diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
index 718dfffa17d5..bc56a312497d 100644
--- a/arch/mips/include/asm/kvm_host.h
+++ b/arch/mips/include/asm/kvm_host.h
@@ -345,7 +345,6 @@ struct kvm_vcpu_arch {
u8 fpu_enabled;
u8 msa_enabled;
- u8 kscratch_enabled;
};
diff --git a/arch/mips/kvm/emulate.c b/arch/mips/kvm/emulate.c
index b6cafb0a9df4..f2b054b80bca 100644
--- a/arch/mips/kvm/emulate.c
+++ b/arch/mips/kvm/emulate.c
@@ -1066,7 +1066,7 @@ unsigned int kvm_mips_config4_wrmask(struct kvm_vcpu *vcpu)
unsigned int mask = MIPS_CONF_M;
/* KScrExist */
- mask |= (unsigned int)vcpu->arch.kscratch_enabled << 16;
+ mask |= 0xfc << MIPS_CONF4_KSCREXIST_SHIFT;
return mask;
}
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index 591426cda15e..9338aec08790 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -520,33 +520,6 @@ static u64 kvm_mips_get_one_regs[] = {
KVM_REG_MIPS_LO,
#endif
KVM_REG_MIPS_PC,
-
- KVM_REG_MIPS_CP0_INDEX,
- KVM_REG_MIPS_CP0_CONTEXT,
- KVM_REG_MIPS_CP0_USERLOCAL,
- KVM_REG_MIPS_CP0_PAGEMASK,
- KVM_REG_MIPS_CP0_WIRED,
- KVM_REG_MIPS_CP0_HWRENA,
- KVM_REG_MIPS_CP0_BADVADDR,
- KVM_REG_MIPS_CP0_COUNT,
- KVM_REG_MIPS_CP0_ENTRYHI,
- KVM_REG_MIPS_CP0_COMPARE,
- KVM_REG_MIPS_CP0_STATUS,
- KVM_REG_MIPS_CP0_CAUSE,
- KVM_REG_MIPS_CP0_EPC,
- KVM_REG_MIPS_CP0_PRID,
- KVM_REG_MIPS_CP0_CONFIG,
- KVM_REG_MIPS_CP0_CONFIG1,
- KVM_REG_MIPS_CP0_CONFIG2,
- KVM_REG_MIPS_CP0_CONFIG3,
- KVM_REG_MIPS_CP0_CONFIG4,
- KVM_REG_MIPS_CP0_CONFIG5,
- KVM_REG_MIPS_CP0_CONFIG7,
- KVM_REG_MIPS_CP0_ERROREPC,
-
- KVM_REG_MIPS_COUNT_CTL,
- KVM_REG_MIPS_COUNT_RESUME,
- KVM_REG_MIPS_COUNT_HZ,
};
static u64 kvm_mips_get_one_regs_fpu[] = {
@@ -559,15 +532,6 @@ static u64 kvm_mips_get_one_regs_msa[] = {
KVM_REG_MIPS_MSA_CSR,
};
-static u64 kvm_mips_get_one_regs_kscratch[] = {
- KVM_REG_MIPS_CP0_KSCRATCH1,
- KVM_REG_MIPS_CP0_KSCRATCH2,
- KVM_REG_MIPS_CP0_KSCRATCH3,
- KVM_REG_MIPS_CP0_KSCRATCH4,
- KVM_REG_MIPS_CP0_KSCRATCH5,
- KVM_REG_MIPS_CP0_KSCRATCH6,
-};
-
static unsigned long kvm_mips_num_regs(struct kvm_vcpu *vcpu)
{
unsigned long ret;
@@ -581,7 +545,6 @@ static unsigned long kvm_mips_num_regs(struct kvm_vcpu *vcpu)
}
if (kvm_mips_guest_can_have_msa(&vcpu->arch))
ret += ARRAY_SIZE(kvm_mips_get_one_regs_msa) + 32;
- ret += __arch_hweight8(vcpu->arch.kscratch_enabled);
ret += kvm_mips_callbacks->num_regs(vcpu);
return ret;
@@ -634,16 +597,6 @@ static int kvm_mips_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices)
}
}
- for (i = 0; i < 6; ++i) {
- if (!(vcpu->arch.kscratch_enabled & BIT(i + 2)))
- continue;
-
