Introduce CONFIG_XEN_PVHVM compile option
This patch introduce a CONFIG_XEN_PVHVM compile time option to
enable/disable Xen PV on HVM support.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
diff --git a/arch/x86/kernel/cpu/hypervisor.c b/arch/x86/kernel/cpu/hypervisor.c
index 5bccedc..8095f86 100644
--- a/arch/x86/kernel/cpu/hypervisor.c
+++ b/arch/x86/kernel/cpu/hypervisor.c
@@ -34,7 +34,7 @@
{
&x86_hyper_vmware,
&x86_hyper_ms_hyperv,
-#ifdef CONFIG_XEN
+#ifdef CONFIG_XEN_PVHVM
&x86_hyper_xen_hvm,
#endif
};
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index b83e119..68128a1 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -13,6 +13,11 @@
kernel to boot in a paravirtualized environment under the
Xen hypervisor.
+config XEN_PVHVM
+ def_bool y
+ depends on XEN
+ depends on X86_LOCAL_APIC
+
config XEN_MAX_DOMAIN_MEMORY
int "Maximum allowed size of a domain in gigabytes"
default 8 if X86_32
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 75b479a..6f53453 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1282,6 +1282,7 @@
}
}
+#ifdef CONFIG_XEN_PVHVM
static int __cpuinit xen_hvm_cpu_notify(struct notifier_block *self,
unsigned long action, void *hcpu)
{
@@ -1338,3 +1339,4 @@
.init_platform = xen_hvm_guest_init,
};
EXPORT_SYMBOL(x86_hyper_xen_hvm);
+#endif
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 84648c1..413b19b 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -1942,6 +1942,7 @@
pv_mmu_ops = xen_mmu_ops;
}
+#ifdef CONFIG_XEN_PVHVM
static void xen_hvm_exit_mmap(struct mm_struct *mm)
{
struct xen_hvm_pagetable_dying a;
@@ -1973,6 +1974,7 @@
if (is_pagetable_dying_supported())
pv_mmu_ops.exit_mmap = xen_hvm_exit_mmap;
}
+#endif
#ifdef CONFIG_XEN_DEBUG_FS
diff --git a/arch/x86/xen/platform-pci-unplug.c b/arch/x86/xen/platform-pci-unplug.c
index 2f7f3fb..554c002 100644
--- a/arch/x86/xen/platform-pci-unplug.c
+++ b/arch/x86/xen/platform-pci-unplug.c
@@ -32,6 +32,7 @@
/* store the value of xen_emul_unplug after the unplug is done */
int xen_platform_pci_unplug;
EXPORT_SYMBOL_GPL(xen_platform_pci_unplug);
+#ifdef CONFIG_XEN_PVHVM
static int xen_emul_unplug;
static int __init check_platform_magic(void)
@@ -133,3 +134,4 @@
return 0;
}
early_param("xen_emul_unplug", parse_xen_emul_unplug);
+#endif
diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index 4780e55..2aab4a2 100644
--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -516,6 +516,7 @@
x86_platform.set_wallclock = xen_set_wallclock;
}
+#ifdef CONFIG_XEN_PVHVM
static void xen_hvm_setup_cpu_clockevents(void)
{
int cpu = smp_processor_id();
@@ -544,4 +545,4 @@
x86_platform.get_wallclock = xen_get_wallclock;
x86_platform.set_wallclock = xen_set_wallclock;
}
-
+#endif