From: David Gibson <david@gibson.dropbear.id.au>
To: Alexander Graf <agraf@suse.de>
Cc: linuxppc-dev@ozlabs.org, paulus@samba.org, kvm@vger.kernel.org,
kvm-ppc@vger.kernel.org
Subject: Re: [PATCH 07/10] KVM: PPC: Add PAPR hypercall code for PR mode
Date: Fri, 12 Aug 2011 13:35:29 +1000 [thread overview]
Message-ID: <20110812033529.GS30552@yookeroo.fritz.box> (raw)
In-Reply-To: <1312907508-14599-8-git-send-email-agraf@suse.de>
On Tue, Aug 09, 2011 at 06:31:45PM +0200, Alexander Graf wrote:
> When running a PAPR guest, we need to handle a few hypercalls in kernel space,
> most prominently the page table invalidation (to sync the shadows).
>
> So this patch adds handling for a few PAPR hypercalls to PR mode KVM. I tried
> to share the code with HV mode, but it ended up being a lot easier this way
> around, as the two differ too much in those details.
Are these strictly necessary, or just an optimization? Because you're
using the space allocated by qemu for the guest hash table, it seems
to be you could just let h_enter fall through to qemu which will put
the right thing into the guest hash table which you can then walk in
the kernel translation code.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
next prev parent reply other threads:[~2011-08-12 3:35 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-09 16:31 [PATCH 00/10] PAPR virtualization on PR KVM Alexander Graf
2011-08-09 16:31 ` [PATCH 01/10] KVM: PPC: move compute_tlbie_rb to book3s common header Alexander Graf
2011-11-08 17:08 ` [PATCH] KVM: PPC: move compute_tlbie_rb to book3s_64 " Andreas Schwab
2011-11-11 16:03 ` Alexander Graf
2011-08-09 16:31 ` [PATCH 02/10] KVM: PPC: Add papr_enabled flag Alexander Graf
2011-08-09 16:31 ` [PATCH 03/10] KVM: PPC: Check privilege level on SPRs Alexander Graf
2011-08-09 16:31 ` [PATCH 04/10] KVM: PPC: Interpret SDR1 as HVA in PAPR mode Alexander Graf
2011-08-09 16:31 ` [PATCH 05/10] KVM: PPC: Read out syscall instruction on trap Alexander Graf
2011-08-09 16:31 ` [PATCH 06/10] KVM: PPC: Add support for explicit HIOR setting Alexander Graf
2011-08-09 16:31 ` [PATCH 07/10] KVM: PPC: Add PAPR hypercall code for PR mode Alexander Graf
2011-08-09 16:40 ` Avi Kivity
2011-08-09 16:46 ` Alexander Graf
2011-08-09 16:49 ` Avi Kivity
2011-08-09 16:51 ` Alexander Graf
2011-08-09 17:01 ` Avi Kivity
2011-08-09 22:02 ` Benjamin Herrenschmidt
2011-08-12 3:35 ` David Gibson [this message]
2011-08-12 5:38 ` Alexander Graf
2011-08-12 7:43 ` David Gibson
2011-08-12 8:09 ` Alexander Graf
2011-08-09 16:31 ` [PATCH 08/10] KVM: PPC: Stub emulate CFAR and PURR SPRs Alexander Graf
2011-08-09 16:31 ` [PATCH 09/10] KVM: PPC: Support SC1 hypercalls for PAPR in PR mode Alexander Graf
2011-08-12 3:33 ` David Gibson
2011-08-12 5:35 ` Alexander Graf
2011-08-12 7:43 ` David Gibson
2011-08-12 8:07 ` Alexander Graf
2011-11-08 17:17 ` [PATCH] KVM: PPC: protect use of kvmppc_h_pr Andreas Schwab
2011-11-11 16:03 ` Alexander Graf
2011-08-09 16:31 ` [PATCH 10/10] KVM: PPC: Enable the PAPR CAP for Book3S Alexander Graf
2011-08-10 4:42 ` Paul Mackerras
2011-08-10 7:59 ` Alexander Graf
2011-08-10 12:26 ` Paul Mackerras
2011-08-10 12:29 ` Alexander Graf
2011-08-09 16:42 ` [PATCH 00/10] PAPR virtualization on PR KVM Avi Kivity
2011-08-09 16:49 ` Alexander Graf
2011-08-10 12:31 ` [PATCH 11/10] KVM: PPC: Add sanity checking to vcpu_run Alexander Graf
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