Merge branch 'kvm-updates/2.6.35' of git://git.kernel.org/pub/scm/virt/kvm/kvm

* 'kvm-updates/2.6.35' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (269 commits)
  KVM: x86: Add missing locking to arch specific vcpu ioctls
  KVM: PPC: Add missing vcpu_load()/vcpu_put() in vcpu ioctls
  KVM: MMU: Segregate shadow pages with different cr0.wp
  KVM: x86: Check LMA bit before set_efer
  KVM: Don't allow lmsw to clear cr0.pe
  KVM: Add cpuid.txt file
  KVM: x86: Tell the guest we'll warn it about tsc stability
  x86, paravirt: don't compute pvclock adjustments if we trust the tsc
  x86: KVM guest: Try using new kvm clock msrs
  KVM: x86: export paravirtual cpuid flags in KVM_GET_SUPPORTED_CPUID
  KVM: x86: add new KVMCLOCK cpuid feature
  KVM: x86: change msr numbers for kvmclock
  x86, paravirt: Add a global synchronization point for pvclock
  x86, paravirt: Enable pvclock flags in vcpu_time_info structure
  KVM: x86: Inject #GP with the right rip on efer writes
  KVM: SVM: Don't allow nested guest to VMMCALL into host
  KVM: x86: Fix exception reinjection forced to true
  KVM: Fix wallclock version writing race
  KVM: MMU: Don't read pdptrs with mmu spinlock held in mmu_alloc_roots
  KVM: VMX: enable VMXON check with SMX enabled (Intel TXT)
  ...
This commit is contained in:
Linus Torvalds
2010-05-21 17:16:21 -07:00
81 changed files with 7844 additions and 2829 deletions

View File

@@ -60,11 +60,7 @@
static unsigned long next_mmu_context;
static unsigned long context_map[LAST_CONTEXT / BITS_PER_LONG + 1];
/*
* Set up the context for a new address space.
*/
int init_new_context(struct task_struct *t, struct mm_struct *mm)
unsigned long __init_new_context(void)
{
unsigned long ctx = next_mmu_context;
@@ -74,11 +70,30 @@ int init_new_context(struct task_struct *t, struct mm_struct *mm)
ctx = 0;
}
next_mmu_context = (ctx + 1) & LAST_CONTEXT;
mm->context.id = ctx;
return ctx;
}
EXPORT_SYMBOL_GPL(__init_new_context);
/*
* Set up the context for a new address space.
*/
int init_new_context(struct task_struct *t, struct mm_struct *mm)
{
mm->context.id = __init_new_context();
return 0;
}
/*
* Free a context ID. Make sure to call this with preempt disabled!
*/
void __destroy_context(unsigned long ctx)
{
clear_bit(ctx, context_map);
}
EXPORT_SYMBOL_GPL(__destroy_context);
/*
* We're finished using the context for an address space.
*/
@@ -86,7 +101,7 @@ void destroy_context(struct mm_struct *mm)
{
preempt_disable();
if (mm->context.id != NO_CONTEXT) {
clear_bit(mm->context.id, context_map);
__destroy_context(mm->context.id);
mm->context.id = NO_CONTEXT;
}
preempt_enable();