diff options
Diffstat (limited to 'arch/powerpc/kvm')
30 files changed, 3583 insertions, 1281 deletions
diff --git a/arch/powerpc/kvm/44x.c b/arch/powerpc/kvm/44x.c index 7b612a76c70..50e7dbc7356 100644 --- a/arch/powerpc/kvm/44x.c +++ b/arch/powerpc/kvm/44x.c @@ -29,15 +29,18 @@ #include <asm/kvm_ppc.h> #include "44x_tlb.h" +#include "booke.h" void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu) { + kvmppc_booke_vcpu_load(vcpu, cpu); kvmppc_44x_tlb_load(vcpu); } void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu) { kvmppc_44x_tlb_put(vcpu); + kvmppc_booke_vcpu_put(vcpu); } int kvmppc_core_check_processor_compat(void) @@ -160,6 +163,15 @@ void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu) kmem_cache_free(kvm_vcpu_cache, vcpu_44x); } +int kvmppc_core_init_vm(struct kvm *kvm) +{ + return 0; +} + +void kvmppc_core_destroy_vm(struct kvm *kvm) +{ +} + static int __init kvmppc_44x_init(void) { int r; diff --git a/arch/powerpc/kvm/44x_emulate.c b/arch/powerpc/kvm/44x_emulate.c index 549bb2c9a47..c8c61578fdf 100644 --- a/arch/powerpc/kvm/44x_emulate.c +++ b/arch/powerpc/kvm/44x_emulate.c @@ -37,22 +37,19 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, unsigned int inst, int *advance) { int emulated = EMULATE_DONE; - int dcrn; - int ra; - int rb; - int rc; - int rs; - int rt; - int ws; + int dcrn = get_dcrn(inst); + int ra = get_ra(inst); + int rb = get_rb(inst); + int rc = get_rc(inst); + int rs = get_rs(inst); + int rt = get_rt(inst); + int ws = get_ws(inst); switch (get_op(inst)) { case 31: switch (get_xop(inst)) { case XOP_MFDCR: - dcrn = get_dcrn(inst); - rt = get_rt(inst); - /* The guest may access CPR0 registers to determine the timebase * frequency, and it must know the real host frequency because it * can directly access the timebase registers. @@ -88,9 +85,6 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, break; case XOP_MTDCR: - dcrn = get_dcrn(inst); - rs = get_rs(inst); - /* emulate some access in kernel */ switch (dcrn) { case DCRN_CPR0_CONFIG_ADDR: @@ -108,17 +102,10 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, break; case XOP_TLBWE: - ra = get_ra(inst); - rs = get_rs(inst); - ws = get_ws(inst); emulated = kvmppc_44x_emul_tlbwe(vcpu, ra, rs, ws); break; case XOP_TLBSX: - rt = get_rt(inst); - ra = get_ra(inst); - rb = get_rb(inst); - rc = get_rc(inst); emulated = kvmppc_44x_emul_tlbsx(vcpu, rt, ra, rb, rc); break; @@ -141,41 +128,41 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, return emulated; } -int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs) +int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val) { int emulated = EMULATE_DONE; switch (sprn) { case SPRN_PID: - kvmppc_set_pid(vcpu, kvmppc_get_gpr(vcpu, rs)); break; + kvmppc_set_pid(vcpu, spr_val); break; case SPRN_MMUCR: - vcpu->arch.mmucr = kvmppc_get_gpr(vcpu, rs); break; + vcpu->arch.mmucr = spr_val; break; case SPRN_CCR0: - vcpu->arch.ccr0 = kvmppc_get_gpr(vcpu, rs); break; + vcpu->arch.ccr0 = spr_val; break; case SPRN_CCR1: - vcpu->arch.ccr1 = kvmppc_get_gpr(vcpu, rs); break; + vcpu->arch.ccr1 = spr_val; break; default: - emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, rs); + emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, spr_val); } return emulated; } -int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt) +int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val) { int