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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-04 10:43:01 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-04 10:43:01 -0700 |
commit | 5e83f6fbdb020b70c0e413312801424d13c58d68 (patch) | |
tree | ca270178fa891813dbc47751c331fed975d3766c /arch/s390 | |
parent | fe445c6e2cb62a566e1a89f8798de11459975710 (diff) | |
parent | 3444d7da1839b851eefedd372978d8a982316c36 (diff) | |
download | op-kernel-dev-5e83f6fbdb020b70c0e413312801424d13c58d68.zip op-kernel-dev-5e83f6fbdb020b70c0e413312801424d13c58d68.tar.gz |
Merge branch 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm
* 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (198 commits)
KVM: VMX: Fix host GDT.LIMIT corruption
KVM: MMU: using __xchg_spte more smarter
KVM: MMU: cleanup spte set and accssed/dirty tracking
KVM: MMU: don't atomicly set spte if it's not present
KVM: MMU: fix page dirty tracking lost while sync page
KVM: MMU: fix broken page accessed tracking with ept enabled
KVM: MMU: add missing reserved bits check in speculative path
KVM: MMU: fix mmu notifier invalidate handler for huge spte
KVM: x86 emulator: fix xchg instruction emulation
KVM: x86: Call mask notifiers from pic
KVM: x86: never re-execute instruction with enabled tdp
KVM: Document KVM_GET_SUPPORTED_CPUID2 ioctl
KVM: x86: emulator: inc/dec can have lock prefix
KVM: MMU: Eliminate redundant temporaries in FNAME(fetch)
KVM: MMU: Validate all gptes during fetch, not just those used for new pages
KVM: MMU: Simplify spte fetch() function
KVM: MMU: Add gpte_valid() helper
KVM: MMU: Add validate_direct_spte() helper
KVM: MMU: Add drop_large_spte() helper
KVM: MMU: Use __set_spte to link shadow pages
...
Diffstat (limited to 'arch/s390')
-rw-r--r-- | arch/s390/include/asm/kvm_host.h | 5 | ||||
-rw-r--r-- | arch/s390/kvm/intercept.c | 2 | ||||
-rw-r--r-- | arch/s390/kvm/kvm-s390.c | 64 | ||||
-rw-r--r-- | arch/s390/kvm/kvm-s390.h | 2 |
4 files changed, 24 insertions, 49 deletions
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index 27605b6..cef7dbf 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -26,7 +26,7 @@ struct sca_entry { atomic_t scn; - __u64 reserved; + __u32 reserved; __u64 sda; __u64 reserved2[2]; } __attribute__((packed)); @@ -41,7 +41,8 @@ struct sca_block { } __attribute__((packed)); #define KVM_NR_PAGE_SIZES 2 -#define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + ((x) - 1) * 8) +#define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 8) +#define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x)) #define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x)) #define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1)) #define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE) diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c index 3ddc308..f7b6df4 100644 --- a/arch/s390/kvm/intercept.c +++ b/arch/s390/kvm/intercept.c @@ -135,7 +135,7 @@ static int handle_stop(struct kvm_vcpu *vcpu) spin_lock_bh(&vcpu->arch.local_int.lock); if (vcpu->arch.local_int.action_bits & ACTION_STORE_ON_STOP) { vcpu->arch.local_int.action_bits &= ~ACTION_STORE_ON_STOP; - rc = __kvm_s390_vcpu_store_status(vcpu, + rc = kvm_s390_vcpu_store_status(vcpu, KVM_S390_STORE_STATUS_NOADDR); if (rc >= 0) rc = -EOPNOTSUPP; diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index ae37058..4fe6865 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -207,6 +207,7 @@ out_nokvm: void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu) { VCPU_EVENT(vcpu, 3, "%s", "free cpu"); + clear_bit(63 - vcpu->vcpu_id, (unsigned long *) &vcpu->kvm->arch.sca->mcn); if (vcpu->kvm->arch.sca->cpu[vcpu->vcpu_id].sda == (__u64) vcpu->arch.sie_block) vcpu->kvm->arch.sca->cpu[vcpu->vcpu_id].sda = 0; @@ -296,7 +297,7 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) { atomic_set(&vcpu->arch.sie_block->cpuflags, CPUSTAT_ZARCH); set_bit(KVM_REQ_MMU_RELOAD, &vcpu->requests); - vcpu->arch.sie_block->ecb = 2; + vcpu->arch.sie_block->ecb = 6; vcpu->arch.sie_block->eca = 0xC1002001U; vcpu->arch.sie_block->fac = (int) (long) facilities; hrtimer_init(&vcpu->arch.ckc_timer, CLOCK_REALTIME, HRTIMER_MODE_ABS); @@ -329,6 +330,7 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, kvm->arch.sca->cpu[id].sda = (__u64) vcpu->arch.sie_block; vcpu->arch.sie_block->scaoh = (__u32)(((__u64)kvm->arch.sca) >> 32); vcpu->arch.sie_block->scaol = (__u32)(__u64)kvm->arch.sca; + set_bit(63 - id, (unsigned long *) &kvm->arch.sca->mcn); spin_lock_init(&vcpu->arch.local_int.lock); INIT_LIST_HEAD(&vcpu->arch.local_int.list); @@ -363,63 +365,49 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu) static int kvm_arch_vcpu_ioctl_initial_reset(struct kvm_vcpu *vcpu) { - vcpu_load(vcpu); kvm_s390_vcpu_initial_reset(vcpu); - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { - vcpu_load(vcpu); memcpy(&vcpu->arch.guest_gprs, ®s->gprs, sizeof(regs->gprs)); - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { - vcpu_load(vcpu); memcpy(®s->gprs, &vcpu->arch.guest_gprs, sizeof(regs->gprs)); - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs) { - vcpu_load(vcpu); memcpy(&vcpu->arch.guest_acrs, &sregs->acrs, sizeof(sregs->acrs)); memcpy(&vcpu->arch.sie_block->gcr, &sregs->crs, sizeof(sregs->crs)); - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs) { - vcpu_load(vcpu); memcpy(&sregs->acrs, &vcpu->arch.guest_acrs, sizeof(sregs->acrs)); memcpy(&sregs->crs, &vcpu->arch.sie_block->gcr, sizeof(sregs->crs)); - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) { - vcpu_load(vcpu); memcpy(&vcpu->arch.guest_fpregs.fprs, &fpu->fprs, sizeof(fpu->fprs)); vcpu->arch.guest_fpregs.fpc = fpu->fpc; - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) { - vcpu_load(vcpu); memcpy(&fpu->fprs, &vcpu->arch.guest_fpregs.fprs, sizeof(fpu->fprs)); fpu->fpc = vcpu->arch.guest_fpregs.fpc; - vcpu_put(vcpu); return 0; } @@ -427,14 +415,12 @@ static int kvm_arch_vcpu_ioctl_set_initial_psw(struct kvm_vcpu *vcpu, psw_t psw) { int rc = 0; - vcpu_load(vcpu); if (atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_RUNNING) rc = -EBUSY; else { vcpu->run->psw_mask = psw.mask; vcpu->run->psw_addr = psw.addr; } - vcpu_put(vcpu); return rc; } @@ -498,8 +484,6 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) int rc; sigset_t sigsaved; - vcpu_load(vcpu); - rerun_vcpu: if (vcpu->requests) if (test_and_clear_bit(KVM_REQ_MMU_RELOAD, &vcpu->requests)) @@ -568,8 +552,6 @@ rerun_vcpu: if (vcpu->sigset_active) sigprocmask(SIG_SETMASK, &sigsaved, NULL); - vcpu_put(vcpu); - vcpu->stat.exit_userspace++; return rc; } @@ -589,7 +571,7 @@ static int __guestcopy(struct kvm_vcpu *vcpu, u64 guestdest, const void *from, * KVM_S390_STORE_STATUS_NOADDR: -> 0x1200 on 64 bit * KVM_S390_STORE_STATUS_PREFIXED: -> prefix */ -int __kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr) +int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr) { const unsigned char archmode = 1; int prefix; @@ -651,45 +633,42 @@ int __kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr) return 0; } -static int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr) -{ - int rc; - - vcpu_load(vcpu); - rc = __kvm_s390_vcpu_store_status(vcpu, addr); - vcpu_put(vcpu); - return rc; -} - long kvm_arch_vcpu_ioctl(struct file *filp, unsigned int ioctl, unsigned long arg) { struct kvm_vcpu *vcpu = filp->private_data; void __user *argp = (void __user *)arg; + long r; switch (ioctl) { case KVM_S390_INTERRUPT: { struct kvm_s390_interrupt s390int; + r = -EFAULT; if (copy_from_user(&s390int, argp, sizeof(s390int))) - return -EFAULT; - return kvm_s390_inject_vcpu(vcpu, &s390int); + break; + r = kvm_s390_inject_vcpu(vcpu, &s390int); + break; } case KVM_S390_STORE_STATUS: - return kvm_s390_vcpu_store_status(vcpu, arg); + r = kvm_s390_vcpu_store_status(vcpu, arg); + break; case KVM_S390_SET_INITIAL_PSW: { psw_t psw; + r = -EFAULT; if (copy_from_user(&psw, argp, sizeof(psw))) - return -EFAULT; - return kvm_arch_vcpu_ioctl_set_initial_psw(vcpu, psw); + break; + r = kvm_arch_vcpu_ioctl_set_initial_psw(vcpu, psw); + break; } case KVM_S390_INITIAL_RESET: - return kvm_arch_vcpu_ioctl_initial_reset(vcpu); + r = kvm_arch_vcpu_ioctl_initial_reset(vcpu); + break; default: - ; + r = -EINVAL; } - return -EINVAL; + return r; } /* Section: memory related */ @@ -744,11 +723,6 @@ void kvm_arch_flush_shadow(struct kvm *kvm) { } -gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn) -{ - return gfn; -} - static int __init kvm_s390_init(void) { int ret; diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h index cfa9d17..a7b7586 100644 --- a/arch/s390/kvm/kvm-s390.h +++ b/arch/s390/kvm/kvm-s390.h @@ -92,7 +92,7 @@ int kvm_s390_handle_b2(struct kvm_vcpu *vcpu); int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu); /* implemented in kvm-s390.c */ -int __kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, +int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr); /* implemented in diag.c */ int kvm_s390_handle_diag(struct kvm_vcpu *vcpu); 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