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Merge tag 'signed-for-3.13' of git://github.com/agraf/linux-2.6 into kvm-master

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Patch queue for 3.13 - 2013-12-18

This fixes some grave issues we've only found after 3.13-rc1:

  - Make the modularized HV/PR book3s kvm work well as modules
  - Fix some race conditions
  - Fix compilation with certain compilers (booke)
  - Fix THP for book3s_hv
  - Fix preemption for book3s_pr

Alexander Graf (4):
      KVM: PPC: Book3S: PR: Don't clobber our exit handler id
      KVM: PPC: Book3S: PR: Export kvmppc_copy_to|from_svcpu
      KVM: PPC: Book3S: PR: Make svcpu -> vcpu store preempt savvy
      KVM: PPC: Book3S: PR: Enable interrupts earlier

Aneesh Kumar K.V (1):
      powerpc: book3s: kvm: Don't abuse host r2 in exit path

Paul Mackerras (5):
      KVM: PPC: Book3S HV: Fix physical address calculations
      KVM: PPC: Book3S HV: Refine barriers in guest entry/exit
      KVM: PPC: Book3S HV: Make tbacct_lock irq-safe
      KVM: PPC: Book3S HV: Take SRCU read lock around kvm_read_guest() call
      KVM: PPC: Book3S HV: Don't drop low-order page address bits

Scott Wood (1):
      powerpc/kvm/booke: Fix build break due to stack frame size warning

pingfan liu (1):
      powerpc: kvm: fix rare but potential deadlock scene
This commit is contained in:
Paolo Bonzini
2013-12-20 19:13:58 +01:00
parent 319e2e3f63 df9059bb64
commit 5e6d26cf48
13 changed files with 112 additions and 62 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
arch/powerpc/kernel/process.c
View File

@@ -339,7 +339,7 @@ static void set_debug_reg_defaults(struct thread_struct *thread)
#endif
}
static void prime_debug_regs(struct thread_struct *thread)
static void prime_debug_regs(struct debug_reg *debug)
{
/*
* We could have inherited MSR_DE from userspace, since
@@ -348,22 +348,22 @@ static void prime_debug_regs(struct thread_struct *thread)
*/
mtmsr(mfmsr() & ~MSR_DE);
mtspr(SPRN_IAC1, thread->debug.iac1);
mtspr(SPRN_IAC2, thread->debug.iac2);
mtspr(SPRN_IAC1, debug->iac1);
mtspr(SPRN_IAC2, debug->iac2);
#if CONFIG_PPC_ADV_DEBUG_IACS > 2
mtspr(SPRN_IAC3, thread->debug.iac3);
mtspr(SPRN_IAC4, thread->debug.iac4);
mtspr(SPRN_IAC3, debug->iac3);
mtspr(SPRN_IAC4, debug->iac4);
#endif
mtspr(SPRN_DAC1, thread->debug.dac1);
mtspr(SPRN_DAC2, thread->debug.dac2);
mtspr(SPRN_DAC1, debug->dac1);
mtspr(SPRN_DAC2, debug->dac2);
#if CONFIG_PPC_ADV_DEBUG_DVCS > 0
mtspr(SPRN_DVC1, thread->debug.dvc1);
mtspr(SPRN_DVC2, thread->debug.dvc2);
mtspr(SPRN_DVC1, debug->dvc1);
mtspr(SPRN_DVC2, debug->dvc2);
#endif
mtspr(SPRN_DBCR0, thread->debug.dbcr0);
mtspr(SPRN_DBCR1, thread->debug.dbcr1);
mtspr(SPRN_DBCR0, debug->dbcr0);
mtspr(SPRN_DBCR1, debug->dbcr1);
#ifdef CONFIG_BOOKE
mtspr(SPRN_DBCR2, thread->debug.dbcr2);
mtspr(SPRN_DBCR2, debug->dbcr2);
#endif
}
/*
@@ -371,11 +371,11 @@ static void prime_debug_regs(struct thread_struct *thread)
* debug registers, set the debug registers from the values
* stored in the new thread.
*/
void switch_booke_debug_regs(struct thread_struct *new_thread)
void switch_booke_debug_regs(struct debug_reg *new_debug)
{
if ((current->thread.debug.dbcr0 & DBCR0_IDM)
|| (new_thread->debug.dbcr0 & DBCR0_IDM))
prime_debug_regs(new_thread);
|| (new_debug->dbcr0 & DBCR0_IDM))
prime_debug_regs(new_debug);
}
EXPORT_SYMBOL_GPL(switch_booke_debug_regs);
#else /* !CONFIG_PPC_ADV_DEBUG_REGS */
@@ -683,7 +683,7 @@ struct task_struct *__switch_to(struct task_struct *prev,
#endif /* CONFIG_SMP */
#ifdef CONFIG_PPC_ADV_DEBUG_REGS
switch_booke_debug_regs(&new->thread);
switch_booke_debug_regs(&new->thread.debug);
#else
/*
* For PPC_BOOK3S_64, we use the hw-breakpoint interfaces that would