From: Avi Kivity <avi@redhat.com>
To: Alexander Graf <agraf@suse.de>
Cc: kvm-ppc@vger.kernel.org, kvm list <kvm@vger.kernel.org>,
Marcelo Tosatti <mtosatti@redhat.com>,
Scott Wood <scottwood@freescale.com>
Subject: Re: [PATCH 19/50] KVM: PPC: Paravirtualize SPRG4-7, ESR, PIR, MASn
Date: Sun, 08 Jan 2012 13:20:14 +0000 [thread overview]
Message-ID: <4F09980E.5060201@redhat.com> (raw)
In-Reply-To: <1325639448-9494-20-git-send-email-agraf@suse.de>
On 01/04/2012 03:10 AM, Alexander Graf wrote:
> From: Scott Wood <scottwood@freescale.com>
>
> This allows additional registers to be accessed by the guest
> in PR-mode KVM without trapping.
>
> SPRG4-7 are readable from userspace. On booke, KVM will sync
> these registers when it enters the guest, so that accesses from
> guest userspace will work. The guest kernel, OTOH, must consistently
> use either the real registers or the shared area between exits. This
> also applies to the already-paravirted SPRG3.
>
> On non-booke, it's not clear to what extent SPRG4-7 are supported
> (they're not architected for book3s, but exist on at least some classic
> chips). They are copied in the get/set regs ioctls, but I do not see any
> non-booke emulation. I also do not see any syncing with real registers
> (in PR-mode) including the user-readable SPRG3. This patch should not
> make that situation any worse.
>
> Signed-off-by: Scott Wood <scottwood@freescale.com>
> Signed-off-by: Alexander Graf <agraf@suse.de>
> ---
> arch/powerpc/include/asm/kvm_e500.h | 8 --
> arch/powerpc/include/asm/kvm_host.h | 6 -
> arch/powerpc/include/asm/kvm_para.h | 31 +++++-
> arch/powerpc/kernel/asm-offsets.c | 15 ++-
> arch/powerpc/kernel/kvm.c | 204 +++++++++++++++++++++++++++++------
> arch/powerpc/kvm/book3s.c | 16 ++--
> arch/powerpc/kvm/booke.c | 23 ++--
> arch/powerpc/kvm/booke_emulate.c | 12 +-
> arch/powerpc/kvm/booke_interrupts.S | 18 ++-
> arch/powerpc/kvm/e500.c | 24 ++--
> arch/powerpc/kvm/e500_emulate.c | 38 ++++---
> arch/powerpc/kvm/e500_tlb.c | 83 ++++++++-------
> arch/powerpc/kvm/e500_tlb.h | 25 ++---
> arch/powerpc/kvm/emulate.c | 3 +-
> arch/powerpc/kvm/powerpc.c | 2 +-
> 15 files changed, 339 insertions(+), 169 deletions(-)
>
Documentation?
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2012-01-08 13:20 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-04 0:58 [PULL 00/50] ppc patch queue 2012-01-04 Alexander Graf
2012-01-04 0:58 ` [PATCH 02/50] KVM: PPC: e500: Eliminate preempt_disable in local_sid_destroy_all Alexander Graf
2012-01-04 0:58 ` [PATCH 13/50] KVM: PPC: booke: check for signals in kvmppc_vcpu_run Alexander Graf
2012-01-08 13:18 ` Avi Kivity
2012-01-08 15:11 ` Alexander Graf
2012-01-08 15:22 ` Avi Kivity
2012-01-08 15:37 ` Alexander Graf
2012-01-08 16:13 ` Avi Kivity
2012-01-08 16:21 ` Alexander Graf
2012-01-08 16:26 ` Avi Kivity
2012-01-08 16:41 ` Alexander Graf
2012-01-08 16:45 ` Avi Kivity
2012-01-08 16:54 ` Alexander Graf
2012-01-04 0:58 ` [PATCH 16/50] KVM: PPC: booke: Check for MSR[WE] in prepare_to_enter Alexander Graf
