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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v7 11/21] libxc: indentation change to xc_hvm_build_x86.c
Move a while loop in xc_hvm_build_x86 one block to the right. No
functional change introduced.
Functional changes will be introduced in next patch.
Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Cc: Dario Faggioli <dario.faggioli@xxxxxxxxxx>
Cc: Elena Ufimtseva <ufimtseva@xxxxxxxxx>
Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
tools/libxc/xc_hvm_build_x86.c | 153 ++++++++++++++++++++++-------------------
1 file changed, 81 insertions(+), 72 deletions(-)
diff --git a/tools/libxc/xc_hvm_build_x86.c b/tools/libxc/xc_hvm_build_x86.c
index c81a25b..ecc3224 100644
--- a/tools/libxc/xc_hvm_build_x86.c
+++ b/tools/libxc/xc_hvm_build_x86.c
@@ -353,98 +353,107 @@ static int setup_guest(xc_interface *xch,
cur_pages = 0xc0;
stat_normal_pages = 0xc0;
- while ( (rc == 0) && (nr_pages > cur_pages) )
{
- /* Clip count to maximum 1GB extent. */
- unsigned long count = nr_pages - cur_pages;
- unsigned long max_pages = SUPERPAGE_1GB_NR_PFNS;
-
- if ( count > max_pages )
- count = max_pages;
-
- cur_pfn = page_array[cur_pages];
-
- /* Take care the corner cases of super page tails */
- if ( ((cur_pfn & (SUPERPAGE_1GB_NR_PFNS-1)) != 0) &&
- (count > (-cur_pfn & (SUPERPAGE_1GB_NR_PFNS-1))) )
- count = -cur_pfn & (SUPERPAGE_1GB_NR_PFNS-1);
- else if ( ((count & (SUPERPAGE_1GB_NR_PFNS-1)) != 0) &&
- (count > SUPERPAGE_1GB_NR_PFNS) )
- count &= ~(SUPERPAGE_1GB_NR_PFNS - 1);
-
- /* Attemp to allocate 1GB super page. Because in each pass we only
- * allocate at most 1GB, we don't have to clip super page boundaries.
- */
- if ( ((count | cur_pfn) & (SUPERPAGE_1GB_NR_PFNS - 1)) == 0 &&
- /* Check if there exists MMIO hole in the 1GB memory range */
- !check_mmio_hole(cur_pfn << PAGE_SHIFT,
- SUPERPAGE_1GB_NR_PFNS << PAGE_SHIFT,
- mmio_start, mmio_size) )
+ while ( (rc == 0) && (nr_pages > cur_pages) )
{
- long done;
- unsigned long nr_extents = count >> SUPERPAGE_1GB_SHIFT;
- xen_pfn_t sp_extents[nr_extents];
-
- for ( i = 0; i < nr_extents; i++ )
- sp_extents[i] = page_array[cur_pages+(i<<SUPERPAGE_1GB_SHIFT)];
-
- done = xc_domain_populate_physmap(xch, dom, nr_extents,
SUPERPAGE_1GB_SHIFT,
- pod_mode, sp_extents);
-
- if ( done > 0 )
- {
- stat_1gb_pages += done;
- done <<= SUPERPAGE_1GB_SHIFT;
- cur_pages += done;
- count -= done;
- }
- }
+ /* Clip count to maximum 1GB extent. */
+ unsigned long count = nr_pages - cur_pages;
+ unsigned long max_pages = SUPERPAGE_1GB_NR_PFNS;
- if ( count != 0 )
- {
- /* Clip count to maximum 8MB extent. */
- max_pages = SUPERPAGE_2MB_NR_PFNS * 4;
if ( count > max_pages )
count = max_pages;
-
- /* Clip partial superpage extents to superpage boundaries. */
- if ( ((cur_pfn & (SUPERPAGE_2MB_NR_PFNS-1)) != 0) &&
- (count > (-cur_pfn & (SUPERPAGE_2MB_NR_PFNS-1))) )
- count = -cur_pfn & (SUPERPAGE_2MB_NR_PFNS-1);
- else if ( ((count & (SUPERPAGE_2MB_NR_PFNS-1)) != 0) &&
- (count > SUPERPAGE_2MB_NR_PFNS) )
- count &= ~(SUPERPAGE_2MB_NR_PFNS - 1); /* clip non-s.p. tail */
-
- /* Attempt to allocate superpage extents. */
- if ( ((count | cur_pfn) & (SUPERPAGE_2MB_NR_PFNS - 1)) == 0 )
+
+ cur_pfn = page_array[cur_pages];
+
+ /* Take care the corner cases of super page tails */
+ if ( ((cur_pfn & (SUPERPAGE_1GB_NR_PFNS-1)) != 0) &&
+ (count > (-cur_pfn & (SUPERPAGE_1GB_NR_PFNS-1))) )
+ count = -cur_pfn & (SUPERPAGE_1GB_NR_PFNS-1);
+ else if ( ((count & (SUPERPAGE_1GB_NR_PFNS-1)) != 0) &&
+ (count > SUPERPAGE_1GB_NR_PFNS) )
+ count &= ~(SUPERPAGE_1GB_NR_PFNS - 1);
+
+ /* Attemp to allocate 1GB super page. Because in each pass
+ * we only allocate at most 1GB, we don't have to clip
+ * super page boundaries.