- if (copy_to_user(indices, &kvm_mips_get_one_regs_kscratch[i],
- sizeof(kvm_mips_get_one_regs_kscratch[i])))
- return -EFAULT;
- ++indices;
- }
-
return kvm_mips_callbacks->copy_reg_indices(vcpu, indices);
}
@@ -734,95 +687,6 @@ static int kvm_mips_get_reg(struct kvm_vcpu *vcpu,
v = fpu->msacsr;
break;
- /* Co-processor 0 registers */
- case KVM_REG_MIPS_CP0_INDEX:
- v = (long)kvm_read_c0_guest_index(cop0);
- break;
- case KVM_REG_MIPS_CP0_CONTEXT:
- v = (long)kvm_read_c0_guest_context(cop0);
- break;
- case KVM_REG_MIPS_CP0_USERLOCAL:
- v = (long)kvm_read_c0_guest_userlocal(cop0);
- break;
- case KVM_REG_MIPS_CP0_PAGEMASK:
- v = (long)kvm_read_c0_guest_pagemask(cop0);
- break;
- case KVM_REG_MIPS_CP0_WIRED:
- v = (long)kvm_read_c0_guest_wired(cop0);
- break;
- case KVM_REG_MIPS_CP0_HWRENA:
- v = (long)kvm_read_c0_guest_hwrena(cop0);
- break;
- case KVM_REG_MIPS_CP0_BADVADDR:
- v = (long)kvm_read_c0_guest_badvaddr(cop0);
- break;
- case KVM_REG_MIPS_CP0_ENTRYHI:
- v = (long)kvm_read_c0_guest_entryhi(cop0);
- break;
- case KVM_REG_MIPS_CP0_COMPARE:
- v = (long)kvm_read_c0_guest_compare(cop0);
- break;
- case KVM_REG_MIPS_CP0_STATUS:
- v = (long)kvm_read_c0_guest_status(cop0);
- break;
- case KVM_REG_MIPS_CP0_CAUSE:
- v = (long)kvm_read_c0_guest_cause(cop0);
- break;
- case KVM_REG_MIPS_CP0_EPC:
- v = (long)kvm_read_c0_guest_epc(cop0);
- break;
- case KVM_REG_MIPS_CP0_PRID:
- v = (long)kvm_read_c0_guest_prid(cop0);
- break;
- case KVM_REG_MIPS_CP0_CONFIG:
- v = (long)kvm_read_c0_guest_config(cop0);
- break;
- case KVM_REG_MIPS_CP0_CONFIG1:
- v = (long)kvm_read_c0_guest_config1(cop0);
- break;
- case KVM_REG_MIPS_CP0_CONFIG2:
- v = (long)kvm_read_c0_guest_config2(cop0);
- break;
- case KVM_REG_MIPS_CP0_CONFIG3:
- v = (long)kvm_read_c0_guest_config3(cop0);
- break;
- case KVM_REG_MIPS_CP0_CONFIG4:
- v = (long)kvm_read_c0_guest_config4(cop0);
- break;
- case KVM_REG_MIPS_CP0_CONFIG5:
- v = (long)kvm_read_c0_guest_config5(cop0);
- break;
- case KVM_REG_MIPS_CP0_CONFIG7:
- v = (long)kvm_read_c0_guest_config7(cop0);
- break;
- case KVM_REG_MIPS_CP0_ERROREPC:
- v = (long)kvm_read_c0_guest_errorepc(cop0);
- break;
- case KVM_REG_MIPS_CP0_KSCRATCH1 ... KVM_REG_MIPS_CP0_KSCRATCH6:
- idx = reg->id - KVM_REG_MIPS_CP0_KSCRATCH1 + 2;
- if (!(vcpu->arch.kscratch_enabled & BIT(idx)))
- return -EINVAL;
- switch (idx) {
- case 2:
- v = (long)kvm_read_c0_guest_kscratch1(cop0);
- break;
- case 3:
- v = (long)kvm_read_c0_guest_kscratch2(cop0);
- break;
- case 4:
- v = (long)kvm_read_c0_guest_kscratch3(cop0);
- break;
- case 5:
