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charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org, =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Nicholas Piggin Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Now that the P7/8 path no longer supports radix, real-mode handlers do not need to deal with being called in virt mode. This change effectively reverts commit acde25726bc6 ("KVM: PPC: Book3S HV: Add radix checks in real-mode hypercall handlers"). It removes a few more real-mode tests in rm hcall handlers, which allows the indirect ops for the xive module to be removed from the built-in xics rm handlers. kvmppc_h_random is renamed to kvmppc_rm_h_random to be a bit more descriptive and consistent with other rm handlers. Reviewed-by: Cédric Le Goater Signed-off-by: Nicholas Piggin --- arch/powerpc/include/asm/kvm_ppc.h | 10 +-- arch/powerpc/kvm/book3s.c | 11 +-- arch/powerpc/kvm/book3s_64_vio_hv.c | 12 ---- arch/powerpc/kvm/book3s_hv_builtin.c | 91 ++++++------------------- arch/powerpc/kvm/book3s_hv_rmhandlers.S | 2 +- arch/powerpc/kvm/book3s_xive.c | 18 ----- arch/powerpc/kvm/book3s_xive.h | 7 -- arch/powerpc/kvm/book3s_xive_native.c | 10 --- 8 files changed, 23 insertions(+), 138 deletions(-) diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h index cbd8deba2e8a..896e309431fb 100644 --- a/arch/powerpc/include/asm/kvm_ppc.h +++ b/arch/powerpc/include/asm/kvm_ppc.h @@ -660,8 +660,6 @@ extern int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server, u32 *priority); extern int kvmppc_xive_int_on(struct kvm *kvm, u32 irq); extern int kvmppc_xive_int_off(struct kvm *kvm, u32 irq); -extern void kvmppc_xive_init_module(void); -extern void kvmppc_xive_exit_module(void); extern int kvmppc_xive_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu, u32 cpu); @@ -687,8 +685,6 @@ static inline int kvmppc_xive_enabled(struct kvm_vcpu *vcpu) extern int kvmppc_xive_native_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu, u32 cpu); extern void kvmppc_xive_native_cleanup_vcpu(struct kvm_vcpu *vcpu); -extern void kvmppc_xive_native_init_module(void); -extern void kvmppc_xive_native_exit_module(void); extern int kvmppc_xive_native_get_vp(struct kvm_vcpu *vcpu, union kvmppc_one_reg *val); extern int kvmppc_xive_native_set_vp(struct kvm_vcpu *vcpu, @@ -702,8 +698,6 @@ static inline int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server, u32 *priority) { return -1; } static inline int kvmppc_xive_int_on(struct kvm *kvm, u32 irq) { return -1; } static inline int kvmppc_xive_int_off(struct kvm *kvm, u32 irq) { return -1; } -static inline void kvmppc_xive_init_module(void) { } -static inline void kvmppc_xive_exit_module(void) { } static inline int kvmppc_xive_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu, u32 cpu) { return -EBUSY; } @@ -726,8 +720,6 @@ static inline int kvmppc_xive_enabled(struct kvm_vcpu *vcpu) static inline int kvmppc_xive_native_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu, u32 cpu) { return -EBUSY; } static inline void kvmppc_xive_native_cleanup_vcpu(struct kvm_vcpu *vcpu) { } -static inline void