From: Will Deacon <will@kernel.org>
To: Marc Zyngier <maz@kernel.org>
Cc: Fuad Tabba <fuad.tabba@linux.dev>,
oupton@kernel.org, kvmarm@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, catalin.marinas@arm.com,
joey.gouly@arm.com, seiden@linux.ibm.com, suzuki.poulose@arm.com,
yuzenghui@huawei.com, mark.rutland@arm.com, steven.price@arm.com,
vdonnefort@google.com, qperret@google.com
Subject: Re: [PATCH v3 15/18] KVM: arm64: Reject host access to protected VM private state
Date: Fri, 18 Sep 2026 14:24:46 +0100 [thread overview]
Message-ID: <aq07ngt4hV2gcz7y@willie-the-truck> (raw)
In-Reply-To: <aq0628Ci4pfEj0KG@willie-the-truck>
On Fri, Sep 18, 2026 at 02:21:31PM +0100, Will Deacon wrote:
> In our recent investigation, it turned out that both kvmtool and crosvm
> were perfectly happy with ONE_REG returning an error in normal operation
> but we needed a handful of fixes for kvmtool [1] to handle things like
> the 'debug' command.
... and here's the link I forgot:
[1] https://lore.kernel.org/all/20260831192406.1341841-2-fuad.tabba@linux.dev/
Will
next prev parent reply other threads:[~2026-09-18 13:25 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-14 11:33 [PATCH v3 00/18] KVM: arm64: Confine protected VM vCPU state to EL2 Fuad Tabba
2026-09-14 11:33 ` [PATCH v3 01/18] KVM: arm64: Sync HCR_EL2.VSE back to the host vCPU under pKVM Fuad Tabba
2026-09-14 11:33 ` [PATCH v3 02/18] KVM: arm64: Validate the host vCPU's VM before reading it " Fuad Tabba
2026-09-14 11:33 ` [PATCH v3 03/18] KVM: arm64: Pin the host vCPU before adjusting its PC " Fuad Tabba
2026-09-14 11:33 ` [PATCH v3 04/18] KVM: arm64: Disable steal time for protected VMs Fuad Tabba
2026-09-22 14:34 ` Vincent Donnefort
2026-09-14 11:33 ` [PATCH v3 05/18] KVM: arm64: Introduce per-EC entry handlers for pKVM Fuad Tabba
2026-09-14 11:33 ` [PATCH v3 06/18] KVM: arm64: Skip fixed-feature state flush for protected vCPUs Fuad Tabba
2026-09-14 11:33 ` [PATCH v3 07/18] KVM: arm64: Add {flush,sync}_hyp_timer_state() primitives Fuad Tabba
2026-09-14 11:33 ` [PATCH v3 08/18] KVM: arm64: Add system register reset framework for protected VMs Fuad Tabba
2026-09-14 11:33 ` [PATCH v3 09/18] KVM: arm64: Implement HVC handling for protected guests at EL2 Fuad Tabba
2026-09-14 11:33 ` [PATCH v3 10/18] KVM: arm64: Handle PSCI calls for protected VMs " Fuad Tabba
2026-09-22 16:35 ` Vincent Donnefort
2026-09-22 16:37 ` Vincent Donnefort
2026-09-22 17:07 ` Vincent Donnefort
2026-09-23 9:51 ` Fuad Tabba
2026-09-24 8:30 ` Will Deacon
2026-09-24 11:26 ` Fuad Tabba
2026-09-24 12:14 ` Will Deacon
2026-09-24 15:21 ` Fuad Tabba
2026-10-01 12:58 ` Will Deacon
2026-10-01 13:11 ` Fuad Tabba
2026-10-01 12:59 ` Will Deacon
2026-10-01 13:11 ` Fuad Tabba
2026-09-14 11:33 ` [PATCH v3 11/18] KVM: arm64: Restrict KVM_ARM_VCPU_INIT and PSCI version for protected VMs Fuad Tabba
2026-09-14 11:33 ` [PATCH v3 12/18] KVM: arm64: Prevent host PC adjustments for protected vCPUs Fuad Tabba
2026-09-14 13:42 ` Marc Zyngier
2026-09-14 14:43 ` Fuad Tabba
2026-09-15 11:02 ` Marc Zyngier
2026-09-15 11:19 ` Fuad Tabba
2026-09-14 11:33 ` [PATCH v3 13/18] KVM: arm64: Inject an UNDEF at EL2 for unhandled protected guest exits Fuad Tabba
2026-09-14 11:33 ` [PATCH v3 14/18] KVM: arm64: Add per-EC entry/exit state marshalling for protected guests Fuad Tabba
2026-09-16 16:27 ` Marc Zyngier
2026-09-16 19:05 ` Fuad Tabba
2026-09-14 11:33 ` [PATCH v3 15/18] KVM: arm64: Reject host access to protected VM private state Fuad Tabba
2026-09-16 16:30 ` Marc Zyngier
2026-09-16 19:07 ` Fuad Tabba
2026-09-17 8:06 ` Marc Zyngier
2026-09-17 18:42 ` Fuad Tabba
2026-09-18 13:21 ` Will Deacon
2026-09-18 13:24 ` Will Deacon [this message]
2026-09-27 8:20 ` Marc Zyngier
2026-09-27 12:37 ` Fuad Tabba
2026-09-28 19:00 ` Fuad Tabba
2026-09-14 11:33 ` [PATCH v3 16/18] KVM: arm64: Reject host power-on of a vCPU that EL2 holds powered off Fuad Tabba
2026-09-16 16:43 ` Marc Zyngier
2026-09-16 19:08 ` Fuad Tabba
2026-09-14 11:33 ` [PATCH v3 17/18] KVM: arm64: Advertise the capabilities that protected VMs support Fuad Tabba
2026-09-14 11:33 ` [PATCH v3 18/18] KVM: arm64: Document the protected VM userspace API Fuad Tabba
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