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authorVitaly Kuznetsov <vkuznets@redhat.com>2017-03-14 20:35:49 +0300
committerJuergen Gross <jgross@suse.com>2017-05-02 12:09:17 +0300
commit9963236d7c753cf89be2e0366af185e51f150c79 (patch)
tree13918252137440a1f3504cd8b4da2f5af85fde16 /arch/x86/xen/suspend_pv.c
parent7e0563dea9c4e62297846359186c597e7231912d (diff)
downloadlinux-9963236d7c753cf89be2e0366af185e51f150c79.tar.xz
x86/xen: split suspend.c for PV and PVHVM guests
Slit the code in suspend.c into suspend_pv.c and suspend_hvm.c. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Reviewed-by: Juergen Gross <jgross@suse.com> Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'arch/x86/xen/suspend_pv.c')
-rw-r--r--arch/x86/xen/suspend_pv.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/x86/xen/suspend_pv.c b/arch/x86/xen/suspend_pv.c
new file mode 100644
index 000000000000..3abe4f07f34a
--- /dev/null
+++ b/arch/x86/xen/suspend_pv.c
@@ -0,0 +1,46 @@
+#include <linux/types.h>
+
+#include <asm/fixmap.h>
+
+#include <asm/xen/hypercall.h>
+#include <asm/xen/page.h>
+
+#include "xen-ops.h"
+
+void xen_pv_pre_suspend(void)
+{
+ xen_mm_pin_all();
+
+ xen_start_info->store_mfn = mfn_to_pfn(xen_start_info->store_mfn);
+ xen_start_info->console.domU.mfn =
+ mfn_to_pfn(xen_start_info->console.domU.mfn);
+
+ BUG_ON(!irqs_disabled());
+
+ HYPERVISOR_shared_info = &xen_dummy_shared_info;
+ if (HYPERVISOR_update_va_mapping(fix_to_virt(FIX_PARAVIRT_BOOTMAP),
+ __pte_ma(0), 0))
+ BUG();
+}
+
+void xen_pv_post_suspend(int suspend_cancelled)
+{
+ xen_build_mfn_list_list();
+
+ xen_setup_shared_info();
+
+ if (suspend_cancelled) {
+ xen_start_info->store_mfn =
+ pfn_to_mfn(xen_start_info->store_mfn);
+ xen_start_info->console.domU.mfn =
+ pfn_to_mfn(xen_start_info->console.domU.mfn);
+ } else {
+#ifdef CONFIG_SMP
+ BUG_ON(xen_cpu_initialized_map == NULL);
+ cpumask_copy(xen_cpu_initialized_map, cpu_online_mask);
+#endif
+ xen_vcpu_restore();
+ }
+
+ xen_mm_unpin_all();
+}