Commit a787bb8a authored by Ju Fu's avatar Ju Fu
Browse files

cvm: clean code for cvm init 

virtcca inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I9TM0T



--------------------------------

clean code for cvm init

Signed-off-by: default avatarJu Fu <fuju1@huawei.com>
parent 3b9084bc

arch/arm64/include/asm/kvm_pgtable.h

+0 −3
Original line number Diff line number Diff line
@@ -53,9 +53,6 @@ enum kvm_pgtable_prot { 
	KVM_PGTABLE_PROT_PBHA3			= BIT(62),

};



#define TMI_NO_MEASURE_CONTENT	U(0)

#define TMI_MEASURE_CONTENT	U(1)



#define PAGE_HYP		(KVM_PGTABLE_PROT_R | KVM_PGTABLE_PROT_W)

#define PAGE_HYP_EXEC		(KVM_PGTABLE_PROT_R | KVM_PGTABLE_PROT_X)

#define PAGE_HYP_RO		(KVM_PGTABLE_PROT_R)

arch/arm64/include/asm/kvm_tmi.h

+5 −0
Original line number Diff line number Diff line
@@ -211,6 +211,9 @@ struct tmi_tec_run { 


#define U(_x) (_x##U)



#define TMI_NO_MEASURE_CONTENT	U(0)

#define TMI_MEASURE_CONTENT	U(1)



/*

 * SMC_TMM_INIT_COMPLETE is the only function in the TMI that originates from

 * the CVM world and is handled by the SPMD. The remaining functions are
@@ -384,6 +387,8 @@ unsigned long cvm_psci_vcpu_affinity_info(struct kvm_vcpu *vcpu, 
	unsigned long target_affinity, unsigned long lowest_affinity_level);

int kvm_cvm_vcpu_set_events(struct kvm_vcpu *vcpu,

	bool serror_pending, bool ext_dabt_pending);

int kvm_create_cvm_vm(struct kvm *kvm);

int kvm_init_cvm_vm(struct kvm *kvm);



#endif

#endif

arch/arm64/kvm/arm.c

+0 −35
Original line number Diff line number Diff line
@@ -145,41 +145,6 @@ static void set_default_csv2(struct kvm *kvm) 
		kvm->arch.pfr0_csv2 = 1;

}



static int kvm_create_cvm_vm(struct kvm *kvm)

{

	struct cvm *cvm;



	if (!static_key_enabled(&kvm_cvm_is_available))

		return -EFAULT;



	if (kvm->arch.cvm) {

		kvm_info("cvm already create.\n");

		return 0;

	}



	kvm->arch.cvm = kzalloc(sizeof(struct cvm), GFP_KERNEL_ACCOUNT);

	if (!kvm->arch.cvm)

		return -ENOMEM;



	cvm = (struct cvm *)kvm->arch.cvm;

	cvm->is_cvm = true;

	return 0;

}



static int kvm_init_cvm_vm(struct kvm *kvm)

{

	struct tmi_cvm_params *params;

	struct cvm *cvm = (struct cvm *)kvm->arch.cvm;



	params = kzalloc(PAGE_SIZE, GFP_KERNEL_ACCOUNT);

	if (!params)

		return -ENOMEM;



	cvm->params = params;



	return 0;

}



/**

 * kvm_arch_init_vm - initializes a VM data structure

 * @kvm:	pointer to the KVM struct

arch/arm64/kvm/cvm.c

+44 −5
Original line number Diff line number Diff line
@@ -158,8 +158,10 @@ int kvm_arm_create_cvm(struct kvm *kvm) 
	if (!kvm_is_cvm(kvm) || kvm_cvm_state(kvm) != CVM_STATE_NONE)

		return 0;



	if (!cvm->params)

		return -EFAULT;

	if (!cvm->params) {

		ret = -EFAULT;

		goto out;

	}



	ret = cvm_vmid_reserve();

	if (ret < 0)
@@ -184,12 +186,14 @@ int kvm_arm_create_cvm(struct kvm *kvm) 
	}



	WRITE_ONCE(cvm->state, CVM_STATE_NEW);

	kfree(cvm->params);

	cvm->params = NULL;

	return ret;

	ret = 0;

out:

	kfree(cvm->params);

	cvm->params = NULL;

	if (ret < 0) {

		kfree(cvm);

		kvm->arch.cvm = NULL;

	}

	return ret;

}
@@ -835,3 +839,38 @@ int kvm_cvm_vcpu_set_events(struct kvm_vcpu *vcpu, 
	}

	return 0;

}



int kvm_create_cvm_vm(struct kvm *kvm)

{

	struct cvm *cvm;



	if (!static_key_enabled(&kvm_cvm_is_available))

		return -EFAULT;



	if (kvm->arch.cvm) {

		kvm_info("cvm already create.\n");

		return 0;

	}



	kvm->arch.cvm = kzalloc(sizeof(struct cvm), GFP_KERNEL_ACCOUNT);

	if (!kvm->arch.cvm)

		return -ENOMEM;



	cvm = (struct cvm *)kvm->arch.cvm;

	cvm->is_cvm = true;

	return 0;

}



int kvm_init_cvm_vm(struct kvm *kvm)

{

	struct tmi_cvm_params *params;

	struct cvm *cvm = (struct cvm *)kvm->arch.cvm;



	params = kzalloc(PAGE_SIZE, GFP_KERNEL_ACCOUNT);

	if (!params)

		return -ENOMEM;



	cvm->params = params;



	return 0;

}

arch/arm64/kvm/hyp/vgic-v3-sr.c

+0 −19
Original line number Diff line number Diff line
@@ -229,25 +229,6 @@ void __vgic_v3_save_state(struct vgic_v3_cpu_if *cpu_if) 
	}

}



#ifdef CONFIG_CVM_HOST

void __vgic_v3_restore_tec_state(struct vgic_v3_cpu_if *cpu_if,

				 u64 *entry_hcr,

				 u64 *entry_lrs)

{

	u64 used_lrs = cpu_if->used_lrs;

	int i;



	*entry_hcr = cpu_if->vgic_hcr;

	for (i = 0; i < kvm_vgic_global_state.nr_lr; ++i) {

		if (i < used_lrs) {

			entry_lrs[i] = cpu_if->vgic_lr[i];

		} else {

			entry_lrs[i] = 0;

		}

	}

}

#endif



void __vgic_v3_restore_state(struct vgic_v3_cpu_if *cpu_if)

{

	u64 used_lrs = cpu_if->used_lrs;