From: christoffer.dall@linaro.org (Christoffer Dall)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 02/11] ARM/ARM64: KVM: Add base for PSCI v0.2 emulation
Date: Sun, 23 Mar 2014 10:44:31 -0700 [thread overview]
Message-ID: <20140323174431.GE30885@cbox> (raw)
In-Reply-To: <CALrVBkvRqRWnnzgBYCLGwYbiOy-JnezgE=89nq8O3rvdv7RqFw@mail.gmail.com>
On Sat, Mar 22, 2014 at 09:54:55AM +0530, Anup Patel wrote:
> On 22 March 2014 04:57, Christoffer Dall <christoffer.dall@linaro.org> wrote:
> > On Fri, Mar 21, 2014 at 06:23:25PM +0530, Anup Patel wrote:
> >> Currently, the in-kernel PSCI emulation provides PSCI v0.1 interface to
> >> VCPUs. This patch extends current in-kernel PSCI emulation to provide
> >> PSCI v0.2 interface to VCPUs.
> >>
> >> By default, ARM/ARM64 KVM will always provide PSCI v0.1 interface for
> >> keeping the ABI backward-compatible.
> >>
> >> To select PSCI v0.2 interface for VCPUs, the user space (i.e. QEMU or
> >> KVMTOOL) will have to set KVM_ARM_VCPU_PSCI_0_2 feature when doing VCPU
> >> init using KVM_ARM_VCPU_INIT ioctl.
> >>
> >> Signed-off-by: Anup Patel <anup.patel@linaro.org>
> >> Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
> >
> > The content here can carry my Reviewed-by tag, but I think Rob's point
> > about sharing this code between KVM arm/arm64 and the PSCI code itself
> > it important, see:
> >
> > http://lists.infradead.org/pipermail/linux-arm-kernel/2014-March/241792.html
>
> My apologies, I totally missed Rob's comment.
No worries at all.
>
> My suggestion would be to have:
> arch/arm/include/uapi/asm/psci.h
> arch/arm64/include/uapi/asm/psci.h
I think the suggestion was to move all this to include/uapi/linux/psci.h
or something equivalent so also arm and arm64 can share these defines,
but maybe I read too much into it.
Rob?
next prev parent reply other threads:[~2014-03-23 17:44 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-21 12:53 [PATCH v5 00/11] In-kernel PSCI v0.2 emulation for KVM ARM/ARM64 Anup Patel
2014-03-21 12:53 ` [PATCH v5 01/11] KVM: Add capability to advertise PSCI v0.2 support Anup Patel
2014-03-21 23:22 ` Christoffer Dall
2014-03-22 4:00 ` Anup Patel
2014-03-21 12:53 ` [PATCH v5 02/11] ARM/ARM64: KVM: Add base for PSCI v0.2 emulation Anup Patel
2014-03-21 23:27 ` Christoffer Dall
2014-03-22 4:24 ` Anup Patel
2014-03-23 17:44 ` Christoffer Dall [this message]
2014-03-24 13:26 ` Rob Herring
2014-03-26 15:32 ` Ashwin Chaugule
2014-03-26 16:08 ` Rob Herring
2014-03-21 12:53 ` [PATCH v5 03/11] KVM: Documentation: Add info regarding KVM_ARM_VCPU_PSCI_0_2 feature Anup Patel
2014-03-21 12:53 ` [PATCH v5 04/11] ARM/ARM64: KVM: Make kvm_psci_call() return convention more flexible Anup Patel
2014-03-21 12:53 ` [PATCH v5 05/11] KVM: Add KVM_EXIT_SYSTEM_EVENT to user space API header Anup Patel
2014-03-21 12:53 ` [PATCH v5 06/11] ARM/ARM64: KVM: Emulate PSCI v0.2 SYSTEM_OFF and SYSTEM_RESET Anup Patel
2014-03-21 12:53 ` [PATCH v5 07/11] ARM/ARM64: KVM: Emulate PSCI v0.2 AFFINITY_INFO Anup Patel
2014-03-21 12:53 ` [PATCH v5 08/11] ARM/ARM64: KVM: Emulate PSCI v0.2 MIGRATE_INFO_TYPE and related functions Anup Patel
2014-03-21 12:53 ` [PATCH v5 09/11] ARM/ARM64: KVM: Fix CPU_ON emulation for PSCI v0.2 Anup Patel
2014-03-21 23:29 ` Christoffer Dall
2014-03-21 12:53 ` [PATCH v5 10/11] ARM/ARM64: KVM: Emulate PSCI v0.2 CPU_SUSPEND Anup Patel
2014-03-21 23:37 ` Christoffer Dall
2014-03-22 4:33 ` Anup Patel
2014-03-23 17:54 ` Christoffer Dall
2014-03-21 12:53 ` [PATCH v5 11/11] ARM/ARM64: KVM: Advertise KVM_CAP_ARM_PSCI_0_2 to user space Anup Patel
2014-03-21 23:30 ` Christoffer Dall
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