- v = (long)kvm_read_c0_guest_kscratch4(cop0);
- break;
- case 6:
- v = (long)kvm_read_c0_guest_kscratch5(cop0);
- break;
- case 7:
- v = (long)kvm_read_c0_guest_kscratch6(cop0);
- break;
- }
- break;
/* registers to be handled specially */
default:
ret = kvm_mips_callbacks->get_one_reg(vcpu, reg, &v);
@@ -954,68 +818,6 @@ static int kvm_mips_set_reg(struct kvm_vcpu *vcpu,
fpu->msacsr = v;
break;
- /* Co-processor 0 registers */
- case KVM_REG_MIPS_CP0_INDEX:
- kvm_write_c0_guest_index(cop0, v);
- break;
- case KVM_REG_MIPS_CP0_CONTEXT:
- kvm_write_c0_guest_context(cop0, v);
- break;
- case KVM_REG_MIPS_CP0_USERLOCAL:
- kvm_write_c0_guest_userlocal(cop0, v);
- break;
- case KVM_REG_MIPS_CP0_PAGEMASK:
- kvm_write_c0_guest_pagemask(cop0, v);
- break;
- case KVM_REG_MIPS_CP0_WIRED:
- kvm_write_c0_guest_wired(cop0, v);
- break;
- case KVM_REG_MIPS_CP0_HWRENA:
- kvm_write_c0_guest_hwrena(cop0, v);
- break;
- case KVM_REG_MIPS_CP0_BADVADDR:
- kvm_write_c0_guest_badvaddr(cop0, v);
- break;
- case KVM_REG_MIPS_CP0_ENTRYHI:
- kvm_write_c0_guest_entryhi(cop0, v);
- break;
- case KVM_REG_MIPS_CP0_STATUS:
- kvm_write_c0_guest_status(cop0, v);
- break;
- case KVM_REG_MIPS_CP0_EPC:
- kvm_write_c0_guest_epc(cop0, v);
- break;
- case KVM_REG_MIPS_CP0_PRID:
- kvm_write_c0_guest_prid(cop0, v);
- break;
- case KVM_REG_MIPS_CP0_ERROREPC:
- kvm_write_c0_guest_errorepc(cop0, v);
- break;
- case KVM_REG_MIPS_CP0_KSCRATCH1 ... KVM_REG_MIPS_CP0_KSCRATCH6:
- idx = reg->id - KVM_REG_MIPS_CP0_KSCRATCH1 + 2;
- if (!(vcpu->arch.kscratch_enabled & BIT(idx)))
- return -EINVAL;
- switch (idx) {
- case 2:
- kvm_write_c0_guest_kscratch1(cop0, v);
- break;
- case 3:
- kvm_write_c0_guest_kscratch2(cop0, v);
- break;
- case 4:
- kvm_write_c0_guest_kscratch3(cop0, v);
- break;
- case 5:
- kvm_write_c0_guest_kscratch4(cop0, v);
- break;
- case 6:
- kvm_write_c0_guest_kscratch5(cop0, v);
- break;
- case 7:
- kvm_write_c0_guest_kscratch6(cop0, v);
- break;
- }
- break;
/* registers to be handled specially */
default:
return kvm_mips_callbacks->set_one_reg(vcpu, reg, v);
diff --git a/arch/mips/kvm/trap_emul.c b/arch/mips/kvm/trap_emul.c
index 001c5fb61049..08327de4323a 100644
--- a/arch/mips/kvm/trap_emul.c
+++ b/arch/mips/kvm/trap_emul.c
@@ -489,8 +489,6 @@ static int kvm_trap_emul_vcpu_init(struct kvm_vcpu *vcpu)
struct mm_struct *kern_mm = &vcpu->arch.guest_kernel_mm;
struct mm_struct *user_mm = &vcpu->arch.guest_user_mm;
- vcpu->arch.kscratch_enabled = 0xfc;
-
/*
* Allocate GVA -> HPA page tables.
* MIPS doesn't use the mm_struct pointer argument.
