diff mbox series

[2/7] target/arm/kvm: spe: Add helper to detect SPE when using KVM

Message ID 76aa68f9ec73ced85070b81ef5251771ca27d072.1596768588.git.haibo.xu@linaro.org (mailing list archive)
State New, archived
Headers show
Series target/arm: Add vSPE support to KVM guest | expand

Commit Message

Haibo Xu Aug. 7, 2020, 8:10 a.m. UTC 
Signed-off-by: Haibo Xu <haibo.xu@linaro.org>
---
 target/arm/kvm.c     |  5 +++++
 target/arm/kvm_arm.h | 13 +++++++++++++
 2 files changed, 18 insertions(+)

Comments

Richard Henderson Aug. 14, 2020, 7:16 p.m. UTC | #1 
On 8/7/20 1:10 AM, Haibo Xu wrote:
> Signed-off-by: Haibo Xu <haibo.xu@linaro.org>
> ---
>  target/arm/kvm.c     |  5 +++++
>  target/arm/kvm_arm.h | 13 +++++++++++++
>  2 files changed, 18 insertions(+)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~
diff mbox series

Patch

diff --git a/target/arm/kvm.c b/target/arm/kvm.c
index 8bb7318378..58f991e890 100644
--- a/target/arm/kvm.c
+++ b/target/arm/kvm.c
@@ -214,6 +214,11 @@  bool kvm_arm_pmu_supported(void)
     return kvm_check_extension(kvm_state, KVM_CAP_ARM_PMU_V3);
 }
 
+bool kvm_arm_spe_supported(void)
+{
+    return kvm_check_extension(kvm_state, KVM_CAP_ARM_SPE_V1);
+}
+
 int kvm_arm_get_max_vm_ipa_size(MachineState *ms)
 {
     KVMState *s = KVM_STATE(ms->accelerator);
diff --git a/target/arm/kvm_arm.h b/target/arm/kvm_arm.h
index adb38514bf..f79655674e 100644
--- a/target/arm/kvm_arm.h
+++ b/target/arm/kvm_arm.h
@@ -283,6 +283,14 @@  bool kvm_arm_aarch32_supported(void);
  */
 bool kvm_arm_pmu_supported(void);

+/**
+ * kvm_arm_spe_supported:
+ *
+ * Returns: true if the KVM VCPU can enable its SPE
+ * and false otherwise.
+ */
+bool kvm_arm_spe_supported(void);
+
 /**
  * kvm_arm_sve_supported:
  *
@@ -366,6 +374,11 @@  static inline bool kvm_arm_pmu_supported(void)
     return false;
 }

+static inline bool kvm_arm_spe_supported(void)
+{
+    return false;
+}
+
 static inline bool kvm_arm_sve_supported(void)
 {
     return false;