[patch 11/12] libkvm: interface for pmtimer save/restore

[Marcelo Tosatti <mtosatti@redhat.com>]

[-- Attachment #1: inkernel-acpi-migration --]
[-- Type: text/plain, Size: 1954 bytes --]

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

Index: kvm-userspace.realtip/libkvm/libkvm-x86.c
===================================================================
--- kvm-userspace.realtip.orig/libkvm/libkvm-x86.c
+++ kvm-userspace.realtip/libkvm/libkvm-x86.c
@@ -418,6 +418,37 @@ int kvm_set_pit(kvm_context_t kvm, struc
 
 #endif
 
+#ifdef KVM_CAP_ACPI_TIMER
+
+int kvm_get_acpi_timer(kvm_context_t kvm, struct kvm_acpi_timer_state *s)
+{
+	int r;
+	if (!kvm->acpi_timer_in_kernel)
+		return 0;
+	r = ioctl(kvm->vm_fd, KVM_GET_ACPI_TIMER, s);
+	if (r != 0) {
+		r = -errno;
+		perror("kvm_get_acpi_timer");
+	}
+	return r;
+}
+
+int kvm_set_acpi_timer(kvm_context_t kvm, struct kvm_acpi_timer_state *s)
+{
+	int r;
+	if (!kvm->acpi_timer_in_kernel)
+		return 0;
+	r = ioctl(kvm->vm_fd, KVM_SET_ACPI_TIMER, s);
+	if (r != 0) {
+		r = -errno;
+		perror("kvm_set_acpi_timer");
+	}
+
+	return r;
+}
+
+#endif
+
 void kvm_show_code(kvm_context_t kvm, int vcpu)
 {
 #define SHOW_CODE_LEN 50
Index: kvm-userspace.realtip/libkvm/libkvm.h
===================================================================
--- kvm-userspace.realtip.orig/libkvm/libkvm.h
+++ kvm-userspace.realtip/libkvm/libkvm.h
@@ -616,6 +616,28 @@ int kvm_set_pit(kvm_context_t kvm, struc
  */
 int kvm_acpi_timer_in_kernel(kvm_context_t kvm);
 
+#ifdef KVM_CAP_ACPI_TIMER
+
+#if defined(__i386__) || defined(__x86_64__)
+/*!
+ * \brief Get in kernel ACPI timer of the virtual domain
+ *
+ * \param kvm Pointer to the current kvm_context
+ * \param s ACPI timer state of the virtual domain
+ */
+int kvm_get_acpi_timer(kvm_context_t kvm, struct kvm_acpi_timer_state *s);
+
+/*!
+ * \brief Set in kernel ACPI timer of the virtual domain
+ *
+ * \param kvm Pointer to the current kvm_context
+ * \param s ACPI timer state of the virtual domain
+ */
+int kvm_set_acpi_timer(kvm_context_t kvm, struct kvm_acpi_timer_state *s);
+#endif
+
+#endif
+
 #ifdef KVM_CAP_OPEN_IOPORT
 
 /*!

--