diff options
| -rw-r--r-- | target-arm/cpu-qom.h | 3 | ||||
| -rw-r--r-- | target-arm/kvm.c | 11 | ||||
| -rw-r--r-- | target-arm/kvm32.c | 12 | ||||
| -rw-r--r-- | target-arm/kvm64.c | 18 | ||||
| -rw-r--r-- | target-arm/kvm_arm.h | 12 |
5 files changed, 44 insertions, 12 deletions
diff --git a/target-arm/cpu-qom.h b/target-arm/cpu-qom.h index edc7f262fc..2bd7df8bfd 100644 --- a/target-arm/cpu-qom.h +++ b/target-arm/cpu-qom.h @@ -102,6 +102,9 @@ typedef struct ARMCPU { */ uint32_t kvm_target; + /* KVM init features for this CPU */ + uint32_t kvm_init_features[7]; + /* The instance init functions for implementation-specific subclasses * set these fields to specify the implementation-dependent values of * various constant registers and reset values of non-constant diff --git a/target-arm/kvm.c b/target-arm/kvm.c index 39202d7eea..319784d689 100644 --- a/target-arm/kvm.c +++ b/target-arm/kvm.c @@ -27,6 +27,17 @@ const KVMCapabilityInfo kvm_arch_required_capabilities[] = { KVM_CAP_LAST_INFO }; +int kvm_arm_vcpu_init(CPUState *cs) +{ + ARMCPU *cpu = ARM_CPU(cs); + struct kvm_vcpu_init init; + + init.target = cpu->kvm_target; + memcpy(init.features, cpu->kvm_init_features, sizeof(init.features)); + + return kvm_vcpu_ioctl(cs, KVM_ARM_VCPU_INIT, &init); +} + bool kvm_arm_create_scratch_host_vcpu(const uint32_t *cpus_to_try, int *fdarray, struct kvm_vcpu_init *init) diff --git a/target-arm/kvm32.c b/target-arm/kvm32.c index b79750c57e..b142e90719 100644 --- a/target-arm/kvm32.c +++ b/target-arm/kvm32.c @@ -166,7 +166,6 @@ static int compare_u64(const void *a, const void *b) int kvm_arch_init_vcpu(CPUState *cs) { - struct kvm_vcpu_init init; int i, ret, arraylen; uint64_t v; struct kvm_one_reg r; @@ -179,15 +178,18 @@ int kvm_arch_init_vcpu(CPUState *cs) return -EINVAL; } - init.target = cpu->kvm_target; - memset(init.features, 0, sizeof(init.features)); + /* Determine init features for this CPU */ + memset(cpu->kvm_init_features, 0, sizeof(cpu->kvm_init_features)); if (cpu->start_powered_off) { - init.features[0] = 1 << KVM_ARM_VCPU_POWER_OFF; + cpu->kvm_init_features[0] |= 1 << KVM_ARM_VCPU_POWER_OFF; } - ret = kvm_vcpu_ioctl(cs, KVM_ARM_VCPU_INIT, &init); + + /* Do KVM_ARM_VCPU_INIT ioctl */ + ret = kvm_arm_vcpu_init(cs); if (ret) { return ret; } + /* Query the kernel to make sure it supports 32 VFP * registers: QEMU's "cortex-a15" CPU is always a * VFP-D32 core. The simplest way to do this is just diff --git a/target-arm/kvm64.c b/target-arm/kvm64.c index 70f311bed6..9936aa85a8 100644 --- a/target-arm/kvm64.c +++ b/target-arm/kvm64.c @@ -77,9 +77,8 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUClass *ahcc) int kvm_arch_init_vcpu(CPUState *cs) { - ARMCPU *cpu = ARM_CPU(cs); - struct kvm_vcpu_init init; int ret; + ARMCPU *cpu = ARM_CPU(cs); if (cpu->kvm_target == QEMU_KVM_ARM_TARGET_NONE || !arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { @@ -87,16 +86,21 @@ int kvm_arch_init_vcpu(CPUState *cs) return -EINVAL; } - init.target = cpu->kvm_target; - memset(init.features, 0, sizeof(init.features)); + /* Determine init features for this CPU */ + memset(cpu->kvm_init_features, 0, sizeof(cpu->kvm_init_features)); if (cpu->start_powered_off) { - init.features[0] = 1 << KVM_ARM_VCPU_POWER_OFF; + cpu->kvm_init_features[0] |= 1 << KVM_ARM_VCPU_POWER_OFF; + } + + /* Do KVM_ARM_VCPU_INIT ioctl */ + ret = kvm_arm_vcpu_init(cs); + if (ret) { + return ret; } - ret = kvm_vcpu_ioctl(cs, KVM_ARM_VCPU_INIT, &init); /* TODO : support for save/restore/reset of system regs via tuple list */ - return ret; + return 0; } #define AARCH64_CORE_REG(x) (KVM_REG_ARM64 | KVM_REG_SIZE_U64 | \ diff --git a/target-arm/kvm_arm.h b/target-arm/kvm_arm.h index dc4e2336fa..af93105517 100644 --- a/target-arm/kvm_arm.h +++ b/target-arm/kvm_arm.h @@ -15,6 +15,18 @@ #include "exec/memory.h" /** + * kvm_arm_vcpu_init: + * @cs: CPUState + * + * Initialize (or reinitialize) the VCPU by invoking the + * KVM_ARM_VCPU_INIT ioctl with the CPU type and feature + * bitmask specified in the CPUState. + * + * Returns: 0 if success else < 0 error code + */ +int kvm_arm_vcpu_init(CPUState *cs); + +/** * kvm_arm_register_device: * @mr: memory region for this device * @devid: the KVM device ID |