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path: root/arch/riscv/kvm/vcpu_onereg.c
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Diffstat (limited to 'arch/riscv/kvm/vcpu_onereg.c')
-rw-r--r--arch/riscv/kvm/vcpu_onereg.c95
1 files changed, 32 insertions, 63 deletions
diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c
index cce6a38ea54f..865dae903aa0 100644
--- a/arch/riscv/kvm/vcpu_onereg.c
+++ b/arch/riscv/kvm/vcpu_onereg.c
@@ -65,9 +65,11 @@ static const unsigned long kvm_isa_ext_arr[] = {
KVM_ISA_EXT_ARR(ZCF),
KVM_ISA_EXT_ARR(ZCMOP),
KVM_ISA_EXT_ARR(ZFA),
+ KVM_ISA_EXT_ARR(ZFBFMIN),
KVM_ISA_EXT_ARR(ZFH),
KVM_ISA_EXT_ARR(ZFHMIN),
KVM_ISA_EXT_ARR(ZICBOM),
+ KVM_ISA_EXT_ARR(ZICBOP),
KVM_ISA_EXT_ARR(ZICBOZ),
KVM_ISA_EXT_ARR(ZICCRSE),
KVM_ISA_EXT_ARR(ZICNTR),
@@ -88,6 +90,8 @@ static const unsigned long kvm_isa_ext_arr[] = {
KVM_ISA_EXT_ARR(ZTSO),
KVM_ISA_EXT_ARR(ZVBB),
KVM_ISA_EXT_ARR(ZVBC),
+ KVM_ISA_EXT_ARR(ZVFBFMIN),
+ KVM_ISA_EXT_ARR(ZVFBFWMA),
KVM_ISA_EXT_ARR(ZVFH),
KVM_ISA_EXT_ARR(ZVFHMIN),
KVM_ISA_EXT_ARR(ZVKB),
@@ -173,7 +177,6 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext)
case KVM_RISCV_ISA_EXT_C:
case KVM_RISCV_ISA_EXT_I:
case KVM_RISCV_ISA_EXT_M:
- case KVM_RISCV_ISA_EXT_SMNPM:
/* There is not architectural config bit to disable sscofpmf completely */
case KVM_RISCV_ISA_EXT_SSCOFPMF:
case KVM_RISCV_ISA_EXT_SSNPM:
@@ -199,8 +202,10 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext)
case KVM_RISCV_ISA_EXT_ZCF:
case KVM_RISCV_ISA_EXT_ZCMOP:
case KVM_RISCV_ISA_EXT_ZFA:
+ case KVM_RISCV_ISA_EXT_ZFBFMIN:
case KVM_RISCV_ISA_EXT_ZFH:
case KVM_RISCV_ISA_EXT_ZFHMIN:
+ case KVM_RISCV_ISA_EXT_ZICBOP:
case KVM_RISCV_ISA_EXT_ZICCRSE:
case KVM_RISCV_ISA_EXT_ZICNTR:
case KVM_RISCV_ISA_EXT_ZICOND:
@@ -220,6 +225,8 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext)
case KVM_RISCV_ISA_EXT_ZTSO:
case KVM_RISCV_ISA_EXT_ZVBB:
case KVM_RISCV_ISA_EXT_ZVBC:
+ case KVM_RISCV_ISA_EXT_ZVFBFMIN:
+ case KVM_RISCV_ISA_EXT_ZVFBFWMA:
case KVM_RISCV_ISA_EXT_ZVFH:
case KVM_RISCV_ISA_EXT_ZVFHMIN:
case KVM_RISCV_ISA_EXT_ZVKB:
@@ -277,15 +284,20 @@ static int kvm_riscv_vcpu_get_reg_config(struct kvm_vcpu *vcpu,
reg_val = vcpu->arch.isa[0] & KVM_RISCV_BASE_ISA_MASK;
break;
case KVM_REG_RISCV_CONFIG_REG(zicbom_block_size):
- if (!riscv_isa_extension_available(vcpu->arch.isa, ZICBOM))
+ if (!riscv_isa_extension_available(NULL, ZICBOM))
return -ENOENT;
reg_val = riscv_cbom_block_size;
break;
case KVM_REG_RISCV_CONFIG_REG(zicboz_block_size):
- if (!riscv_isa_extension_available(vcpu->arch.isa, ZICBOZ))
+ if (!riscv_isa_extension_available(NULL, ZICBOZ))
return -ENOENT;
reg_val = riscv_cboz_block_size;
break;
+ case KVM_REG_RISCV_CONFIG_REG(zicbop_block_size):
+ if (!riscv_isa_extension_available(NULL, ZICBOP))
+ return -ENOENT;
+ reg_val = riscv_cbop_block_size;
+ break;
case KVM_REG_RISCV_CONFIG_REG(mvendorid):
reg_val = vcpu->arch.mvendorid;
break;
@@ -366,17 +378,23 @@ static int kvm_riscv_vcpu_set_reg_config(struct kvm_vcpu *vcpu,
}
break;
case KVM_REG_RISCV_CONFIG_REG(zicbom_block_size):
- if (!riscv_isa_extension_available(vcpu->arch.isa, ZICBOM))
+ if (!riscv_isa_extension_available(NULL, ZICBOM))
return -ENOENT;
if (reg_val != riscv_cbom_block_size)
return -EINVAL;
break;
case KVM_REG_RISCV_CONFIG_REG(zicboz_block_size):
- if (!riscv_isa_extension_available(vcpu->arch.isa, ZICBOZ))
+ if (!riscv_isa_extension_available(NULL, ZICBOZ))
return -ENOENT;
if (reg_val != riscv_cboz_block_size)
return -EINVAL;
break;
+ case KVM_REG_RISCV_CONFIG_REG(zicbop_block_size):
+ if (!riscv_isa_extension_available(NULL, ZICBOP))
+ return -ENOENT;
+ if (reg_val != riscv_cbop_block_size)
+ return -EINVAL;
+ break;
case KVM_REG_RISCV_CONFIG_REG(mvendorid):
if (reg_val == vcpu->arch.mvendorid)
break;
@@ -817,10 +835,13 @@ static int copy_config_reg_indices(const struct kvm_vcpu *vcpu,
* was not available.
