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From: Marc Zyngier <maz@kernel.org>
To: David Brazdil <dbrazdil@google.com>
Cc: kvmarm@lists.cs.columbia.edu,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, James Morse <james.morse@arm.com>,
	Julien Thierry <julien.thierry.kdev@gmail.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>, Dennis Zhou <dennis@kernel.org>,
	Tejun Heo <tj@kernel.org>, Christoph Lameter <cl@linux.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Quentin Perret <qperret@google.com>,
	Andrew Scull <ascull@google.com>,
	Andrew Walbran <qwandor@google.com>,
	kernel-team@android.com
Subject: Re: [PATCH v1 13/24] kvm: arm64: Add CPU entry point in nVHE hyp
Date: Mon, 16 Nov 2020 12:40:34 +0000	[thread overview]
Message-ID: <549d918182c28d88550d27c068b772be@kernel.org> (raw)
In-Reply-To: <20201116114952.ybj24wx44lofqs25@google.com>

On 2020-11-16 11:49, David Brazdil wrote:
>> >  #ifdef CONFIG_CPU_PM
>> >    DEFINE(CPU_CTX_SP,		offsetof(struct cpu_suspend_ctx, sp));
>> > diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-init.S
>> > b/arch/arm64/kvm/hyp/nvhe/hyp-init.S
>> > index 1697d25756e9..f999a35b2c8c 100644
>> > --- a/arch/arm64/kvm/hyp/nvhe/hyp-init.S
>> > +++ b/arch/arm64/kvm/hyp/nvhe/hyp-init.S
>> > @@ -6,6 +6,7 @@
>> >
>> >  #include <linux/arm-smccc.h>
>> >  #include <linux/linkage.h>
>> > +#include <linux/irqchip/arm-gic-v3.h>
>> 
>> This should probably be included from the file that provides 
>> init_el2_state.
> 
> Agreed. This is a workaround for the fact that the arm-gic* headers 
> don't play
> nice with each other (define the same constants).

Ah, that...

> Including arm-gic-v3.h in
> kvm_asm.h will trigger macro redefine warnings in vgic*-v2.c because 
> they
> include arm-gic.h.

Boo.

> Another option is to create a header just for el2 init. Would that be
> preferable? Other ideas?

Having an asm/el2_setup.h file feels like a better option. After all, it
is in no way KVM specific, and having the macros hanging around in
asm/kvm_asm.h feels odd.