emulated = EMULATE_DONE; switch (sprn) { case SPRN_PID: - kvmppc_set_gpr(vcpu, rt, vcpu->arch.pid); break; + *spr_val = vcpu->arch.pid; break; case SPRN_MMUCR: - kvmppc_set_gpr(vcpu, rt, vcpu->arch.mmucr); break; + *spr_val = vcpu->arch.mmucr; break; case SPRN_CCR0: - kvmppc_set_gpr(vcpu, rt, vcpu->arch.ccr0); break; + *spr_val = vcpu->arch.ccr0; break; case SPRN_CCR1: - kvmppc_set_gpr(vcpu, rt, vcpu->arch.ccr1); break; + *spr_val = vcpu->arch.ccr1; break; default: - emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, rt); + emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, spr_val); } return emulated; diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig index 8f64709ae33..f4dacb9c57f 100644 --- a/arch/powerpc/kvm/Kconfig +++ b/arch/powerpc/kvm/Kconfig @@ -90,6 +90,9 @@ config KVM_BOOK3S_64_PR depends on KVM_BOOK3S_64 && !KVM_BOOK3S_64_HV select KVM_BOOK3S_PR +config KVM_BOOKE_HV + bool + config KVM_440 bool "KVM support for PowerPC 440 processors" depends on EXPERIMENTAL && 44x @@ -106,7 +109,7 @@ config KVM_440 config KVM_EXIT_TIMING bool "Detailed exit timing" - depends on KVM_440 || KVM_E500 + depends on KVM_440 || KVM_E500V2 || KVM_E500MC ---help--- Calculate elapsed time for every exit/enter cycle. A per-vcpu report is available in debugfs kvm/vm#_vcpu#_timing. @@ -115,14 +118,29 @@ config KVM_EXIT_TIMING If unsure, say N. -config KVM_E500 - bool "KVM support for PowerPC E500 processors" - depends on EXPERIMENTAL && E500 +config KVM_E500V2 + bool "KVM support for PowerPC E500v2 processors" + depends on EXPERIMENTAL && E500 && !PPC_E500MC select KVM select KVM_MMIO ---help--- Support running unmodified E500 guest kernels in virtual machines on - E500 host processors. + E500v2 host processors. + + This module provides access to the hardware capabilities through + a character device node named /dev/kvm. + + If unsure, say N. + +config KVM_E500MC + bool "KVM support for PowerPC E500MC/E5500 processors" + depends on EXPERIMENTAL && PPC_E500MC + select KVM + select KVM_MMIO + select KVM_BOOKE_HV + ---help--- + Support running unmodified E500MC/E5500 (32-bit) guest kernels in + virtual machines on E500MC/E5500 host processors. This module provides access to the hardware capabilities through a character device node named /dev/kvm. diff --git a/arch/powerpc/kvm/Makefile b/arch/powerpc/kvm/Makefile index 3688aeecc4b..c2a08636e6d 100644 --- a/arch/powerpc/kvm/Makefile +++ b/arch/powerpc/kvm/Makefile @@ -36,7 +36,17 @@ kvm-e500-objs := \ e500.o \ e500_tlb.o \ e500_emulate.o -kvm-objs-$(CONFIG_KVM_E500) := $(kvm-e500-objs) +kvm-objs-$(CONFIG_KVM_E500V2) := $(kvm-e500-objs) + +kvm-e500mc-objs := \ + $(common-objs-y) \ + booke.o \ + booke_emulate.o \ + bookehv_interrupts.o \ + e500mc.o \ + e500_tlb.o \ + e500_emulate.o +kvm-objs-$(CONFIG_KVM_E500MC) := $(kvm-e500mc-objs) kvm-book3s_64-objs-$(CONFIG_KVM_BOOK3S_64_PR) := \ ../../../virt/kvm/coalesced_mmio.o \ @@ -44,6 +54,7 @@ kvm-book3s_64-objs-$(CONFIG_KVM_BOOK3S_64_PR) := \ book3s_paired_singles.o \ book3s_pr.o \ book3s_pr_papr.o \ + book3s_64_vio_hv.o \ book3s_emulate.o \ book3s_interrupts.o \ book3s_mmu_hpte.o \ @@ -68,6 +79,7 @@ kvm-book3s_64-module-objs := \ powerpc.o \ emulate.o \ book3s.o \ + book3s_64_vio.o \ $(kvm-book3s_64-objs-y) kvm-objs-$(CONFIG_KVM_BOOK3S_64) := $(kvm-book3s_64-module-objs) @@ -88,7 +100,8 @@ kvm-objs-$(CONFIG_KVM_BOOK3S_32) := $(kvm-book3s_32-objs) kvm-objs := $(kvm-objs-m) $(kvm-objs-y) obj-$(CONFIG_KVM_440) += kvm.o -obj-$(CONFIG_KVM_E500) += kvm.o +obj-$(CONFIG_KVM_E500V2) += kvm.o +obj-$(CONFIG_KVM_E500MC) += kvm.o obj-$(CONFIG_KVM_BOOK3S_64) += kvm.o obj-$(CONFIG_KVM_BOOK3S_32) += kvm.o diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index 7d54f4ed6d9..3f2a8360c85 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -258,7 +258,7 @@ static bool clear_irqprio(struct kvm_vcpu *vcpu, unsigned int priority) return true; } -void kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu) +int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu) { unsigned long *pending = &vcpu->arch.pending_exceptions; unsigned long old_pending = vcpu->arch.pending_exceptions; @@ -283,12 +283,17 @@ void kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu) /* Tell the guest about our interrupt status */ kvmppc_update_int_pending(vcpu, *pending, old_pending); + + return 0; } pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn) { ulong mp_pa = vcpu->arch.magic_page_pa; + if (!(vcpu->arch.shared->msr & MSR_SF)) + mp_pa = (uint32_t)mp_pa; + /* Magic page override */ if (unlikely(mp_pa) && unlikely(((gfn << PAGE_SHIFT) & KVM_PAM) == diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index c3beaeef3f6..80a57751758 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -36,13 +36,11 @@ /* POWER7 has 10-bit LPIDs, PPC970 has 6-bit LPIDs */ #define MAX_LPID_970 63 -#define NR_LPIDS (LPID_RSVD + 1) -unsigned long lpid_inuse[BITS_TO_LONGS(NR_LPIDS)]; long kvmppc_alloc_hpt(struct kvm *kvm) { unsigned long hpt; - unsigned long lpid; + long lpid; struct revmap_entry *rev; struct kvmppc_linear_info *li; @@ -72,14 +70,9 @@ long kvmppc_alloc_hpt(struct kvm *kvm) } kvm->arch.revmap = rev; - /* Allocate the guest's logical partition ID */ - do { - lpid = find_first_zero_bit(lpid_inuse, NR_LPIDS); - if (lpid >= NR_LPIDS) { - pr_err("kvm_alloc_hpt: No LPIDs free\n"); - goto out_freeboth; - } - } while (test_and_set_bit(lpid, lpid_inuse)); + lpid = kvmppc_alloc_lpid(); + if (lpid < 0) + goto out_freeboth; kvm->arch.sdr1 = __pa(hpt) | (HPT_ORDER - 18); kvm->arch.lpid = lpid; @@ -96,7 +89,7 @@ long kvmppc_alloc_hpt(struct kvm *kvm) void kvmppc_free_hpt(struct kvm *kvm) { - clear_bit(kvm->arch.lpid, lpid_inuse); + kvmppc_free_lpid(kvm->arch.lpid); vfree(kvm->arch.revmap); if (kvm->arch.hpt_li) kvm_release_hpt(kvm->arch.hpt_li); @@ -171,8 +164,7 @@ int kvmppc_mmu_hv_init(void) if (!cpu_has_feature(CPU_FTR_HVMODE)) return -EINVAL; - memset(lpid_inuse, 0, sizeof(lpid_inuse)); - + /* POWER7 has 10-bit LPIDs, PPC970 and e500mc have 6-bit LPIDs */ if (cpu_has_feature(CPU_FTR_ARCH_206)) { host_lpid = mfspr(SPRN_LPID); /* POWER7 */ rsvd_lpid = LPID_RSVD; @@ -181,9 +173,11 @@ int kvmppc_mmu_hv_init(void) rsvd_lpid = MAX_LPID_970; } - set_bit(host_lpid, lpid_inuse); + kvmppc_init_lpid(rsvd_lpid + 1); + + kvmppc_claim_lpid(host_lpid); /* rsvd_lpid is reserved for use in partition switching */ - set_bit(rsvd_lpid, lpid_inuse); + kvmppc_claim_lpid(rsvd_lpid); return 0; } @@ -452,7 +446,7 @@ static int instruction_is_store(unsigned int instr) } static int kvmppc_hv_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu, - unsigned