From: marc.zyngier@arm.com (Marc Zyngier)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] KVM: arm/arm64: Add VGICv3 save/restore API documentation
Date: Fri, 09 Oct 2015 09:06:42 +0100 [thread overview]
Message-ID: <56177592.2080702@arm.com> (raw)
In-Reply-To: <00e601d10264$61cdafb0$25690f10$@samsung.com>
On 09/10/15 08:30, Pavel Fedin wrote:
> Hello!
>
>> + KVM_DEV_ARM_VGIC_CPU_SYSREGS
>> + Attributes:
>> + The attr field of kvm_device_attr encodes two values:
>> + bits: | 63 .... 32 | 31 .... 16 | 15 .... 0 |
>> + values: | mpidr | RES | instr |
>
> One small clarification: do you really want it to be different from KVM_DEV_ARM_VGIC_GRP_CPU_REGS?
One is memory mapped, the other one is a system register. One is
addressed by a linear index, the other one by affinity.
How do you reconcile the two? What's the point of trying to shoehorn a
different concept into the existing API?
M.
--
Jazz is not dead. It just smells funny...
next prev parent reply other threads:[~2015-10-09 8:06 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-07 19:50 [PATCH] KVM: arm/arm64: Add VGICv3 save/restore API documentation Christoffer Dall
2015-10-08 7:17 ` Pavel Fedin
2015-10-08 8:23 ` Christoffer Dall
2015-10-08 9:10 ` Pavel Fedin
2015-10-08 9:28 ` Christoffer Dall
2015-10-08 10:14 ` Marc Zyngier
2015-10-08 12:28 ` Pavel Fedin
2015-10-08 12:36 ` Christoffer Dall
2015-10-08 12:45 ` Pavel Fedin
2015-10-08 12:51 ` Marc Zyngier
2015-10-08 12:55 ` Peter Maydell
2015-10-08 10:25 ` Peter Maydell
2015-10-09 7:30 ` Pavel Fedin
2015-10-09 8:06 ` Marc Zyngier [this message]
2015-10-09 8:10 ` Pavel Fedin
2015-10-09 8:29 ` Marc Zyngier
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