From: Arnd Bergmann <arnd@xxxxxxxx> Support for KVM on 32-bit Book III-s implementations was added in 2010 and supports PowerMac, CHRP, and embedded platforms using the Freescale G4 (mpc74xx), e300 (mpc83xx) and e600 (mpc86xx) CPUs from 2003 to 2009. Earlier 603/604/750 machines might work but would be even more limited by their available memory. The only likely users of KVM on any of these were the final Apple PowerMac/PowerBook/iBook G4 models with 2GB of RAM that were at the high end 20 years ago but are just as obsolete as their x86-32 counterparts. The code has been orphaned since 2023. There is still a need to support 32-bit guests in order to better debug problems on ppc32 kernels. This should work in theory on both 64-bit booke and on 64-bit book3s hosts, but it would be good to confirm that this is still the case before the known working option gets removed. Link: https://lore.kernel.org/lkml/CE1F96B2-7213-4352-B80F-6E669F5EED97@xxxxxxxxxxxxxxx/ Cc: "A. Wilcox" <AWilcox@xxxxxxxxxxxxxxx> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- MAINTAINERS | 2 +- arch/powerpc/include/asm/kvm_book3s.h | 17 --- arch/powerpc/include/asm/kvm_book3s_asm.h | 10 -- arch/powerpc/include/asm/kvm_host.h | 2 +- arch/powerpc/include/asm/kvm_ppc.h | 2 +- arch/powerpc/include/asm/processor.h | 3 - arch/powerpc/kernel/asm-offsets.c | 21 +--- arch/powerpc/kernel/head_32.h | 10 -- arch/powerpc/kernel/head_book3s_32.S | 5 - arch/powerpc/kvm/Kconfig | 22 ---- arch/powerpc/kvm/Makefile | 15 --- arch/powerpc/kvm/book3s.c | 18 ---- arch/powerpc/kvm/book3s_emulate.c | 37 ------- arch/powerpc/kvm/book3s_interrupts.S | 11 -- arch/powerpc/kvm/book3s_mmu_hpte.c | 12 --- arch/powerpc/kvm/book3s_pr.c | 122 +--------------------- arch/powerpc/kvm/book3s_rmhandlers.S | 110 ------------------- arch/powerpc/kvm/book3s_segment.S | 30 +----- arch/powerpc/kvm/emulate.c | 2 - arch/powerpc/kvm/powerpc.c | 2 - 20 files changed, 7 insertions(+), 446 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index 52ba21efdd65..d9a20d934d95 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12717,7 +12717,7 @@ L: linuxppc-dev@xxxxxxxxxxxxxxxx L: kvm@xxxxxxxxxxxxxxx S: Maintained (Book3S 64-bit HV) S: Odd fixes (Book3S 64-bit PR) -S: Orphan (Book3E and 32-bit) +S: Orphan (Book3E) T: git git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git topic/ppc-kvm F: arch/powerpc/include/asm/kvm* F: arch/powerpc/include/uapi/asm/kvm* diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index e1ff291ba891..7e13e48dbc6b 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -36,21 +36,14 @@ struct kvmppc_sid_map { #define SID_MAP_NUM (1 << SID_MAP_BITS) #define SID_MAP_MASK (SID_MAP_NUM - 1) -#ifdef CONFIG_PPC_BOOK3S_64 #define SID_CONTEXTS 1 -#else -#define SID_CONTEXTS 128 -#define VSID_POOL_SIZE (SID_CONTEXTS * 16) -#endif struct hpte_cache { struct hlist_node list_pte; struct hlist_node list_pte_long; struct hlist_node list_vpte; struct hlist_node list_vpte_long; -#ifdef CONFIG_PPC_BOOK3S_64 struct hlist_node list_vpte_64k; -#endif struct rcu_head rcu_head; u64 host_vpn; u64 pfn; @@ -112,14 +105,9 @@ struct kvmppc_vcpu_book3s { u64 hior; u64 msr_mask; u64 vtb; -#ifdef CONFIG_PPC_BOOK3S_32 - u32 vsid_pool[VSID_POOL_SIZE]; - u32 vsid_next; -#else u64 proto_vsid_first; u64 proto_vsid_max; u64 proto_vsid_next; -#endif int context_id[SID_CONTEXTS]; bool hior_explicit; /* HIOR is set by ioctl, not PVR */ @@ -128,9 +116,7 @@ struct kvmppc_vcpu_book3s { struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG]; struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE]; struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG]; -#ifdef CONFIG_PPC_BOOK3S_64 struct hlist_head hpte_hash_vpte_64k[HPTEG_HASH_NUM_VPTE_64K]; -#endif int hpte_cache_count; spinlock_t mmu_lock; }; @@ -391,9 +377,6 @@ static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu) /* Also add subarch specific defines */ -#ifdef CONFIG_KVM_BOOK3S_32_HANDLER -#include <asm/kvm_book3s_32.h> -#endif #ifdef CONFIG_KVM_BOOK3S_64_HANDLER #include <asm/kvm_book3s_64.h> #endif diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h index a36797938620..98174363946e 100644 --- a/arch/powerpc/include/asm/kvm_book3s_asm.h +++ b/arch/powerpc/include/asm/kvm_book3s_asm.h @@ -113,11 +113,9 @@ struct kvmppc_host_state { u64 dec_expires; struct kvm_split_mode *kvm_split_mode; #endif -#ifdef CONFIG_PPC_BOOK3S_64 u64 cfar; u64 ppr; u64 host_fscr; -#endif }; struct kvmppc_book3s_shadow_vcpu { @@ -134,20 +132,12 @@ struct kvmppc_book3s_shadow_vcpu { u32 fault_dsisr; u32 last_inst; -#ifdef CONFIG_PPC_BOOK3S_32 - u32 sr[16]; /* Guest SRs */ - - struct kvmppc_host_state hstate; -#endif - -#ifdef CONFIG_PPC_BOOK3S_64 u8 slb_max; /* highest used guest slb entry */ struct { u64 esid; u64 vsid; } slb[64]; /* guest SLB */ u64 shadow_fscr; -#endif }; #endif /*__ASSEMBLY__ */ diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h index 6e1108f8fce6..56b01a135fcb 