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List:       xen-ppc-devel
Subject:    [XenPPC] [PATCH 6 of 6] [PATCH] tools/libxc: change ppc
From:       Ryan Harper <ryanh () us ! ibm ! com>
Date:       2007-02-21 23:17:04
Message-ID: 4a00d1da032210b39d80.1172103424 () localhost ! localdomain
[Download RAW message or body]

1 files changed, 32 insertions(+), 5 deletions(-)
tools/libxc/powerpc64/xc_linux_build.c |   37 +++++++++++++++++++++++++++-----


# HG changeset patch
# User Ryan Harper <ryanh@us.ibm.com>
# Date 1172103252 21600
# Node ID 4a00d1da032210b39d80bdfff4d5f4b63c94d802
# Parent  82803360d949f547abfd7601177ecd836e492e36
[PATCH] tools/libxc: change ppc xc_linux_build to use populate_physmap()

Signed-off-by: Ryan Harper <ryanh@us.ibm.com>

diff -r 82803360d949 -r 4a00d1da0322 tools/libxc/powerpc64/xc_linux_build.c
--- a/tools/libxc/powerpc64/xc_linux_build.c	Wed Feb 21 18:14:12 2007 -0600
+++ b/tools/libxc/powerpc64/xc_linux_build.c	Wed Feb 21 18:14:12 2007 -0600
@@ -166,6 +166,7 @@ int xc_linux_build(int xc_handle,
 {
     struct domain_setup_info dsi;
     xen_pfn_t *page_array = NULL;
+    xen_pfn_t *ext_array = NULL;
     unsigned long nr_pages;
     unsigned long devtree_addr = 0;
     unsigned long kern_addr;
@@ -182,6 +183,8 @@ int xc_linux_build(int xc_handle,
     int rma_log = 26;  /* 64MB RMA */
     int rc = 0;
     int op;
+    int i;
+    int j;
     struct ft_cxt devtree;
 
     DPRINTF("%s\n", __func__);
@@ -219,11 +222,34 @@ int xc_linux_build(int xc_handle,
             (((1 << extent_order) >> 10) * PAGE_SIZE) >> 10);
 
     /* now allocate the remaining memory as large-order allocations */
-    DPRINTF("increase_reservation(%u, %llu, %u)\n", domid, nr_extents, extent_order);
-    if (xc_domain_memory_increase_reservation(xc_handle, domid, nr_extents, 
-                                              extent_order, 0, NULL)) {
-        rc = -1;
-        goto out;
+    for ( i = 0; i < nr_extents; i++ ) {
+        /* all extents are of the same size, alloc array once can re-use */
+        if ( ext_array == NULL ) {
+            if ((ext_array = malloc((1<<extent_order)*sizeof(xen_pfn_t))) == NULL) {
+                PERROR("Couldn't allocate memory for extent allocation\n");
+                rc = 1;
+                goto out;
+            }
+        }
+
+        /* initialize the extent array with pfn values.  The
+           starting pfn is based on which extent past the RMA
+           we are using.
+           rma_pages is the starting pfn base
+           (i*(1<<extent_order)) will offset into the proper extent */
+        for ( j = 0; j < (1 << extent_order); j++ )
+            ext_array[j] = rma_pages + (i*(1 << extent_order)) + j;
+
+        DPRINTF("populate_physmap(DOM%u, order %u, starting_pfn %llx)\n",
+                domid, extent_order, ext_array[0]);
+
+        if ( xc_domain_memory_populate_physmap(xc_handle, domid, 1, extent_order,
+                                               0, ext_array) )
+        {
+            PERROR("Could not allocate extents\n");
+            rc = -1;
+            goto out;
+        }
     }
 
     if (get_rma_page_array(xc_handle, domid, &page_array, rma_pages)) {
@@ -297,5 +323,6 @@ out:
 out:
     free_devtree(&devtree);
     free_page_array(page_array);
+    free_page_array(ext_array);
     return rc;
 }

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