diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 387f4c7dad9fe8c2a99879a8ab8b8d3675d2c651..a9d1072dcbec44ac892a99d8854af9dc437d9ffe 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -1836,6 +1836,7 @@ registers, find a list below: PPC | KVM_REG_PPC_ACOP | 64 PPC | KVM_REG_PPC_VRSAVE | 32 PPC | KVM_REG_PPC_LPCR | 64 + PPC | KVM_REG_PPC_PPR | 64 PPC | KVM_REG_PPC_TM_GPR0 | 64 ... PPC | KVM_REG_PPC_TM_GPR31 | 64 diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h index cca12f08484201aaf86a16920a2edcf7921a6fd5..402c1c466509df65244c4cfeb0aa970d4b88f6ca 100644 --- a/arch/powerpc/include/asm/exception-64s.h +++ b/arch/powerpc/include/asm/exception-64s.h @@ -204,6 +204,10 @@ do_kvm_##n: \ ld r10,area+EX_CFAR(r13); \ std r10,HSTATE_CFAR(r13); \ END_FTR_SECTION_NESTED(CPU_FTR_CFAR,CPU_FTR_CFAR,947); \ + BEGIN_FTR_SECTION_NESTED(948) \ + ld r10,area+EX_PPR(r13); \ + std r10,HSTATE_PPR(r13); \ + END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,948); \ ld r10,area+EX_R10(r13); \ stw r9,HSTATE_SCRATCH1(r13); \ ld r9,area+EX_R9(r13); \ @@ -217,6 +221,10 @@ do_kvm_##n: \ ld r10,area+EX_R10(r13); \ beq 89f; \ stw r9,HSTATE_SCRATCH1(r13); \ + BEGIN_FTR_SECTION_NESTED(948) \ + ld r9,area+EX_PPR(r13); \ + std r9,HSTATE_PPR(r13); \ + END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,948); \ ld r9,area+EX_R9(r13); \ std r12,HSTATE_SCRATCH0(r13); \ li r12,n; \ diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h index 9039d3c97eecd2a5324ab759c7511d448ed1a49c..22f46061ae84bef86913a3a341e899e9f8233be9 100644 --- a/arch/powerpc/include/asm/kvm_book3s_asm.h +++ b/arch/powerpc/include/asm/kvm_book3s_asm.h @@ -101,6 +101,7 @@ struct kvmppc_host_state { #endif #ifdef CONFIG_PPC_BOOK3S_64 u64 cfar; + u64 ppr; #endif }; diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h index 6eabffcb1c3cd322814e8c1d2e2d0f7021386e63..4934e13fb23c674dcc2fb786c79608d19cebbe42 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -460,6 +460,7 @@ struct kvm_vcpu_arch { u32 ctrl; ulong dabr; ulong cfar; + ulong ppr; #endif u32 vrsave; /* also USPRG0 */ u32 mmucr; diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h index e42127d1ae8eacc96fe41185b186e04fbe6d6ccf..fab6bc1f8e901d7f24a14da8c902bc713328183d 100644 --- a/arch/powerpc/include/uapi/asm/kvm.h +++ b/arch/powerpc/include/uapi/asm/kvm.h @@ -534,6 +534,7 @@ struct kvm_get_htab_header { #define KVM_REG_PPC_VRSAVE (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xb4) #define KVM_REG_PPC_LPCR (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xb5) +#define KVM_REG_PPC_PPR (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb6) /* Transactional Memory checkpointed state: * This is all GPRs, all VSX regs and a subset of SPRs diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index fd7513f8014bfccdad8dd9ad885e3acf1fddf0b7..5fda4ef489ad746885d236931c6a3d8277b8715d 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -519,6 +519,7 @@ int main(void) DEFINE(VCPU_TRAP, offsetof(struct kvm_vcpu, arch.trap)); DEFINE(VCPU_PTID, offsetof(struct kvm_vcpu, arch.ptid)); DEFINE(VCPU_CFAR, offsetof(struct kvm_vcpu, arch.cfar)); + DEFINE(VCPU_PPR, offsetof(struct kvm_vcpu, arch.ppr)); DEFINE(VCORE_ENTRY_EXIT, offsetof(struct kvmppc_vcore, entry_exit_count)); DEFINE(VCORE_NAP_COUNT, offsetof(struct kvmppc_vcore, nap_count)); DEFINE(VCORE_IN_GUEST, offsetof(struct kvmppc_vcore, in_guest)); @@ -604,6 +605,7 @@ int main(void) #ifdef CONFIG_PPC_BOOK3S_64 HSTATE_FIELD(HSTATE_CFAR, cfar); + HSTATE_FIELD(HSTATE_PPR, ppr); #endif /* CONFIG_PPC_BOOK3S_64 */ #else /* CONFIG_PPC_BOOK3S */ diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 36eb95cc48ae7516ed981c8713119cd888966747..2a0e38feec1d51ba633a920d0a5ede6552978229 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -823,6 +823,9 @@ int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val) case KVM_REG_PPC_LPCR: *val = get_reg_val(id, vcpu->arch.vcore->lpcr); break; + case KVM_REG_PPC_PPR: + *val = get_reg_val(id, vcpu->arch.ppr); + break; default: r = -EINVAL; break; @@ -930,6 +933,9 @@ int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val) case KVM_REG_PPC_LPCR: kvmppc_set_lpcr(vcpu, set_reg_val(id, *val)); break; + case KVM_REG_PPC_PPR: + vcpu->arch.ppr = set_reg_val(id, *val); + break; default: r = -EINVAL; break; diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index 295fd58af39ac6461440cde6625495ae69ad4424..a81979becf41dc097d2a5fa3e22256264eb7d8c9 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -717,13 +717,15 @@ BEGIN_FTR_SECTION ld r5, VCPU_CFAR(r4) mtspr SPRN_CFAR, r5 END_FTR_SECTION_IFSET(CPU_FTR_CFAR) +BEGIN_FTR_SECTION + ld r0, VCPU_PPR(r4) +END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR) ld r5, VCPU_LR(r4) lwz r6, VCPU_CR(r4) mtlr r5 mtcr r6 - ld r0, VCPU_GPR(R0)(r4) ld r1, VCPU_GPR(R1)(r4) ld r2, VCPU_GPR(R2)(r4) ld r3, VCPU_GPR(R3)(r4) @@ -737,6 +739,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_CFAR) ld r12, VCPU_GPR(R12)(r4) ld r13, VCPU_GPR(R13)(r4) +BEGIN_FTR_SECTION + mtspr SPRN_PPR, r0 +END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR) + ld r0, VCPU_GPR(R0)(r4) ld r4, VCPU_GPR(R4)(r4) hrfid @@ -787,6 +793,10 @@ BEGIN_FTR_SECTION ld r3, HSTATE_CFAR(r13) std r3, VCPU_CFAR(r9) END_FTR_SECTION_IFSET(CPU_FTR_CFAR) +BEGIN_FTR_SECTION + ld r4, HSTATE_PPR(r13) + std r4, VCPU_PPR(r9) +END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR) /* Restore R1/R2 so we can handle faults */ ld r1, HSTATE_HOST_R1(r13)