linux/arch/powerpc/kvm
Scott Wood 25051b5a5a KVM: PPC: Move prepare_to_enter call site into subarch code
This function should be called with interrupts disabled, to avoid
a race where an exception is delivered after we check, but the
resched kick is received before we disable interrupts (and thus doesn't
actually trigger the exit code that would recheck exceptions).

booke already does this properly in the lightweight exit case, but
not on initial entry.

For now, move the call of prepare_to_enter into subarch-specific code so
that booke can do the right thing here.  Ideally book3s would do the same
thing, but I'm having a hard time seeing where it does any interrupt
disabling of this sort (plus it has several additional call sites), so
I'm deferring the book3s fix to someone more familiar with that code.
book3s behavior should be unchanged by this patch.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-03-05 14:52:26 +02:00
..
44x_emulate.c KVM: PPC: fix exit accounting for SPRs, tlbwe, tlbsx 2011-05-22 08:47:47 -04:00
44x_tlb.c KVM: PPC: e500: Add shadow PID support 2011-07-12 13:16:39 +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 powerpc: include export.h for files using EXPORT_SYMBOL/THIS_MODULE 2011-10-31 19:30:38 -04:00
book3s_32_mmu_host.c KVM: PPC: Implement correct SID mapping on Book3s_32 2010-10-24 10:52:15 +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: Implement correct SID mapping on Book3s_32 2010-10-24 10:52:15 +02:00
book3s_64_mmu_hv.c KVM: PPC: book3s_hv: Add support for PPC970-family processors 2011-07-12 13:16:59 +03:00
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: Simplify transitions between virtual and real mode 2011-09-25 19:52:29 +03:00
book3s_64_vio_hv.c KVM: PPC: Accelerate H_PUT_TCE by implementing it in real mode 2011-07-12 13:16:56 +03:00
book3s_emulate.c KVM: PPC: Stub emulate CFAR and PURR SPRs 2011-09-25 19:52:25 +03:00
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: annotate kvm_rma_init as __init 2011-12-27 11:26:40 +02:00
book3s_hv_interrupts.S KVM: PPC: book3s_hv: Add support for PPC970-family processors 2011-07-12 13:16:59 +03:00
book3s_hv_rm_mmu.c KVM: PPC: move compute_tlbie_rb to book3s common header 2011-09-25 19:52:18 +03:00
book3s_hv_rmhandlers.S powerpc: Provide a way for KVM to indicate that NV GPR values are lost 2011-12-08 14:22:53 +11:00
book3s_hv.c KVM: PPC: Move prepare_to_enter call site into subarch code 2012-03-05 14:52:26 +02:00
book3s_interrupts.S KVM: PPC: book3s_pr: Simplify transitions between virtual and real mode 2011-09-25 19:52:29 +03:00
book3s_mmu_hpte.c KVM: PPC: Move fields between struct kvm_vcpu_arch and kvmppc_vcpu_book3s 2011-07-12 13:16:46 +03:00
book3s_paired_singles.c Merge branch 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2010-10-24 12:47:25 -07:00
book3s_pr_papr.c KVM: PPC: Add PAPR hypercall code for PR mode 2011-09-25 19:52:24 +03:00
book3s_pr.c KVM: PPC: Move prepare_to_enter call site into subarch code 2012-03-05 14:52:26 +02:00
book3s_rmhandlers.S KVM: PPC: book3s_pr: Simplify transitions between virtual and real mode 2011-09-25 19:52:29 +03:00
book3s_segment.S KVM: PPC: book3s_pr: Simplify transitions between virtual and real mode 2011-09-25 19:52:29 +03:00
book3s.c KVM: PPC: Rename deliver_interrupts to prepare_to_enter 2012-03-05 14:52:25 +02:00
booke_emulate.c KVM: PPC: Convert SRR0 and SRR1 to shared page 2010-10-24 10:50:45 +02:00
booke_interrupts.S KVM: PPC: e500: Add shadow PID support 2011-07-12 13:16:39 +03:00
booke.c KVM: PPC: Move prepare_to_enter call site into subarch code 2012-03-05 14:52:26 +02:00
booke.h KVM: PPC: e500: Add shadow PID support 2011-07-12 13:16:39 +03:00
e500_emulate.c KVM: PPC: e500: MMU API 2012-03-05 14:52:24 +02:00
e500_tlb.c KVM: PPC: E500: Support hugetlbfs 2012-03-05 14:52:24 +02:00
e500_tlb.h KVM: PPC: e500: MMU API 2012-03-05 14:52:24 +02:00
e500.c KVM: PPC: e500: Don't hardcode PIR=0 2012-03-05 14:52:24 +02:00
emulate.c KVM: PPC: booke: Do Not start decrementer when SPRN_DEC set 0 2012-03-05 14:52:25 +02:00
fpu.S powerpc: Remove fpscr use from [kvm_]cvt_{fd,df} 2010-09-02 14:07:32 +10:00
Kconfig Merge branch 'kvm-updates/3.1' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2011-07-24 09:07:03 -07:00
Makefile KVM: PPC: Assemble book3s{,_hv}_rmhandlers.S separately 2011-09-25 19:52:28 +03:00
powerpc.c KVM: PPC: Move prepare_to_enter call site into subarch code 2012-03-05 14:52:26 +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: powerpc: Fix BUILD_BUG_ON condition 2009-12-03 09:32:22 +02:00
trace.h KVM: PPC: Add support for Book3S processors in hypervisor mode 2011-07-12 13:16:54 +03:00