Merge branch 'kvm-updates/2.6.33' of git://git.kernel.org/pub/scm/virt/kvm/kvm

* 'kvm-updates/2.6.33' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (84 commits)
  KVM: VMX: Fix comparison of guest efer with stale host value
  KVM: s390: Fix prefix register checking in arch/s390/kvm/sigp.c
  KVM: Drop user return notifier when disabling virtualization on a cpu
  KVM: VMX: Disable unrestricted guest when EPT disabled
  KVM: x86 emulator: limit instructions to 15 bytes
  KVM: s390: Make psw available on all exits, not just a subset
  KVM: x86: Add KVM_GET/SET_VCPU_EVENTS
  KVM: VMX: Report unexpected simultaneous exceptions as internal errors
  KVM: Allow internal errors reported to userspace to carry extra data
  KVM: Reorder IOCTLs in main kvm.h
  KVM: x86: Polish exception injection via KVM_SET_GUEST_DEBUG
  KVM: only clear irq_source_id if irqchip is present
  KVM: x86: disallow KVM_{SET,GET}_LAPIC without allocated in-kernel lapic
  KVM: x86: disallow multiple KVM_CREATE_IRQCHIP
  KVM: VMX: Remove vmx->msr_offset_efer
  KVM: MMU: update invlpg handler comment
  KVM: VMX: move CR3/PDPTR update to vmx_set_cr3
  KVM: remove duplicated task_switch check
  KVM: powerpc: Fix BUILD_BUG_ON condition
  KVM: VMX: Use shared msr infrastructure
  ...

Trivial conflicts due to new Kconfig options in arch/Kconfig and kernel/Makefile

3 files changed, 25 insertions, 14 deletions

diff --git a/arch/s390/include/asm/kvm.h b/arch/s390/include/asm/kvm.h
index 3dfcaeb5d7f4..82b32a100c7d 100644
--- a/arch/s390/include/asm/kvm.h
+++ b/arch/s390/include/asm/kvm.h
@@ -1,6 +1,5 @@
 #ifndef __LINUX_KVM_S390_H
 #define __LINUX_KVM_S390_H
-
 /*
  * asm-s390/kvm.h - KVM s390 specific structures and definitions
  *
@@ -15,6 +14,8 @@
  */
 #include <linux/types.h>
 
+#define __KVM_S390
+
 /* for KVM_GET_REGS and KVM_SET_REGS */
 struct kvm_regs {
         /* general purpose regs for s390 */
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 07ced89740d7..f8bcaefd7d34 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -74,9 +74,10 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
 static unsigned long long *facilities;
 
 /* Section: not file related */
-void kvm_arch_hardware_enable(void *garbage)
+int kvm_arch_hardware_enable(void *garbage)
 {
         /* every s390 is virtualization enabled ;-) */
+        return 0;
 }
 
 void kvm_arch_hardware_disable(void *garbage)
@@ -116,10 +117,16 @@ long kvm_arch_dev_ioctl(struct file *filp,
 
 int kvm_dev_ioctl_check_extension(long ext)
 {
+        int r;
+
         switch (ext) {
+        case KVM_CAP_S390_PSW:
+                r = 1;
+                break;
         default:
-                return 0;
+                r = 0;
         }
+        return r;
 }
 
 /* Section: vm related */
@@ -150,7 +157,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
                 break;
         }
         default:
-                r = -EINVAL;
+                r = -ENOTTY;
         }
 
         return r;
@@ -419,8 +426,10 @@ static int kvm_arch_vcpu_ioctl_set_initial_psw(struct kvm_vcpu *vcpu, psw_t psw)
         vcpu_load(vcpu);
         if (atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_RUNNING)
                 rc = -EBUSY;
-        else
-                vcpu->arch.sie_block->gpsw = psw;
+        else {
+                vcpu->run->psw_mask = psw.mask;
+                vcpu->run->psw_addr = psw.addr;
+        }
         vcpu_put(vcpu);
         return rc;
 }
@@ -508,9 +517,6 @@ rerun_vcpu:
 
         switch (kvm_run->exit_reason) {
         case KVM_EXIT_S390_SIEIC:
-                vcpu->arch.sie_block->gpsw.mask = kvm_run->s390_sieic.mask;
-                vcpu->arch.sie_block->gpsw.addr = kvm_run->s390_sieic.addr;
-                break;
         case KVM_EXIT_UNKNOWN:
         case KVM_EXIT_INTR:
         case KVM_EXIT_S390_RESET:
@@ -519,6 +525,9 @@ rerun_vcpu:
                 BUG();
         }
 
+        vcpu->arch.sie_block->gpsw.mask = kvm_run->psw_mask;
+        vcpu->arch.sie_block->gpsw.addr = kvm_run->psw_addr;
+
         might_fault();
 
         do {
@@ -538,8 +547,6 @@ rerun_vcpu:
                 /* intercept cannot be handled in-kernel, prepare kvm-run */
                 kvm_run->exit_reason         = KVM_EXIT_S390_SIEIC;
                 kvm_run->s390_sieic.icptcode = vcpu->arch.sie_block->icptcode;
-                kvm_run->s390_sieic.mask     = vcpu->arch.sie_block->gpsw.mask;
-                kvm_run->s390_sieic.addr     = vcpu->arch.sie_block->gpsw.addr;
                 kvm_run->s390_sieic.ipa      = vcpu->arch.sie_block->ipa;
                 kvm_run->s390_sieic.ipb      = vcpu->arch.sie_block->ipb;
                 rc = 0;
@@ -551,6 +558,9 @@ rerun_vcpu:
                 rc = 0;
         }
 
+        kvm_run->psw_mask     = vcpu->arch.sie_block->gpsw.mask;
+        kvm_run->psw_addr     = vcpu->arch.sie_block->gpsw.addr;
+
         if (vcpu->sigset_active)
                 sigprocmask(SIG_SETMASK, &sigsaved, NULL);
 
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 40c8c6748cfe..15ee1111de58 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -188,9 +188,9 @@ static int __sigp_set_prefix(struct kvm_vcpu *vcpu, u16 cpu_addr, u32 address,
 
         /* make sure that the new value is valid memory */
         address = address & 0x7fffe000u;
-        if ((copy_from_guest(vcpu, &tmp,
-                (u64) (address + vcpu->arch.sie_block->gmsor) , 1)) ||
-           (copy_from_guest(vcpu, &tmp, (u64) (address +
+        if ((copy_from_user(&tmp, (void __user *)
+                (address + vcpu->arch.sie_block->gmsor) , 1)) ||
+           (copy_from_user(&tmp, (void __user *)(address +
                         vcpu->arch.sie_block->gmsor + PAGE_SIZE), 1))) {
                 *reg |= SIGP_STAT_INVALID_PARAMETER;
                 return 1; /* invalid parameter */