[v3,12/33] KVM: PPC: Use ccr field in pt_regs struct embedded in vcpu struct

Message ID	1538479892-14835-13-git-send-email-paulus@ozlabs.org (mailing list archive)
State	New, archived
Headers	show Return-Path: <kvm-owner@kernel.org> From: Paul Mackerras <paulus@ozlabs.org> To: kvm@vger.kernel.org, kvm-ppc@vger.kernel.org Cc: linuxppc-dev@ozlabs.org, David Gibson <david@gibson.dropbear.id.au> Subject: [PATCH v3 12/33] KVM: PPC: Use ccr field in pt_regs struct embedded in vcpu struct Date: Tue, 2 Oct 2018 21:31:11 +1000 Message-Id: <1538479892-14835-13-git-send-email-paulus@ozlabs.org> In-Reply-To: <1538479892-14835-1-git-send-email-paulus@ozlabs.org> References: <1538479892-14835-1-git-send-email-paulus@ozlabs.org> Sender: kvm-owner@vger.kernel.org Precedence: bulk
Series	KVM: PPC: Book3S HV: Nested HV virtualization \| expand [v3,00/33] KVM: PPC: Book3S HV: Nested HV virtualization [v3,01/33] powerpc: Turn off CPU_FTR_P9_TM_HV_ASSIST in non-hypervisor mode [v3,02/33] KVM: PPC: Book3S: Simplify external interrupt handling [v3,03/33] KVM: PPC: Book3S HV: Remove left-over code in XICS-on-XIVE emulation [v3,04/33] KVM: PPC: Book3S HV: Move interrupt delivery on guest entry to C code [v3,05/33] KVM: PPC: Book3S HV: Extract PMU save/restore operations as C-callable functions [v3,06/33] KVM: PPC: Book3S HV: Simplify real-mode interrupt handling [v3,07/33] KVM: PPC: Book3S: Rework TM save/restore code and make it C-callable [v3,08/33] KVM: PPC: Book3S HV: Call kvmppc_handle_exit_hv() with vcore unlocked [v3,09/33] KVM: PPC: Book3S HV: Streamlined guest entry/exit path on P9 for radix guests [v3,10/33] KVM: PPC: Book3S HV: Handle hypervisor instruction faults better [v3,11/33] KVM: PPC: Book3S HV: Add a debugfs file to dump radix mappings [v3,12/33] KVM: PPC: Use ccr field in pt_regs struct embedded in vcpu struct [v3,13/33] KVM: PPC: Book3S HV: Clear partition table entry on vm teardown [v3,14/33] KVM: PPC: Book3S HV: Make kvmppc_mmu_radix_xlate process/partition table agnostic [v3,15/33] KVM: PPC: Book3S HV: Refactor radix page fault handler [v3,16/33] KVM: PPC: Book3S HV: Use kvmppc_unmap_pte() in kvm_unmap_radix() [v3,17/33] KVM: PPC: Book3S HV: Framework and hcall stubs for nested virtualization [v3,18/33] KVM: PPC: Book3S HV: Nested guest entry via hypercall [v3,19/33] KVM: PPC: Book3S HV: Use XICS hypercalls when running as a nested hypervisor [v3,20/33] KVM: PPC: Book3S HV: Handle hypercalls correctly when nested [v3,21/33] KVM: PPC: Book3S HV: Framework to handle HV Emulation Assist Interrupt [v3,22/33] KVM: PPC: Book3S HV: Handle page fault for a nested guest [v3,23/33] KVM: PPC: Book3S HV: Introduce rmap to track nested guest mappings [v3,24/33] KVM: PPC: Book3S HV: Emulate Privileged TLBIE for guest hypervisors [v3,25/33] KVM: PPC: Book3S HV: Invalidate TLB when nested vcpu moves physical cpu [v3,26/33] KVM: PPC: Book3S HV: Don't access HFSCR, LPIDR or LPCR