Merge tag 'stable/for-linus-3.7-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

Pull xen bug-fixes from Konrad Rzeszutek Wilk:
 - Fix mysterious SIGSEGV or SIGKILL in applications due to corrupting
   of the %eip when returning from a signal handler.
 - Fix various ARM compile issues after the merge fallout.
 - Continue on making more of the Xen generic code usable by ARM
   platform.
 - Fix SR-IOV passthrough to mirror multifunction PCI devices.
 - Fix various compile warnings.
 - Remove hypercalls that don't exist anymore.

* tag 'stable/for-linus-3.7-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen: dbgp: Fix warning when CONFIG_PCI is not enabled.
  xen: arm: comment on why 64-bit xen_pfn_t is safe even on 32 bit
  xen: balloon: use correct type for frame_list
  xen/x86: don't corrupt %eip when returning from a signal handler
  xen: arm: make p2m operations NOPs
  xen: balloon: don't include e820.h
  xen: grant: use xen_pfn_t type for frame_list.
  xen: events: pirq_check_eoi_map is X86 specific
  xen: XENMEM_translate_gpfn_list was remove ages ago and is unused.
  xen: sysfs: fix build warning.
  xen: sysfs: include err.h for PTR_ERR etc
  xen: xenbus: quirk uses x86 specific cpuid
  xen PV passthru: assign SR-IOV virtual functions to separate virtual slots
  xen/xenbus: Fix compile warning.
  xen/x86: remove duplicated include from enlighten.c

7 files changed, 26 insertions, 11 deletions

diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 31ab82fda38a..d6886d90ccfd 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -55,7 +55,6 @@
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
 #include <asm/tlb.h>
-#include <asm/e820.h>
 
 #include <asm/xen/hypervisor.h>
 #include <asm/xen/hypercall.h>
@@ -88,7 +87,7 @@ struct balloon_stats balloon_stats;
 EXPORT_SYMBOL_GPL(balloon_stats);
 
 /* We increase/decrease in batches which fit in a page */
-static unsigned long frame_list[PAGE_SIZE / sizeof(unsigned long)];
+static xen_pfn_t frame_list[PAGE_SIZE / sizeof(unsigned long)];
 
 #ifdef CONFIG_HIGHMEM
 #define inc_totalhigh_pages() (totalhigh_pages++)
diff --git a/drivers/xen/dbgp.c b/drivers/xen/dbgp.c
index 42569c77ccc8..f3ccc80a455f 100644
--- a/drivers/xen/dbgp.c
+++ b/drivers/xen/dbgp.c
@@ -8,7 +8,9 @@
 
 static int xen_dbgp_op(struct usb_hcd *hcd, int op)
 {
+#ifdef CONFIG_PCI
         const struct device *ctrlr = hcd_to_bus(hcd)->controller;
+#endif
         struct physdev_dbgp_op dbgp;
 
         if (!xen_initial_domain())
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 59e10a1286d5..912ac81b6dbf 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -115,7 +115,9 @@ struct irq_info {
 #define PIRQ_SHAREABLE  (1 << 1)
 
 static int *evtchn_to_irq;
+#ifdef CONFIG_X86
 static unsigned long *pirq_eoi_map;
+#endif
 static bool (*pirq_needs_eoi)(unsigned irq);
 
 static DEFINE_PER_CPU(unsigned long [NR_EVENT_CHANNELS/BITS_PER_LONG],
@@ -277,10 +279,12 @@ static unsigned int cpu_from_evtchn(unsigned int evtchn)
         return ret;
 }
 
+#ifdef CONFIG_X86
 static bool pirq_check_eoi_map(unsigned irq)
 {
         return test_bit(pirq_from_irq(irq), pirq_eoi_map);
 }
+#endif
 
 static bool pirq_needs_eoi_flag(unsigned irq)
 {
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index b2b0a375b348..b91f14e83164 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -84,7 +84,7 @@ struct gnttab_ops {
          * nr_gframes is the number of frames to map grant table. Returning
          * GNTST_okay means success and negative value means failure.
          */
-        int (*map_frames)(unsigned long *frames, unsigned int nr_gframes);
+        int (*map_frames)(xen_pfn_t *frames, unsigned int nr_gframes);
         /*
          * Release a list of frames which are mapped in map_frames for grant
          * entry status.
@@ -960,7 +960,7 @@ static unsigned nr_status_frames(unsigned nr_grant_frames)
         return (nr_grant_frames * GREFS_PER_GRANT_FRAME + SPP - 1) / SPP;
 }
 
