From: Fuad Tabba <tabba@google.com>
To: kvm@vger.kernel.org, kvmarm@lists.linux.dev,
linux-arm-kernel@lists.infradead.org
Cc: maz@kernel.org, oliver.upton@linux.dev, joey.gouly@arm.com,
suzuki.poulose@arm.com, yuzenghui@huawei.com,
catalin.marinas@arm.com, will@kernel.org, tabba@google.com,
stable@vger.kernel.org
Subject: [PATCH v1 3/3] KVM: arm64: Remove redundant kern_hyp_va() in unpin_host_sve_state()
Date: Thu, 12 Feb 2026 09:02:52 +0000 [thread overview]
Message-ID: <20260212090252.158689-4-tabba@google.com> (raw)
In-Reply-To: <20260212090252.158689-1-tabba@google.com>
The `sve_state` pointer in `hyp_vcpu->vcpu.arch` is initialized as a
hypervisor virtual address during vCPU initialization in
`pkvm_vcpu_init_sve()`.
`unpin_host_sve_state()` calls `kern_hyp_va()` on this address. Since
`kern_hyp_va()` is idempotent, it's not a bug. However, it is
unnecessary and potentially confusing. Remove the redundant conversion.
Signed-off-by: Fuad Tabba <tabba@google.com>
---
arch/arm64/kvm/hyp/nvhe/pkvm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 267854ed29c8..8b9e027ec86a 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -393,7 +393,7 @@ static void unpin_host_sve_state(struct pkvm_hyp_vcpu *hyp_vcpu)
if (!vcpu_has_feature(&hyp_vcpu->vcpu, KVM_ARM_VCPU_SVE))
return;
- sve_state = kern_hyp_va(hyp_vcpu->vcpu.arch.sve_state);
+ sve_state = hyp_vcpu->vcpu.arch.sve_state;
hyp_unpin_shared_mem(sve_state,
sve_state + vcpu_sve_state_size(&hyp_vcpu->vcpu));
}
--
2.53.0.239.g8d8fc8a987-goog
prev parent reply other threads:[~2026-02-12 9:02 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-12 9:02 [PATCH v1 0/3] KVM: arm64: Fix guest feature sanitization and pKVM state synchronization Fuad Tabba
2026-02-12 9:02 ` [PATCH v1 1/3] KVM: arm64: Hide S1POE from guests when not supported by the host Fuad Tabba
2026-02-12 9:29 ` Marc Zyngier
2026-02-12 9:41 ` Fuad Tabba
2026-02-12 15:35 ` Marc Zyngier
2026-02-12 18:53 ` Fuad Tabba
2026-02-13 10:40 ` Marc Zyngier
2026-02-12 9:02 ` [PATCH v1 2/3] KVM: arm64: Fix ID register initialization for non-protected pKVM guests Fuad Tabba
2026-02-13 11:03 ` Marc Zyngier
2026-02-13 11:07 ` Fuad Tabba
2026-02-12 9:02 ` Fuad Tabba [this message]
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=20260212090252.158689-4-tabba@google.com \
--to=tabba@google.com \
--cc=catalin.marinas@arm.com \
--cc=joey.gouly@arm.com \
--cc=kvm@vger.kernel.org \
--cc=kvmarm@lists.linux.dev \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=maz@kernel.org \
--cc=oliver.upton@linux.dev \
--cc=stable@vger.kernel.org \
--cc=suzuki.poulose@arm.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