when running nested [v3,27/33] KVM: PPC: Book3S HV: Add one-reg interface to virtual PTCR register [v3,28/33] KVM: PPC: Book3S HV: Sanitise hv_regs on nested guest entry [v3,29/33] KVM: PPC: Book3S HV: Handle differing endianness for H_ENTER_NESTED [v3,30/33] KVM: PPC: Book3S HV: Allow HV module to load without hypervisor mode [v3,31/33] KVM: PPC: Book3S HV: Add nested shadow page tables to debugfs [v3,32/33] KVM: PPC: Book3S HV: Use hypercalls for TLB invalidation when nested [v3,33/33] KVM: PPC: Book3S HV: Add a VM capability to enable nested virtualization

diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index 83a9aa3..dd18d81 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -301,12 +301,12 @@ static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) { - vcpu->arch.cr = val; + vcpu->arch.regs.ccr = val; } static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) { - return vcpu->arch.cr; + return vcpu->arch.regs.ccr; } static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val) diff --git a/arch/powerpc/include/asm/kvm_book3s_64.h b/arch/powerpc/include/asm/kvm_book3s_64.h index af25aaa..5c0e2d9 100644 --- a/arch/powerpc/include/asm/kvm_book3s_64.h +++ b/arch/powerpc/include/asm/kvm_book3s_64.h @@ -483,7 +483,7 @@ static inline u64 sanitize_msr(u64 msr) #ifdef CONFIG_PPC_TRANSACTIONAL_MEM static inline void copy_from_checkpoint(struct kvm_vcpu *vcpu) { - vcpu->arch.cr = vcpu->arch.cr_tm; + vcpu->arch.regs.ccr = vcpu->arch.cr_tm; vcpu->arch.regs.xer = vcpu->arch.xer_tm; vcpu->arch.regs.link = vcpu->arch.lr_tm; vcpu->arch.regs.ctr = vcpu->arch.ctr_tm; @@ -500,7 +500,7 @@ static inline void copy_from_checkpoint(struct kvm_vcpu *vcpu) static inline void copy_to_checkpoint(struct kvm_vcpu *vcpu) { - vcpu->arch.cr_tm = vcpu->arch.cr; + vcpu->arch.cr_tm = vcpu->arch.regs.ccr; vcpu->arch.xer_tm = vcpu->arch.regs.xer; vcpu->arch.lr_tm = vcpu->arch.regs.link; vcpu->arch.ctr_tm = vcpu->arch.regs.ctr; diff --git a/arch/powerpc/include/asm/kvm_booke.h b/arch/powerpc/include/asm/kvm_booke.h index d513e3e..f0cef62 100644 --- a/arch/powerpc/include/asm/kvm_booke.h +++ b/arch/powerpc/include/asm/kvm_booke.h @@ -46,12 +46,12 @@ static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) { - vcpu->arch.cr = val; + vcpu->arch.regs.ccr = val; } static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) { - return vcpu->arch.cr; + return vcpu->arch.regs.ccr; } static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val) diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h index a3d4f61..c9cc42f 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -538,8 +538,6 @@ struct kvm_vcpu_arch { ulong tar; #endif - u32 cr; - #ifdef CONFIG_PPC_BOOK3S ulong hflags; ulong guest_owned_ext; diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 89cf155..7c3738d 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -438,7 +438,7 @@ int main(void) #ifdef CONFIG_PPC_BOOK3S