From: Hyunwoo Kim <imv4bel@gmail•com>
To: tabba@google•com, maz@kernel•org, oupton@kernel•org,
joey.gouly@arm•com, seiden@linux•ibm.com, suzuki.poulose@arm•com,
yuzenghui@huawei•com, catalin.marinas@arm•com, will@kernel•org
Cc: linux-arm-kernel@lists•infradead.org, kvmarm@lists•linux.dev,
imv4bel@gmail•com
Subject: [PATCH v2 0/2] KVM: arm64: Sanitise host vCPU fields copied in flush_hyp_vcpu()
Date: Fri, 5 Jun 2026 00:12:01 +0900 [thread overview]
Message-ID: <20260604151210.1304051-1-imv4bel@gmail.com> (raw)
flush_hyp_vcpu() copies the host vCPU context and vGIC state into the
hyp's private vCPU on every run. This series sanitises two fields that
it currently copies verbatim (host -> EL2): __hyp_running_vcpu is
cleared in the guest context, and used_lrs is bounded by the number of
implemented list registers.
v1 -> v2: split into two patches, one per field, per review.
Hyunwoo Kim (2):
KVM: arm64: Clear __hyp_running_vcpu when flushing the pKVM hyp vCPU
KVM: arm64: Bound used_lrs when flushing the pKVM hyp vCPU
arch/arm64/kvm/hyp/nvhe/hyp-main.c | 11 +++++++++++
1 file changed, 11 insertions(+)
--
2.43.0
next reply other threads:[~2026-06-04 15:13 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-04 15:12 Hyunwoo Kim [this message]
2026-06-04 15:12 ` [PATCH v2 1/2] KVM: arm64: Clear __hyp_running_vcpu when flushing the pKVM hyp vCPU Hyunwoo Kim
2026-06-04 15:12 ` [PATCH v2 2/2] KVM: arm64: Bound used_lrs " Hyunwoo Kim
2026-06-04 15:29 ` [PATCH v2 0/2] KVM: arm64: Sanitise host vCPU fields copied in flush_hyp_vcpu() Fuad Tabba
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