From: Will Deacon <will@kernel.org>
To: kvmarm@lists.linux.dev
Cc: linux-arm-kernel@lists.infradead.org,
Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
Oliver Upton <oupton@kernel.org>, Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Quentin Perret <qperret@google.com>,
Fuad Tabba <tabba@google.com>,
Vincent Donnefort <vdonnefort@google.com>,
Mostafa Saleh <smostafa@google.com>
Subject: [PATCH v2 04/35] KVM: arm64: Rename __pkvm_pgtable_stage2_unmap()
Date: Mon, 19 Jan 2026 12:45:57 +0000 [thread overview]
Message-ID: <20260119124629.2563-5-will@kernel.org> (raw)
In-Reply-To: <20260119124629.2563-1-will@kernel.org>
In preparation for adding support for protected VMs, where pages are
donated rather than shared, rename __pkvm_pgtable_stage2_unmap() to
__pkvm_pgtable_stage2_unshare() to make it clearer about what is going
on.
Signed-off-by: Will Deacon <will@kernel.org>
---
arch/arm64/kvm/pkvm.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/arm64/kvm/pkvm.c b/arch/arm64/kvm/pkvm.c
index 7797813f4dbe..42f6e50825ac 100644
--- a/arch/arm64/kvm/pkvm.c
+++ b/arch/arm64/kvm/pkvm.c
@@ -322,7 +322,7 @@ int pkvm_pgtable_stage2_init(struct kvm_pgtable *pgt, struct kvm_s2_mmu *mmu,
return 0;
}
-static int __pkvm_pgtable_stage2_unmap(struct kvm_pgtable *pgt, u64 start, u64 end)
+static int __pkvm_pgtable_stage2_unshare(struct kvm_pgtable *pgt, u64 start, u64 end)
{
struct kvm *kvm = kvm_s2_mmu_to_kvm(pgt->mmu);
pkvm_handle_t handle = kvm->arch.pkvm.handle;
@@ -350,7 +350,7 @@ void pkvm_pgtable_stage2_destroy_range(struct kvm_pgtable *pgt,
if (!handle)
return;
- __pkvm_pgtable_stage2_unmap(pgt, addr, addr + size);
+ __pkvm_pgtable_stage2_unshare(pgt, addr, addr + size);
}
void pkvm_pgtable_stage2_destroy_pgd(struct kvm_pgtable *pgt)
@@ -386,7 +386,7 @@ int pkvm_pgtable_stage2_map(struct kvm_pgtable *pgt, u64 addr, u64 size,
return -EAGAIN;
/* Remove _any_ pkvm_mapping overlapping with the range, bigger or smaller. */
- ret = __pkvm_pgtable_stage2_unmap(pgt, addr, addr + size);
+ ret = __pkvm_pgtable_stage2_unshare(pgt, addr, addr + size);
if (ret)
return ret;
mapping = NULL;
@@ -409,7 +409,7 @@ int pkvm_pgtable_stage2_unmap(struct kvm_pgtable *pgt, u64 addr, u64 size)
{
lockdep_assert_held_write(&kvm_s2_mmu_to_kvm(pgt->mmu)->mmu_lock);
- return __pkvm_pgtable_stage2_unmap(pgt, addr, addr + size);
+ return __pkvm_pgtable_stage2_unshare(pgt, addr, addr + size);
}
int pkvm_pgtable_stage2_wrprotect(struct kvm_pgtable *pgt, u64 addr, u64 size)
--
2.52.0.457.g6b5491de43-goog
next prev parent reply other threads:[~2026-01-19 12:47 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-19 12:45 [PATCH v2 00/35] KVM: arm64: Add support for protected guest memory with pKVM Will Deacon
2026-01-19 12:45 ` [PATCH v2 01/35] KVM: arm64: Invert KVM_PGTABLE_WALK_HANDLE_FAULT to fix pKVM walkers Will Deacon
2026-01-19 12:45 ` [PATCH v2 02/35] KVM: arm64: Don't leak stage-2 page-table if VM fails to init under pKVM Will Deacon
2026-01-19 12:45 ` [PATCH v2 03/35] KVM: arm64: Move handle check into pkvm_pgtable_stage2_destroy_range() Will Deacon
2026-01-19 12:45 ` Will Deacon [this message]
2026-01-19 12:45 ` [PATCH v2 05/35] KVM: arm64: Don't advertise unsupported features for protected guests Will Deacon
2026-01-19 12:45 ` [PATCH v2 06/35] KVM: arm64: Expose self-hosted debug regs as RAZ/WI " Will Deacon
2026-01-19 12:46 ` [PATCH v2 07/35] KVM: arm64: Remove is_protected_kvm_enabled() checks from hypercalls Will Deacon
2026-02-10 14:53 ` Alexandru Elisei
2026-03-03 15:45 ` Will Deacon
2026-03-06 11:33 ` Alexandru Elisei