@@ -640,14 +638,54 @@ static void kvm_trap_emul_flush_shadow_memslot(struct kvm *kvm,
kvm_trap_emul_flush_shadow_all(kvm);
}
+static u64 kvm_trap_emul_get_one_regs[] = {
+ KVM_REG_MIPS_CP0_INDEX,
+ KVM_REG_MIPS_CP0_CONTEXT,
+ KVM_REG_MIPS_CP0_USERLOCAL,
+ KVM_REG_MIPS_CP0_PAGEMASK,
+ KVM_REG_MIPS_CP0_WIRED,
+ KVM_REG_MIPS_CP0_HWRENA,
+ KVM_REG_MIPS_CP0_BADVADDR,
+ KVM_REG_MIPS_CP0_COUNT,
+ KVM_REG_MIPS_CP0_ENTRYHI,
+ KVM_REG_MIPS_CP0_COMPARE,
+ KVM_REG_MIPS_CP0_STATUS,
+ KVM_REG_MIPS_CP0_CAUSE,
+ KVM_REG_MIPS_CP0_EPC,
+ KVM_REG_MIPS_CP0_PRID,
+ KVM_REG_MIPS_CP0_CONFIG,
+ KVM_REG_MIPS_CP0_CONFIG1,
+ KVM_REG_MIPS_CP0_CONFIG2,
+ KVM_REG_MIPS_CP0_CONFIG3,
+ KVM_REG_MIPS_CP0_CONFIG4,
+ KVM_REG_MIPS_CP0_CONFIG5,
+ KVM_REG_MIPS_CP0_CONFIG7,
+ KVM_REG_MIPS_CP0_ERROREPC,
+ KVM_REG_MIPS_CP0_KSCRATCH1,
+ KVM_REG_MIPS_CP0_KSCRATCH2,
+ KVM_REG_MIPS_CP0_KSCRATCH3,
+ KVM_REG_MIPS_CP0_KSCRATCH4,
+ KVM_REG_MIPS_CP0_KSCRATCH5,
+ KVM_REG_MIPS_CP0_KSCRATCH6,
+
+ KVM_REG_MIPS_COUNT_CTL,
+ KVM_REG_MIPS_COUNT_RESUME,
+ KVM_REG_MIPS_COUNT_HZ,
+};
+
static unsigned long kvm_trap_emul_num_regs(struct kvm_vcpu *vcpu)
{
- return 0;
+ return ARRAY_SIZE(kvm_trap_emul_get_one_regs);
}
static int kvm_trap_emul_copy_reg_indices(struct kvm_vcpu *vcpu,
u64 __user *indices)
{
+ if (copy_to_user(indices, kvm_trap_emul_get_one_regs,
+ sizeof(kvm_trap_emul_get_one_regs)))
+ return -EFAULT;
+ indices += ARRAY_SIZE(kvm_trap_emul_get_one_regs);
+
return 0;
}
@@ -655,7 +693,69 @@ static int kvm_trap_emul_get_one_reg(struct kvm_vcpu *vcpu,
const struct kvm_one_reg *reg,
s64 *v)
{
+ struct mips_coproc *cop0 = vcpu->arch.cop0;
+
switch (reg->id) {
+ case KVM_REG_MIPS_CP0_INDEX:
+ *v = (long)kvm_read_c0_guest_index(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_CONTEXT:
+ *v = (long)kvm_read_c0_guest_context(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_USERLOCAL:
+ *v = (long)kvm_read_c0_guest_userlocal(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_PAGEMASK:
+ *v = (long)kvm_read_c0_guest_pagemask(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_WIRED:
+ *v = (long)kvm_read_c0_guest_wired(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_HWRENA:
+ *v = (long)kvm_read_c0_guest_hwrena(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_BADVADDR:
+ *v = (long)kvm_read_c0_guest_badvaddr(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_ENTRYHI:
+ *v = (long)kvm_read_c0_guest_entryhi(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_COMPARE:
+ *v = (long)kvm_read_c0_guest_compare(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_STATUS:
+ *v = (long)kvm_read_c0_guest_status(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_CAUSE:
+ *v = (long)kvm_read_c0_guest_cause(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_EPC:
+ *v = (long)kvm_read_c0_guest_epc(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_PRID:
+ *v = (long)kvm_read_c0_guest_prid(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_CONFIG:
+ *v = (long)kvm_read_c0_guest_config(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_CONFIG1:
+ *v = (long)kvm_read_c0_guest_config1(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_CONFIG2:
