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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 08/11] Allow xen platform pci device to be compiled as a module
Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
---
arch/x86/xen/enlighten.c | 2 ++
drivers/xen/events.c | 1 +
drivers/xen/grant-table.c | 6 +++++-
drivers/xen/manage.c | 14 +++++++++++---
drivers/xen/platform-pci.c | 1 +
drivers/xen/xenbus/xenbus_probe.c | 1 +
include/xen/platform_pci.h | 18 ++++--------------
7 files changed, 25 insertions(+), 18 deletions(-)
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 4b31a23..84b7a84 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -79,6 +79,7 @@ struct shared_info xen_dummy_shared_info;
void *xen_initial_gdt;
int xen_have_vector_callback;
+EXPORT_SYMBOL_GPL(xen_have_vector_callback);
int unplug;
/*
@@ -1278,6 +1279,7 @@ int xen_set_callback_via(uint64_t via)
a.value = via;
return HYPERVISOR_hvm_op(HVMOP_set_param, &a);
}
+EXPORT_SYMBOL_GPL(xen_set_callback_via);
void do_hvm_pv_evtchn_intr(void)
{
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 197ccbc..dc36943 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -686,6 +686,7 @@ void xen_hvm_evtchn_do_upcall(struct pt_regs *regs)
{
__xen_evtchn_do_upcall(regs);
}
+EXPORT_SYMBOL_GPL(xen_hvm_evtchn_do_upcall);
/* Rebind a new event channel to an existing irq. */
void rebind_evtchn_irq(int evtchn, int irq)
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 3b43013..741ffa2 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -54,6 +54,9 @@
#define GNTTAB_LIST_END 0xffffffff
#define GREFS_PER_GRANT_FRAME (PAGE_SIZE / sizeof(struct grant_entry))
+unsigned long (*alloc_xen_mmio_hook)(unsigned long len);
+EXPORT_SYMBOL_GPL(alloc_xen_mmio_hook);
+
static grant_ref_t **gnttab_list;
static unsigned int nr_grant_frames;
static unsigned int boot_max_nr_grant_frames;
@@ -512,7 +515,7 @@ int gnttab_resume(void)
return gnttab_map(0, nr_grant_frames - 1);
if (!hvm_pv_resume_frames) {
- hvm_pv_resume_frames = alloc_xen_mmio(PAGE_SIZE *
max_nr_gframes);
+ hvm_pv_resume_frames = alloc_xen_mmio_hook(PAGE_SIZE *
max_nr_gframes);
shared = ioremap(hvm_pv_resume_frames, PAGE_SIZE *
max_nr_gframes);
if (shared == NULL) {
printk(KERN_WARNING
@@ -598,6 +601,7 @@ int gnttab_init(void)
kfree(gnttab_list);
return -ENOMEM;
}
+EXPORT_SYMBOL_GPL(gnttab_init);
static int __devinit __gnttab_init(void)
{
diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c
index 3c7468c..6b911d0 100644
--- a/drivers/xen/manage.c
+++ b/drivers/xen/manage.c
@@ -32,6 +32,13 @@ enum shutdown_state {
SHUTDOWN_HALT = 4,
};
+void (*platform_pci_resume_hook)(void);
+EXPORT_SYMBOL_GPL(platform_pci_resume_hook);
+void (*platform_pci_disable_irq_hook)(void);
+EXPORT_SYMBOL_GPL(platform_pci_disable_irq_hook);
+void (*platform_pci_enable_irq_hook)(void);
+EXPORT_SYMBOL_GPL(platform_pci_enable_irq_hook);
+
/* Ignore multiple shutdown requests. */
static enum shutdown_state shutting_down = SHUTDOWN_INVALID;
@@ -50,7 +57,7 @@ static int xen_hvm_suspend(void *data)
if (!*cancelled) {
xen_irq_resume();
- platform_pci_resume();
+ platform_pci_resume_hook();
}
return 0;
@@ -125,7 +132,7 @@ static void do_hvm_suspend(void)
printk(KERN_DEBUG "suspending xenstore... ");
xenbus_suspend();
printk(KERN_DEBUG "xenstore suspended\n");
- platform_pci_disable_irq();
+ platform_pci_disable_irq_hook();
err = stop_machine(xen_hvm_suspend, &cancelled, cpumask_of(0));
if (err) {
@@ -133,7 +140,7 @@ static void do_hvm_suspend(void)
cancelled = 1;
}
- platform_pci_enable_irq();
+ platform_pci_enable_irq_hook();
if (!cancelled) {
xen_arch_resume();
@@ -353,5 +360,6 @@ int xen_setup_shutdown_event(void)
return 0;
}
+EXPORT_SYMBOL_GPL(xen_setup_shutdown_event);
subsys_initcall(__setup_shutdown_event);
diff --git a/drivers/xen/platform-pci.c b/drivers/xen/platform-pci.c
index 924654f..fed53e8 100644
--- a/drivers/xen/platform-pci.c
+++ b/drivers/xen/platform-pci.c
@@ -29,6 +29,7 @@
#include <xen/grant_table.h>
#include <xen/platform_pci.h>
+#include <xen/platform_pci.h>
#include <xen/interface/platform_pci.h>
#include <xen/xenbus.h>
#include <xen/events.h>
diff --git a/drivers/xen/xenbus/xenbus_probe.c
b/drivers/xen/xenbus/xenbus_probe.c
index 867cb9f..13b2b6e 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -883,6 +883,7 @@ int xenbus_probe_init(void)
out_error:
return err;
}
+EXPORT_SYMBOL_GPL(xenbus_probe_init);
postcore_initcall(__xenbus_probe_init);
diff --git a/include/xen/platform_pci.h b/include/xen/platform_pci.h
index ced434d..c3c2527 100644
--- a/include/xen/platform_pci.h
+++ b/include/xen/platform_pci.h
@@ -29,19 +29,9 @@
#define XEN_IOPORT_LINUX_PRODNUM 0xffff
#define XEN_IOPORT_LINUX_DRVVER ((LINUX_VERSION_CODE << 8) + 0x0)
-#ifdef CONFIG_XEN_PLATFORM_PCI
-unsigned long alloc_xen_mmio(unsigned long len);
-void platform_pci_resume(void);
-void platform_pci_disable_irq(void);
-void platform_pci_enable_irq(void);
-#else
-static inline unsigned long alloc_xen_mmio(unsigned long len)
-{
- return ~0UL;
-}
-static inline void platform_pci_resume(void) {}
-static inline void platform_pci_disable_irq(void) {}
-static inline void platform_pci_enable_irq(void) {}
-#endif
+extern unsigned long (*alloc_xen_mmio_hook)(unsigned long len);
+extern void (*platform_pci_resume_hook)(void);
+extern void (*platform_pci_disable_irq_hook)(void);
+extern void (*platform_pci_enable_irq_hook)(void);
#endif /* _XEN_PLATFORM_PCI_H */
--
1.5.4.3
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