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -793,7 +793,7 @@ struct kvm_vcpu_arch { struct machine_check_event mce_evt; /* Valid if trap == 0x200 */ struct kvm_vcpu_arch_shared *shared; -#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE) +#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE bool shared_big_endian; #endif unsigned long magic_page_pa; /* phys addr to map the magic page to */ diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h index ca3829d47ab7..001cd00d18f0 100644 --- a/arch/powerpc/include/asm/kvm_ppc.h +++ b/arch/powerpc/include/asm/kvm_ppc.h @@ -951,7 +951,7 @@ static inline void kvmppc_mmu_flush_icache(kvm_pfn_t pfn) */ static inline bool kvmppc_shared_big_endian(struct kvm_vcpu *vcpu) { -#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE) +#if defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE) /* Only Book3S_64 PR supports bi-endian for now */ return vcpu->arch.shared_big_endian; #elif defined(CONFIG_PPC_BOOK3S_64) && defined(__LITTLE_ENDIAN__) diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index 6b94de17201c..d77092554788 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -223,9 +223,6 @@ struct thread_struct { struct thread_vr_state ckvr_state; /* Checkpointed VR state */ unsigned long ckvrsave; /* Checkpointed VRSAVE */ #endif /* CONFIG_PPC_TRANSACTIONAL_MEM */ -#ifdef CONFIG_KVM_BOOK3S_32_HANDLER - void* kvm_shadow_vcpu; /* KVM internal data */ -#endif /* CONFIG_KVM_BOOK3S_32_HANDLER */ #if defined(CONFIG_KVM) && defined(CONFIG_BOOKE) struct kvm_vcpu *kvm_vcpu; #endif diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 7a390bd4f4af..c4186061694c 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -147,9 +147,6 @@ int main(void) OFFSET(THREAD_USED_SPE, thread_struct, used_spe); #endif /* CONFIG_SPE */ #endif /* CONFIG_PPC64 */ -#ifdef CONFIG_KVM_BOOK3S_32_HANDLER - OFFSET(THREAD_KVM_SVCPU, thread_struct, kvm_shadow_vcpu); -#endif #if defined(CONFIG_KVM) && defined(CONFIG_BOOKE) OFFSET(THREAD_KVM_VCPU, thread_struct, kvm_vcpu); #endif @@ -401,7 +398,7 @@ int main(void) OFFSET(VCPU_SHARED, kvm_vcpu, arch.shared); OFFSET(VCPU_SHARED_MSR, kvm_vcpu_arch_shared, msr); OFFSET(VCPU_SHADOW_MSR, kvm_vcpu, arch.shadow_msr); -#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE) +#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE OFFSET(VCPU_SHAREDBE, kvm_vcpu, arch.shared_big_endian); #endif @@ -511,19 +508,13 @@ int main(void) OFFSET(VCPU_TAR_TM, kvm_vcpu, arch.tar_tm); #endif -#ifdef CONFIG_PPC_BOOK3S_64 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE OFFSET(PACA_SVCPU, paca_struct, shadow_vcpu); # define SVCPU_FIELD(x, f) DEFINE(x, offsetof(struct paca_struct, shadow_vcpu.f)) #else # define SVCPU_FIELD(x, f) #endif -# define HSTATE_FIELD(x, f) DEFINE(x, offsetof(struct paca_struct, kvm_hstate.f)) -#else /* 32-bit */ -# define SVCPU_FIELD(x, f) DEFINE(x, offsetof(struct kvmppc_book3s_shadow_vcpu, f)) -# define HSTATE_FIELD(x, f) DEFINE(x, offsetof(struct kvmppc_book3s_shadow_vcpu, hstate.f)) -#endif - +#define HSTATE_FIELD(x, f) DEFINE(x, offsetof(struct paca_struct, kvm_hstate.f)) SVCPU_FIELD(SVCPU_CR, cr); SVCPU_FIELD(SVCPU_XER, xer); SVCPU_FIELD(SVCPU_CTR, ctr); @@ -547,14 +538,9 @@ int main(void) SVCPU_FIELD(SVCPU_FAULT_DAR, fault_dar); SVCPU_FIELD(SVCPU_LAST_INST, last_inst); SVCPU_FIELD(SVCPU_SHADOW_SRR1, shadow_srr1); -#ifdef CONFIG_PPC_BOOK3S_32 - SVCPU_FIELD(SVCPU_SR, sr); -#endif -#ifdef CONFIG_PPC64 SVCPU_FIELD(SVCPU_SLB, slb); SVCPU_FIELD(SVCPU_SLB_MAX, slb_max); SVCPU_FIELD(SVCPU_SHADOW_FSCR, shadow_fscr); -#endif HSTATE_FIELD(HSTATE_HOST_R1, host_r1); HSTATE_FIELD(HSTATE_HOST_R2, host_r2); @@ -601,12 +587,9 @@ int main(void) OFFSET(KVM_SPLIT_NAPPED, kvm_split_mode, napped); #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */ -#ifdef CONFIG_PPC_BOOK3S_64 HSTATE_FIELD(HSTATE_CFAR, cfar); HSTATE_FIELD(HSTATE_PPR, ppr); HSTATE_FIELD(HSTATE_HOST_FSCR, host_fscr); -#endif /* CONFIG_PPC_BOOK3S_64 */ - #else /* CONFIG_PPC_BOOK3S */ OFFSET(VCPU_CR, kvm_vcpu, arch.regs.ccr); OFFSET(VCPU_XER, kvm_vcpu, arch.regs.xer); diff --git a/arch/powerpc/kernel/head_32.h b/arch/powerpc/kernel/head_32.h index 9cba7dbf58dd..6a9bf5762d72 100644 --- a/arch/powerpc/kernel/head_32.h +++ b/arch/powerpc/kernel/head_32.h @@ -168,21 +168,11 @@ _ASM_NOKPROBE_SYMBOL(\name\()_virt) /* * Exception vectors. */ -#ifdef CONFIG_PPC_BOOK3S #define START_EXCEPTION(n, label) \ __HEAD; \ . = n; \ - DO_KVM n; \ label: -#else -#define START_EXCEPTION(n, label) \ - __HEAD; \ - . = n; \ -label: - -#endif - #define EXCEPTION(n, label, hdlr) \ START_EXCEPTION(n, label) \ EXCEPTION_PROLOG n label; \ diff --git a/arch/powerpc/kernel/head_book3s_32.S b/arch/powerpc/kernel/head_book3s_32.S index cb2bca76be53..505d0009ddc9 100644 --- a/arch/powerpc/kernel/head_book3s_32.S +++ b/arch/powerpc/kernel/head_book3s_32.S @@ -30,7 +30,6 @@ #include <asm/asm-offsets.h> #include <asm/ptrace.h> #include <asm/bug.h> -#include <asm/kvm_book3s_asm.h> #include <asm/feature-fixups.h> #include <asm/interrupt.h> @@ -861,10 +860,6 @@ END_MMU_FTR_SECTION_IFCLR(MMU_FTR_HPTE_TABLE) rfi #endif /* CONFIG_SMP */ -#ifdef CONFIG_KVM_BOOK3S_HANDLER -#include "../kvm/book3s_rmhandlers.S" -#endif - /* * Load stuff into the MMU. Intended to be called with * IR=0 and DR=0. diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig index e2230ea512cf..d0a6e2f6df81 100644 --- a/arch/powerpc/kvm/Kconfig +++ b/arch/powerpc/kvm/Kconfig @@ -27,11 +27,6 @@ config KVM config KVM_BOOK3S_HANDLER bool -config KVM_BOOK3S_32_HANDLER - bool - select KVM_BOOK3S_HANDLER - select KVM_MMIO - config KVM_BOOK3S_64_HANDLER bool select KVM_BOOK3S_HANDLER @@ -44,23 +39,6 @@ config KVM_BOOK3S_PR_POSSIBLE config KVM_BOOK3S_HV_POSSIBLE bool -config KVM_BOOK3S_32 - tristate "KVM support for PowerPC book3s_32 processors" - depends on PPC_BOOK3S_32 && !SMP && !PTE_64BIT - depends on !CONTEXT_TRACKING_USER - select KVM - select KVM_BOOK3S_32_HANDLER - select KVM_BOOK3S_PR_POSSIBLE - select PPC_FPU - help - Support running unmodified book3s_32 guest kernels - in virtual machines on book3s_32 host processors. - - This module provides access to the hardware capabilities through - a character device node named /dev/kvm. - - If unsure, say N. - config KVM_BOOK3S_64 tristate "KVM support for PowerPC book3s_64 processors" depends on PPC_BOOK3S_64 diff --git a/arch/powerpc/kvm/Makefile b/arch/powerpc/kvm/Makefile index 294f27439f7f..059b4c153d97 100644 --- a/arch/powerpc/kvm/Makefile +++ b/arch/powerpc/kvm/Makefile @@ -95,27 +95,12 @@ kvm-book3s_64-module-objs := \ kvm-objs-$(CONFIG_KVM_BOOK3S_64) := $(kvm-book3s_64-module-objs) -kvm-book3s_32-objs := \ - $(common-objs-y) \ - emulate.o \ - fpu.o \ - book3s_paired_singles.o \ - book3s.o \ - book3s_pr.o \ - book3s_emulate.o \ - book3s_interrupts.o \ - book3s_mmu_hpte.o \ - book3s_32_mmu_host.o \ - book3s_32_mmu.o -kvm-objs-$(CONFIG_KVM_BOOK3S_32) := $(kvm-book3s_32-objs) - kvm-objs-$(CONFIG_KVM_MPIC) += mpic.o kvm-y += $(kvm-objs-m) $(kvm-objs-y) obj-$(CONFIG_KVM_E500MC) += kvm.o obj-$(CONFIG_KVM_BOOK3S_64) += kvm.o -obj-$(CONFIG_KVM_BOOK3S_32) += kvm.o obj-$(CONFIG_KVM_BOOK3S_64_PR) += kvm-pr.o obj-$(CONFIG_KVM_BOOK3S_64_HV) += kvm-hv.o diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index d79c5d1098c0..75f4d397114f 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -898,12 +898,9 @@ bool kvm_test_age_gfn(struct kvm *kvm, struct kvm_gfn_range *range) int kvmppc_core_init_vm(struct kvm *kvm) { - -#ifdef CONFIG_PPC64 INIT_LIST_HEAD_RCU(&kvm->arch.spapr_tce_tables); INIT_LIST_HEAD(&kvm->arch.rtas_tokens); mutex_init(&kvm->arch.rtas_token_lock); -#endif return kvm->arch.kvm_ops->init_vm(kvm); } @@ -912,10 +909,8 @@ void kvmppc_core_destroy_vm(struct kvm *kvm) { kvm->arch.kvm_ops->destroy_vm(kvm); -#ifdef CONFIG_PPC64 kvmppc_rtas_tokens_free(kvm); WARN_ON(!list_empty(&kvm->arch.spapr_tce_tables)); -#endif #ifdef CONFIG_KVM_XICS /* @@ -1069,10 +1064,6 @@ static int kvmppc_book3s_init(void) r = kvm_init(sizeof(struct kvm_vcpu), 0, THIS_MODULE); if (r) return r; -#ifdef CONFIG_KVM_BOOK3S_32_HANDLER - r = kvmppc_book3s_init_pr(); -#endif - #ifdef CONFIG_KVM_XICS #ifdef CONFIG_KVM_XIVE if (xics_on_xive()) { @@ -1089,17 +1080,8 @@ static int kvmppc_book3s_init(void) static void kvmppc_book3s_exit(void) { -#ifdef CONFIG_KVM_BOOK3S_32_HANDLER - kvmppc_book3s_exit_pr(); -#endif kvm_exit(); } module_init(kvmppc_book3s_init); module_exit(kvmppc_book3s_exit); - -/* On 32bit this is our one and only kernel module */ -#ifdef CONFIG_KVM_BOOK3S_32_HANDLER -MODULE_ALIAS_MISCDEV(KVM_MINOR); -MODULE_ALIAS("devname:kvm"); -#endif diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c index de126d153328..30a117d6e70c 100644 --- a/arch/powerpc/kvm/book3s_emulate.c +++ b/arch/powerpc/kvm/book3s_emulate.c @@ -351,7 +351,6 @@ int kvmppc_core_emulate_op_pr(struct kvm_vcpu *vcpu, vcpu->arch.mmu.tlbie(vcpu, addr, large); break; } -#ifdef CONFIG_PPC_BOOK3S_64 case OP_31_XOP_FAKE_SC1: { /* SC 1 papr hypercalls */ @@ -378,7 +377,6 @@ int kvmppc_core_emulate_op_pr(struct kvm_vcpu *vcpu, emulated = EMULATE_EXIT_USER; break; } -#endif case OP_31_XOP_EIOIO: break; case OP_31_XOP_SLBMTE: @@ -762,7 +760,6 @@ int kvmppc_core_emulate_mtspr_pr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val) case SPRN_GQR7: to_book3s(vcpu)->gqr[sprn - SPRN_GQR0] = spr_val; break; -#ifdef CONFIG_PPC_BOOK3S_64 case SPRN_FSCR: kvmppc_set_fscr(vcpu, spr_val); break; @@ -810,7 +807,6 @@ int kvmppc_core_emulate_mtspr_pr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val) tm_disable(); break; -#endif #endif case SPRN_ICTC: case SPRN_THRM1: @@ -829,7 +825,6 @@ int kvmppc_core_emulate_mtspr_pr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val) case SPRN_WPAR_GEKKO: case SPRN_MSSSR0: case SPRN_DABR: -#ifdef CONFIG_PPC_BOOK3S_64 case SPRN_MMCRS: case SPRN_MMCRA: case SPRN_MMCR0: @@ -839,7 +834,6 @@ int kvmppc_core_emulate_mtspr_pr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val) case SPRN_UAMOR: case SPRN_IAMR: