From: Will Deacon <will@kernel.org>
To: kvmarm@lists.cs.columbia.edu
Cc: kernel-team@android.com, Marc Zyngier <maz@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 20/21] KVM: arm64: Remove unused 'pgd' field from 'struct kvm_s2_mmu'
Date: Tue, 25 Aug 2020 10:39:52 +0100 [thread overview]
Message-ID: <20200825093953.26493-21-will@kernel.org> (raw)
In-Reply-To: <20200825093953.26493-1-will@kernel.org>
The stage-2 page-tables are entirely encapsulated by the 'pgt' field of
'struct kvm_s2_mmu', so remove the unused 'pgd' field.
Cc: Marc Zyngier <maz@kernel.org>
Cc: Quentin Perret <qperret@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
---
arch/arm64/include/asm/kvm_host.h | 1 -
arch/arm64/kvm/mmu.c | 2 --
2 files changed, 3 deletions(-)
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 0b7c702b2151..41caf29bd93c 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -79,7 +79,6 @@ struct kvm_s2_mmu {
* for vEL1/EL0 with vHCR_EL2.VM == 0. In that case, we use the
* canonical stage-2 page tables.
*/
- pgd_t *pgd;
phys_addr_t pgd_phys;
struct kvm_pgtable *pgt;
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index ddeec0b03666..f28e03dcb897 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -384,7 +384,6 @@ int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu)
mmu->kvm = kvm;
mmu->pgt = pgt;
mmu->pgd_phys = __pa(pgt->pgd);
- mmu->pgd = (void *)pgt->pgd;
mmu->vmid.vmid_gen = 0;
return 0;
@@ -470,7 +469,6 @@ void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu)
spin_lock(&kvm->mmu_lock);
pgt = mmu->pgt;
if (pgt) {
- mmu->pgd = NULL;
mmu->pgd_phys = 0;
mmu->pgt = NULL;
free_percpu(mmu->last_vcpu_ran);
--
2.28.0.297.g1956fa8f8d-goog
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WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will@kernel.org>
To: kvmarm@lists.cs.columbia.edu
Cc: kernel-team@android.com, Gavin Shan <gshan@redhat.com>,
Suzuki Poulose <suzuki.poulose@arm.com>,
Marc Zyngier <maz@kernel.org>,
Quentin Perret <qperret@google.com>,
James Morse <james.morse@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 20/21] KVM: arm64: Remove unused 'pgd' field from 'struct kvm_s2_mmu'
Date: Tue, 25 Aug 2020 10:39:52 +0100 [thread overview]
Message-ID: <20200825093953.26493-21-will@kernel.org> (raw)
In-Reply-To: <20200825093953.26493-1-will@kernel.org>
The stage-2 page-tables are entirely encapsulated by the 'pgt' field of
'struct kvm_s2_mmu', so remove the unused 'pgd' field.
Cc: Marc Zyngier <maz@kernel.org>
Cc: Quentin Perret <qperret@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
---
arch/arm64/include/asm/kvm_host.h | 1 -
arch/arm64/kvm/mmu.c | 2 --
2 files changed, 3 deletions(-)
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 0b7c702b2151..41caf29bd93c 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -79,7 +79,6 @@ struct kvm_s2_mmu {
* for vEL1/EL0 with vHCR_EL2.VM == 0. In that case, we use the
* canonical stage-2 page tables.
