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913d3ff9a3
linux/arch/powerpc/kvm
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Paul Mackerras 913d3ff9a3 KVM: PPC: Book3s HV: Don't access runnable threads list without vcore lock 
There were a few places where we were traversing the list of runnable
threads in a virtual core, i.e. vc->runnable_threads, without holding
the vcore spinlock.  This extends the places where we hold the vcore
spinlock to cover everywhere that we traverse that list.

Since we possibly need to sleep inside kvmppc_book3s_hv_page_fault,
this moves the call of it from kvmppc_handle_exit out to
kvmppc_vcpu_run, where we don't hold the vcore lock.

In kvmppc_vcore_blocked, we don't actually need to check whether
all vcpus are ceded and don't have any pending exceptions, since the
caller has already done that.  The caller (kvmppc_run_vcpu) wasn't
actually checking for pending exceptions, so we add that.

The change of if to while in kvmppc_run_vcpu is to make sure that we
never call kvmppc_remove_runnable() when the vcore state is RUNNING or
EXITING.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-10-30 10:54:55 +01:00
..
44x_emulate.c KVM: PPC: 44x: fix DCR read/write 2012-10-30 10:54:50 +01:00
44x_tlb.c KVM: do not release the error page 2012-08-06 16:04:58 +03:00
44x_tlb.h KVM: ppc: rename 44x MMU functions used in booke.c 2009-03-24 11:02:56 +02:00
44x.c KVM: PPC: 44x: Initialize PVR 2012-10-05 23:38:47 +02:00
book3s_32_mmu_host.c KVM: PPC: Book3s: PR: Add (dumb) MMU Notifier support 2012-10-05 23:38:43 +02:00
book3s_32_mmu.c KVM: PPC: Put segment registers in shared page 2010-10-24 10:52:11 +02:00
book3s_32_sr.S KVM: PPC: book3s_pr: Simplify transitions between virtual and real mode 2011-09-25 19:52:29 +03:00
book3s_64_mmu_host.c KVM: PPC: Book3s: PR: Add (dumb) MMU Notifier support 2012-10-05 23:38:43 +02:00
book3s_64_mmu_hv.c KVM: Take kvm instead of vcpu to mmu_notifier_retry 2012-10-23 13:35:43 +02:00
book3s_64_mmu.c KVM: PPC: Interpret SDR1 as HVA in PAPR mode 2011-09-25 19:52:21 +03:00
book3s_64_slb.S KVM: PPC: Book3S: PR: No isync in slbie path 2012-05-06 16:19:09 +02:00
book3s_64_vio_hv.c kvm/book3s: Make kernel emulated H_PUT_TCE available for "PR" KVM 2012-05-06 16:19:11 +02:00
book3s_64_vio.c kvm/book3s: Make kernel emulated H_PUT_TCE available for "PR" KVM 2012-05-06 16:19:11 +02:00
book3s_emulate.c KVM: PPC: Emulator: clean up SPR reads and writes 2012-05-06 16:19:13 +02:00
book3s_exports.c powerpc: various straight conversions from module.h --> export.h 2011-10-31 19:30:44 -04:00
book3s_hv_builtin.c KVM: PPC: Quieten message about allocating linear regions 2012-10-05 23:38:40 +02:00
book3s_hv_interrupts.S KVM: PPC: Work around POWER7 DABR corruption problem 2012-04-08 14:01:36 +03:00
book3s_hv_rm_mmu.c KVM: Take kvm instead of vcpu to mmu_notifier_retry 2012-10-23 13:35:43 +02:00
book3s_hv_rmhandlers.S KVM: PPC: Book3S HV: Fix some races in starting secondary threads 2012-10-30 10:54:54 +01:00
book3s_hv.c KVM: PPC: Book3s HV: Don't access runnable threads list without vcore lock 2012-10-30 10:54:55 +01:00
book3s_interrupts.S powerpc: Merge VCPU_GPR 2012-07-10 19:18:06 +10:00
book3s_mmu_hpte.c KVM: PPC: Book3s: PR: Add (dumb) MMU Notifier support 2012-10-05 23:38:43 +02:00
book3s_paired_singles.c powerpc/kvm: Fallout from system.h disintegration 2012-04-02 14:00:04 +10:00
book3s_pr_papr.c powerpc/kvm: Fix "PR" KVM implementation of H_CEDE 2012-07-11 17:36:38 +02:00
book3s_pr.c KVM: PPC: Book3S: Get/set guest FP regs using the GET/SET_ONE_REG interface 2012-10-05 23:38:54 +02:00
book3s_rmhandlers.S KVM: PPC: Book3S: PR: Rework irq disabling 2012-10-05 23:38:45 +02:00
book3s_segment.S powerpc: Move and fix MTMSR_EERI definition 2012-07-10 19:18:08 +10:00
book3s.c KVM: PPC: Book3S: Get/set guest FP regs using the GET/SET_ONE_REG interface 2012-10-05 23:38:54 +02:00
booke_emulate.c KVM: PPC: BookE: Add MCSR SPR support 2012-10-05 23:38:48 +02:00
booke_interrupts.S KVM updates for the 3.6 merge window 2012-07-24 12:01:20 -07:00
booke.c KVM: PPC: set IN_GUEST_MODE before checking requests 2012-10-05 23:38:54 +02:00
booke.h KVM: PPC: Emulator: clean up SPR reads and writes 2012-05-06 16:19:13 +02:00
bookehv_interrupts.S powerpc/kvm/bookehv: Fix build regression 2012-07-27 11:42:32 +10:00
e500_emulate.c KVM: PPC: booke: Added DECAR support 2012-05-30 11:43:11 +02:00
e500_tlb.c arch/powerpc/kvm/e500_tlb.c: fix error return code 2012-10-05 23:38:55 +02:00
e500.c KVM: PPC: e500: refactor core-specific TLB code 2012-04-08 12:51:12 +03:00
e500.h KVM: PPC: E500: Remove E500_TLB_DIRTY flag 2012-10-05 23:38:48 +02:00
e500mc.c KVM: PPC: e500mc: Fix tlbilx emulation for 64-bit guests 2012-07-11 17:39:38 +02:00
emulate.c KVM: PPC: Move mtspr/mfspr emulation into own functions 2012-10-30 10:54:51 +01:00
fpu.S powerpc: Remove fpscr use from [kvm_]cvt_{fd,df} 2010-09-02 14:07:32 +10:00
Kconfig KVM: PPC: Book3s: PR: Add (dumb) MMU Notifier support 2012-10-05 23:38:43 +02:00
Makefile kvm/book3s: Make kernel emulated H_PUT_TCE available for "PR" KVM 2012-05-06 16:19:11 +02:00
powerpc.c KVM: PPC: set IN_GUEST_MODE before checking requests 2012-10-05 23:38:54 +02:00
timing.c KVM: PPC: fix partial application of "exit timing in ticks" 2011-07-12 13:16:28 +03:00
timing.h KVM: PPC: booke: category E.HV (GS-mode) support 2012-04-08 12:51:19 +03:00
trace.h KVM: PPC: Use symbols for exit trace 2012-10-05 23:38:48 +02:00