case SPRN_AMR: -#endif break; unprivileged: default: @@ -943,7 +937,6 @@ int kvmppc_core_emulate_mfspr_pr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val case SPRN_GQR7: *spr_val = to_book3s(vcpu)->gqr[sprn - SPRN_GQR0]; break; -#ifdef CONFIG_PPC_BOOK3S_64 case SPRN_FSCR: *spr_val = vcpu->arch.fscr; break; @@ -978,7 +971,6 @@ int kvmppc_core_emulate_mfspr_pr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val *spr_val = mfspr(SPRN_TFIAR); tm_disable(); break; -#endif #endif case SPRN_THRM1: case SPRN_THRM2: @@ -995,7 +987,6 @@ int kvmppc_core_emulate_mfspr_pr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val case SPRN_WPAR_GEKKO: case SPRN_MSSSR0: case SPRN_DABR: -#ifdef CONFIG_PPC_BOOK3S_64 case SPRN_MMCRS: case SPRN_MMCRA: case SPRN_MMCR0: @@ -1006,7 +997,6 @@ int kvmppc_core_emulate_mfspr_pr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val case SPRN_UAMOR: case SPRN_IAMR: case SPRN_AMR: -#endif *spr_val = 0; break; default: @@ -1038,35 +1028,8 @@ u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst) ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst) { -#ifdef CONFIG_PPC_BOOK3S_64 /* * Linux's fix_alignment() assumes that DAR is valid, so can we */ return vcpu->arch.fault_dar; -#else - ulong dar = 0; - ulong ra = get_ra(inst); - ulong rb = get_rb(inst); - - switch (get_op(inst)) { - case OP_LFS: - case OP_LFD: - case OP_STFD: - case OP_STFS: - if (ra) - dar = kvmppc_get_gpr(vcpu, ra); - dar += (s32)((s16)inst); - break; - case 31: - if (ra) - dar = kvmppc_get_gpr(vcpu, ra); - dar += kvmppc_get_gpr(vcpu, rb); - break; - default: - printk(KERN_INFO "KVM: Unaligned instruction 0x%x\n", inst); - break; - } - - return dar; -#endif } diff --git a/arch/powerpc/kvm/book3s_interrupts.S b/arch/powerpc/kvm/book3s_interrupts.S index f4bec2fc51aa..c5b88d5451b7 100644 --- a/arch/powerpc/kvm/book3s_interrupts.S +++ b/arch/powerpc/kvm/book3s_interrupts.S @@ -14,7 +14,6 @@ #include <asm/exception-64s.h> #include <asm/asm-compat.h> -#if defined(CONFIG_PPC_BOOK3S_64) #ifdef CONFIG_PPC64_ELF_ABI_V2 #define FUNC(name) name #else @@ -22,12 +21,6 @@ #endif #define GET_SHADOW_VCPU(reg) addi reg, r13, PACA_SVCPU -#elif defined(CONFIG_PPC_BOOK3S_32) -#define FUNC(name) name -#define GET_SHADOW_VCPU(reg) lwz reg, (THREAD + THREAD_KVM_SVCPU)(r2) - -#endif /* CONFIG_PPC_BOOK3S_64 */ - #define VCPU_LOAD_NVGPRS(vcpu) \ PPC_LL r14, VCPU_GPR(R14)(vcpu); \ PPC_LL r15, VCPU_GPR(R15)(vcpu); \ @@ -89,7 +82,6 @@ kvm_start_lightweight: nop REST_GPR(3, r1) -#ifdef CONFIG_PPC_BOOK3S_64 /* Get the dcbz32 flag */ PPC_LL r0, VCPU_HFLAGS(r3) rldicl r0, r0, 0, 63 /* r3 &= 1 */ @@ -118,7 +110,6 @@ sprg3_little_endian: after_sprg3_load: mtspr SPRN_SPRG3, r4 -#endif /* CONFIG_PPC_BOOK3S_64 */ PPC_LL r4, VCPU_SHADOW_MSR(r3) /* get shadow_msr */ @@ -157,14 +148,12 @@ after_sprg3_load: bl FUNC(kvmppc_copy_from_svcpu) nop -#ifdef CONFIG_PPC_BOOK3S_64 /* * Reload kernel SPRG3 value. * No need to save guest value as usermode can't modify SPRG3. */ ld r3, PACA_SPRG_VDSO(r13) mtspr SPRN_SPRG_VDSO_WRITE, r3 -#endif /* CONFIG_PPC_BOOK3S_64 */ /* R7 = vcpu */ PPC_LL r7, GPR3(r1) diff --git a/arch/powerpc/kvm/book3s_mmu_hpte.c b/arch/powerpc/kvm/book3s_mmu_hpte.c index d904e13e069b..91614ca9f969 100644 --- a/arch/powerpc/kvm/book3s_mmu_hpte.c +++ b/arch/powerpc/kvm/book3s_mmu_hpte.c @@ -45,13 +45,11 @@ static inline u64 kvmppc_mmu_hash_vpte_long(u64 vpage) HPTEG_HASH_BITS_VPTE_LONG); } -#ifdef CONFIG_PPC_BOOK3S_64 static inline u64 kvmppc_mmu_hash_vpte_64k(u64 vpage) { return hash_64((vpage & 0xffffffff0ULL) >> 4, HPTEG_HASH_BITS_VPTE_64K); } -#endif void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte) { @@ -80,12 +78,10 @@ void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte) hlist_add_head_rcu(&pte->list_vpte_long, &vcpu3s->hpte_hash_vpte_long[index]); -#ifdef CONFIG_PPC_BOOK3S_64 /* Add to vPTE_64k list */ index = kvmppc_mmu_hash_vpte_64k(pte->pte.vpage); hlist_add_head_rcu(&pte->list_vpte_64k, &vcpu3s->hpte_hash_vpte_64k[index]); -#endif vcpu3s->hpte_cache_count++; @@ -113,9 +109,7 @@ static void invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte) hlist_del_init_rcu(&pte->list_pte_long); hlist_del_init_rcu(&pte->list_vpte); hlist_del_init_rcu(&pte->list_vpte_long); -#ifdef CONFIG_PPC_BOOK3S_64 hlist_del_init_rcu(&pte->list_vpte_64k); -#endif vcpu3s->hpte_cache_count--; spin_unlock(&vcpu3s->mmu_lock); @@ -222,7 +216,6 @@ static void kvmppc_mmu_pte_vflush_short(struct kvm_vcpu *vcpu, u64 guest_vp) rcu_read_unlock(); } -#ifdef CONFIG_PPC_BOOK3S_64 /* Flush with mask 0xffffffff0 */ static void kvmppc_mmu_pte_vflush_64k(struct kvm_vcpu *vcpu, u64 guest_vp) { @@ -243,7 +236,6 @@ static void kvmppc_mmu_pte_vflush_64k(struct kvm_vcpu *vcpu, u64 guest_vp) rcu_read_unlock(); } -#endif /* Flush with mask 0xffffff000 */ static void kvmppc_mmu_pte_vflush_long(struct kvm_vcpu *vcpu, u64 guest_vp) @@ -275,11 +267,9 @@ void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 guest_vp, u64 