*/
- pgd_t *pgd;
phys_addr_t pgd_phys;
struct kvm_pgtable *pgt;
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index ddeec0b03666..f28e03dcb897 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -384,7 +384,6 @@ int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu)
mmu->kvm = kvm;
mmu->pgt = pgt;
mmu->pgd_phys = __pa(pgt->pgd);
- mmu->pgd = (void *)pgt->pgd;
mmu->vmid.vmid_gen = 0;
return 0;
@@ -470,7 +469,6 @@ void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu)
spin_lock(&kvm->mmu_lock);
pgt = mmu->pgt;
if (pgt) {
- mmu->pgd = NULL;
mmu->pgd_phys = 0;
mmu->pgt = NULL;
free_percpu(mmu->last_vcpu_ran);
--
2.28.0.297.g1956fa8f8d-goog
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next prev parent reply other threads:[~2020-08-25 9:40 UTC|newest]
Thread overview: 172+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-25 9:39 [PATCH v3 00/21] KVM: arm64: Rewrite page-table code and fault handling Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-08-25 9:39 ` [PATCH v3 01/21] KVM: arm64: Remove kvm_mmu_free_memory_caches() Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-08-25 9:39 ` [PATCH v3 02/21] KVM: arm64: Add stand-alone page-table walker infrastructure Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-08-27 16:27 ` Alexandru Elisei
2020-08-27 16:27 ` Alexandru Elisei
2020-08-28 15:43 ` Alexandru Elisei
2020-08-28 15:43 ` Alexandru Elisei
2020-09-02 10:36 ` Will Deacon
2020-09-02 10:36 ` Will Deacon
2020-08-28 15:51 ` Alexandru Elisei
2020-08-28 15:51 ` Alexandru Elisei
2020-09-02 10:49 ` Will Deacon
2020-09-02 10:49 ` Will Deacon
2020-09-02 6:31 ` Gavin Shan
2020-09-02 6:31 ` Gavin Shan
2020-09-02 11:02 ` Will Deacon
2020-09-02 11:02 ` Will Deacon
2020-09-03 1:11 ` Gavin Shan
2020-09-03 1:11 ` Gavin Shan
2020-08-25 9:39 ` [PATCH v3 03/21] KVM: arm64: Add support for creating kernel-agnostic stage-1 page tables Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-08-28 15:35 ` Alexandru Elisei
2020-08-28 15:35 ` Alexandru Elisei
2020-09-02 10:06 ` Will Deacon
2020-09-02 10:06 ` Will Deacon
2020-08-25 9:39 ` [PATCH v3 04/21] KVM: arm64: Use generic allocator for hyp stage-1 page-tables Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-08-28 16:32 ` Alexandru Elisei
2020-08-28 16:32 ` Alexandru Elisei
2020-09-02 11:35 ` Will Deacon
2020-09-02 11:35 ` Will Deacon
2020-09-02 14:48 ` Alexandru Elisei
2020-09-02 14:48 ` Alexandru Elisei
2020-08-25 9:39 ` [PATCH v3 05/21] KVM: arm64: Add support for creating kernel-agnostic stage-2 page tables Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-09-02 6:40 ` Gavin Shan
2020-09-02 6:40 ` Gavin Shan
2020-09-02 11:30 ` Will Deacon
2020-09-02 11:30 ` Will Deacon
2020-08-25 9:39 ` [PATCH v3 06/21] KVM: arm64: Add support for stage-2 map()/unmap() in generic page-table Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-09-01 16:24 ` Alexandru Elisei
2020-09-01 16:24 ` Alexandru Elisei
2020-09-02 11:46 ` Will Deacon
2020-09-02 11:46 ` Will Deacon
2020-09-03 2:57 ` Gavin Shan
2020-09-03 2:57 ` Gavin Shan
2020-09-03 5:27 ` Gavin Shan
2020-09-03 5:27 ` Gavin Shan
2020-09-03 11:18 ` Gavin Shan
2020-09-03 11:18 ` Gavin Shan
2020-09-03 12:30 ` Will Deacon
2020-09-03 12:30 ` Will Deacon
2020-09-03 16:15 ` Will Deacon
2020-09-03 16:15 ` Will Deacon
2020-09-04 0:47 ` Gavin Shan
2020-09-04 0:47 ` Gavin Shan
2020-08-25 9:39 ` [PATCH v3 07/21] KVM: arm64: Convert kvm_phys_addr_ioremap() to generic page-table API Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-09-01 17:08 ` Alexandru Elisei
2020-09-01 17:08 ` Alexandru Elisei
2020-09-02 11:48 ` Will Deacon
2020-09-02 11:48 ` Will Deacon
2020-09-03 3:57 ` Gavin Shan
2020-09-03 3:57 ` Gavin Shan
2020-08-25 9:39 ` [PATCH v3 08/21] KVM: arm64: Convert kvm_set_spte_hva() " Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-09-02 15:37 ` Alexandru Elisei
2020-09-02 15:37 ` Alexandru Elisei
2020-09-03 16:37 ` Will Deacon
2020-09-03 16:37 ` Will Deacon
2020-09-03 4:13 ` Gavin Shan
2020-09-03 4:13 ` Gavin Shan
2020-08-25 9:39 ` [PATCH v3 09/21] KVM: arm64: Convert unmap_stage2_range() " Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-09-02 16:23 ` Alexandru Elisei