2012-01-04 0:58 ` [PATCH 15/50] KVM: PPC: Move prepare_to_enter call site into subarch code Alexander Graf
2012-01-04 0:59 ` [PATCH 10/50] PPC: Fix race in mtmsr paravirt implementation Alexander Graf
2012-01-04 0:59 ` [PATCH 39/50] KVM: PPC: Implement MMIO emulation support for Book3S HV guests Alexander Graf
2012-01-04 0:59 ` [PATCH 50/50] KVM: PPC: Use the vcpu kmem_cache when allocating new VCPUs Alexander Graf
2012-01-04 0:59 ` [PATCH 49/50] KVM: PPC: booke: Add booke206 TLB trace Alexander Graf
2012-01-04 0:59 ` [PATCH 47/50] KVM: PPC: Book3S HV: Use the hardware referenced bit for kvm_age_hva Alexander Graf
2012-01-04 0:59 ` [PATCH 46/50] KVM: PPC: Book3s HV: Maintain separate guest and host views of R and C bits Alexander Graf
2012-01-04 0:59 ` [PATCH 42/50] KVM: PPC: Allow for read-only pages backing a Book3S HV guest Alexander Graf
2012-01-04 0:59 ` [PATCH 45/50] KVM: PPC: Book3S HV: Keep HPTE locked when invalidating Alexander Graf
2012-01-04 0:59 ` [PATCH 40/50] KVM: PPC: Implement MMU notifiers for Book3S HV guests Alexander Graf
2012-01-08 13:29 ` [PATCH 40/50] KVM: PPC: Implement MMU notifiers for Book3S HV Avi Kivity
2012-01-08 15:15 ` [PATCH 40/50] KVM: PPC: Implement MMU notifiers for Book3S HV guests Alexander Graf
2012-01-08 15:24 ` [PATCH 40/50] KVM: PPC: Implement MMU notifiers for Book3S HV Avi Kivity
2012-01-08 15:41 ` [PATCH 40/50] KVM: PPC: Implement MMU notifiers for Book3S HV guests Alexander Graf
2012-01-04 0:59 ` [PATCH 44/50] KVM: PPC: Add KVM_CAP_NR_VCPUS and KVM_CAP_MAX_VCPUS Alexander Graf
2012-01-04 0:59 ` [PATCH 43/50] KVM: PPC: Fix vcpu_create dereference before validity check Alexander Graf
2012-01-04 0:59 ` [PATCH 48/50] KVM: PPC: Book3s HV: Implement get_dirty_log using hardware changed bit Alexander Graf
2012-01-04 0:59 ` [PATCH 38/50] KVM: PPC: Maintain a doubly-linked list of guest HPTEs for each gfn Alexander Graf
2012-01-04 0:59 ` [PATCH 36/50] KVM: PPC: Allow use of small pages to back Book3S HV guests Alexander Graf
2012-01-04 0:59 ` [PATCH 34/50] KVM: PPC: Make the H_ENTER hcall more reliable Alexander Graf
2012-01-04 0:59 ` [PATCH 31/50] KVM: PPC: Keep a record of HV guest view of hashed page table entries Alexander Graf
2012-01-04 0:59 ` [PATCH 33/50] KVM: PPC: Add an interface for pinning guest pages in Book3s HV guests Alexander Graf
2012-01-04 0:59 ` [PATCH 32/50] KVM: PPC: Keep page physical addresses in per-slot arrays Alexander Graf
2012-01-04 0:59 ` [PATCH 30/50] KVM: PPC: Move kvm_vcpu_ioctl_[gs]et_one_reg down to platform-specific code Alexander Graf
2012-01-04 1:09 ` [PATCH 01/50] KVM: PPC: e500: don't translate gfn to pfn with preemption disabled Alexander Graf
2012-01-04 1:10 ` [PATCH 03/50] KVM: PPC: e500: clear up confusion between host and guest entries Alexander Graf
2012-01-04 1:10 ` [PATCH 04/50] KVM: PPC: e500: MMU API Alexander Graf
2012-01-08 13:13 ` Avi Kivity
2012-01-08 14:52 ` Alexander Graf
2012-01-08 14:55 ` Avi Kivity
2012-01-08 15:16 ` Alexander Graf
2012-01-08 15:27 ` Avi Kivity
