevel/xc/xc.c Tue Aug 9 16:26:19 2005
+++ b/tools/python/xen/lowlevel/xc/xc.c Wed Aug 10 08:44:58 2005
@@ -297,22 +297,23 @@
u32 dom;
char *image, *ramdisk = NULL, *cmdline = "";
PyObject *memmap;
- int control_evtchn, flags = 0;
+ int control_evtchn, store_evtchn;
+ int flags = 0, vcpus = 1;
int numItems, i;
int memsize;
struct mem_map mem_map;
-
- static char *kwd_list[] = { "dom", "control_evtchn",
- "memsize",
- "image", "memmap",
+ unsigned long store_mfn = 0;
+
+ static char *kwd_list[] = { "dom", "control_evtchn", "store_evtchn",
+ "memsize", "image", "memmap",
"ramdisk", "cmdline", "flags",
- NULL };
-
- if ( !PyArg_ParseTupleAndKeywords(args, kwds, "iiisO!|ssi", kwd_list,
- &dom, &control_evtchn,
+ "vcpus", NULL };
+
+ if ( !PyArg_ParseTupleAndKeywords(args, kwds, "iiiisO!|ssii", kwd_list,
+ &dom, &control_evtchn, &store_evtchn,
&memsize,
&image, &PyList_Type, &memmap,
- &ramdisk, &cmdline, &flags) )
+ &ramdisk, &cmdline, &flags, &vcpus) )
return NULL;
memset(&mem_map, 0, sizeof(mem_map));
@@ -321,7 +322,6 @@
/* get the number of lines passed to us */
numItems = PyList_Size(memmap) - 1; /* removing the line
containing "memmap" */
- printf ("numItems: %d\n", numItems);
mem_map.nr_map = numItems;
/* should raise an error here. */
@@ -365,11 +365,11 @@
}
if ( xc_vmx_build(xc->xc_handle, dom, memsize, image, &mem_map,
- ramdisk, cmdline, control_evtchn, flags) != 0 )
- return PyErr_SetFromErrno(xc_error);
-
- Py_INCREF(zero);
- return zero;
+ ramdisk, cmdline, control_evtchn, flags,
+ vcpus, store_evtchn, &store_mfn) != 0 )
+ return PyErr_SetFromErrno(xc_error);
+
+ return Py_BuildValue("{s:i}", "store_mfn", store_mfn);
}
static PyObject *pyxc_bvtsched_global_set(PyObject *self,
diff -r 5a683386dc58 -r 66b81b6c096c tools/python/xen/xend/image.py
--- a/tools/python/xen/xend/image.py Tue Aug 9 16:26:19 2005
+++ b/tools/python/xen/xend/image.py Wed Aug 10 08:44:58 2005
@@ -274,14 +274,24 @@
# Create an event channel
self.device_channel = channel.eventChannel(0, self.vm.getDomain())
log.info("VMX device model port: %d", self.device_channel.port2)
- return xc.vmx_build(dom = self.vm.getDomain(),
+ if self.vm.store_channel:
+ store_evtchn = self.vm.store_channel.port2
+ else:
+ store_evtchn = 0
+ ret = xc.vmx_build(dom = self.vm.getDomain(),
image = self.kernel,
control_evtchn = self.device_channel.port2,
+ store_evtchn = store_evtchn,
memsize = self.vm.memory,
memmap = self.memmap_value,
cmdline = self.cmdline,
ramdisk = self.ramdisk,
- flags = self.flags)
+ flags = self.flags,
+ vcpus = self.vm.vcpus)
+ if isinstance(ret, dict):
+ self.vm.store_mfn = ret.get('store_mfn')
+ return 0
+ return ret
def parseMemmap(self):
self.memmap = sxp.child_value(self.vm.config, "memmap")
@@ -387,7 +397,9 @@
(pid, status) = os.waitpid(self.pid, 0)
def getDomainMemory(self, mem_mb):
- return (mem_mb * 1024) + self.getPageTableSize(mem_mb)
+ # for ioreq_t and xenstore
+ static_pages = 2
+ return (mem_mb * 1024) + self.getPageTableSize(mem_mb) + 4 *
static_pages
def getPageTableSize(self, mem_mb):
"""Return the size of memory needed for 1:1 page tables for physical
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