Commit 46ff8325 authored by liupingwei's avatar liupingwei Committed by Codersheepchen
Browse files

virtcca feature : SM Cryptographic Aacceleration. 

virtcca inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/IAZTU5



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

VirtCCA Feature:
support SM Cryptographic Aacceleration in cvm.

Signed-off-by: default avatarliupingwei <liupingwei0317@outlook.com>
---
parent 518cee10

arch/arm64/include/asm/kvm_tmi.h

+16 −0
Original line number Diff line number Diff line
@@ -231,6 +231,8 @@ struct tmi_tec_run { 
#define TMI_FNUM_TTT_MAP_RANGE          U(0x26D)

#define TMI_FNUM_TTT_UNMAP_RANGE        U(0x26E)

#define TMI_FNUM_INF_TEST               U(0x270)

#define TMI_FNUM_KAE_INIT               U(0x273)

#define TMI_FNUM_KAE_ENABLE             U(0x274)



#define TMI_FNUM_SMMU_QUEUE_CREATE      U(0x277)

#define TMI_FNUM_SMMU_QUEUE_WRITE       U(0x278)
@@ -265,6 +267,8 @@ struct tmi_tec_run { 
#define TMI_TMM_TTT_MAP_RANGE           TMI_FID(SMC_64, TMI_FNUM_TTT_MAP_RANGE)

#define TMI_TMM_TTT_UNMAP_RANGE         TMI_FID(SMC_64, TMI_FNUM_TTT_UNMAP_RANGE)

#define TMI_TMM_INF_TEST                TMI_FID(SMC_64, TMI_FNUM_INF_TEST)

#define TMI_TMM_KAE_INIT                TMI_FID(SMC_64, TMI_FNUM_KAE_INIT)

#define TMI_TMM_KAE_ENABLE              TMI_FID(SMC_64, TMI_FNUM_KAE_ENABLE)



#define TMI_TMM_SMMU_QUEUE_CREATE       TMI_FID(SMC_64, TMI_FNUM_SMMU_QUEUE_CREATE)

#define TMI_TMM_SMMU_QUEUE_WRITE        TMI_FID(SMC_64, TMI_FNUM_SMMU_QUEUE_WRITE)
@@ -304,6 +308,9 @@ struct tmi_tec_run { 
#define KVM_CAP_ARM_TMM_CFG_SVE					2

#define KVM_CAP_ARM_TMM_CFG_DBG					3

#define KVM_CAP_ARM_TMM_CFG_PMU					4

#define KVM_CAP_ARM_TMM_CFG_KAE					5



#define KVM_CAP_ARM_TMM_MAX_KAE_VF_NUM		11



DECLARE_STATIC_KEY_FALSE(virtcca_cvm_is_available);
@@ -335,6 +342,13 @@ struct kvm_cap_arm_tmm_config_item { 
		struct {

			__u32	num_pmu_cntrs;

		};



		/* cfg == KVM_CAP_ARM_TMM_CFG_KAE */

		struct {

			__u32	kae_vf_num;

			__u64	sec_addr[KVM_CAP_ARM_TMM_MAX_KAE_VF_NUM];

			__u64	hpre_addr[KVM_CAP_ARM_TMM_MAX_KAE_VF_NUM];

		};

		/* Fix the size of the union */

		__u8	reserved[256];

	};
@@ -397,6 +411,8 @@ u64 tmi_smmu_device_reset(u64 params); 
u64 tmi_smmu_pcie_core_check(u64 smmu_base);

u64 tmi_smmu_write(u64 smmu_base, u64 reg_offset, u64 val, u64 bits);

u64 tmi_smmu_read(u64 smmu_base, u64 reg_offset, u64 bits);

u64 tmi_kae_init(void);

u64 tmi_kae_enable(u64 rd, u64 numa_set, u64 is_enable);



u64 mmio_va_to_pa(void *addr);

void kvm_cvm_vcpu_put(struct kvm_vcpu *vcpu);

arch/arm64/include/asm/kvm_tmm.h

+5 −0
Original line number Diff line number Diff line
@@ -31,6 +31,8 @@ enum virtcca_cvm_state { 
	CVM_STATE_DYING

};



