mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: kvm@vger.kernel.org, kvmarm@lists.linux.dev
Cc: maz@kernel.org, will@kernel.org, catalin.marinas@arm.com,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, steven.price@arm.com,
	aneesh.kumar@kernel.org, oupton@kernel.org, gshan@redhat.com,
	joey.gouly@arm.com, tabba@google.com, yuzenghui@huawei.com,
	linux-coco@lists.linux.dev, gankulkarni@os.amperecomputing.com,
	sdonthineni@nvidia.com, alpergun@google.com,
	fj0570is@fujitsu.com, WeiLin.Chang@arm.com,
	lpieralisi@kernel.org, enju.kohei@fujitsu.com,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Fuad Tabba <fuad.tabba@linux.dev>
Subject: [PATCH v19 08/20] KVM: arm64: Reuse kvm_stage2_unmap_range in kvm_unmap_gfn_range
Date: Sun, 20 Sep 2026 22:28:33 +0100	[thread overview]
Message-ID: <20260920212845.707-9-suzuki.poulose@arm.com> (raw)
In-Reply-To: <20260920212845.707-1-suzuki.poulose@arm.com>

In preparation for adding VM specific backends for stage2 operation,
switch to kvm_stage2_unmap_range() instead of __unmap_stage2_range()
from the kvm_unmap_gfn_range(). Drop the bail out check for protected
VMs and defer that to the one in kvm_stage2_unmap_range(). Later we
would replace the logic in kvm_stage2_unmap_range() with VM specific
backends.

No functional changes intended.

Reviewed-by: Fuad Tabba <fuad.tabba@linux.dev>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
---
 arch/arm64/kvm/mmu.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 0f4e8b71fa85d..03f2017a7404a 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -2436,12 +2436,12 @@ int kvm_handle_guest_abort(struct kvm_vcpu *vcpu)
 
 bool kvm_unmap_gfn_range(struct kvm *kvm, struct kvm_gfn_range *range)
 {
-	if (!kvm->arch.mmu.pgt || kvm_vm_is_protected(kvm))
+	if (!kvm->arch.mmu.pgt)
 		return false;
 
-	__unmap_stage2_range(&kvm->arch.mmu, range->start << PAGE_SHIFT,
-			     (range->end - range->start) << PAGE_SHIFT,
-			     range->may_block);
+	kvm_stage2_unmap_range(&kvm->arch.mmu, range->start << PAGE_SHIFT,
+				(range->end - range->start) << PAGE_SHIFT,
+				range->may_block);
 
 	kvm_nested_s2_unmap(kvm, range->may_block);
 	return false;
-- 
2.43.0


  parent reply	other threads:[~2026-09-20 21:29 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-20 21:28 [PATCH v19 00/20] KVM: arm64: CCA: Add basic plumbing for Realms Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 01/20] KVM: arm64: protected VM: Handle user writes to CNTVCT_EL0/CNTPCT_EL0 Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 02/20] KVM: arm64: Disable Steal time accounting for protected guests Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 03/20] KVM: arm64: Include kvm_emulate.h in kvm/arm_psci.h Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 04/20] KVM: arm64: Avoid including linux/kvm_host.h in kvm_pgtable.h Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 05/20] KVM: arm64: Track the type of VM in kvm_arch Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 06/20] KVM: arm64: Refactor the vcpu_load to allow for VM specific callbacks Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 07/20] KVM: arm64: Add vcpu load/put call backs for flavors Suzuki K Poulose
2026-09-20 21:28 ` Suzuki K Poulose [this message]
2026-09-20 21:28 ` [PATCH v19 09/20] KVM: arm64: Add VM specific callback for S2 MMU operations Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 10/20] KVM: arm64: Abstract out memory abort handling Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 11/20] KVM: arm64: Mandate VGIC v3 for for VMs running on hyp that don't trust the host Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 12/20] KVM: arm64: CCA: Add a new mode for supporting Realm guests Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 13/20] KVM: arm64: CCA: Add VCPU load/put for Realms Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 14/20] KVM: arm64: CCA: Add bare minimal S2 operations for Realm Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 15/20] KVM: arm64: CCA: Introduce Realms Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 16/20] KVM: arm64: CCA: Don't expose unsupported capabilities for realm guests Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 17/20] KVM: arm64: CCA: WARN on injected undef exceptions Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 18/20] KVM: arm64: CCA: Support timers in realm RECs Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 19/20] KVM: arm64: CCA: Expose SVE VL register before VCPU finalization Suzuki K Poulose
2026-09-20 21:28 ` [PATCH v19 20/20] KVM: arm64: CCA: Control user register access for Realms Suzuki K Poulose

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20260920212845.707-9-suzuki.poulose@arm.com \
    --to=suzuki.poulose@arm.com \
    --cc=WeiLin.Chang@arm.com \
    --cc=alpergun@google.com \
    --cc=aneesh.kumar@kernel.org \
    --cc=catalin.marinas@arm.com \
    --cc=enju.kohei@fujitsu.com \
    --cc=fj0570is@fujitsu.com \
    --cc=fuad.tabba@linux.dev \
    --cc=gankulkarni@os.amperecomputing.com \
    --cc=gshan@redhat.com \
    --cc=joey.gouly@arm.com \
    --cc=kvm@vger.kernel.org \
    --cc=kvmarm@lists.linux.dev \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-coco@lists.linux.dev \
    --cc=linux-kernel@vger.kernel.org \
    --cc=lpieralisi@kernel.org \
    --cc=maz@kernel.org \
    --cc=oupton@kernel.org \
    --cc=sdonthineni@nvidia.com \
    --cc=steven.price@arm.com \
    --cc=tabba@google.com \
    --cc=will@kernel.org \
    --cc=yuzenghui@huawei.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®