# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1252309987 -3600
# Node ID 7422afed66ee9a48c1ab68a98ecaecff5de70eaf
# Parent 620e565387253a0d6bf0df999ef95c9ae4b7611b
xend: Revert c/s 17536 which breaks PV passthru of MSI-X devices.
Signed-off-by: Keir Fraser <keir.fraser@xxxxxxxxxx>
xen-unstable changeset: 20171:55ef198e63c7
xen-unstable date: Mon Sep 07 08:48:12 2009 +0100
---
tools/python/xen/util/pci.py | 18 ------------------
tools/python/xen/xend/server/pciif.py | 13 -------------
2 files changed, 31 deletions(-)
diff -r 620e56538725 -r 7422afed66ee tools/python/xen/util/pci.py
--- a/tools/python/xen/util/pci.py Mon Sep 07 08:52:42 2009 +0100
+++ b/tools/python/xen/util/pci.py Mon Sep 07 08:53:07 2009 +0100
@@ -841,20 +841,6 @@ class PciDevice:
raise PciDeviceParseError(('Failed to locate sysfs mount: %s: %s
(%d)' %
(PROC_PCI_PATH, strerr, errno)))
- def remove_msix_iomem(self, index, start, size):
- if (index == self.table_index):
- table_start = start+self.table_offset
- table_end = table_start + self.msix_entries * 16
- table_start = table_start & PAGE_MASK
- table_end = (table_end + PAGE_SIZE) & PAGE_MASK
- self.msix_iomem.append((table_start, table_end-table_start))
- if (index==self.pba_index):
- pba_start = start + self.pba_offset
- pba_end = pba_start + self.msix_entries/8
- pba_start = pba_start & PAGE_MASK
- pba_end = (pba_end + PAGE_SIZE) & PAGE_MASK
- self.msix_iomem.append((pba_start, pba_end-pba_start))
-
def get_info_from_sysfs(self):
self.find_capability(0x11)
sysfs_mnt = find_sysfs_mnt()
@@ -882,10 +868,6 @@ class PciDevice:
self.ioports.append( (start,size) )
else:
self.iomem.append( (start,size) )
- if (self.msix):
- self.remove_msix_iomem(i, start, size)
-
-
except IOError, (errno, strerr):
raise PciDeviceParseError(('Failed to open & read %s: %s (%d)' %
diff -r 620e56538725 -r 7422afed66ee tools/python/xen/xend/server/pciif.py
--- a/tools/python/xen/xend/server/pciif.py Mon Sep 07 08:52:42 2009 +0100
+++ b/tools/python/xen/xend/server/pciif.py Mon Sep 07 08:53:07 2009 +0100
@@ -355,19 +355,6 @@ class PciController(DevController):
if rc<0:
raise VmError(('pci: failed to configure I/O memory on device
'+
'%s - errno=%d')%(dev.name,rc))
-
- if dev.msix:
- for (start, size) in dev.msix_iomem:
- start_pfn = start>>PAGE_SHIFT
- nr_pfns = (size+(PAGE_SIZE-1))>>PAGE_SHIFT
- log.debug('pci-msix: remove permission for 0x%x/0x%x
0x%x/0x%x' % \
- (start,size, start_pfn, nr_pfns))
- rc = xc.domain_iomem_permission(domid = fe_domid,
- first_pfn = start_pfn,
- nr_pfns = nr_pfns,
- allow_access = False)
- if rc<0:
- raise VmError(('pci: failed to remove msi-x iomem'))
if not self.vm.info.is_hvm() and dev.irq:
rc = xc.physdev_map_pirq(domid = fe_domid,
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