2012-01-04 1:10 ` [PATCH 05/50] KVM: PPC: e500: tlbsx: fix tlb0 esel Alexander Graf
2012-01-04 1:10 ` [PATCH 06/50] KVM: PPC: e500: Don't hardcode PIR=0 Alexander Graf
2012-01-08 13:14 ` Avi Kivity
2012-01-08 14:53 ` Alexander Graf
2012-01-08 14:56 ` Avi Kivity
2012-01-04 1:10 ` [PATCH 07/50] KVM: PPC: Add generic single register ioctls Alexander Graf
2012-01-04 20:08 ` Scott Wood
2012-01-05 2:32 ` Alexander Graf
2012-01-05 4:07 ` Alexander Graf
2012-01-05 20:53 ` Scott Wood
2012-01-08 12:38 ` Avi Kivity
2012-01-04 1:10 ` [PATCH 08/50] KVM: PPC: Add support for explicit HIOR setting Alexander Graf
2012-01-04 20:12 ` Scott Wood
2012-01-05 2:36 ` Alexander Graf
2012-01-05 17:16 ` Scott Wood
2012-01-06 2:35 ` Alexander Graf
2012-01-06 21:12 ` Scott Wood
2012-01-07 1:14 ` Alexander Graf
2012-01-09 19:52 ` Scott Wood
2012-01-04 1:10 ` [PATCH 09/50] KVM: PPC: E500: Support hugetlbfs Alexander Graf
2012-01-08 13:16 ` Avi Kivity
2012-01-04 1:10 ` [PATCH 11/50] Fix DEC truncation for greater than 0xffff_ffff/1000 Alexander Graf
2012-01-04 1:10 ` [PATCH 12/50] KVM: booke: Do Not start decrementer when SPRN_DEC set 0 Alexander Graf
2012-01-04 1:10 ` [PATCH 14/50] KVM: PPC: Rename deliver_interrupts to prepare_to_enter Alexander Graf
2012-01-04 1:10 ` [PATCH 17/50] KVM: PPC: booke: Fix int_pending calculation for MSR[EE] paravirt Alexander Graf
2012-01-04 1:10 ` [PATCH 18/50] KVM: PPC: booke: Paravirtualize wrtee Alexander Graf
2012-01-04 1:10 ` [PATCH 19/50] KVM: PPC: Paravirtualize SPRG4-7, ESR, PIR, MASn Alexander Graf
2012-01-08 13:20 ` Avi Kivity [this message]
2012-01-04 1:10 ` [PATCH 20/50] KVM: PPC: booke: Improve timer register emulation Alexander Graf
2012-01-04 1:10 ` [PATCH 21/50] KVM: PPC: Book3s: PR: Disable preemption in vcpu_run Alexander Graf
2012-01-04 1:10 ` [PATCH 22/50] KVM: PPC: Book3s: PR: No irq_disable " Alexander Graf
2012-01-04 1:10 ` [PATCH 23/50] KVM: PPC: Use get/set for to_svcpu to help preemption Alexander Graf
2012-01-04 1:10 ` [PATCH 24/50] KVM: PPC: align vcpu_kick with x86 Alexander Graf
2012-01-08 13:24 ` Avi Kivity
2012-01-08 15:14 ` Alexander Graf
2012-01-08 15:32 ` Christoffer Dall
2012-01-04 1:10 ` [PATCH 25/50] KVM: PPC: Book3S: PR: Fix signal check race Alexander Graf
2012-01-04 1:10 ` [PATCH 26/50] KVM: PPC: e500: Fix TLBnCFG in KVM_CONFIG_TLB Alexander Graf
2012-01-04 1:10 ` [PATCH 27/50] KVM: PPC: e500: use hardware hint when loading TLB0 entries Alexander Graf
2012-01-04 1:10 ` [PATCH 28/50] KVM: PPC: Avoid patching paravirt template code Alexander Graf
2012-01-04 1:10 ` [PATCH 29/50] KVM: PPC: Make wakeups work again for Book3S HV guests Alexander Graf
2012-01-04 1:10 ` [PATCH 35/50] KVM: PPC: Only get pages when actually needed, not in prepare_memory_region() Alexander Graf
2012-01-04 1:10 ` [PATCH 37/50] KVM: PPC: Allow I/O mappings in memory slots Alexander Graf
2012-01-04 1:10 ` [PATCH 41/50] KVM: Add barriers to allow mmu_notifier_retry to be used locklessly Alexander Graf
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