+ */
+ if ( ((count | cur_pfn) & (SUPERPAGE_1GB_NR_PFNS - 1)) == 0 &&
+ /* Check if there exists MMIO hole in the 1GB memory
+ * range */
+ !check_mmio_hole(cur_pfn << PAGE_SHIFT,
+ SUPERPAGE_1GB_NR_PFNS << PAGE_SHIFT,
+ mmio_start, mmio_size) )
{
long done;
- unsigned long nr_extents = count >> SUPERPAGE_2MB_SHIFT;
+ unsigned long nr_extents = count >> SUPERPAGE_1GB_SHIFT;
xen_pfn_t sp_extents[nr_extents];
for ( i = 0; i < nr_extents; i++ )
- sp_extents[i] =
page_array[cur_pages+(i<<SUPERPAGE_2MB_SHIFT)];
+ sp_extents[i] =
+ page_array[cur_pages+(i<<SUPERPAGE_1GB_SHIFT)];
- done = xc_domain_populate_physmap(xch, dom, nr_extents,
SUPERPAGE_2MB_SHIFT,
+ done = xc_domain_populate_physmap(xch, dom, nr_extents,
+ SUPERPAGE_1GB_SHIFT,
pod_mode, sp_extents);
if ( done > 0 )
{
- stat_2mb_pages += done;
- done <<= SUPERPAGE_2MB_SHIFT;
+ stat_1gb_pages += done;
+ done <<= SUPERPAGE_1GB_SHIFT;
cur_pages += done;
count -= done;
}
}
- }
- /* Fall back to 4kB extents. */
- if ( count != 0 )
- {
- rc = xc_domain_populate_physmap_exact(
- xch, dom, count, 0, pod_mode, &page_array[cur_pages]);
- cur_pages += count;
- stat_normal_pages += count;
+ if ( count != 0 )
+ {
+ /* Clip count to maximum 8MB extent. */
+ max_pages = SUPERPAGE_2MB_NR_PFNS * 4;
+ if ( count > max_pages )
+ count = max_pages;
+
+ /* Clip partial superpage extents to superpage
+ * boundaries. */
+ if ( ((cur_pfn & (SUPERPAGE_2MB_NR_PFNS-1)) != 0) &&
+ (count > (-cur_pfn & (SUPERPAGE_2MB_NR_PFNS-1))) )
+ count = -cur_pfn & (SUPERPAGE_2MB_NR_PFNS-1);
+ else if ( ((count & (SUPERPAGE_2MB_NR_PFNS-1)) != 0) &&
+ (count > SUPERPAGE_2MB_NR_PFNS) )
+ count &= ~(SUPERPAGE_2MB_NR_PFNS - 1); /* clip non-s.p.
tail */
+
+ /* Attempt to allocate superpage extents. */
+ if ( ((count | cur_pfn) & (SUPERPAGE_2MB_NR_PFNS - 1)) == 0 )
+ {
+ long done;
+ unsigned long nr_extents = count >> SUPERPAGE_2MB_SHIFT;
+ xen_pfn_t sp_extents[nr_extents];
+
+ for ( i = 0; i < nr_extents; i++ )
+ sp_extents[i] =
+ page_array[cur_pages+(i<<SUPERPAGE_2MB_SHIFT)];
+
+ done = xc_domain_populate_physmap(xch, dom, nr_extents,
+ SUPERPAGE_2MB_SHIFT,
+ pod_mode, sp_extents);
+
+ if ( done > 0 )
+ {
+ stat_2mb_pages += done;
+ done <<= SUPERPAGE_2MB_SHIFT;
+ cur_pages += done;
+ count -= done;
+ }
+ }
+ }
+
+ /* Fall back to 4kB extents. */
+ if ( count != 0 )
+ {
+ rc = xc_domain_populate_physmap_exact(
+ xch, dom, count, 0, pod_mode, &page_array[cur_pages]);
+ cur_pages += count;
+ stat_normal_pages += count;
+ }
}
}
--
1.9.1
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