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c9029c341d
linux/arch/powerpc/kvm
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Paul Mackerras c9029c341d KVM: PPC: Book3S PR: Use 64k host pages where possible 
Currently, PR KVM uses 4k pages for the host-side mappings of guest
memory, regardless of the host page size.  When the host page size is
64kB, we might as well use 64k host page mappings for guest mappings
of 64kB and larger pages and for guest real-mode mappings.  However,
the magic page has to remain a 4k page.

To implement this, we first add another flag bit to the guest VSID
values we use, to indicate that this segment is one where host pages
should be mapped using 64k pages.  For segments with this bit set
we set the bits in the shadow SLB entry to indicate a 64k base page
size.  When faulting in host HPTEs for this segment, we make them
64k HPTEs instead of 4k.  We record the pagesize in struct hpte_cache
for use when invalidating the HPTE.

For now we restrict the segment containing the magic page (if any) to
4k pages.  It should be possible to lift this restriction in future
by ensuring that the magic 4k page is appropriately positioned within
a host 64k page.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-17 14:45:03 +02:00
..
44x_emulate.c KVM: PPC: 44x: fix DCR read/write 2012-10-30 10:54:50 +01:00
44x_tlb.c kvm/ppc/booke: Hold srcu lock when calling gfn functions 2013-06-11 11:10:59 +03:00
44x_tlb.h
44x.c KVM: PPC: Book3E: Refactor ONE_REG ioctl implementation 2013-04-26 20:27:05 +02:00
book3s_32_mmu_host.c KVM: do not treat noslot pfn as a error pfn 2012-10-29 20:31:04 -02:00
book3s_32_mmu.c KVM: PPC: Book3S PR: Use 64k host pages where possible 2013-10-17 14:45:03 +02:00
book3s_32_sr.S
book3s_64_mmu_host.c KVM: PPC: Book3S PR: Use 64k host pages where possible 2013-10-17 14:45:03 +02:00
book3s_64_mmu_hv.c KVM: PPC: Book3S HV: Store LPCR value for each virtual core 2013-10-17 14:45:01 +02:00
book3s_64_mmu.c KVM: PPC: Book3S PR: Use 64k host pages where possible 2013-10-17 14:45:03 +02:00
book3s_64_slb.S powerpc: Fix little endian lppaca, slb_shadow and dtl_entry 2013-08-14 15:33:35 +10:00
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 ppc: kvm: use anon_inode_getfd() with O_CLOEXEC flag 2013-08-26 13:19:56 +03:00
book3s_emulate.c KVM: PPC: Book3S PR: Keep volatile reg values in vcpu rather than shadow_vcpu 2013-10-17 14:45:03 +02:00
book3s_exports.c KVM: PPC: Book3S PR: Fix VSX handling 2012-12-06 01:34:02 +01:00
book3s_hv_builtin.c powerpc/kvm: Contiguous memory allocator based RMA allocation 2013-07-08 16:20:20 +02:00
book3s_hv_cma.c powerpc/kvm: Use 256K chunk to track both RMA and hash page table allocation. 2013-07-08 16:21:13 +02:00
book3s_hv_cma.h powerpc/kvm: Use 256K chunk to track both RMA and hash page table allocation. 2013-07-08 16:21:13 +02:00
book3s_hv_interrupts.S powerpc: Fix build errors with UP configs in HV-style KVM 2013-04-18 13:03:57 +10:00
book3s_hv_ras.c KVM: PPC: Book3S HV: Fix compilation without CONFIG_PPC_POWERNV 2013-01-06 14:02:00 +01:00
book3s_hv_rm_mmu.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-09-06 10:49:42 -07:00
