diff options
author | James Hogan <james.hogan@imgtec.com> | 2016-06-14 09:40:10 +0100 |
---|---|---|
committer | Paolo Bonzini <pbonzini@redhat.com> | 2016-06-14 11:02:48 +0200 |
commit | f943176a7205a064da05f81fc94dccc4c7379010 (patch) | |
tree | 4dcb7e1af560631bbb2cc63664098819fd5a4437 /arch/mips/kvm | |
parent | 35fec26242bd3ff5a770789185852d27b44ffaec (diff) |
MIPS: KVM: Generalise fpu_inuse for other state
Rename fpu_inuse and the related definitions to aux_inuse so it can be
used for lazy context management of other auxiliary processor state too,
such as VZ guest timer, watchpoints and performance counters.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/mips/kvm')
-rw-r--r-- | arch/mips/kvm/emulate.c | 8 | ||||
-rw-r--r-- | arch/mips/kvm/mips.c | 38 |
2 files changed, 23 insertions, 23 deletions
diff --git a/arch/mips/kvm/emulate.c b/arch/mips/kvm/emulate.c index 5b89c0803405..8647bd97b934 100644 --- a/arch/mips/kvm/emulate.c +++ b/arch/mips/kvm/emulate.c @@ -1154,7 +1154,7 @@ enum emulation_result kvm_mips_emulate_CP0(u32 inst, u32 *opc, u32 cause, * it first. */ if (change & ST0_CU1 && !(val & ST0_FR) && - vcpu->arch.fpu_inuse & KVM_MIPS_FPU_MSA) + vcpu->arch.aux_inuse & KVM_MIPS_AUX_MSA) kvm_lose_fpu(vcpu); /* @@ -1165,7 +1165,7 @@ enum emulation_result kvm_mips_emulate_CP0(u32 inst, u32 *opc, u32 cause, * the near future. */ if (change & ST0_CU1 && - vcpu->arch.fpu_inuse & KVM_MIPS_FPU_FPU) + vcpu->arch.aux_inuse & KVM_MIPS_AUX_FPU) change_c0_status(ST0_CU1, val); preempt_enable(); @@ -1200,7 +1200,7 @@ enum emulation_result kvm_mips_emulate_CP0(u32 inst, u32 *opc, u32 cause, * context is already loaded. */ if (change & MIPS_CONF5_FRE && - vcpu->arch.fpu_inuse & KVM_MIPS_FPU_FPU) + vcpu->arch.aux_inuse & KVM_MIPS_AUX_FPU) change_c0_config5(MIPS_CONF5_FRE, val); /* @@ -1210,7 +1210,7 @@ enum emulation_result kvm_mips_emulate_CP0(u32 inst, u32 *opc, u32 cause, * quickly enabled again in the near future. */ if (change & MIPS_CONF5_MSAEN && - vcpu->arch.fpu_inuse & KVM_MIPS_FPU_MSA) + vcpu->arch.aux_inuse & KVM_MIPS_AUX_MSA) change_c0_config5(MIPS_CONF5_MSAEN, val); diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c index 6e753761b5d6..9093262ff3ce 100644 --- a/arch/mips/kvm/mips.c +++ b/arch/mips/kvm/mips.c @@ -1447,7 +1447,7 @@ void kvm_own_fpu(struct kvm_vcpu *vcpu) * not to clobber the status register directly via the commpage. */ if (cpu_has_msa && sr & ST0_CU1 && !(sr & ST0_FR) && - vcpu->arch.fpu_inuse & KVM_MIPS_FPU_MSA) + vcpu->arch.aux_inuse & KVM_MIPS_AUX_MSA) kvm_lose_fpu(vcpu); /* @@ -1462,9 +1462,9 @@ void kvm_own_fpu(struct kvm_vcpu *vcpu) enable_fpu_hazard(); /* If guest FPU state not active, restore it now */ - if (!(vcpu->arch.fpu_inuse & KVM_MIPS_FPU_FPU)) { + if (!