diff mbox

[v7,02/17] KVM: Add some helper functions for Posted-Interrupts

Message ID 1440492620-15934-3-git-send-email-feng.wu@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Wu, Feng Aug. 25, 2015, 8:50 a.m. UTC 
This patch adds some helper functions to manipulate the
Posted-Interrupts Descriptor.

Signed-off-by: Feng Wu <feng.wu@intel.com>
---
 arch/x86/kvm/vmx.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

Comments

Paolo Bonzini Sept. 11, 2015, 10:16 a.m. UTC | #1 
On 25/08/2015 10:50, Feng Wu wrote:
> This patch adds some helper functions to manipulate the
> Posted-Interrupts Descriptor.
> 
> Signed-off-by: Feng Wu <feng.wu@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 271dd70..316f9bf 100644
> --- a/arch/x86/kvm/vmx.c
> +++ b/arch/x86/kvm/vmx.c
> @@ -443,6 +443,8 @@ 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 */
> @@ -483,6 +485,30 @@ 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;
> 

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
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diff mbox

Patch

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 271dd70..316f9bf 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -443,6 +443,8 @@  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 */
@@ -483,6 +485,30 @@  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;