#define MAX_KAE_VF_NUM	11



/*

 * Many of these fields are smaller than u64 but all fields have u64

 * alignment, so use u64 to ensure correct alignment.
@@ -50,6 +52,9 @@ struct tmi_cvm_params { 
	s64	ttt_level_start;

	u64	ttt_num_start;

	u8	rpv[64]; /* Bits 512 */

	u64	kae_vf_num;

	u64	sec_addr[MAX_KAE_VF_NUM];

	u64	hpre_addr[MAX_KAE_VF_NUM];

};



struct cvm {

arch/arm64/kvm/tmi.c

+15 −0
Original line number Diff line number Diff line
@@ -349,3 +349,18 @@ u64 tmi_dev_ttt_create(u64 numa_set, u64 rd, u64 map_addr, u64 level) 
	return res.a1;

}



u64 tmi_kae_init(void)

{

	struct arm_smccc_res res;



	arm_smccc_1_1_smc(TMI_TMM_KAE_INIT, &res);

	return res.a1;

}



u64 tmi_kae_enable(u64 rd, u64 numa_set, u64 is_enable)

{

	struct arm_smccc_res res;



	arm_smccc_1_1_smc(TMI_TMM_KAE_ENABLE, rd, numa_set, is_enable, &res);

	return res.a1;

}

arch/arm64/kvm/virtcca_cvm.c

+36 −0
Original line number Diff line number Diff line
@@ -208,6 +208,11 @@ void kvm_destroy_cvm(struct kvm *kvm) 


	WRITE_ONCE(cvm->state, CVM_STATE_DYING);



	u64 numa_set = kvm_get_first_binded_numa_set(kvm);



	if (tmi_kae_enable(cvm->rd, numa_set, 0))

		kvm_err("vf destroy failed!\n");



	if (!tmi_cvm_destroy(cvm->rd))

		kvm_info("KVM has destroyed cVM: %d\n", cvm->cvm_vmid);
@@ -476,6 +481,23 @@ static int config_cvm_pmu(struct kvm *kvm, struct kvm_cap_arm_tmm_config_item *c 
	return 0;

}



static int config_cvm_kae(struct kvm *kvm, struct kvm_cap_arm_tmm_config_item *cfg)

{

	struct virtcca_cvm *cvm = kvm->arch.virtcca_cvm;

	struct tmi_cvm_params *params;



	params = cvm->params;



	if (cfg->kae_vf_num > KVM_CAP_ARM_TMM_MAX_KAE_VF_NUM)

		return -EINVAL;



	params->kae_vf_num = cfg->kae_vf_num;

	memcpy(params->sec_addr, cfg->sec_addr, cfg->kae_vf_num * sizeof(u64));

	memcpy(params->hpre_addr, cfg->sec_addr, cfg->kae_vf_num * sizeof(u64));



	return 0;

}



static int kvm_tmm_config_cvm(struct kvm *kvm, struct kvm_enable_cap *cap)

{

	struct virtcca_cvm *cvm = kvm->arch.virtcca_cvm;
@@ -498,6 +520,10 @@ static int kvm_tmm_config_cvm(struct kvm *kvm, struct kvm_enable_cap *cap) 
	case KVM_CAP_ARM_TMM_CFG_HASH_ALGO:

		r = config_cvm_hash_algo(cvm->params, &cfg);

		break;

	case KVM_CAP_ARM_TMM_CFG_KAE:

		r = config_cvm_kae(kvm, &cfg);

		break;



	default:

		r = -EINVAL;

	}
@@ -567,6 +593,13 @@ static int kvm_activate_cvm(struct kvm *kvm) 
	}

#endif



	u64 numa_set = kvm_get_first_binded_numa_set(kvm);



	if (tmi_kae_enable(cvm->rd, numa_set, 1)) {

		kvm_err("tmi_kae_enable failed!\n");

		return -ENXIO;

	}



	if (tmi_cvm_activate(cvm->rd)) {

		kvm_err("tmi_cvm_activate failed!\n");

		return -ENXIO;
@@ -739,6 +772,9 @@ int kvm_init_tmm(void) 
	if (tmi_check_version())

		return 0;



	if (tmi_kae_init())

		pr_warn("kvm [%i]: Warning: kae init failed!\n", task_pid_nr(current));



	ret = cvm_vmid_init();

	if (ret)

		return ret;