-static int gnttab_map_frames_v1(unsigned long *frames, unsigned int nr_gframes)
+static int gnttab_map_frames_v1(xen_pfn_t *frames, unsigned int nr_gframes)
 {
         int rc;
 
@@ -977,7 +977,7 @@ static void gnttab_unmap_frames_v1(void)
         arch_gnttab_unmap(gnttab_shared.addr, nr_grant_frames);
 }
 
-static int gnttab_map_frames_v2(unsigned long *frames, unsigned int nr_gframes)
+static int gnttab_map_frames_v2(xen_pfn_t *frames, unsigned int nr_gframes)
 {
         uint64_t *sframes;
         unsigned int nr_sframes;
@@ -1029,7 +1029,7 @@ static void gnttab_unmap_frames_v2(void)
 static int gnttab_map(unsigned int start_idx, unsigned int end_idx)
 {
         struct gnttab_setup_table setup;
-        unsigned long *frames;
+        xen_pfn_t *frames;
         unsigned int nr_gframes = end_idx + 1;
         int rc;
 
diff --git a/drivers/xen/sys-hypervisor.c b/drivers/xen/sys-hypervisor.c
index 5e5ad7e28858..96453f8a85c5 100644
--- a/drivers/xen/sys-hypervisor.c
+++ b/drivers/xen/sys-hypervisor.c
@@ -11,6 +11,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/kobject.h>
+#include <linux/err.h>
 
 #include <asm/xen/hypervisor.h>
 #include <asm/xen/hypercall.h>
@@ -284,7 +285,8 @@ static ssize_t virtual_start_show(struct hyp_sysfs_attr *attr, char *buffer)
                 ret = HYPERVISOR_xen_version(XENVER_platform_parameters,
                                              parms);
                 if (!ret)
-                        ret = sprintf(buffer, "%lx\n", parms->virt_start);
+                        ret = sprintf(buffer, "%"PRI_xen_ulong"\n",
+                                      parms->virt_start);
                 kfree(parms);
         }
 
diff --git a/drivers/xen/xen-pciback/vpci.c b/drivers/xen/xen-pciback/vpci.c
index 46d140baebd8..0f478ac483cd 100644
--- a/drivers/xen/xen-pciback/vpci.c
+++ b/drivers/xen/xen-pciback/vpci.c
@@ -89,9 +89,15 @@ static int __xen_pcibk_add_pci_dev(struct xen_pcibk_device *pdev,
 
         mutex_lock(&vpci_dev->lock);
 
-        /* Keep multi-function devices together on the virtual PCI bus */
-        for (slot = 0; slot < PCI_SLOT_MAX; slot++) {
-                if (!list_empty(&vpci_dev->dev_list[slot])) {
+        /*
+         * Keep multi-function devices together on the virtual PCI bus, except
+         * virtual functions.
+         */
+        if (!dev->is_virtfn) {
+                for (slot = 0; slot < PCI_SLOT_MAX; slot++) {
+                        if (list_empty(&vpci_dev->dev_list[slot]))
+                                continue;
+
                         t = list_entry(list_first(&vpci_dev->dev_list[slot]),
                                        struct pci_dev_entry, list);
 
@@ -116,7 +122,7 @@ static int __xen_pcibk_add_pci_dev(struct xen_pcibk_device *pdev,
                                pci_name(dev), slot);
                         list_add_tail(&dev_entry->list,
                                       &vpci_dev->dev_list[slot]);
-                        func = PCI_FUNC(dev->devfn);
+                        func = dev->is_virtfn ? 0 : PCI_FUNC(dev->devfn);
                         goto unlock;
                 }
         }
diff --git a/drivers/xen/xenbus/xenbus_xs.c b/drivers/xen/xenbus/xenbus_xs.c
index f5dda83ad7a5..acedeabe589c 100644
--- a/drivers/xen/xenbus/xenbus_xs.c
+++ b/drivers/xen/xenbus/xenbus_xs.c
@@ -627,6 +627,7 @@ static struct xenbus_watch *find_watch(const char *token)
  */
 static bool xen_strict_xenbus_quirk(void)
 {
+#ifdef CONFIG_X86
         uint32_t eax, ebx, ecx, edx, base;
 
         base = xen_cpuid_base();
@@ -634,6 +635,7 @@ static bool xen_strict_xenbus_quirk(void)
 
         if ((eax >> 16) < 4)
                 return true;
+#endif
         return false;
 
 }