linux/arch/powerpc/kvm
Liu Yu dd9ebf1f94 KVM: PPC: e500: Add shadow PID support
Dynamically assign host PIDs to guest PIDs, splitting each guest PID into
multiple host (shadow) PIDs based on kernel/user and MSR[IS/DS].  Use
both PID0 and PID1 so that the shadow PIDs for the right mode can be
selected, that correspond both to guest TID = zero and guest TID = guest
PID.

This allows us to significantly reduce the frequency of needing to
invalidate the entire TLB.  When the guest mode or PID changes, we just
update the host PID0/PID1.  And since the allocation of shadow PIDs is
global, multiple guests can share the TLB without conflict.

Note that KVM does not yet support the guest setting PID1 or PID2 to
a value other than zero.  This will need to be fixed for nested KVM
to work.  Until then, we enforce the requirement for guest PID1/PID2
to stay zero by failing the emulation if the guest tries to set them
to something else.

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2011-07-12 13:16:39 +03:00
..
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 KVM: PPC: booke: add sregs support 2011-05-22 08:47:53 -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: Add SR swapping code 2010-05-17 12:18:17 +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.c KVM: PPC: Magic Page Book3s support 2010-10-24 10:50:48 +02:00
book3s_64_slb.S KVM: PPC: Make SLB switching code the new segment framework 2010-05-17 12:18:38 +03:00
book3s_emulate.c KVM: PPC: Move BAT handling code into spr handler 2010-10-24 10:52:10 +02:00
book3s_exports.c KVM: PPC: Resolve real-mode handlers through function exports 2011-07-12 13:16:29 +03:00
book3s_interrupts.S KVM: PPC: Make Performance Counters work 2010-05-17 12:18:57 +03:00
book3s_mmu_hpte.c KVM: PPC: Make invalidation code more reliable 2010-10-24 10:52:06 +02:00
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_rmhandlers.S KVM: PPC: Resolve real-mode handlers through function exports 2011-07-12 13:16:29 +03:00
book3s_segment.S powerpc: Always use SPRN_SPRG_HSCRATCH0 when running in HV mode 2011-04-20 11:03:23 +10:00
book3s.c KVM: PPC: Resolve real-mode handlers through function exports 2011-07-12 13:16:29 +03:00
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: e500: Add shadow PID support 2011-07-12 13:16:39 +03:00
booke.h KVM: PPC: e500: Add shadow PID support 2011-07-12 13:16:39 +03:00
e500_emulate.c KVM: PPC: e500: Add shadow PID support 2011-07-12 13:16:39 +03:00
e500_tlb.c KVM: PPC: e500: Add shadow PID support 2011-07-12 13:16:39 +03:00
e500_tlb.h KVM: PPC: e500: Add shadow PID support 2011-07-12 13:16:39 +03:00
e500.c KVM: PPC: e500: Save/restore SPE state 2011-07-12 13:16:32 +03:00
emulate.c KVM: PPC: booke: add sregs support 2011-05-22 08:47:53 -04:00
fpu.S powerpc: Remove fpscr use from [kvm_]cvt_{fd,df} 2010-09-02 14:07:32 +10:00
Kconfig KVM: PPC: Enable Book3S_32 KVM building 2010-05-17 12:18:54 +03:00
Makefile powerpc/Makefiles: Change to new flag variables 2010-10-13 16:19:22 +11:00
powerpc.c KVM: PPC: e500: enable magic page 2011-07-12 13:16:37 +03:00
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: Move slb debugging to tracepoints 2010-10-24 10:52:07 +02:00