vp_mask) case 0xfffffffffULL: kvmppc_mmu_pte_vflush_short(vcpu, guest_vp); break; -#ifdef CONFIG_PPC_BOOK3S_64 case 0xffffffff0ULL: kvmppc_mmu_pte_vflush_64k(vcpu, guest_vp); break; -#endif case 0xffffff000ULL: kvmppc_mmu_pte_vflush_long(vcpu, guest_vp); break; @@ -355,10 +345,8 @@ int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu) ARRAY_SIZE(vcpu3s->hpte_hash_vpte)); kvmppc_mmu_hpte_init_hash(vcpu3s->hpte_hash_vpte_long, ARRAY_SIZE(vcpu3s->hpte_hash_vpte_long)); -#ifdef CONFIG_PPC_BOOK3S_64 kvmppc_mmu_hpte_init_hash(vcpu3s->hpte_hash_vpte_64k, ARRAY_SIZE(vcpu3s->hpte_hash_vpte_64k)); -#endif spin_lock_init(&vcpu3s->mmu_lock); diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index 83bcdc80ce51..36785a02b9da 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -52,17 +52,7 @@ static int kvmppc_handle_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr, ulong msr); -#ifdef CONFIG_PPC_BOOK3S_64 static int kvmppc_handle_fac(struct kvm_vcpu *vcpu, ulong fac); -#endif - -/* Some compatibility defines */ -#ifdef CONFIG_PPC_BOOK3S_32 -#define MSR_USER32 MSR_USER -#define MSR_USER64 MSR_USER -#define HW_PAGE_SIZE PAGE_SIZE -#define HPTE_R_M _PAGE_COHERENT -#endif static bool kvmppc_is_split_real(struct kvm_vcpu *vcpu) { @@ -115,13 +105,11 @@ static void kvmppc_inject_interrupt_pr(struct kvm_vcpu *vcpu, int vec, u64 srr1_ new_msr = vcpu->arch.intr_msr; new_pc = to_book3s(vcpu)->hior + vec; -#ifdef CONFIG_PPC_BOOK3S_64 /* If transactional, change to suspend mode on IRQ delivery */ if (MSR_TM_TRANSACTIONAL(msr)) new_msr |= MSR_TS_S; else new_msr |= msr & MSR_TS_MASK; -#endif kvmppc_set_srr0(vcpu, pc); kvmppc_set_srr1(vcpu, (msr & SRR1_MSR_BITS) | srr1_flags); @@ -131,7 +119,6 @@ static void kvmppc_inject_interrupt_pr(struct kvm_vcpu *vcpu, int vec, u64 srr1_ static void kvmppc_core_vcpu_load_pr(struct kvm_vcpu *vcpu, int cpu) { -#ifdef CONFIG_PPC_BOOK3S_64 struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu); memcpy(svcpu->slb, to_book3s(vcpu)->slb_shadow, sizeof(svcpu->slb)); svcpu->slb_max = to_book3s(vcpu)->slb_shadow_max; @@ -145,12 +132,8 @@ static void kvmppc_core_vcpu_load_pr(struct kvm_vcpu *vcpu, int cpu) if (cpu_has_feature(CPU_FTR_ARCH_300) && (current->thread.fscr & FSCR_SCV)) mtspr(SPRN_FSCR, mfspr(SPRN_FSCR) & ~FSCR_SCV); } -#endif vcpu->cpu = smp_processor_id(); -#ifdef CONFIG_PPC_BOOK3S_32 - current->thread.kvm_shadow_vcpu = vcpu->arch.shadow_vcpu; -#endif if (kvmppc_is_split_real(vcpu)) kvmppc_fixup_split_real(vcpu); @@ -160,7 +143,6 @@ static void kvmppc_core_vcpu_load_pr(struct kvm_vcpu *vcpu, int cpu) static void kvmppc_core_vcpu_put_pr(struct kvm_vcpu *vcpu) { -#ifdef CONFIG_PPC_BOOK3S_64 struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu); if (svcpu->in_use) { kvmppc_copy_from_svcpu(vcpu); @@ -176,7 +158,6 @@ static void kvmppc_core_vcpu_put_pr(struct kvm_vcpu *vcpu) if (cpu_has_feature(CPU_FTR_ARCH_300) && (current->thread.fscr & FSCR_SCV)) mtspr(SPRN_FSCR, mfspr(SPRN_FSCR) | FSCR_SCV); } -#endif if (kvmppc_is_split_real(vcpu)) kvmppc_unfixup_split_real(vcpu); @@ -212,9 +193,7 @@ void kvmppc_copy_to_svcpu(struct kvm_vcpu *vcpu) svcpu->ctr = vcpu->arch.regs.ctr; svcpu->lr = vcpu->arch.regs.link; svcpu->pc = vcpu->arch.regs.nip; -#ifdef CONFIG_PPC_BOOK3S_64 svcpu->shadow_fscr = vcpu->arch.shadow_fscr; -#endif /* * Now also save the current time base value. We use this * to find the guest purr and spurr value. @@ -245,9 +224,7 @@ static void kvmppc_recalc_shadow_msr(struct kvm_vcpu *vcpu) /* External providers the guest reserved */ smsr |= (guest_msr & vcpu->arch.guest_owned_ext); /* 64-bit Process MSR values */ -#ifdef CONFIG_PPC_BOOK3S_64 smsr |= MSR_HV; -#endif #ifdef CONFIG_PPC_TRANSACTIONAL_MEM /* * in guest privileged state, we want to fail all TM transactions. @@ -298,9 +275,7 @@ void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu) vcpu->arch.fault_dar = svcpu->fault_dar; vcpu->arch.fault_dsisr = svcpu->fault_dsisr; vcpu->arch.last_inst = svcpu->last_inst; -#ifdef CONFIG_PPC_BOOK3S_64 vcpu->arch.shadow_fscr = svcpu->shadow_fscr; -#endif /* * Update purr and spurr using time base on exit. */ @@ -553,7 +528,6 @@ static void kvmppc_set_pvr_pr(struct kvm_vcpu *vcpu, u32 pvr) vcpu->arch.hflags &= ~BOOK3S_HFLAG_SLB; vcpu->arch.pvr = pvr; -#ifdef CONFIG_PPC_BOOK3S_64 if ((pvr >= 0x330000) && (pvr < 0x70330000)) { kvmppc_mmu_book3s_64_init(vcpu); if (!to_book3s(vcpu)->hior_explicit) @@ -561,7 +535,6 @@ static void kvmppc_set_pvr_pr(struct kvm_vcpu *vcpu, u32 pvr) to_book3s(vcpu)->msr_mask = 0xffffffffffffffffULL; vcpu->arch.cpu_type = KVM_CPU_3S_64; } else -#endif { kvmppc_mmu_book3s_32_init(vcpu); if (!to_book3s(vcpu)->hior_explicit) @@ -605,11 +578,6 @@ static void kvmppc_set_pvr_pr(struct kvm_vcpu *vcpu, u32 pvr) break; } -#ifdef CONFIG_PPC_BOOK3S_32 - /* 32 bit Book3S always has 32 byte dcbz */ - vcpu->arch.hflags |= BOOK3S_HFLAG_DCBZ32; -#endif - /* On some CPUs we can execute paired single operations natively */ asm ( "mfpvr %0" : "=r"(host_pvr)); switch (host_pvr) { @@ -839,7 +807,6 @@ void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr) /* Give up facility (TAR / EBB / DSCR) */ void kvmppc_giveup_fac(struct kvm_vcpu *vcpu, ulong fac) { -#ifdef CONFIG_PPC_BOOK3S_64 if (!