From: Quentin Perret <qperret@google.com>
To: 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>, Fuad Tabba <tabba@google.com>,
David Brazdil <dbrazdil@google.com>,
Andrew Walbran <qwandor@google.com>
Cc: linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org,
kernel-team@android.com, qperret@google.com
Subject: [PATCH v2 05/15] KVM: arm64: Hook up ->page_count() for hypervisor stage-1 page-table
Date: Tue, 19 Oct 2021 13:12:54 +0100 [thread overview]
Message-ID: <20211019121304.2732332-6-qperret@google.com> (raw)
In-Reply-To: <20211019121304.2732332-1-qperret@google.com>
From: Will Deacon <will@kernel.org>
kvm_pgtable_hyp_unmap() relies on the ->page_count() function callback
being provided by the memory-management operations for the page-table.
Wire up this callback for the hypervisor stage-1 page-table.
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
---
arch/arm64/kvm/hyp/nvhe/setup.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 9e5c92237a51..56343b1bb3a9 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -247,6 +247,7 @@ void __noreturn __pkvm_init_finalise(void)
.virt_to_phys = hyp_virt_to_phys,
.get_page = hpool_get_page,
.put_page = hpool_put_page,
+ .page_count = hyp_page_count,
};
pkvm_pgtable.mm_ops = &pkvm_pgtable_mm_ops;
--
2.33.0.1079.g6e70778dc9-goog
next prev parent reply other threads:[~2021-10-19 12:13 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-19 12:12 [PATCH v2 00/15] KVM: arm64: pkvm: Implement unshare hypercall Quentin Perret
2021-10-19 12:12 ` [PATCH v2 01/15] KVM: arm64: Check if running in VHE from kvm_host_owns_hyp_mappings() Quentin Perret
2021-10-19 12:12 ` [PATCH v2 02/15] KVM: arm64: Provide {get,put}_page() stubs for early hyp allocator Quentin Perret
2021-10-19 12:12 ` [PATCH v2 03/15] KVM: arm64: Refcount hyp stage-1 pgtable pages Quentin Perret
2021-10-19 12:12 ` [PATCH v2 04/15] KVM: arm64: Fixup hyp stage-1 refcount Quentin Perret
2021-10-19 12:12 ` Quentin Perret [this message]
2021-10-19 12:12 ` [PATCH v2 06/15] KVM: arm64: Implement kvm_pgtable_hyp_unmap() at EL2 Quentin Perret
2021-10-19 12:12 ` [PATCH v2 07/15] KVM: arm64: Introduce kvm_share_hyp() Quentin Perret
2021-10-21 10:07 ` David Brazdil
2021-10-19 12:12 ` [PATCH v2 08/15] KVM: arm64: pkvm: Refcount the pages shared with EL2 Quentin Perret
2021-10-19 12:12 ` [PATCH v2 09/15] KVM: arm64: Extend pkvm_page_state enumeration to handle absent pages Quentin Perret
2021-10-19 12:12 ` [PATCH v2 10/15] KVM: arm64: Introduce wrappers for host and hyp spin lock accessors Quentin Perret
2021-10-19 12:13 ` [PATCH v2 11/15] KVM: arm64: Implement do_share() helper for sharing memory Quentin Perret
2021-10-19 12:13 ` [PATCH v2 12/15] KVM: arm64: Implement __pkvm_host_share_hyp() using do_share() Quentin Perret
2021-10-19 12:13 ` [PATCH v2 13/15] KVM: arm64: Implement do_unshare() helper for unsharing memory Quentin Perret
2021-10-19 12:13 ` [PATCH v2 14/15] KVM: arm64: Expose unshare hypercall to the host Quentin Perret
2021-10-19 12:13 ` [PATCH v2 15/15] KVM: arm64: pkvm: Unshare guest structs during teardown Quentin Perret
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