+ *v = (long)kvm_read_c0_guest_config2(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_CONFIG3:
+ *v = (long)kvm_read_c0_guest_config3(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_CONFIG4:
+ *v = (long)kvm_read_c0_guest_config4(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_CONFIG5:
+ *v = (long)kvm_read_c0_guest_config5(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_CONFIG7:
+ *v = (long)kvm_read_c0_guest_config7(cop0);
+ break;
case KVM_REG_MIPS_CP0_COUNT:
*v = kvm_mips_read_count(vcpu);
break;
@@ -668,6 +768,27 @@ static int kvm_trap_emul_get_one_reg(struct kvm_vcpu *vcpu,
case KVM_REG_MIPS_COUNT_HZ:
*v = vcpu->arch.count_hz;
break;
+ case KVM_REG_MIPS_CP0_ERROREPC:
+ *v = (long)kvm_read_c0_guest_errorepc(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_KSCRATCH1:
+ *v = (long)kvm_read_c0_guest_kscratch1(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_KSCRATCH2:
+ *v = (long)kvm_read_c0_guest_kscratch2(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_KSCRATCH3:
+ *v = (long)kvm_read_c0_guest_kscratch3(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_KSCRATCH4:
+ *v = (long)kvm_read_c0_guest_kscratch4(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_KSCRATCH5:
+ *v = (long)kvm_read_c0_guest_kscratch5(cop0);
+ break;
+ case KVM_REG_MIPS_CP0_KSCRATCH6:
+ *v = (long)kvm_read_c0_guest_kscratch6(cop0);
+ break;
default:
return -EINVAL;
}
@@ -683,6 +804,39 @@ static int kvm_trap_emul_set_one_reg(struct kvm_vcpu *vcpu,
unsigned int cur, change;
switch (reg->id) {
+ case KVM_REG_MIPS_CP0_INDEX:
+ kvm_write_c0_guest_index(cop0, v);
+ break;
+ case KVM_REG_MIPS_CP0_CONTEXT:
+ kvm_write_c0_guest_context(cop0, v);
+ break;
+ case KVM_REG_MIPS_CP0_USERLOCAL:
+ kvm_write_c0_guest_userlocal(cop0, v);
+ break;
+ case KVM_REG_MIPS_CP0_PAGEMASK:
+ kvm_write_c0_guest_pagemask(cop0, v);
+ break;
+ case KVM_REG_MIPS_CP0_WIRED:
+ kvm_write_c0_guest_wired(cop0, v);
+ break;
+ case KVM_REG_MIPS_CP0_HWRENA:
+ kvm_write_c0_guest_hwrena(cop0, v);
+ break;
+ case KVM_REG_MIPS_CP0_BADVADDR:
+ kvm_write_c0_guest_badvaddr(cop0, v);
+ break;
+ case KVM_REG_MIPS_CP0_ENTRYHI:
+ kvm_write_c0_guest_entryhi(cop0, v);
+ break;
+ case KVM_REG_MIPS_CP0_STATUS:
+ kvm_write_c0_guest_status(cop0, v);
+ break;
+ case KVM_REG_MIPS_CP0_EPC:
+ kvm_write_c0_guest_epc(cop0, v);
+ break;
+ case KVM_REG_MIPS_CP0_PRID:
+ kvm_write_c0_guest_prid(cop0, v);
+ break;
case KVM_REG_MIPS_CP0_COUNT:
kvm_mips_write_count(vcpu, v);
break;
@@ -759,6 +913,27 @@ static int kvm_trap_emul_set_one_reg(struct kvm_vcpu *vcpu,
case KVM_REG_MIPS_COUNT_HZ:
ret = kvm_mips_set_count_hz(vcpu, v);
break;
+ case KVM_REG_MIPS_CP0_ERROREPC:
+ kvm_write_c0_guest_errorepc(cop0, v);
+ break;
+ case KVM_REG_MIPS_CP0_KSCRATCH1:
+ kvm_write_c0_guest_kscratch1(cop0, v);
+ break;
+ case KVM_REG_MIPS_CP0_KSCRATCH2:
+ kvm_write_c0_guest_kscratch2(cop0, v);
+ break;
+ case KVM_REG_MIPS_CP0_KSCRATCH3:
+ kvm_write_c0_guest_kscratch3(cop0, v);
+ break;
+ case KVM_REG_MIPS_CP0_KSCRATCH4:
+ kvm_write_c0_guest_kscratch4(cop0, v);
+ break;
+ case KVM_REG_MIPS_CP0_KSCRATCH5:
+ kvm_write_c0_guest_kscratch5(cop0, v);
+ break;
+ case KVM_REG_MIPS_CP0_KSCRATCH6:
+ kvm_write_c0_guest_kscratch6(cop0, v);
+ break;
default:
return -EINVAL;
}