long gpa, int is_store) + unsigned long gpa, gva_t ea, int is_store) { int ret; u32 last_inst; @@ -499,6 +493,7 @@ static int kvmppc_hv_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu, */ vcpu->arch.paddr_accessed = gpa; + vcpu->arch.vaddr_accessed = ea; return kvmppc_emulate_mmio(run, vcpu); } @@ -552,7 +547,7 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, /* No memslot means it's an emulated MMIO region */ if (!memslot || (memslot->flags & KVM_MEMSLOT_INVALID)) { unsigned long gpa = (gfn << PAGE_SHIFT) | (ea & (psize - 1)); - return kvmppc_hv_emulate_mmio(run, vcpu, gpa, + return kvmppc_hv_emulate_mmio(run, vcpu, gpa, ea, dsisr & DSISR_ISSTORE); } diff --git a/arch/powerpc/kvm/book3s_64_slb.S b/arch/powerpc/kvm/book3s_64_slb.S index f2e6e48ea46..56b983e7b73 100644 --- a/arch/powerpc/kvm/book3s_64_slb.S +++ b/arch/powerpc/kvm/book3s_64_slb.S @@ -90,8 +90,6 @@ slb_exit_skip_ ## num: or r10, r10, r12 slbie r10 - isync - /* Fill SLB with our shadow */ lbz r12, SVCPU_SLB_MAX(r3) diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c new file mode 100644 index 00000000000..72ffc899c08 --- /dev/null +++ b/arch/powerpc/kvm/book3s_64_vio.c @@ -0,0 +1,150 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * Copyright 2010 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com> + * Copyright 2011 David Gibson, IBM Corporation <dwg@au1.ibm.com> + */ + +#include <linux/types.h> +#include <linux/string.h> +#include <linux/kvm.h> +#include <linux/kvm_host.h> +#include <linux/highmem.h> +#include <linux/gfp.h> +#include <linux/slab.h> +#include <linux/hugetlb.h> +#include <linux/list.h> +#include <linux/anon_inodes.h> + +#include <asm/tlbflush.h> +#include <asm/kvm_ppc.h> +#include <asm/kvm_book3s.h> +#include <asm/mmu-hash64.h> +#include <asm/hvcall.h> +#include <asm/synch.h> +#include <asm/ppc-opcode.h> +#include <asm/kvm_host.h> +#include <asm/udbg.h> + +#define TCES_PER_PAGE (PAGE_SIZE / sizeof(u64)) + +static long kvmppc_stt_npages(unsigned long window_size) +{ + return ALIGN((window_size >> SPAPR_TCE_SHIFT) + * sizeof(u64), PAGE_SIZE) / PAGE_SIZE; +} + +static void release_spapr_tce_table(struct kvmppc_spapr_tce_table *stt) +{ + struct kvm *kvm = stt->kvm; + int i; + + mutex_lock(&kvm->lock); + list_del(&stt->list); + for (i = 0; i < kvmppc_stt_npages(stt->window_size); i++) + __free_page(stt->pages[i]); + kfree(stt); + mutex_unlock(&kvm->lock); + + kvm_put_kvm(kvm); +} + +static int kvm_spapr_tce_fault(struct vm_area_struct *vma, struct vm_fault *vmf) +{ + struct kvmppc_spapr_tce_table *stt = vma->vm_file->private_data; + struct page *page; + + if (vmf->pgoff >= kvmppc_stt_npages(stt->window_size)) + return VM_FAULT_SIGBUS; + + page = stt->pages[vmf->pgoff]; + get_page(page); + vmf->page = page; + return 0; +} + +static const struct vm_operations_struct kvm_spapr_tce_vm_ops = { + .fault = kvm_spapr_tce_fault, +}; + +static int kvm_spapr_tce_mmap(struct file *file, struct vm_area_struct *vma) +{ + vma->vm_ops = &kvm_spapr_tce_vm_ops; + return 0; +} + +static int kvm_spapr_tce_release(struct inode *inode, struct file *filp) +{ + struct kvmppc_spapr_tce_table *stt = filp->private_data; + + release_spapr_tce_table(stt); + return 0; +} + +static struct file_operations kvm_spapr_tce_fops = { + .mmap = kvm_spapr_tce_mmap, + .release = kvm_spapr_tce_release, +}; + +long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm, + struct kvm_create_spapr_tce *args) +{ + struct kvmppc_spapr_tce_table *stt = NULL; + long npages; + int ret = -ENOMEM; + int i; + + /* Check this LIOBN hasn't been previously allocated */ + list_for_each_entry(stt, &kvm->arch.spapr_tce_tables, list) { + if (stt->liobn == args->liobn) + return -EBUSY; + } + + npages = kvmppc_stt_npages(args->window_size); + + stt = kzalloc(sizeof(*stt) + npages * sizeof(struct page *), + GFP_KERNEL); + if (!stt) + goto fail; + + stt->liobn = args->liobn; + stt->window_size = args->window_size; + stt->kvm = kvm; + + for (i = 0; i < npages; i++) { + stt->pages[i] = alloc_page(GFP_KERNEL | __GFP_ZERO); + if (!stt->pages[i]) + goto fail; + } + + kvm_get_kvm(kvm); + + mutex_lock(&kvm->lock); + list_add(&stt->list, &kvm->arch.spapr_tce_tables); + + mutex_unlock(&kvm->lock); + + return anon_inode_getfd("kvm-spapr-tce", &kvm_spapr_tce_fops, + stt, O_RDWR); + +fail: + if (stt) { + for (i = 0; i < npages; i++) + if (stt->pages[i]) + __free_page(stt->pages[i]); + + kfree(stt); + } + return ret; +} diff --git a/arch/powerpc/kvm/book3s_64_vio_hv.c b/arch/powerpc/kvm/book3s_64_vio_hv.c index ea0f8c537c2..30c2f3b134c 100644 --- a/arch/powerpc/kvm/book3s_64_vio_hv.c +++ b/arch/powerpc/kvm/book3s_64_vio_hv.c @@ -38,6 +38,9 @@ #define TCES_PER_PAGE (PAGE_SIZE / sizeof(u64)) +/* WARNING: This will be called in real-mode on HV KVM and virtual + * mode on PR KVM + */ long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn, unsigned long ioba, unsigned long tce) { diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c index 135663a3e4f..b9a989dc76c 100644 --- a/arch/powerpc/kvm/book3s_emulate.c +++ b/arch/powerpc/kvm/book3s_emulate.c @@ -87,6 +87,10 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, unsigned int inst, int *advance) { int emulated = EMULATE_DONE; + int rt = get_rt(inst); + int rs = get_rs(inst); + int ra = get_ra(inst); + int rb = get_rb(inst); switch (get_op(inst)) { case 19: @@ -106,21 +110,22 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, case 31: switch (get_xop(inst)) { case OP_31_XOP_MFMSR: - kvmppc_set_gpr(vcpu, get_rt(inst), - vcpu->arch.shared->msr); + kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->msr); break; case OP_31_XOP_MTMSRD: { - ulong rs = kvmppc_get_gpr(vcpu, get_rs(inst)); + ulong rs_val = kvmppc_get_gpr(vcpu, rs); if (inst & 0x10000) { - vcpu->arch.shared->msr &= ~(MSR_RI | MSR_EE); - vcpu->arch.shared->msr |= rs & (MSR_RI | MSR_EE); + ulong new_msr = vcpu->arch.shared->msr; + new_msr &= ~(MSR_RI | MSR_EE); + new_msr |= rs_val & (MSR_RI | MSR_EE); + vcpu->arch.shared->msr = new_msr; } else - kvmppc_set_msr(vcpu, rs); + kvmppc_set_msr(vcpu, rs_val); break; } case OP_31_XOP_MTMSR: - kvmppc_set_msr(vcpu, kvmppc_get_gpr(vcpu, get_rs(inst))); + kvmppc_set_msr(vcpu, kvmppc_get_gpr(vcpu, rs)); break; case OP_31_XOP_MFSR: { @@ -130,7 +135,7 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, if (vcpu->arch.mmu.mfsrin) { u32 sr; sr = vcpu->arch.mmu.mfsrin(vcpu, srnum); - kvmppc_set_gpr(vcpu, get_rt(inst), sr); + kvmppc_set_gpr(vcpu, rt, sr); } break; } @@ -138,29 +143,29 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, { int srnum; - srnum = (kvmppc_get_gpr(vcpu, get_rb(inst)) >> 28) & 0xf; + srnum = (kvmppc_get_gpr(vcpu, rb) >> 