From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [kvmarm] [PATCH v2 08/10] ARM: KVM: VGIC initialisation code
Date: Tue, 2 Oct 2012 20:28:06 +0100 [thread overview]
Message-ID: <20121002192806.GC20411@mudshark.cambridge.arm.com> (raw)
In-Reply-To: <CAFEAcA8Mvh3QzVYTAhLjjbgCqd_AjJ7ji9z7NoLWnM4YUW0OQw@mail.gmail.com>
On Tue, Oct 02, 2012 at 07:31:43PM +0100, Peter Maydell wrote:
> We probably want to be passing in the "base of the cpu-internal
> peripherals", rather than "base of the GIC" specifically. For the
> A15 these are the same thing, but that's not inherent [compare the
> A9 which has more devices at fixed offsets from a configurable
> base address].
If you do that, userspace will need a way to probe the emulated CPU so
that is knows exactly which set of peripherals there are and which ones it
needs to emulate. This feels pretty nasty, given that the vgic is handled
more or less completely by the kernel-side of things.
Will
next prev parent reply other threads:[~2012-10-02 19:28 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-01 9:12 [PATCH v2 00/10] KVM/ARM vGIC support Christoffer Dall
2012-10-01 9:13 ` [PATCH v2 01/10] ARM: KVM: Keep track of currently running vcpus Christoffer Dall
2012-10-01 9:13 ` [PATCH v2 02/10] ARM: KVM: Initial VGIC infrastructure support Christoffer Dall
2012-10-01 9:13 ` [PATCH v2 03/10] ARM: KVM: Initial VGIC MMIO support code Christoffer Dall
2012-10-01 9:13 ` [PATCH v2 04/10] ARM: KVM: VGIC distributor handling Christoffer Dall
2012-10-01 9:13 ` [PATCH v2 05/10] ARM: KVM: VGIC virtual CPU interface management Christoffer Dall
2012-10-01 9:14 ` [PATCH v2 06/10] ARM: KVM: VGIC interrupt injection Christoffer Dall
2012-10-01 9:14 ` [PATCH v2 07/10] ARM: KVM: VGIC control interface world switch Christoffer Dall
2012-10-01 9:14 ` [PATCH v2 08/10] ARM: KVM: VGIC initialisation code Christoffer Dall
2012-10-02 9:24 ` Will Deacon
2012-10-02 10:25 ` Marc Zyngier
2012-10-02 17:55 ` Christoffer Dall
2012-10-02 18:31 ` [kvmarm] " Peter Maydell
2012-10-02 19:28 ` Will Deacon [this message]
2012-10-02 19:45 ` Peter Maydell
2012-10-03 10:02 ` Will Deacon
2012-10-03 15:05 ` Christoffer Dall
2012-10-01 9:14 ` [PATCH v2 09/10] ARM: KVM: vgic: reduce the number of vcpu kick Christoffer Dall
2012-10-01 9:14 ` [PATCH v2 10/10] ARM: KVM: Add VGIC configuration option Christoffer Dall
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