kvmppc_xive_native_init_module(void) { } -static inline void kvmppc_xive_native_exit_module(void) { } static inline int kvmppc_xive_native_get_vp(struct kvm_vcpu *vcpu, union kvmppc_one_reg *val) { return 0; } @@ -763,7 +755,7 @@ long kvmppc_rm_h_stuff_tce(struct kvm_vcpu *vcpu, unsigned long tce_value, unsigned long npages); long int kvmppc_rm_h_confer(struct kvm_vcpu *vcpu, int target, unsigned int yield_count); -long kvmppc_h_random(struct kvm_vcpu *vcpu); +long kvmppc_rm_h_random(struct kvm_vcpu *vcpu); void kvmhv_commence_exit(int trap); void kvmppc_realmode_machine_check(struct kvm_vcpu *vcpu); void kvmppc_subcore_enter_guest(void); diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index 1658f899e289..d3bd509b4093 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -1052,13 +1052,10 @@ static int kvmppc_book3s_init(void) #ifdef CONFIG_KVM_XICS #ifdef CONFIG_KVM_XIVE if (xics_on_xive()) { - kvmppc_xive_init_module(); kvm_register_device_ops(&kvm_xive_ops, KVM_DEV_TYPE_XICS); - if (kvmppc_xive_native_supported()) { - kvmppc_xive_native_init_module(); + if (kvmppc_xive_native_supported()) kvm_register_device_ops(&kvm_xive_native_ops, KVM_DEV_TYPE_XIVE); - } } else #endif kvm_register_device_ops(&kvm_xics_ops, KVM_DEV_TYPE_XICS); @@ -1068,12 +1065,6 @@ static int kvmppc_book3s_init(void) static void kvmppc_book3s_exit(void) { -#ifdef CONFIG_KVM_XICS - if (xics_on_xive()) { - kvmppc_xive_exit_module(); - kvmppc_xive_native_exit_module(); - } -#endif #ifdef CONFIG_KVM_BOOK3S_32_HANDLER kvmppc_book3s_exit_pr(); #endif diff --git a/arch/powerpc/kvm/book3s_64_vio_hv.c b/arch/powerpc/kvm/book3s_64_vio_hv.c index 083a4e037718..dc6591548f0c 100644 --- a/arch/powerpc/kvm/book3s_64_vio_hv.c +++ b/arch/powerpc/kvm/book3s_64_vio_hv.c @@ -391,10 +391,6 @@ long kvmppc_rm_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn, /* udbg_printf("H_PUT_TCE(): liobn=0x%lx ioba=0x%lx, tce=0x%lx\n", */ /* liobn, ioba, tce); */ - /* For radix, we might be in virtual mode, so punt */ - if (kvm_is_radix(vcpu->kvm)) - return H_TOO_HARD; - stt = kvmppc_find_table(vcpu->kvm, liobn); if (!stt) return H_TOO_HARD; @@ -489,10 +485,6 @@ long kvmppc_rm_h_put_tce_indirect(struct kvm_vcpu *vcpu, bool prereg = false; struct kvmppc_spapr_tce_iommu_table *stit; - /* For radix, we might be in virtual mode, so punt */ - if (kvm_is_radix(vcpu->kvm)) - return H_TOO_HARD; - /* * used to check for invalidations in progress */ @@ -602,10 +594,6 @@ long kvmppc_rm_h_stuff_tce(struct kvm_vcpu *vcpu, long i, ret; struct kvmppc_spapr_tce_iommu_table *stit; - /* For radix, we might be in virtual mode, so punt */ - if (kvm_is_radix(vcpu->kvm)) - return H_TOO_HARD; - stt = kvmppc_find_table(vcpu->kvm, liobn); if (!stt) return H_TOO_HARD; diff --git a/arch/powerpc/kvm/book3s_hv_builtin.c b/arch/powerpc/kvm/book3s_hv_builtin.c index 7a0e33a9c980..8d669a0e15f8 100644 --- a/arch/powerpc/kvm/book3s_hv_builtin.c +++ b/arch/powerpc/kvm/book3s_hv_builtin.c @@ -34,21 +34,6 @@ #include "book3s_xics.h" #include "book3s_xive.h" -/* - * The XIVE module will populate these when it loads - */ -unsigned long (*__xive_vm_h_xirr)(struct kvm_vcpu *vcpu); -unsigned long (*__xive_vm_h_ipoll)(struct kvm_vcpu *vcpu, unsigned long server); -int (*__xive_vm_h_ipi)(struct kvm_vcpu *vcpu, unsigned long server, - unsigned long mfrr); -int (*__xive_vm_h_cppr)(struct kvm_vcpu *vcpu, unsigned long cppr); -int (*__xive_vm_h_eoi)(struct kvm_vcpu *vcpu, unsigned long xirr); -EXPORT_SYMBOL_GPL(__xive_vm_h_xirr); -EXPORT_SYMBOL_GPL(__xive_vm_h_ipoll); -EXPORT_SYMBOL_GPL(__xive_vm_h_ipi); -EXPORT_SYMBOL_GPL(__xive_vm_h_cppr); -EXPORT_SYMBOL_GPL(__xive_vm_h_eoi); - /* * Hash page table alignment on newer cpus(CPU_FTR_ARCH_206) * should be power of 2. @@ -196,16 +181,9 @@ int kvmppc_hwrng_present(void) } EXPORT_SYMBOL_GPL(kvmppc_hwrng_present); -long kvmppc_h_random(struct kvm_vcpu *vcpu) +long kvmppc_rm_h_random(struct kvm_vcpu *vcpu) { - int r; - - /* Only need to do the expensive mfmsr() on radix */ - if (kvm_is_radix(vcpu->kvm) && (mfmsr() & MSR_IR)) - r = powernv_get_random_long(&vcpu->arch.regs.gpr[4]); - else - r = powernv_get_random_real_mode(&vcpu->arch.regs.gpr[4]); - if (r) + if (powernv_get_random_real_mode(&vcpu->arch.regs.gpr[4])) return H_SUCCESS; return H_HARDWARE; @@ -541,22 +519,13 @@ static long kvmppc_read_one_intr(bool *again) } #ifdef CONFIG_KVM_XICS -static inline bool is_rm(void) -{ - return !(mfmsr() & MSR_DR); -} - unsigned long kvmppc_rm_h_xirr(struct kvm_vcpu *vcpu) { if (!kvmppc_xics_enabled(vcpu)) return H_TOO_HARD; - if (xics_on_xive()) { - if (is_rm()) - return xive_rm_h_xirr(vcpu); - if (unlikely(!__xive_vm_h_xirr)) - return H_NOT_AVAILABLE; - return __xive_vm_h_xirr(vcpu); - } else + if (xics_on_xive()) + return xive_rm_h_xirr(vcpu); + else return xics_rm_h_xirr(vcpu); } @@ -565,13 +534,9 @@ unsigned long kvmppc_rm_h_xirr_x(struct kvm_vcpu *vcpu) if (!kvmppc_xics_enabled(vcpu)) return H_TOO_HARD; vcpu->arch.regs.gpr[5] = get_tb(); - if (xics_on_xive()) { - if (is_rm()) - return xive_rm_h_xirr(vcpu); - if (unlikely(!__xive_vm_h_xirr)) - return H_NOT_AVAILABLE; - return __xive_vm_h_xirr(vcpu); - } else + if (xics_on_xive()) + return xive_rm_h_xirr(vcpu); + else return xics_rm_h_xirr(vcpu); } @@ -579,13 +544,9 @@ unsigned long kvmppc_rm_h_ipoll(struct kvm_vcpu *vcpu, unsigned long server) { if (!kvmppc_xics_enabled(vcpu)) return H_TOO_HARD; - if (xics_on_xive()) { - if (is_rm()) - return xive_rm_h_ipoll(vcpu, server); - if (unlikely(!__xive_vm_h_ipoll)) - return H_NOT_AVAILABLE; - return __xive_vm_h_ipoll(vcpu, server); - } else + if (xics_on_xive()) + return xive_rm_h_ipoll(vcpu, server); + else return H_TOO_HARD; } @@ -594,13 +555,9 @@ int kvmppc_rm_h_ipi(struct kvm_vcpu *vcpu, unsigned long server, { if (!kvmppc_xics_enabled(vcpu)) return H_TOO_HARD; - if (xics_on_xive()) { - if (is_rm()) - return xive_rm_h_ipi(vcpu, server, mfrr); - if (unlikely(!__xive_vm_h_ipi)) - return H_NOT_AVAILABLE; - return __xive_vm_h_ipi(vcpu, server, mfrr); - } else + if (xics_on_xive()) + return xive_rm_h_ipi(vcpu, server, mfrr); + else return xics_rm_h_ipi(vcpu, server, mfrr); } @@ -608,13 +565,9 @@ int kvmppc_rm_h_cppr(struct kvm_vcpu *vcpu, unsigned long cppr) { if (!kvmppc_xics_enabled(vcpu)) return H_TOO_HARD; - if (xics_on_xive()) { - if (is_rm()) - return xive_rm_h_cppr(vcpu, cppr); - if (unlikely(!