28) & 0xf; if (vcpu->arch.mmu.mfsrin) { u32 sr; sr = vcpu->arch.mmu.mfsrin(vcpu, srnum); - kvmppc_set_gpr(vcpu, get_rt(inst), sr); + kvmppc_set_gpr(vcpu, rt, sr); } break; } case OP_31_XOP_MTSR: vcpu->arch.mmu.mtsrin(vcpu, (inst >> 16) & 0xf, - kvmppc_get_gpr(vcpu, get_rs(inst))); + kvmppc_get_gpr(vcpu, rs)); break; case OP_31_XOP_MTSRIN: vcpu->arch.mmu.mtsrin(vcpu, - (kvmppc_get_gpr(vcpu, get_rb(inst)) >> 28) & 0xf, - kvmppc_get_gpr(vcpu, get_rs(inst))); + (kvmppc_get_gpr(vcpu, rb) >> 28) & 0xf, + kvmppc_get_gpr(vcpu, rs)); break; case OP_31_XOP_TLBIE: case OP_31_XOP_TLBIEL: { bool large = (inst & 0x00200000) ? true : false; - ulong addr = kvmppc_get_gpr(vcpu, get_rb(inst)); + ulong addr = kvmppc_get_gpr(vcpu, rb); vcpu->arch.mmu.tlbie(vcpu, addr, large); break; } @@ -171,15 +176,15 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, return EMULATE_FAIL; vcpu->arch.mmu.slbmte(vcpu, - kvmppc_get_gpr(vcpu, get_rs(inst)), - kvmppc_get_gpr(vcpu, get_rb(inst))); + kvmppc_get_gpr(vcpu, rs), + kvmppc_get_gpr(vcpu, rb)); break; case OP_31_XOP_SLBIE: if (!vcpu->arch.mmu.slbie) return EMULATE_FAIL; vcpu->arch.mmu.slbie(vcpu, - kvmppc_get_gpr(vcpu, get_rb(inst))); + kvmppc_get_gpr(vcpu, rb)); break; case OP_31_XOP_SLBIA: if (!vcpu->arch.mmu.slbia) @@ -191,22 +196,22 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, if (!vcpu->arch.mmu.slbmfee) { emulated = EMULATE_FAIL; } else { - ulong t, rb; + ulong t, rb_val; - rb = kvmppc_get_gpr(vcpu, get_rb(inst)); - t = vcpu->arch.mmu.slbmfee(vcpu, rb); - kvmppc_set_gpr(vcpu, get_rt(inst), t); + rb_val = kvmppc_get_gpr(vcpu, rb); + t = vcpu->arch.mmu.slbmfee(vcpu, rb_val); + kvmppc_set_gpr(vcpu, rt, t); } break; case OP_31_XOP_SLBMFEV: if (!vcpu->arch.mmu.slbmfev) { emulated = EMULATE_FAIL; } else { - ulong t, rb; + ulong t, rb_val; - rb = kvmppc_get_gpr(vcpu, get_rb(inst)); - t = vcpu->arch.mmu.slbmfev(vcpu, rb); - kvmppc_set_gpr(vcpu, get_rt(inst), t); + rb_val = kvmppc_get_gpr(vcpu, rb); + t = vcpu->arch.mmu.slbmfev(vcpu, rb_val); + kvmppc_set_gpr(vcpu, rt, t); } break; case OP_31_XOP_DCBA: @@ -214,17 +219,17 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, break; case OP_31_XOP_DCBZ: { - ulong rb = kvmppc_get_gpr(vcpu, get_rb(inst)); - ulong ra = 0; + ulong rb_val = kvmppc_get_gpr(vcpu, rb); + ulong ra_val = 0; ulong addr, vaddr; u32 zeros[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; u32 dsisr; int r; - if (get_ra(inst)) - ra = kvmppc_get_gpr(vcpu, get_ra(inst)); + if (ra) + ra_val = kvmppc_get_gpr(vcpu, ra); - addr = (ra + rb) & ~31ULL; + addr = (ra_val + rb_val) & ~31ULL; if (!(vcpu->arch.shared->msr & MSR_SF)) addr &= 0xffffffff; vaddr = addr; @@ -313,10 +318,9 @@ static struct kvmppc_bat *kvmppc_find_bat(struct kvm_vcpu *vcpu, int sprn) return bat; } -int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs) +int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val) { int emulated = EMULATE_DONE; - ulong spr_val = kvmppc_get_gpr(vcpu, rs); switch (sprn) { case SPRN_SDR1: @@ -428,7 +432,7 @@ unprivileged: return emulated; } -int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt) +int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val) { int emulated = EMULATE_DONE; @@ -441,46 +445,46 @@ int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt) struct kvmppc_bat *bat = kvmppc_find_bat(vcpu, sprn); if (sprn % 2) - kvmppc_set_gpr(vcpu, rt, bat->raw >> 32); + *spr_val = bat->raw >> 32; else - kvmppc_set_gpr(vcpu, rt, bat->raw); + *spr_val = bat->raw; break; } case SPRN_SDR1: if (!spr_allowed(vcpu, PRIV_HYPER)) goto unprivileged; - kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->sdr1); + *spr_val = to_book3s(vcpu)->sdr1; break; case SPRN_DSISR: - kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->dsisr); + *spr_val = vcpu->arch.shared->dsisr; break; case SPRN_DAR: - kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->dar); + *spr_val = vcpu->arch.shared->dar; break; case SPRN_HIOR: - kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hior); + *spr_val = to_book3s(vcpu)->hior; break; case SPRN_HID0: - kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[0]); + *spr_val = to_book3s(vcpu)->hid[0]; break; case SPRN_HID1: - kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[1]); + *spr_val = to_book3s(vcpu)->hid[1]; break; case SPRN_HID2: case SPRN_HID2_GEKKO: - kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[2]); + *spr_val = to_book3s(vcpu)->hid[2]; break; case SPRN_HID4: case SPRN_HID4_GEKKO: - kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[4]); + *spr_val = to_book3s(vcpu)->hid[4]; break; case SPRN_HID5: - kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[5]); + *spr_val = to_book3s(vcpu)->hid[5]; break; case SPRN_CFAR: case SPRN_PURR: - kvmppc_set_gpr(vcpu, rt, 0); + *spr_val = 0; break; case SPRN_GQR0: case SPRN_GQR1: @@ -490,8 +494,7 @@ int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt) case SPRN_GQR5: case SPRN_GQR6: case SPRN_GQR7: - kvmppc_set_gpr(vcpu, rt, - to_book3s(vcpu)->gqr[sprn - SPRN_GQR0]); + *spr_val = to_book3s(vcpu)->gqr[sprn - SPRN_GQR0]; break; case SPRN_THRM1: case SPRN_THRM2: @@ -506,7 +509,7 @@ int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt) case SPRN_PMC3_GEKKO: case SPRN_PMC4_GEKKO: case SPRN_WPAR_GEKKO: - kvmppc_set_gpr(vcpu, rt, 0); + *spr_val = 0; break; default: unprivileged: @@ -565,23 +568,22 @@ u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst) ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst) { ulong dar = 0; - ulong ra; + 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: - ra = get_ra(inst); if (ra) dar = kvmppc_get_gpr(vcpu, ra); dar += (s32)((s16)inst); break; case 31: - ra = get_ra(inst); if (ra) dar = kvmppc_get_gpr(vcpu, ra); - dar += kvmppc_get_gpr(vcpu, get_rb(inst)); + dar += kvmppc_get_gpr(vcpu, rb); break; default: printk(KERN_INFO "KVM: Unaligned instruction 0x%x\n", inst); diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 108d1f58017..c6af1d62383 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -60,12 +60,20 @@ static int kvmppc_hv_setup_rma(struct kvm_vcpu *vcpu); void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu) { + struct kvmppc_vcore *vc = vcpu->arch.vcore; + local_paca->kvm_hstate.kvm_vcpu = vcpu; - local_paca->kvm_hstate.kvm_vcore = vcpu->arch.vcore; + local_paca->kvm_hstate.kvm_vcore = vc; + if (vc->runner == vcpu && vc->vcore_state != VCORE_INACTIVE) + vc->stolen_tb += mftb() - vc->preempt_tb; } void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu) { + struct kvmppc_vcore *vc = vcpu->arch.vcore; + + if (vc->runner == vcpu && vc->vcore_state != VCORE_INACTIVE) + vc->preempt_tb = mftb(); |