*/
if (i == KVM_REG_RISCV_CONFIG_REG(zicbom_block_size) &&
- !riscv_isa_extension_available(vcpu->arch.isa, ZICBOM))
+ !riscv_isa_extension_available(NULL, ZICBOM))
continue;
else if (i == KVM_REG_RISCV_CONFIG_REG(zicboz_block_size) &&
- !riscv_isa_extension_available(vcpu->arch.isa, ZICBOZ))
+ !riscv_isa_extension_available(NULL, ZICBOZ))
+ continue;
+ else if (i == KVM_REG_RISCV_CONFIG_REG(zicbop_block_size) &&
+ !riscv_isa_extension_available(NULL, ZICBOP))
continue;
size = IS_ENABLED(CONFIG_32BIT) ? KVM_REG_SIZE_U32 : KVM_REG_SIZE_U64;
@@ -1061,66 +1082,14 @@ static inline unsigned long num_isa_ext_regs(const struct kvm_vcpu *vcpu)
return copy_isa_ext_reg_indices(vcpu, NULL);
}
-static int copy_sbi_ext_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices)
-{
- unsigned int n = 0;
-
- for (int i = 0; i < KVM_RISCV_SBI_EXT_MAX; i++) {
- u64 size = IS_ENABLED(CONFIG_32BIT) ?
- KVM_REG_SIZE_U32 : KVM_REG_SIZE_U64;
- u64 reg = KVM_REG_RISCV | size | KVM_REG_RISCV_SBI_EXT |
- KVM_REG_RISCV_SBI_SINGLE | i;
-
- if (!riscv_vcpu_supports_sbi_ext(vcpu, i))
- continue;
-
- if (uindices) {
- if (put_user(reg, uindices))
- return -EFAULT;
- uindices++;
- }
-
- n++;
- }
-
- return n;
-}
-
static unsigned long num_sbi_ext_regs(struct kvm_vcpu *vcpu)
{
- return copy_sbi_ext_reg_indices(vcpu, NULL);
-}
-
-static int copy_sbi_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices)
-{
- struct kvm_vcpu_sbi_context *scontext = &vcpu->arch.sbi_context;
- int total = 0;
-
- if (scontext->ext_status[KVM_RISCV_SBI_EXT_STA] == KVM_RISCV_SBI_EXT_STATUS_ENABLED) {
- u64 size = IS_ENABLED(CONFIG_32BIT) ? KVM_REG_SIZE_U32 : KVM_REG_SIZE_U64;
- int n = sizeof(struct kvm_riscv_sbi_sta) / sizeof(unsigned long);
-
- for (int i = 0; i < n; i++) {
- u64 reg = KVM_REG_RISCV | size |
- KVM_REG_RISCV_SBI_STATE |
- KVM_REG_RISCV_SBI_STA | i;
-
- if (uindices) {
- if (put_user(reg, uindices))
- return -EFAULT;
- uindices++;
- }
- }
-
- total += n;
- }
-
- return total;
+ return kvm_riscv_vcpu_reg_indices_sbi_ext(vcpu, NULL);
}
static inline unsigned long num_sbi_regs(struct kvm_vcpu *vcpu)
{
- return copy_sbi_reg_indices(vcpu, NULL);
+ return kvm_riscv_vcpu_reg_indices_sbi(vcpu, NULL);
}
static inline unsigned long num_vector_regs(const struct kvm_vcpu *vcpu)
@@ -1243,12 +1212,12 @@ int kvm_riscv_vcpu_copy_reg_indices(struct kvm_vcpu *vcpu,
return ret;
uindices += ret;
- ret = copy_sbi_ext_reg_indices(vcpu, uindices);
+ ret = kvm_riscv_vcpu_reg_indices_sbi_ext(vcpu, uindices);
if (ret < 0)
return ret;
uindices += ret;
- ret = copy_sbi_reg_indices(vcpu, uindices);
+ ret = kvm_riscv_vcpu_reg_indices_sbi(vcpu, uindices);
if (ret < 0)
return ret;
uindices += ret;
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-05 15:05:18 +0000