__xive_vm_h_cppr)) - return H_NOT_AVAILABLE; - return __xive_vm_h_cppr(vcpu, cppr); - } else + if (xics_on_xive()) + return xive_rm_h_cppr(vcpu, cppr); + else return xics_rm_h_cppr(vcpu, cppr); } @@ -622,13 +575,9 @@ int kvmppc_rm_h_eoi(struct kvm_vcpu *vcpu, unsigned long xirr) { if (!kvmppc_xics_enabled(vcpu)) return H_TOO_HARD; - if (xics_on_xive()) { - if (is_rm()) - return xive_rm_h_eoi(vcpu, xirr); - if (unlikely(!__xive_vm_h_eoi)) - return H_NOT_AVAILABLE; - return __xive_vm_h_eoi(vcpu, xirr); - } else + if (xics_on_xive()) + return xive_rm_h_eoi(vcpu, xirr); + else return xics_rm_h_eoi(vcpu, xirr); } #endif /* CONFIG_KVM_XICS */ diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index 87fa8bda3515..1bc5a3805a26 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -2299,7 +2299,7 @@ hcall_real_table: #else .long 0 /* 0x2fc - H_XIRR_X*/ #endif - .long DOTSYM(kvmppc_h_random) - hcall_real_table + .long DOTSYM(kvmppc_rm_h_random) - hcall_real_table .globl hcall_real_table_end hcall_real_table_end: diff --git a/arch/powerpc/kvm/book3s_xive.c b/arch/powerpc/kvm/book3s_xive.c index 24c07094651a..9268d386b128 100644 --- a/arch/powerpc/kvm/book3s_xive.c +++ b/arch/powerpc/kvm/book3s_xive.c @@ -2352,21 +2352,3 @@ struct kvm_device_ops kvm_xive_ops = { .get_attr = xive_get_attr, .has_attr = xive_has_attr, }; - -void kvmppc_xive_init_module(void) -{ - __xive_vm_h_xirr = xive_vm_h_xirr; - __xive_vm_h_ipoll = xive_vm_h_ipoll; - __xive_vm_h_ipi = xive_vm_h_ipi; - __xive_vm_h_cppr = xive_vm_h_cppr; - __xive_vm_h_eoi = xive_vm_h_eoi; -} - -void kvmppc_xive_exit_module(void) -{ - __xive_vm_h_xirr = NULL; - __xive_vm_h_ipoll = NULL; - __xive_vm_h_ipi = NULL; - __xive_vm_h_cppr = NULL; - __xive_vm_h_eoi = NULL; -} diff --git a/arch/powerpc/kvm/book3s_xive.h b/arch/powerpc/kvm/book3s_xive.h index 86c24a4ad809..afe9eeac6d56 100644 --- a/arch/powerpc/kvm/book3s_xive.h +++ b/arch/powerpc/kvm/book3s_xive.h @@ -289,13 +289,6 @@ extern int xive_rm_h_ipi(struct kvm_vcpu *vcpu, unsigned long server, extern int xive_rm_h_cppr(struct kvm_vcpu *vcpu, unsigned long cppr); extern int xive_rm_h_eoi(struct kvm_vcpu *vcpu, unsigned long xirr); -extern unsigned long (*__xive_vm_h_xirr)(struct kvm_vcpu *vcpu); -extern unsigned long (*__xive_vm_h_ipoll)(struct kvm_vcpu *vcpu, unsigned long server); -extern int (*__xive_vm_h_ipi)(struct kvm_vcpu *vcpu, unsigned long server, - unsigned long mfrr); -extern int (*__xive_vm_h_cppr)(struct kvm_vcpu *vcpu, unsigned long cppr); -extern int (*__xive_vm_h_eoi)(struct kvm_vcpu *vcpu, unsigned long xirr); - /* * Common Xive routines for XICS-over-XIVE and XIVE native */ diff --git a/arch/powerpc/kvm/book3s_xive_native.c b/arch/powerpc/kvm/book3s_xive_native.c index 76800c84f2a3..1253666dd4d8 100644 --- a/arch/powerpc/kvm/book3s_xive_native.c +++ b/arch/powerpc/kvm/book3s_xive_native.c @@ -1281,13 +1281,3 @@ struct kvm_device_ops kvm_xive_native_ops = { .has_attr = kvmppc_xive_native_has_attr, .mmap = kvmppc_xive_native_mmap, }; - -void kvmppc_xive_native_init_module(void) -{ - ; -} - -void kvmppc_xive_native_exit_module(void) -{ - ; -} -- 2.23.0