From: Andrew Walbran <qwandor@google.com>
To: Quentin Perret <qperret@google.com>
Cc: Marc Zyngier <maz@kernel.org>, James Morse <james.morse@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org,
kernel-team@android.com
Subject: Re: [PATCH 3/6] KVM: arm64: Make the hyp memory pool static
Date: Wed, 8 Dec 2021 16:23:37 +0000 [thread overview]
Message-ID: <CA+_y_2GOg8TXgULBYCLfb3P1YrKX1U7H3nf-C6cMJj-B5j6bpA@mail.gmail.com> (raw)
In-Reply-To: <20211208152300.2478542-4-qperret@google.com>
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Reviewed-by: Andrew Walbran <qwandor@google.com>
On Wed, 8 Dec 2021 at 15:23, 'Quentin Perret' via kernel-team
<kernel-team@android.com> wrote:
>
> The hyp memory pool struct is sized to fit exactly the needs of the
> hypervisor stage-1 page-table allocator, so it is important it is not
> used for anything else. As it is currently used only from setup.c,
> reduce its visibility by marking it static.
>
> Signed-off-by: Quentin Perret <qperret@google.com>
> ---
> arch/arm64/kvm/hyp/include/nvhe/mm.h | 1 -
> arch/arm64/kvm/hyp/nvhe/setup.c | 2 +-
> 2 files changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/arch/arm64/kvm/hyp/include/nvhe/mm.h b/arch/arm64/kvm/hyp/include/nvhe/mm.h
> index ef6a58a04235..3f60d6cc5368 100644
> --- a/arch/arm64/kvm/hyp/include/nvhe/mm.h
> +++ b/arch/arm64/kvm/hyp/include/nvhe/mm.h
> @@ -12,7 +12,6 @@
>
> extern struct kvm_pgtable pkvm_pgtable;
> extern hyp_spinlock_t pkvm_pgd_lock;
> -extern struct hyp_pool hpool;
> extern u64 __io_map_base;
>
> int hyp_create_idmap(u32 hyp_va_bits);
> diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
> index 51e68a040d8a..e31149965204 100644
> --- a/arch/arm64/kvm/hyp/nvhe/setup.c
> +++ b/arch/arm64/kvm/hyp/nvhe/setup.c
> @@ -18,7 +18,6 @@
> #include <nvhe/mm.h>
> #include <nvhe/trap_handler.h>
>
> -struct hyp_pool hpool;
> unsigned long hyp_nr_cpus;
>
> #define hyp_percpu_size ((unsigned long)__per_cpu_end - \
> @@ -28,6 +27,7 @@ static void *vmemmap_base;
> static void *hyp_pgt_base;
> static void *host_s2_pgt_base;
> static struct kvm_pgtable_mm_ops pkvm_pgtable_mm_ops;
> +static struct hyp_pool hpool;
>
> static int divide_memory_pool(void *virt, unsigned long size)
> {
> --
> 2.34.1.400.ga245620fadb-goog
>
> --
> To unsubscribe from this group and stop receiving emails from it, send an email to kernel-team+unsubscribe@android.com.
>
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next prev parent reply other threads:[~2021-12-08 16:23 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-08 15:22 [PATCH 0/6] KVM: arm64: Miscellaneous pkvm fixes Quentin Perret
2021-12-08 15:22 ` [PATCH 1/6] KVM: arm64: pkvm: Fix hyp_pool max order Quentin Perret
2021-12-08 17:27 ` Will Deacon
2021-12-08 15:22 ` [PATCH 2/6] KVM: arm64: pkvm: Disable GICv2 support Quentin Perret
2021-12-08 17:44 ` Will Deacon
2021-12-08 15:22 ` [PATCH 3/6] KVM: arm64: Make the hyp memory pool static Quentin Perret
2021-12-08 16:23 ` Andrew Walbran [this message]
2021-12-08 15:22 ` [PATCH 4/6] KVM: arm64: Make __io_map_base static Quentin Perret
2021-12-08 17:45 ` Will Deacon
2021-12-08 15:22 ` [PATCH 5/6] KVM: arm64: pkvm: Stub io map functions Quentin Perret
2021-12-08 17:49 ` Will Deacon
2021-12-08 15:22 ` [PATCH 6/6] KVM: arm64: pkvm: Make kvm_host_owns_hyp_mappings() robust to VHE Quentin Perret
2021-12-08 17:50 ` Will Deacon
2021-12-15 14:30 ` [PATCH 0/6] KVM: arm64: Miscellaneous pkvm fixes Marc Zyngier
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