2020-09-02 16:23 ` Alexandru Elisei
2020-09-02 18:44 ` Alexandru Elisei
2020-09-02 18:44 ` Alexandru Elisei
2020-09-03 17:57 ` Will Deacon
2020-09-03 17:57 ` Will Deacon
2020-09-08 13:07 ` Alexandru Elisei
2020-09-08 13:07 ` Alexandru Elisei
2020-09-09 10:57 ` Alexandru Elisei
2020-09-09 10:57 ` Alexandru Elisei
2020-09-03 4:19 ` Gavin Shan
2020-09-03 4:19 ` Gavin Shan
2020-08-25 9:39 ` [PATCH v3 10/21] KVM: arm64: Add support for stage-2 page-aging in generic page-table Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-09-03 4:33 ` Gavin Shan
2020-09-03 4:33 ` Gavin Shan
2020-09-03 16:48 ` Will Deacon
2020-09-03 16:48 ` Will Deacon
2020-09-04 1:01 ` Gavin Shan
2020-09-04 1:01 ` Gavin Shan
2020-08-25 9:39 ` [PATCH v3 11/21] KVM: arm64: Convert page-aging and access faults to generic page-table API Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-09-03 4:37 ` Gavin Shan
2020-09-03 4:37 ` Gavin Shan
2020-08-25 9:39 ` [PATCH v3 12/21] KVM: arm64: Add support for stage-2 write-protect in generic page-table Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-09-03 4:47 ` Gavin Shan
2020-09-03 4:47 ` Gavin Shan
2020-08-25 9:39 ` [PATCH v3 13/21] KVM: arm64: Convert write-protect operation to generic page-table API Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-09-03 4:48 ` Gavin Shan
2020-09-03 4:48 ` Gavin Shan
2020-08-25 9:39 ` [PATCH v3 14/21] KVM: arm64: Add support for stage-2 cache flushing in generic page-table Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-09-03 4:51 ` Gavin Shan
2020-09-03 4:51 ` Gavin Shan
2020-08-25 9:39 ` [PATCH v3 15/21] KVM: arm64: Convert memslot cache-flushing code to generic page-table API Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-09-03 4:52 ` Gavin Shan
2020-09-03 4:52 ` Gavin Shan
2020-08-25 9:39 ` [PATCH v3 16/21] KVM: arm64: Add support for relaxing stage-2 perms in generic page-table code Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-09-03 4:55 ` Gavin Shan
2020-09-03 4:55 ` Gavin Shan
2020-08-25 9:39 ` [PATCH v3 17/21] KVM: arm64: Convert user_mem_abort() to generic page-table API Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-09-03 6:05 ` Gavin Shan
2020-09-03 6:05 ` Gavin Shan
2020-08-25 9:39 ` [PATCH v3 18/21] KVM: arm64: Check the pgt instead of the pgd when modifying page-table Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-09-03 5:00 ` Gavin Shan
2020-09-03 5:00 ` Gavin Shan
2020-08-25 9:39 ` [PATCH v3 19/21] KVM: arm64: Remove unused page-table code Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-09-03 6:02 ` Gavin Shan
2020-09-03 6:02 ` Gavin Shan
2020-08-25 9:39 ` Will Deacon [this message]
2020-08-25 9:39 ` [PATCH v3 20/21] KVM: arm64: Remove unused 'pgd' field from 'struct kvm_s2_mmu' Will Deacon
2020-09-03 5:07 ` Gavin Shan
2020-09-03 5:07 ` Gavin Shan
2020-09-03 16:50 ` Will Deacon
2020-09-03 16:50 ` Will Deacon
2020-09-04 0:59 ` Gavin Shan
2020-09-04 0:59 ` Gavin Shan
2020-09-04 10:02 ` Marc Zyngier
2020-09-04 10:02 ` Marc Zyngier
2020-08-25 9:39 ` [PATCH v3 21/21] KVM: arm64: Don't constrain maximum IPA size based on host configuration Will Deacon
2020-08-25 9:39 ` Will Deacon
2020-09-03 5:09 ` Gavin Shan
2020-09-03 5:09 ` Gavin Shan
2020-08-27 16:26 ` [PATCH v3 00/21] KVM: arm64: Rewrite page-table code and fault handling Alexandru Elisei
2020-08-27 16:26 ` Alexandru Elisei
2020-09-01 16:15 ` Will Deacon
2020-09-01 16:15 ` Will Deacon
2020-09-03 7:34 ` Gavin Shan
2020-09-03 7:34 ` Gavin Shan
2020-09-03 11:13 ` Gavin Shan
2020-09-03 11:13 ` Gavin Shan
2020-09-03 11:48 ` Gavin Shan
2020-09-03 11:48 ` Gavin Shan
2020-09-03 12:16 ` Will Deacon
2020-09-03 12:16 ` Will Deacon
2020-09-04 0:51 ` Gavin Shan
2020-09-04 0:51 ` Gavin Shan
2020-09-04 10:07 ` Marc Zyngier
2020-09-04 10:07 ` Marc Zyngier
2020-09-05 3:56 ` Gavin Shan
2020-09-05 3:56 ` Gavin Shan
2020-09-05 9:33 ` Marc Zyngier
2020-09-05 9:33 ` Marc Zyngier
2020-09-07 9:27 ` Will Deacon
2020-09-07 9:27 ` Will Deacon
2020-09-03 18:52 ` Will Deacon
2020-09-03 18:52 ` Will Deacon
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