(vcpu->arch.shadow_fscr & (1ULL << fac))) { /* Facility not available to the guest, ignore giveup request*/ return; @@ -852,7 +819,6 @@ void kvmppc_giveup_fac(struct kvm_vcpu *vcpu, ulong fac) vcpu->arch.shadow_fscr &= ~FSCR_TAR; break; } -#endif } /* Handle external providers (FPU, Altivec, VSX) */ @@ -954,8 +920,6 @@ static void kvmppc_handle_lost_ext(struct kvm_vcpu *vcpu) current->thread.regs->msr |= lost_ext; } -#ifdef CONFIG_PPC_BOOK3S_64 - void kvmppc_trigger_fac_interrupt(struct kvm_vcpu *vcpu, ulong fac) { /* Inject the Interrupt Cause field and trigger a guest interrupt */ @@ -1050,7 +1014,6 @@ void kvmppc_set_fscr(struct kvm_vcpu *vcpu, u64 fscr) vcpu->arch.fscr = fscr; } -#endif static void kvmppc_setup_debug(struct kvm_vcpu *vcpu) { @@ -1157,24 +1120,6 @@ int kvmppc_handle_exit_pr(struct kvm_vcpu *vcpu, unsigned int exit_nr) if (kvmppc_is_split_real(vcpu)) kvmppc_fixup_split_real(vcpu); -#ifdef CONFIG_PPC_BOOK3S_32 - /* We set segments as unused segments when invalidating them. So - * treat the respective fault as segment fault. */ - { - struct kvmppc_book3s_shadow_vcpu *svcpu; - u32 sr; - - svcpu = svcpu_get(vcpu); - sr = svcpu->sr[kvmppc_get_pc(vcpu) >> SID_SHIFT]; - svcpu_put(svcpu); - if (sr == SR_INVALID) { - kvmppc_mmu_map_segment(vcpu, kvmppc_get_pc(vcpu)); - r = RESUME_GUEST; - break; - } - } -#endif - /* only care about PTEG not found errors, but leave NX alone */ if (shadow_srr1 & 0x40000000) { int idx = srcu_read_lock(&vcpu->kvm->srcu); @@ -1203,24 +1148,6 @@ int kvmppc_handle_exit_pr(struct kvm_vcpu *vcpu, unsigned int exit_nr) u32 fault_dsisr = vcpu->arch.fault_dsisr; vcpu->stat.pf_storage++; -#ifdef CONFIG_PPC_BOOK3S_32 - /* We set segments as unused segments when invalidating them. So - * treat the respective fault as segment fault. */ - { - struct kvmppc_book3s_shadow_vcpu *svcpu; - u32 sr; - - svcpu = svcpu_get(vcpu); - sr = svcpu->sr[dar >> SID_SHIFT]; - svcpu_put(svcpu); - if (sr == SR_INVALID) { - kvmppc_mmu_map_segment(vcpu, dar); - r = RESUME_GUEST; - break; - } - } -#endif - /* * We need to handle missing shadow PTEs, and * protection faults due to us mapping a page read-only @@ -1297,12 +1224,10 @@ int kvmppc_handle_exit_pr(struct kvm_vcpu *vcpu, unsigned int exit_nr) ulong cmd = kvmppc_get_gpr(vcpu, 3); int i; -#ifdef CONFIG_PPC_BOOK3S_64 if (kvmppc_h_pr(vcpu, cmd) == EMULATE_DONE) { r = RESUME_GUEST; break; } -#endif run->papr_hcall.nr = cmd; for (i = 0; i < 9; ++i) { @@ -1395,11 +1320,9 @@ int kvmppc_handle_exit_pr(struct kvm_vcpu *vcpu, unsigned int exit_nr) r = RESUME_GUEST; break; } -#ifdef CONFIG_PPC_BOOK3S_64 case BOOK3S_INTERRUPT_FAC_UNAVAIL: r = kvmppc_handle_fac(vcpu, vcpu->arch.shadow_fscr >> 56); break; -#endif case BOOK3S_INTERRUPT_MACHINE_CHECK: kvmppc_book3s_queue_irqprio(vcpu, exit_nr); r = RESUME_GUEST; @@ -1488,7 +1411,6 @@ static int kvm_arch_vcpu_ioctl_set_sregs_pr(struct kvm_vcpu *vcpu, kvmppc_set_pvr_pr(vcpu, sregs->pvr); vcpu3s->sdr1 = sregs->u.s.sdr1; -#ifdef CONFIG_PPC_BOOK3S_64 if (vcpu->arch.hflags & BOOK3S_HFLAG_SLB) { /* Flush all SLB entries */ vcpu->arch.mmu.slbmte(vcpu, 0, 0); @@ -1501,9 +1423,7 @@ static int kvm_arch_vcpu_ioctl_set_sregs_pr(struct kvm_vcpu *vcpu, if (rb & SLB_ESID_V) vcpu->arch.mmu.slbmte(vcpu, rs, rb); } - } else -#endif - { + } else { for (i = 0; i < 16; i++) { vcpu->arch.mmu.mtsrin(vcpu, i, sregs->u.s.ppc32.sr[i]); } @@ -1737,18 +1657,10 @@ static int kvmppc_core_vcpu_create_pr(struct kvm_vcpu *vcpu) goto out; vcpu->arch.book3s = vcpu_book3s; -#ifdef CONFIG_KVM_BOOK3S_32_HANDLER - vcpu->arch.shadow_vcpu = - kzalloc(sizeof(*vcpu->arch.shadow_vcpu), GFP_KERNEL); - if (!vcpu->arch.shadow_vcpu) - goto free_vcpu3s; -#endif - p = __get_free_page(GFP_KERNEL|__GFP_ZERO); if (!p) goto free_shadow_vcpu; vcpu->arch.shared = (void *)p; -#ifdef CONFIG_PPC_BOOK3S_64 /* Always start the shared struct in native endian mode */ #ifdef __BIG_ENDIAN__ vcpu->arch.shared_big_endian = true; @@ -1765,11 +1677,6 @@ static int kvmppc_core_vcpu_create_pr(struct kvm_vcpu *vcpu) if (mmu_has_feature(MMU_FTR_1T_SEGMENT)) vcpu->arch.pvr = mfspr(SPRN_PVR); vcpu->arch.intr_msr = MSR_SF; -#else - /* default to book3s_32 (750) */ - vcpu->arch.pvr = 0x84202; - vcpu->arch.intr_msr = 0; -#endif kvmppc_set_pvr_pr(vcpu, vcpu->arch.pvr); vcpu->arch.slb_nr = 64; @@ -1784,10 +1691,6 @@ static int kvmppc_core_vcpu_create_pr(struct kvm_vcpu *vcpu) free_shared_page: free_page((unsigned long)vcpu->arch.shared); free_shadow_vcpu: -#ifdef CONFIG_KVM_BOOK3S_32_HANDLER - kfree(vcpu->arch.shadow_vcpu); -free_vcpu3s: -#endif vfree(vcpu_book3s); out: return err; @@ -1799,9 +1702,6 @@ static void kvmppc_core_vcpu_free_pr(struct kvm_vcpu *vcpu) kvmppc_mmu_destroy_pr(vcpu); free_page((unsigned long)vcpu->arch.shared & PAGE_MASK); -#ifdef CONFIG_KVM_BOOK3S_32_HANDLER - kfree(vcpu->arch.shadow_vcpu); -#endif vfree(vcpu_book3s); } @@ -1921,7 +1821,6 @@ static void kvmppc_core_free_memslot_pr(struct kvm_memory_slot *slot) return; } -#ifdef CONFIG_PPC64 static int kvm_vm_ioctl_get_smmu_info_pr(struct kvm *kvm, struct kvm_ppc_smmu_info *info) { @@ -1978,16 +1877,6 @@ static int kvm_configure_mmu_pr(struct kvm *kvm, struct kvm_ppc_mmuv3_cfg *cfg) return 0; } -#else -static int kvm_vm_ioctl_get_smmu_info_pr(struct kvm *kvm, - struct kvm_ppc_smmu_info *info) -{ - /* We should not get called */ - BUG(); - return 0; -} -#endif /* CONFIG_PPC64 */ - static unsigned int kvm_global_user_count = 0; static DEFINE_SPINLOCK(kvm_global_user_count_lock); @@ -1995,10 +1884,8 @@ static int kvmppc_core_init_vm_pr(struct kvm *kvm) { mutex_init(&kvm->arch.hpt_mutex); -#ifdef CONFIG_PPC_BOOK3S_64 /* Start out with the default set of hcalls enabled */ kvmppc_pr_init_default_hcalls(kvm); -#endif if (firmware_has_feature(FW_FEATURE_SET_MODE)) { spin_lock(&kvm_global_user_count_lock); @@ -2011,9 +1898,7 @@ static int kvmppc_core_init_vm_pr(struct kvm *kvm) static void kvmppc_core_destroy_vm_pr(struct kvm *kvm) { -#ifdef CONFIG_PPC64 WARN_ON(!list_empty(&kvm->arch.spapr_tce_tables)); -#endif if (firmware_has_feature(FW_FEATURE_SET_MODE)) { spin_lock(&kvm_global_user_count_lock); @@ -2072,10 +1957,8 @@ static struct kvmppc_ops kvm_ops_pr = { .emulate_mfspr = kvmppc_core_emulate_mfspr_pr, .fast_vcpu_kick = kvm_vcpu_kick, .arch_vm_ioctl = kvm_arch_vm_ioctl_pr, -#ifdef CONFIG_PPC_BOOK3S_64 .hcall_implemented = kvmppc_hcall_impl_pr, .configure_mmu = kvm_configure_mmu_pr, -#endif .giveup_ext = kvmppc_giveup_ext, }; @@ -2104,8 +1987,6 @@ void kvmppc_book3s_exit_pr(void) /* * We only support separate modules for book3s 64 */ -#ifdef CONFIG_PPC_BOOK3S_64 - module_init(kvmppc_book3s_init_pr); module_exit(kvmppc_book3s_exit_pr); @@ -2113,4 +1994,3 @@ MODULE_DESCRIPTION("KVM on Book3S without using hypervisor mode"); MODULE_LICENSE("GPL"); MODULE_ALIAS_MISCDEV(KVM_MINOR); MODULE_ALIAS("devname:kvm"); -#endif diff --git a/arch/powerpc/kvm/book3s_rmhandlers.S b/arch/powerpc/kvm/book3s_rmhandlers.S index 0a557ffca9fe..ef01e8ed2a97 100644 --- a/arch/powerpc/kvm/book3s_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_rmhandlers.S @@ -14,9 +14,7 @@ #include <asm/asm-offsets.h> #include <asm/asm-compat.h> -#ifdef CONFIG_PPC_BOOK3S_64 #include <asm/exception-64s.h> -#endif /***************************************************************************** * * @@ -24,120 +22,12 @@ * * ****************************************************************************/ -#if defined(CONFIG_PPC_BOOK3S_64) - #ifdef CONFIG_PPC64_ELF_ABI_V2 #define FUNC(name) name #else #define FUNC(name) GLUE(.,name) #endif -#elif defined(CONFIG_PPC_BOOK3S_32) - -#define FUNC(name) name - -#define RFI_TO_KERNEL rfi -#define RFI_TO_GUEST rfi - -.macro INTERRUPT_TRAMPOLINE intno - -.global kvmppc_trampoline_\intno -kvmppc_trampoline_\intno: - - mtspr SPRN_SPRG_SCRATCH0, r13 /* Save r13 */ - - /* - * First thing to do is to find out if we're coming - * from a KVM guest or a Linux process. - * - * To distinguish, we check a magic byte in the PACA/current - */ - mfspr r13, SPRN_SPRG_THREAD - lwz r13, THREAD_KVM_SVCPU(r13) - /* PPC32 can have a NULL pointer - let's check for that */ - mtspr SPRN_SPRG_SCRATCH1, r12 /* Save r12 */ - mfcr r12 - cmpwi r13, 0 - bne 1f -2: mtcr r12 - mfspr r12, SPRN_SPRG_SCRATCH1 - mfspr r13, SPRN_SPRG_SCRATCH0 /* r13 = original r13 */ - b kvmppc_resume_\intno /* Get back original handler */ - -1: tophys(r13, r13) - stw r12, HSTATE_SCRATCH1(r13) - mfspr r12, SPRN_SPRG_SCRATCH1 - stw r12, HSTATE_SCRATCH0(r13) - lbz r12, HSTATE_IN_GUEST(r13) - cmpwi r12, KVM_GUEST_MODE_NONE - bne ..kvmppc_handler_hasmagic_\intno - /* No KVM guest? Then jump back to the Linux handler! */ - lwz r12, HSTATE_SCRATCH1(r13) - b 2b - - /* Now we know we're handling a KVM guest */ -..kvmppc_handler_hasmagic_\intno: - - /* Should we just skip the faulting instruction? */ - cmpwi r12, KVM_GUEST_MODE_SKIP - beq kvmppc_handler_skip_ins - - /* Let's store which interrupt we're handling */ - li r12, \intno - - /* Jump into the SLB exit code that goes to the highmem handler */ - b kvmppc_handler_trampoline_exit - -.endm - -INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_SYSTEM_RESET -INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_MACHINE_CHECK -INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_DATA_STORAGE -INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_INST_STORAGE -INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_EXTERNAL -INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_ALIGNMENT -INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_PROGRAM -INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_FP_UNAVAIL -INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_DECREMENTER -INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_SYSCALL -INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_TRACE -INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_PERFMON -INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_ALTIVEC - -/* - * Bring us back to the faulting code, but skip the - * faulting instruction. - * - * This is a generic exit path from the interrupt - * trampolines above. - * - * Input Registers: - * - * R12 = free - * R13 = Shadow VCPU (PACA) - * HSTATE.SCRATCH0 = guest R12 - * HSTATE.SCRATCH1 = guest CR - * SPRG_SCRATCH0 = guest R13 - * - */ -kvmppc_handler_skip_ins: - - /* Patch the IP to the next instruction */ - /* Note that prefixed instructions are disabled in PR KVM for now */ - mfsrr0 r12 - addi r12, r12, 4 - mtsrr0 r12 - - /* Clean up all state */ - lwz r12, HSTATE_SCRATCH1(r13) - mtcr r12 - PPC_LL r12, HSTATE_SCRATCH0(r13) - GET_SCRATCH0(r13) - - /* And get back into the code */ - RFI_TO_KERNEL -#endif - /* * Call kvmppc_handler_trampoline_enter in real mode * diff --git a/arch/powerpc/kvm/book3s_segment.S b/arch/powerpc/kvm/book3s_segment.S index 202046a83fc1..eec41008d815 100644 --- a/arch/powerpc/kvm/book3s_segment.S +++ b/arch/powerpc/kvm/book3s_segment.S @@ -11,31 +11,16 @@ #include <asm/asm-compat.h> #include <asm/feature-fixups.h> -#if defined(CONFIG_PPC_BOOK3S_64) - #define GET_SHADOW_VCPU(reg) \ mr reg, r13 -#elif defined(CONFIG_PPC_BOOK3S_32) - -#define GET_SHADOW_VCPU(reg) \ - tophys(reg, r2); \ - lwz reg, (THREAD + THREAD_KVM_SVCPU)(reg); \ - tophys(reg, reg) - -#endif - /* Disable for nested KVM */ #define USE_QUICK_LAST_INST /* Get helper functions for subarch specific functionality */ -#if defined(CONFIG_PPC_BOOK3S_64) #include "book3s_64_slb.S" -#elif defined(CONFIG_PPC_BOOK3S_32) -#include "book3s_32_sr.S" -#endif /****************************************************************************** * * @@ -81,7 +66,6 @@ kvmppc_handler_trampoline_enter: /* Switch to guest segment. This is subarch specific. */ LOAD_GUEST_SEGMENTS -#ifdef CONFIG_PPC_BOOK3S_64 BEGIN_FTR_SECTION /* Save host FSCR */ mfspr r8, SPRN_FSCR @@ -108,8 +92,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S) mtspr SPRN_HID5,r0 no_dcbz32_on: -#endif /* CONFIG_PPC_BOOK3S_64 */ - /* Enter guest */ PPC_LL r8, SVCPU_CTR(r3) @@ -170,13 +152,11 @@ kvmppc_interrupt_pr: * HSTATE.SCRATCH0 = guest R12 * HSTATE.SCRATCH2 = guest R9 */ -#ifdef CONFIG_PPC64 /* Match 32-bit entry */ ld r9,HSTATE_SCRATCH2(r13) rotldi r12, r12, 32 /* Flip R12 halves for stw */ stw r12, HSTATE_SCRATCH1(r13) /* CR is now in the low half */ srdi r12, r12, 32 /* shift trap into low half */ -#endif .global kvmppc_handler_trampoline_exit kvmppc_handler_trampoline_exit: @@ -209,7 +189,6 @@ kvmppc_handler_trampoline_exit: PPC_LL r2, HSTATE_HOST_R2(r13) /* Save guest PC and MSR */ -#ifdef CONFIG_PPC64 BEGIN_FTR_SECTION andi. r0, r12, 0x2 cmpwi cr1, r0, 0 @@ -219,7 +198,7 @@ BEGIN_FTR_SECTION andi. r12,r12,0x3ffd b 2f END_FTR_SECTION_IFSET(CPU_FTR_HVMODE) -#endif + 1: mfsrr0 r3 mfsrr1 r4 2: @@ -265,7 +244,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_HVMODE) beq ld_last_prev_inst cmpwi r12, BOOK3S_INTERRUPT_ALIGNMENT beq- ld_last_inst -#ifdef CONFIG_PPC64 BEGIN_FTR_SECTION cmpwi r12, BOOK3S_INTERRUPT_H_EMUL_ASSIST beq- ld_last_inst @@ -274,7 +252,6 @@ BEGIN_FTR_SECTION cmpwi r12, BOOK3S_INTERRUPT_FAC_UNAVAIL beq- ld_last_inst END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S) -#endif b no_ld_last_inst @@ -317,7 +294,6 @@ no_ld_last_inst: /* Switch back to host MMU */ LOAD_HOST_SEGMENTS -#ifdef CONFIG_PPC_BOOK3S_64 lbz r5, HSTATE_RESTORE_HID5(r13) cmpwi r5, 0 @@ -342,8 +318,6 @@ no_fscr_save: mtspr SPRN_FSCR, r8 END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S) -#endif /* CONFIG_PPC_BOOK3S_64 */ - /* * For some interrupts, we need to call the real Linux * handler, so it can do work for us. This has to happen @@ -386,13 +360,11 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S) #endif PPC_LL r8, HSTATE_VMHANDLER(r13) -#ifdef CONFIG_PPC64 BEGIN_FTR_SECTION beq cr1, 1f mtspr SPRN_HSRR1, r6 mtspr SPRN_HSRR0, r8 END_FTR_SECTION_IFSET(CPU_FTR_HVMODE) -#endif 1: /* Restore host msr -> SRR1 */ mtsrr1 r6 /* Load highmem handler address */ diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c index 355d5206e8aa..74508516df51 100644 --- a/arch/powerpc/kvm/emulate.c +++ b/arch/powerpc/kvm/emulate.c @@ -229,9 +229,7 @@ int kvmppc_emulate_instruction(struct kvm_vcpu *vcpu) switch (get_xop(inst)) { case OP_31_XOP_TRAP: -#ifdef CONFIG_64BIT case OP_31_XOP_TRAP_64: -#endif #ifdef CONFIG_PPC_BOOK3S kvmppc_core_queue_program(vcpu, SRR1_PROGTRAP); #else diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index ce1d91eed231..8059876abf23 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -1163,11 +1163,9 @@ static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu) if (vcpu->arch.mmio_sign_extend) { switch (run->mmio.len) { -#ifdef CONFIG_PPC64 case 4: gpr = (s64)(s32)gpr; break; -#endif case 2: gpr = (s64)(s16)gpr; break; -- 2.39.5