(vcpu->arch.aux_inuse & KVM_MIPS_AUX_FPU)) { __kvm_restore_fpu(&vcpu->arch); - vcpu->arch.fpu_inuse |= KVM_MIPS_FPU_FPU; + vcpu->arch.aux_inuse |= KVM_MIPS_AUX_FPU; } preempt_enable(); @@ -1491,8 +1491,8 @@ void kvm_own_msa(struct kvm_vcpu *vcpu) * interacts with MSA state, so play it safe and save it first. */ if (!(sr & ST0_FR) && - (vcpu->arch.fpu_inuse & (KVM_MIPS_FPU_FPU | - KVM_MIPS_FPU_MSA)) == KVM_MIPS_FPU_FPU) + (vcpu->arch.aux_inuse & (KVM_MIPS_AUX_FPU | + KVM_MIPS_AUX_MSA)) == KVM_MIPS_AUX_FPU) kvm_lose_fpu(vcpu); change_c0_status(ST0_CU1 | ST0_FR, sr); @@ -1506,20 +1506,20 @@ void kvm_own_msa(struct kvm_vcpu *vcpu) set_c0_config5(MIPS_CONF5_MSAEN); enable_fpu_hazard(); - switch (vcpu->arch.fpu_inuse & (KVM_MIPS_FPU_FPU | KVM_MIPS_FPU_MSA)) { - case KVM_MIPS_FPU_FPU: + switch (vcpu->arch.aux_inuse & (KVM_MIPS_AUX_FPU | KVM_MIPS_AUX_MSA)) { + case KVM_MIPS_AUX_FPU: /* * Guest FPU state already loaded, only restore upper MSA state */ __kvm_restore_msa_upper(&vcpu->arch); - vcpu->arch.fpu_inuse |= KVM_MIPS_FPU_MSA; + vcpu->arch.aux_inuse |= KVM_MIPS_AUX_MSA; break; case 0: /* Neither FPU or MSA already active, restore full MSA state */ __kvm_restore_msa(&vcpu->arch); - vcpu->arch.fpu_inuse |= KVM_MIPS_FPU_MSA; + vcpu->arch.aux_inuse |= KVM_MIPS_AUX_MSA; if (kvm_mips_guest_has_fpu(&vcpu->arch)) - vcpu->arch.fpu_inuse |= KVM_MIPS_FPU_FPU; + vcpu->arch.aux_inuse |= KVM_MIPS_AUX_FPU; break; default: break; @@ -1533,13 +1533,13 @@ void kvm_own_msa(struct kvm_vcpu *vcpu) void kvm_drop_fpu(struct kvm_vcpu *vcpu) { preempt_disable(); - if (cpu_has_msa && vcpu->arch.fpu_inuse & KVM_MIPS_FPU_MSA) { + if (cpu_has_msa && vcpu->arch.aux_inuse & KVM_MIPS_AUX_MSA) { disable_msa(); - vcpu->arch.fpu_inuse &= ~KVM_MIPS_FPU_MSA; + vcpu->arch.aux_inuse &= ~KVM_MIPS_AUX_MSA; } - if (vcpu->arch.fpu_inuse & KVM_MIPS_FPU_FPU) { + if (vcpu->arch.aux_inuse & KVM_MIPS_AUX_FPU) { clear_c0_status(ST0_CU1 | ST0_FR); - vcpu->arch.fpu_inuse &= ~KVM_MIPS_FPU_FPU; + vcpu->arch.aux_inuse &= ~KVM_MIPS_AUX_FPU; } preempt_enable(); } @@ -1555,7 +1555,7 @@ void kvm_lose_fpu(struct kvm_vcpu *vcpu) */ preempt_disable(); - if (cpu_has_msa && vcpu->arch.fpu_inuse & KVM_MIPS_FPU_MSA) { + if (cpu_has_msa && vcpu->arch.aux_inuse & KVM_MIPS_AUX_MSA) { set_c0_config5(MIPS_CONF5_MSAEN); enable_fpu_hazard(); @@ -1563,17 +1563,17 @@ void kvm_lose_fpu(struct kvm_vcpu *vcpu) /* Disable MSA & FPU */ disable_msa(); - if (vcpu->arch.fpu_inuse & KVM_MIPS_FPU_FPU) { + if (vcpu->arch.aux_inuse & KVM_MIPS_AUX_FPU) { clear_c0_status(ST0_CU1 | ST0_FR); disable_fpu_hazard(); } - vcpu->arch.fpu_inuse &= ~(KVM_MIPS_FPU_FPU | KVM_MIPS_FPU_MSA); - } else if (vcpu->arch.fpu_inuse & KVM_MIPS_FPU_FPU) { + vcpu->arch.aux_inuse &= ~(KVM_MIPS_AUX_FPU | KVM_MIPS_AUX_MSA); + } else if (vcpu->arch.aux_inuse & KVM_MIPS_AUX_FPU) { set_c0_status(ST0_CU1); enable_fpu_hazard(); __kvm_save_fpu(&vcpu->arch); - vcpu->arch.fpu_inuse &= ~KVM_MIPS_FPU_FPU; + vcpu->arch.aux_inuse &= ~KVM_MIPS_AUX_FPU; /* Disable FPU */ clear_c0_status(ST0_CU1 | ST0_FR); |