2026-01-19 12:46 ` [PATCH v2 08/35] KVM: arm64: Ignore MMU notifier callbacks for protected VMs Will Deacon
2026-01-19 12:46 ` [PATCH v2 09/35] KVM: arm64: Prevent unsupported memslot operations on " Will Deacon
2026-01-19 12:46 ` [PATCH v2 10/35] KVM: arm64: Ignore -EAGAIN when mapping in pages for the pKVM host Will Deacon
2026-01-19 12:46 ` [PATCH v2 11/35] KVM: arm64: Split teardown hypercall into two phases Will Deacon
2026-01-19 12:46 ` [PATCH v2 12/35] KVM: arm64: Introduce __pkvm_host_donate_guest() Will Deacon
2026-01-19 12:46 ` [PATCH v2 13/35] KVM: arm64: Hook up donation hypercall to pkvm_pgtable_stage2_map() Will Deacon
2026-01-19 12:46 ` [PATCH v2 14/35] KVM: arm64: Handle aborts from protected VMs Will Deacon
2026-02-12 10:37 ` Alexandru Elisei
2026-03-04 14:06 ` Will Deacon
2026-03-06 11:34 ` Alexandru Elisei
2026-03-11 10:24 ` Fuad Tabba
2026-01-19 12:46 ` [PATCH v2 15/35] KVM: arm64: Introduce __pkvm_reclaim_dying_guest_page() Will Deacon
2026-01-19 12:46 ` [PATCH v2 16/35] KVM: arm64: Hook up reclaim hypercall to pkvm_pgtable_stage2_destroy() Will Deacon
2026-01-19 12:46 ` [PATCH v2 17/35] KVM: arm64: Refactor enter_exception64() Will Deacon
2026-01-19 12:46 ` [PATCH v2 18/35] KVM: arm64: Inject SIGSEGV on illegal accesses Will Deacon
2026-01-19 12:46 ` [PATCH v2 19/35] KVM: arm64: Avoid pointless annotation when mapping host-owned pages Will Deacon
2026-01-19 12:46 ` [PATCH v2 20/35] KVM: arm64: Generalise kvm_pgtable_stage2_set_owner() Will Deacon
2026-01-19 12:46 ` [PATCH v2 21/35] KVM: arm64: Introduce host_stage2_set_owner_metadata_locked() Will Deacon
2026-01-19 12:46 ` [PATCH v2 22/35] KVM: arm64: Change 'pkvm_handle_t' to u16 Will Deacon
2026-01-28 10:28 ` Fuad Tabba
2026-01-19 12:46 ` [PATCH v2 23/35] KVM: arm64: Annotate guest donations with handle and gfn in host stage-2 Will Deacon
2026-01-28 10:29 ` Fuad Tabba
2026-01-19 12:46 ` [PATCH v2 24/35] KVM: arm64: Introduce hypercall to force reclaim of a protected page Will Deacon
2026-02-12 17:18 ` Alexandru Elisei
2026-03-04 14:08 ` Will Deacon
2026-01-19 12:46 ` [PATCH v2 25/35] KVM: arm64: Reclaim faulting page from pKVM in spurious fault handler Will Deacon
2026-02-12 17:22 ` Alexandru Elisei
2026-03-04 14:06 ` Will Deacon
2026-01-19 12:46 ` [PATCH v2 26/35] KVM: arm64: Return -EFAULT from VCPU_RUN on access to a poisoned pte Will Deacon
2026-01-19 12:46 ` [PATCH v2 27/35] KVM: arm64: Add hvc handler at EL2 for hypercalls from protected VMs Will Deacon
2026-01-19 12:46 ` [PATCH v2 28/35] KVM: arm64: Implement the MEM_SHARE hypercall for " Will Deacon
2026-01-19 12:46 ` [PATCH v2 29/35] KVM: arm64: Implement the MEM_UNSHARE " Will Deacon
2026-01-19 12:46 ` [PATCH v2 30/35] KVM: arm64: Allow userspace to create protected VMs when pKVM is enabled Will Deacon
2026-01-19 12:46 ` [PATCH v2 31/35] KVM: arm64: Add some initial documentation for pKVM Will Deacon
2026-01-19 12:46 ` [PATCH v2 32/35] KVM: arm64: Extend pKVM page ownership selftests to cover guest donation Will Deacon
2026-01-19 12:46 ` [PATCH v2 33/35] KVM: arm64: Register 'selftest_vm' in the VM table Will Deacon
2026-01-19 12:46 ` [PATCH v2 34/35] KVM: arm64: Extend pKVM page ownership selftests to cover forced reclaim Will Deacon
2026-01-19 12:46 ` [PATCH v2 35/35] KVM: arm64: Extend pKVM page ownership selftests to cover guest hvcs Will Deacon
2026-02-10 18:58 ` [PATCH v2 00/35] KVM: arm64: Add support for protected guest memory with pKVM Trilok Soni
2026-02-10 19:03 ` Fuad Tabba
2026-02-16 10:58 ` Venkata Rao Kakani
2026-02-16 11:00 ` Fuad Tabba
2026-02-17 10:43 ` Venkata Rao Kakani
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