diff mbox series

[v2,06/12] target/arm/kvm: spe: Add device init and set_irq operations

Message ID 7bc684ec37de06827c68c409d5f02da7381734e5.1599549462.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 Sept. 8, 2020, 8:13 a.m. UTC 
Signed-off-by: Haibo Xu <haibo.xu@linaro.org>
---
 target/arm/kvm64.c   | 33 +++++++++++++++++++++++++++++++++
 target/arm/kvm_arm.h |  5 +++++
 2 files changed, 38 insertions(+)

Comments

Andrew Jones Sept. 8, 2020, 10:58 a.m. UTC | #1 
On Tue, Sep 08, 2020 at 08:13:24AM +0000, Haibo Xu wrote:
> Signed-off-by: Haibo Xu <haibo.xu@linaro.org>
> ---
>  target/arm/kvm64.c   | 33 +++++++++++++++++++++++++++++++++
>  target/arm/kvm_arm.h |  5 +++++
>  2 files changed, 38 insertions(+)
>

Reviewed-by: Andrew Jones <drjones@redhat.com>
diff mbox series

Patch

diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
index 8ffd31ffdf..5a2032fc9e 100644
--- a/target/arm/kvm64.c
+++ b/target/arm/kvm64.c
@@ -450,6 +450,39 @@  void kvm_arm_pmu_set_irq(CPUState *cs, int irq)
     }
 }
 
+void kvm_arm_spe_init(CPUState *cs)
+{
+    struct kvm_device_attr attr = {
+        .group = KVM_ARM_VCPU_SPE_V1_CTRL,
+        .attr = KVM_ARM_VCPU_SPE_V1_INIT,
+    };
+
+    if (!ARM_CPU(cs)->has_spe) {
+        return;
+    }
+    if (!kvm_arm_set_device_attr(cs, &attr, "SPE")) {
+        error_report("failed to init SPE");
+        abort();
+    }
+}
+
+void kvm_arm_spe_set_irq(CPUState *cs, int irq)
+{
+    struct kvm_device_attr attr = {
+        .group = KVM_ARM_VCPU_SPE_V1_CTRL,
+        .addr = (intptr_t)&irq,
+        .attr = KVM_ARM_VCPU_SPE_V1_IRQ,
+    };
+
+    if (!ARM_CPU(cs)->has_spe) {
+        return;
+    }
+    if (!kvm_arm_set_device_attr(cs, &attr, "SPE")) {
+        error_report("failed to set irq for SPE");
+        abort();
+    }
+}
+
 static int read_sys_reg32(int fd, uint32_t *pret, uint64_t id)
 {
     uint64_t ret;
diff --git a/target/arm/kvm_arm.h b/target/arm/kvm_arm.h
index f79655674e..bb155322eb 100644
--- a/target/arm/kvm_arm.h
+++ b/target/arm/kvm_arm.h
@@ -348,6 +348,8 @@  int kvm_arm_vgic_probe(void);
 
 void kvm_arm_pmu_set_irq(CPUState *cs, int irq);
 void kvm_arm_pmu_init(CPUState *cs);
+void kvm_arm_spe_set_irq(CPUState *cs, int irq);
+void kvm_arm_spe_init(CPUState *cs);
 int kvm_arm_set_irq(int cpu, int irqtype, int irq, int level);
 
 #else
@@ -397,6 +399,9 @@  static inline int kvm_arm_vgic_probe(void)
 static inline void kvm_arm_pmu_set_irq(CPUState *cs, int irq) {}
 static inline void kvm_arm_pmu_init(CPUState *cs) {}
 
+static inline void kvm_arm_spe_set_irq(CPUState *cs, int irq) {}
+static inline void kvm_arm_spe_init(CPUState *cs) {}
+
 static inline void kvm_arm_sve_get_vls(CPUState *cs, unsigned long *map) {}
 
 static inline void kvm_arm_get_virtual_time(CPUState *cs) {}