book3s_hv_rm_xics.c KVM: PPC: Book3S HV: Add support for real mode ICP in XICS emulation 2013-04-26 20:27:32 +02:00
book3s_hv_rmhandlers.S KVM: PPC: Book3S HV: Support POWER6 compatibility mode on POWER7 2013-10-17 14:45:02 +02:00
book3s_hv.c KVM: PPC: Book3S HV: Don't crash host on unknown guest interrupt 2013-10-17 14:45:02 +02:00
book3s_interrupts.S KVM: PPC: Book3S PR: Keep volatile reg values in vcpu rather than shadow_vcpu 2013-10-17 14:45:03 +02:00
book3s_mmu_hpte.c KVM: PPC: Book3S PR: Allow guest to use 64k pages 2013-10-17 14:45:03 +02:00
book3s_paired_singles.c
book3s_pr_papr.c powerpc/kvm/book3s: Add support for H_IPOLL and H_XIRR_X in XICS emulation 2013-06-01 08:29:27 +10:00
book3s_pr.c KVM: PPC: Book3S PR: Use 64k host pages where possible 2013-10-17 14:45:03 +02:00
book3s_rmhandlers.S KVM: PPC: Book3S PR: Keep volatile reg values in vcpu rather than shadow_vcpu 2013-10-17 14:45:03 +02:00
book3s_rtas.c KVM: PPC: Book3S: Add support for ibm,int-on/off RTAS calls 2013-04-26 20:27:33 +02:00
book3s_segment.S powerpc: Move and fix MTMSR_EERI definition 2012-07-10 19:18:08 +10:00
book3s_xics.c KVM: PPC: Book3S: Fix compile error in XICS emulation 2013-08-28 16:28:47 +02:00
book3s_xics.h KVM: PPC: Book3S: Add API for in-kernel XICS emulation 2013-05-02 15:28:36 +02:00
book3s.c KVM: PPC: Book3S: Add GET/SET_ONE_REG interface for VRSAVE 2013-10-17 14:44:59 +02:00
booke_emulate.c KVM: PPC: BookE: Emulate mfspr on EPR 2013-01-10 13:42:30 +01:00
booke_interrupts.S KVM: PPC: booke: Added debug handler 2013-03-22 01:21:09 +01:00
booke.c KVM: PPC: BookE: Add GET/SET_ONE_REG interface for VRSAVE 2013-10-17 14:45:01 +02:00
booke.h KVM: PPC: booke: Allow multiple exception types 2013-02-13 12:56:40 +01:00
bookehv_interrupts.S KVM: PPC: bookehv64: Add support for interrupt handling 2012-12-06 01:34:11 +01:00
e500_emulate.c KVM: PPC: e500: Add support for EPTCFG register 2013-04-26 20:27:08 +02:00
e500_mmu_host.c kvm/ppc/e500: eliminate tlb_refs 2013-04-11 15:53:43 +02:00
e500_mmu_host.h KVM: PPC: E500: Make clear_tlb_refs and clear_tlb1_bitmap static 2013-01-24 19:23:33 +01:00
e500_mmu.c kvm/ppc/booke: Hold srcu lock when calling gfn functions 2013-06-11 11:10:59 +03:00
e500.c KVM: PPC: e500: Expose MMU registers via ONE_REG 2013-04-26 20:27:06 +02:00
e500.h KVM: PPC: e500: Add support for TLBnPS registers 2013-04-26 20:27:07 +02:00
e500mc.c kvm/ppc/booke64: Disable e6500 support 2013-06-11 11:10:56 +03:00
emulate.c powerpc: Move opcode definitions from kvm/emulate.c to asm/ppc-opcode.h 2013-07-30 15:50:07 -05:00
fpu.S
irq.h KVM: PPC: Book3S: Add API for in-kernel XICS emulation 2013-05-02 15:28:36 +02:00
Kconfig powerpc/kvm: Contiguous memory allocator based hash page table allocation 2013-07-08 16:19:58 +02:00
Makefile powerpc/kvm: Contiguous memory allocator based hash page table allocation 2013-07-08 16:19:58 +02:00
mpic.c kvm/ppc/mpic: fix missing unlock in set_base_addr() 2013-05-02 15:28:35 +02:00
powerpc.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-09-05 08:50:26 -07:00
timing.c
timing.h
trace.h KVM: PPC: Book3S PR: Keep volatile reg values in vcpu rather than shadow_vcpu 2013-10-17 14:45:03 +02:00