OFFSET(VCPU_TAR, kvm_vcpu, arch.tar); #endif - OFFSET(VCPU_CR, kvm_vcpu, arch.cr); + OFFSET(VCPU_CR, kvm_vcpu, arch.regs.ccr); OFFSET(VCPU_PC, kvm_vcpu, arch.regs.nip); #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE OFFSET(VCPU_MSR, kvm_vcpu, arch.shregs.msr); @@ -695,7 +695,7 @@ int main(void) #endif /* CONFIG_PPC_BOOK3S_64 */ #else /* CONFIG_PPC_BOOK3S */ - OFFSET(VCPU_CR, kvm_vcpu, arch.cr); + OFFSET(VCPU_CR, kvm_vcpu, arch.regs.ccr); OFFSET(VCPU_XER, kvm_vcpu, arch.regs.xer); OFFSET(VCPU_LR, kvm_vcpu, arch.regs.link); OFFSET(VCPU_CTR, kvm_vcpu, arch.regs.ctr); diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c index 36b11c5..2654df2 100644 --- a/arch/powerpc/kvm/book3s_emulate.c +++ b/arch/powerpc/kvm/book3s_emulate.c @@ -110,7 +110,7 @@ static inline void kvmppc_copyto_vcpu_tm(struct kvm_vcpu *vcpu) vcpu->arch.ctr_tm = vcpu->arch.regs.ctr; vcpu->arch.tar_tm = vcpu->arch.tar; vcpu->arch.lr_tm = vcpu->arch.regs.link; - vcpu->arch.cr_tm = vcpu->arch.cr; + vcpu->arch.cr_tm = vcpu->arch.regs.ccr; vcpu->arch.xer_tm = vcpu->arch.regs.xer; vcpu->arch.vrsave_tm = vcpu->arch.vrsave; } @@ -129,7 +129,7 @@ static inline void kvmppc_copyfrom_vcpu_tm(struct kvm_vcpu *vcpu) vcpu->arch.regs.ctr = vcpu->arch.ctr_tm; vcpu->arch.tar = vcpu->arch.tar_tm; vcpu->arch.regs.link = vcpu->arch.lr_tm; - vcpu->arch.cr = vcpu->arch.cr_tm; + vcpu->arch.regs.ccr = vcpu->arch.cr_tm; vcpu->arch.regs.xer = vcpu->arch.xer_tm; vcpu->arch.vrsave = vcpu->arch.vrsave_tm; } @@ -141,7 +141,7 @@ static void kvmppc_emulate_treclaim(struct kvm_vcpu *vcpu, int ra_val) uint64_t texasr; /* CR0 = 0 | MSR[TS] | 0 */ - vcpu->arch.cr = (vcpu->arch.cr & ~(CR0_MASK << CR0_SHIFT)) | + vcpu->arch.regs.ccr = (vcpu->arch.regs.ccr & ~(CR0_MASK << CR0_SHIFT)) | (((guest_msr & MSR_TS_MASK) >> (MSR_TS_S_LG - 1)) << CR0_SHIFT); @@ -220,7 +220,7 @@ void kvmppc_emulate_tabort(struct kvm_vcpu *vcpu, int ra_val) tm_abort(ra_val); /* CR0 = 0 | MSR[TS] | 0 */ - vcpu->arch.cr = (vcpu->arch.cr & ~(CR0_MASK << CR0_SHIFT)) | + vcpu->arch.regs.ccr = (vcpu->arch.regs.ccr & ~(CR0_MASK << CR0_SHIFT)) | (((guest_msr & MSR_TS_MASK) >> (MSR_TS_S_LG - 1)) << CR0_SHIFT); @@ -494,8 +494,8 @@ int kvmppc_core_emulate_op_pr(struct kvm_run *run, struct kvm_vcpu *vcpu, if (!(kvmppc_get_msr(vcpu) & MSR_PR)) { preempt_disable(); - vcpu->arch.cr = (CR0_TBEGIN_FAILURE | - (vcpu->arch.cr & ~(CR0_MASK << CR0_SHIFT))); + vcpu->arch.regs.ccr = (CR0_TBEGIN_FAILURE | + (vcpu->arch.regs.ccr & ~(CR0_MASK << CR0_SHIFT))); vcpu->arch.texasr = (TEXASR_FS | TEXASR_EXACT | (((u64)(TM_CAUSE_EMULATE | TM_CAUSE_PERSISTENT)) diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index aa13728..01a0532 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -410,8 +410,8 @@ static void kvmppc_dump_regs(struct kvm_vcpu *vcpu) vcpu->arch.shregs.sprg0, vcpu->arch.shregs.sprg1); pr_err("sprg2 = %.16llx sprg3 = %.16llx\n", vcpu->arch.shregs.sprg2, vcpu->arch.shregs.sprg3); - pr_err("cr = %.8x xer = %.16lx dsisr = %.8x\n", - vcpu->arch.cr, vcpu->arch.regs.xer, vcpu->arch.shregs.dsisr); + pr_err("cr = %.8lx xer = %.16lx dsisr = %.8x\n", + vcpu->arch.regs.ccr, vcpu->arch.regs.xer, vcpu->arch.shregs.dsisr); pr_err("dar = %.16llx\n", vcpu->arch.shregs.dar); pr_err("fault dar = %.16lx dsisr = %.8x\n", vcpu->arch.fault_dar, vcpu->arch.fault_dsisr); diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index 2abc336..83efc13 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -1092,7 +1092,7 @@ BEGIN_FTR_SECTION END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR) ld r5, VCPU_LR(r4) - lwz r6, VCPU_CR(r4) + ld r6, VCPU_CR(r4) mtlr r5 mtcr r6 @@ -1280,7 +1280,7 @@ kvmppc_interrupt_hv: std r3, VCPU_GPR(R12)(r9) /* CR is in the high half of r12 */ srdi r4, r12, 32 - stw r4, VCPU_CR(r9) + std r4, VCPU_CR(r9) BEGIN_FTR_SECTION ld r3, HSTATE_CFAR(r13) std r3, VCPU_CFAR(r9) diff --git a/arch/powerpc/kvm/book3s_hv_tm.c b/arch/powerpc/kvm/book3s_hv_tm.c index 0082850..888e260 100644 --- a/arch/powerpc/kvm/book3s_hv_tm.c +++ b/arch/powerpc/kvm/book3s_hv_tm.c @@ -130,7 +130,7 @@ int kvmhv_p9_tm_emulation(struct kvm_vcpu *vcpu) return RESUME_GUEST; } /* Set CR0 to indicate previous transactional state */ - vcpu->arch.cr = (vcpu->arch.cr & 0x0fffffff) | + vcpu->arch.regs.ccr = (vcpu->arch.regs.ccr & 0x0fffffff) | (((msr & MSR_TS_MASK) >> MSR_TS_S_LG) << 28); /* L=1 => tresume, L=0 => tsuspend */ if (instr & (1 << 21)) { @@ -174,7 +174,7 @@ int kvmhv_p9_tm_emulation(struct kvm_vcpu *vcpu) copy_from_checkpoint(vcpu); /* Set CR0 to indicate previous transactional state */ - vcpu->arch.cr = (vcpu->arch.cr & 0x0fffffff) | + vcpu->arch.regs.ccr = (vcpu->arch.regs.ccr & 0x0fffffff) | (((msr & MSR_TS_MASK) >> MSR_TS_S_LG) << 28); vcpu->arch.shregs.msr &= ~MSR_TS_MASK; return RESUME_GUEST; @@ -204,7 +204,7 @@ int kvmhv_p9_tm_emulation(struct kvm_vcpu *vcpu) copy_to_checkpoint(vcpu); /* Set CR0 to indicate previous transactional state */ - vcpu->arch.cr = (vcpu->arch.cr & 0x0fffffff) | + vcpu->arch.regs.ccr = (vcpu->arch.regs.ccr & 0x0fffffff) | (((msr & MSR_TS_MASK) >> MSR_TS_S_LG) << 28); vcpu->arch.shregs.msr = msr | MSR_TS_S; return RESUME_GUEST; diff --git a/arch/powerpc/kvm/book3s_hv_tm_builtin.c b/arch/powerpc/kvm/book3s_hv_tm_builtin.c index b2c7c6f..3cf5863 100644 --- a/arch/powerpc/kvm/book3s_hv_tm_builtin.c +++ b/arch/powerpc/kvm/book3s_hv_tm_builtin.c @@ -89,7 +89,8 @@ int kvmhv_p9_tm_emulation_early(struct kvm_vcpu *vcpu) if (instr & (1 << 21)) vcpu->arch.shregs.msr = (msr & ~MSR_TS_MASK) | MSR_TS_T; /* Set CR0 to 0b0010 */ - vcpu->arch.cr = (vcpu->arch.cr & 0x0fffffff) | 0x20000000; + vcpu->arch.regs.ccr = (vcpu->arch.regs.ccr & 0x0fffffff) | + 0x20000000; return 1; } @@ -105,5 +106,5 @@ void kvmhv_emulate_tm_rollback(struct kvm_vcpu *vcpu) vcpu->arch.shregs.msr &= ~MSR_TS_MASK; /* go to N state */ vcpu->arch.regs.nip = vcpu->arch.tfhar; copy_from_checkpoint(vcpu); - vcpu->arch.cr = (vcpu->arch.cr & 0x0fffffff) | 0xa0000000; + vcpu->arch.regs.ccr = (vcpu->arch.regs.ccr & 0x0fffffff) | 0xa0000000; } diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index 059683e4..4efd65d 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -167,7 +167,7 @@ void kvmppc_copy_to_svcpu(struct kvm_vcpu *vcpu) svcpu->gpr[11] = vcpu->arch.regs.gpr[11]; svcpu->gpr[12] = vcpu->arch.regs.gpr[12]; svcpu->gpr[13] = vcpu->arch.regs.gpr[13]; - svcpu->cr = vcpu->arch.cr; + svcpu->cr = vcpu->arch.regs.ccr; svcpu->xer = vcpu->arch.regs.xer; svcpu->ctr = vcpu->arch.regs.ctr; svcpu->lr = vcpu->arch.regs.link; @@ -249,7 +249,7 @@ void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu) vcpu->arch.regs.gpr[11] = svcpu->gpr[11]; vcpu->arch.regs.gpr[12] = svcpu->gpr[12]; vcpu->arch.regs.gpr[13] = svcpu->gpr[13]; - vcpu->arch.cr = svcpu->cr; + vcpu->arch.regs.ccr = svcpu->cr; vcpu->arch.regs.xer = svcpu->xer; vcpu->arch.regs.ctr = svcpu->ctr; vcpu->arch.regs.link = svcpu->lr; diff --git a/arch/powerpc/kvm/bookehv_interrupts.S b/arch/powerpc/kvm/bookehv_interrupts.S index 81bd8a07..051af7d 100644 --- a/arch/powerpc/kvm/bookehv_interrupts.S +++ b/arch/powerpc/kvm/bookehv_interrupts.S @@ -182,7 +182,7 @@ */ PPC_LL r4, PACACURRENT(r13) PPC_LL r4, (THREAD + THREAD_KVM_VCPU)(r4) - stw r10, VCPU_CR(r4) + PPC_STL r10, VCPU_CR(r4) PPC_STL r11, VCPU_GPR(R4)(r4) PPC_STL r5, VCPU_GPR(R5)(r4) PPC_STL r6, VCPU_GPR(R6)(r4) @@ -292,7 +292,7 @@ _GLOBAL(kvmppc_handler_\intno\()_\srr1) PPC_STL r4, VCPU_GPR(R4)(r11) PPC_LL r4, THREAD_NORMSAVE(0)(r10) PPC_STL r5, VCPU_GPR(R5)(r11) - stw r13, VCPU_CR(r11) + PPC_STL r13, VCPU_CR(r11) mfspr r5, \srr0 PPC_STL r3, VCPU_GPR(R10)(r11) PPC_LL r3, THREAD_NORMSAVE(2)(r10) @@ -319,7 +319,7 @@ _GLOBAL(kvmppc_handler_\intno\()_\srr1) PPC_STL r4, VCPU_GPR(R4)(r11) PPC_LL r4, GPR9(r8) PPC_STL r5, VCPU_GPR(R5)(r11) - stw r9, VCPU_CR(r11) + PPC_STL r9, VCPU_CR(r11) mfspr r5, \srr0 PPC_STL r3, VCPU_GPR(R8)(r11) PPC_LL r3, GPR10(r8) @@ -643,7 +643,7 @@ lightweight_exit: PPC_LL r3, VCPU_LR(r4) PPC_LL r5, VCPU_XER(r4) PPC_LL r6, VCPU_CTR(r4) - lwz r7, VCPU_CR(r4) + PPC_LL r7, VCPU_CR(r4) PPC_LL r8, VCPU_PC(r4) PPC_LD(r9, VCPU_SHARED_MSR, r11) PPC_LL r0, VCPU_GPR(R0)(r4) diff --git a/arch/powerpc/kvm/emulate_loadstore.c b/arch/powerpc/kvm/emulate_loadstore.c index 75dce1e..f91b130 100644 --- a/arch/powerpc/kvm/emulate_loadstore.c +++ b/arch/powerpc/kvm/emulate_loadstore.c @@ -117,7 +117,6 @@ int kvmppc_emulate_loadstore(struct kvm_vcpu *vcpu) emulated = EMULATE_FAIL; vcpu->arch.regs.msr = vcpu->arch.shared->msr; - vcpu->arch.regs.ccr = vcpu->arch.cr; if (analyse_instr(&op, &vcpu->arch.regs, inst) == 0) { int type = op.type & INSTR_TYPE_MASK; int size = GETSIZE(op.type);

[v3,12/33] KVM: PPC: Use ccr field in pt_regs struct embedded in vcpu struct

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