This patch adds some helper functions to manipulate the
Posted-Interrupts Descriptor.
Signed-off-by: Feng Wu <feng...@intel.com>
---
arch/x86/kvm/vmx.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 765539e..1e815b6 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -442,6 +442,8 @@ struct nested_vmx {
};
#define POSTED_INTR_ON 0
+#define POSTED_INTR_SN 1
+
/* Posted-Interrupt Descriptor */
struct pi_desc {
u32 pir[8]; /* Posted interrupt requested */
@@ -482,6 +484,30 @@ static int pi_test_and_set_pir(int vector, struct pi_desc
*pi_desc)
return test_and_set_bit(vector, (unsigned long *)pi_desc->pir);
}
+static void pi_clear_sn(struct pi_desc *pi_desc)
+{
+ return clear_bit(POSTED_INTR_SN,
+ (unsigned long *)&pi_desc->control);
+}
+
+static void pi_set_sn(struct pi_desc *pi_desc)
+{
+ return set_bit(POSTED_INTR_SN,
+ (unsigned long *)&pi_desc->control);
+}
+
+static int pi_test_on(struct pi_desc *pi_desc)
+{
+ return test_bit(POSTED_INTR_ON,
+ (unsigned long *)&pi_desc->control);
+}
+
+static int pi_test_sn(struct pi_desc *pi_desc)
+{
+ return test_bit(POSTED_INTR_SN,
+ (unsigned long *)&pi_desc->control);
+}
+
struct vcpu_vmx {
struct kvm_vcpu vcpu;
unsigned long host_rsp;
--
2.1.0
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