         M.
-- 
Jazz is not dead. It just smells funny...

  reply	other threads:[~2020-11-16 12:40 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-09 11:32 [PATCH v1 00/24] Opt-in always-on nVHE hypervisor David Brazdil
2020-11-09 11:32 ` [PATCH v1 01/24] psci: Accessor for configured PSCI version David Brazdil
2020-11-10 14:43   ` Marc Zyngier
2020-11-11 11:31     ` David Brazdil
2020-11-09 11:32 ` [PATCH v1 02/24] psci: Accessor for configured PSCI function IDs David Brazdil
2020-11-09 11:32 ` [PATCH v1 03/24] arm64: Move MAIR_EL1_SET to asm/memory.h David Brazdil
2020-11-10 14:49   ` Marc Zyngier
2020-11-09 11:32 ` [PATCH v1 04/24] kvm: arm64: Initialize MAIR_EL2 using a constant David Brazdil
2020-11-09 11:32 ` [PATCH v1 05/24] kvm: arm64: Add .hyp.data..ro_after_init ELF section David Brazdil
2020-11-09 11:32 ` [PATCH v1 06/24] kvm: arm64: Support per_cpu_ptr in nVHE hyp code David Brazdil
2020-11-10 15:08   ` Marc Zyngier
2020-11-11 12:32     ` David Brazdil
2020-11-11 12:46       ` Marc Zyngier
2020-11-09 11:32 ` [PATCH v1 07/24] kvm: arm64: Create nVHE copy of cpu_logical_map David Brazdil
2020-11-10 15:24   ` Marc Zyngier
2020-11-11 13:03     ` David Brazdil
2020-11-11 13:29       ` Marc Zyngier
2020-11-11 13:45         ` David Brazdil
2020-11-11 13:52           ` Marc Zyngier
2020-11-09 11:32 ` [PATCH v1 08/24] kvm: arm64: Move hyp-init params to a per-CPU struct David Brazdil
2020-11-10 15:30   ` Marc Zyngier
2020-11-09 11:32 ` [PATCH v1 09/24] kvm: arm64: Refactor handle_trap to use a switch David Brazdil
2020-11-09 11:32 ` [PATCH v1 10/24] kvm: arm64: Extract parts of el2_setup into a macro David Brazdil
2020-11-10 15:56   ` Marc Zyngier
2020-11-16 17:56     ` David Brazdil
2020-11-09 11:32 ` [PATCH v1 11/24] kvm: arm64: Add SMC handler in nVHE EL2 David Brazdil
2020-11-11 12:12   ` Marc Zyngier
2020-11-09 11:32 ` [PATCH v1 12/24] kvm: arm64: Extract __do_hyp_init into a helper function David Brazdil
2020-11-09 11:32 ` [PATCH v1 13/24] kvm: arm64: Add CPU entry point in nVHE hyp David Brazdil
2020-11-11 11:57   ` Marc Zyngier
2020-11-16 11:49     ` David Brazdil
2020-11-16 12:40       ` Marc Zyngier [this message]
2020-11-09 11:32 ` [PATCH v1 14/24] kvm: arm64: Add function to enter host from KVM nVHE hyp code David Brazdil
2020-11-09 11:32 ` [PATCH v1 15/24] kvm: arm64: Bootstrap PSCI SMC handler in nVHE EL2 David Brazdil
2020-11-11 13:18   ` Marc Zyngier
2020-11-09 11:32 ` [PATCH v1 16/24] kvm: arm64: Add offset for hyp VA <-> PA conversion David Brazdil
2020-11-11 13:47   ` Marc Zyngier
2020-11-09 11:32 ` [PATCH v1 17/24] kvm: arm64: Add __hyp_pa_symbol helper macro David Brazdil
2020-11-09 16:59   ` Quentin Perret
2020-11-09 18:10     ` Marc Zyngier
2020-11-10  9:24       ` David Brazdil
2020-11-09 11:32 ` [PATCH v1 18/24] kvm: arm64: Forward safe PSCI SMCs coming from host David Brazdil
2020-11-09 11:32 ` [PATCH v1 19/24] kvm: arm64: Intercept host's PSCI_CPU_ON SMCs David Brazdil
2020-11-09 11:32 ` [PATCH v1 20/24] kvm: arm64: Intercept host's CPU_SUSPEND PSCI SMCs David Brazdil
2020-11-09 11:32 ` [PATCH v1 21/24] kvm: arm64: Add kvm-arm.protected early kernel parameter David Brazdil
2020-11-09 11:32 ` [PATCH v1 22/24] kvm: arm64: Keep nVHE EL2 vector installed David Brazdil
2020-11-09 11:32 ` [PATCH v1 23/24] kvm: arm64: Trap host SMCs in protected mode David Brazdil
2020-11-10  5:02   ` kernel test robot
2020-11-10  9:03   ` Marc Zyngier
2020-11-10 13:00     ` David Brazdil
2020-11-09 11:32 ` [PATCH v1 24/24] kvm: arm64: Fix EL2 mode availability checks David Brazdil
2020-11-10 10:15 ` [PATCH v1 00/24] Opt-in always-on nVHE hypervisor Christoph Hellwig
2020-11-10 11:18   ` Marc Zyngier
2021-01-19 13:17     ` Janne Karhunen
2020-11-11 14:32 ` Marc Zyngier

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