From: Marc Zyngier <maz@kernel.org>
To: Steven Price <steven.price@arm.com>
Cc: kvm@vger.kernel.org, kvmarm@lists.linux.dev,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, James Morse <james.morse@arm.com>,
Oliver Upton <oliver.upton@linux.dev>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Joey Gouly <joey.gouly@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
Christoffer Dall <christoffer.dall@arm.com>,
Fuad Tabba <tabba@google.com>,
linux-coco@lists.linux.dev,
Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>,
Gavin Shan <gshan@redhat.com>,
Shanker Donthineni <sdonthineni@nvidia.com>,
Alper Gun <alpergun@google.com>,
"Aneesh Kumar K . V" <aneesh.kumar@kernel.org>,
Emi Kisanuki <fj0570is@fujitsu.com>,
Vishal Annapurve <vannapurve@google.com>
Subject: Re: [PATCH v13 05/48] arm64: RMI: Temporarily add SMCs from RMM v1.0 spec
Date: Sat, 21 Mar 2026 13:21:56 +0000 [thread overview]
Message-ID: <87cy0xco7f.wl-maz@kernel.org> (raw)
In-Reply-To: <20260318155413.793430-6-steven.price@arm.com>
On Wed, 18 Mar 2026 15:53:29 +0000,
Steven Price <steven.price@arm.com> wrote:
>
> Not all the functionality has been migrated to the v2.0 specification,
> so for now we still rely on some v1.0 SMCs. This mixture is not
> spec-compliant, but is necessary until an updated RMM is available.
>
This sort of things really makes it awkward to review the series.
Do you really expect the reviewers to mentally triage what is current
and what is only throwaway code? I want to see patches that are merge
candidates, not patches that are only there to cope with the broken
state of the RMM.
If extra hacks are required to work with the current Franken-RMM, keep
them as a separate series that doesn't pollute what is targeted at
upstream.
It also means that any testing you have done will be invalidated when
the one true RMM shows up...
"This is great."
M.
--
Jazz isn't dead. It just smells funny.
next prev parent reply other threads:[~2026-03-21 13:22 UTC|newest]
Thread overview: 111+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-18 15:53 [PATCH v13 00/48] arm64: Support for Arm CCA in KVM Steven Price
2026-03-18 15:53 ` [PATCH v13 01/48] kvm: arm64: Include kvm_emulate.h in kvm/arm_psci.h Steven Price
2026-03-18 15:53 ` [PATCH v13 02/48] kvm: arm64: Avoid including linux/kvm_host.h in kvm_pgtable.h Steven Price
2026-03-18 15:53 ` [PATCH v13 03/48] arm64: RME: Handle Granule Protection Faults (GPFs) Steven Price
2026-03-18 15:53 ` [PATCH v13 04/48] arm64: RMI: Add SMC definitions for calling the RMM Steven Price
2026-03-18 16:07 ` Joey Gouly
2026-03-18 17:07 ` Steven Price
2026-03-18 15:53 ` [PATCH v13 05/48] arm64: RMI: Temporarily add SMCs from RMM v1.0 spec Steven Price
2026-03-21 13:21 ` Marc Zyngier [this message]
2026-03-23 10:30 ` Suzuki K Poulose
2026-03-18 15:53 ` [PATCH v13 06/48] arm64: RMI: Add wrappers for RMI calls Steven Price
2026-03-18 15:53 ` [PATCH v13 07/48] arm64: RMI: Check for RMI support at KVM init Steven Price
2026-03-19 10:38 ` Suzuki K Poulose
2026-03-19 12:47 ` Steven Price
2026-03-19 16:17 ` Wei-Lin Chang
2026-03-19 16:42 ` Steven Price
2026-03-19 18:05 ` Wei-Lin Chang
2026-03-20 16:01 ` Steven Price
2026-03-18 15:53 ` [PATCH v13 08/48] arm64: RMI: Configure the RMM with the host's page size Steven Price
2026-03-18 15:53 ` [PATCH v13 09/48] arm64: RMI: Check for LPA2 support Steven Price
2026-03-18 15:53 ` [PATCH v13 10/48] arm64: RMI: Ensure that the RMM has GPT entries for memory Steven Price
2026-03-19 10:31 ` Suzuki K Poulose
2026-03-19 15:20 ` Steven Price
2026-03-19 10:41 ` Suzuki K Poulose
2026-03-18 15:53 ` [PATCH v13 11/48] arm64: RMI: Define the user ABI Steven Price
2026-03-18 15:53 ` [PATCH v13 12/48] arm64: RMI: Basic infrastructure for creating a realm Steven Price
2026-03-19 16:11 ` Wei-Lin Chang
2026-03-19 16:24 ` Steven Price
2026-03-19 17:17 ` Wei-Lin Chang
2026-03-20 16:07 ` Steven Price
2026-03-21 16:34 ` Wei-Lin Chang
2026-03-18 15:53 ` [PATCH v13 13/48] kvm: arm64: Don't expose unsupported capabilities for realm guests Steven Price
2026-03-19 14:09 ` Suzuki K Poulose
2026-03-19 15:25 ` Steven Price
2026-03-18 15:53 ` [PATCH v13 14/48] KVM: arm64: Allow passing machine type in KVM creation Steven Price
2026-03-18 15:53 ` [PATCH v13 15/48] arm64: RMI: RTT tear down Steven Price
2026-03-19 17:35 ` Wei-Lin Chang
2026-03-20 16:12 ` Steven Price
2026-03-21 13:04 ` Wei-Lin Chang
2026-03-20 10:37 ` Suzuki K Poulose
2026-03-20 16:14 ` Steven Price
2026-03-18 15:53 ` [PATCH v13 16/48] arm64: RMI: Activate realm on first VCPU run Steven Price
2026-03-18 15:53 ` [PATCH v13 17/48] arm64: RMI: Allocate/free RECs to match vCPUs Steven Price
2026-03-19 18:10 ` Wei-Lin Chang
2026-03-20 16:26 ` Steven Price
2026-03-23 11:56 ` Suzuki K Poulose
2026-03-18 15:53 ` [PATCH v13 18/48] arm64: RMI: Support for the VGIC in realms Steven Price
2026-03-18 15:53 ` [PATCH v13 19/48] KVM: arm64: Support timers in realm RECs Steven Price
2026-03-18 15:53 ` [PATCH v13 20/48] arm64: RMI: Handle realm enter/exit Steven Price
2026-03-20 14:08 ` Suzuki K Poulose
2026-03-20 16:32 ` Steven Price
2026-03-23 10:03 ` Suzuki K Poulose
2026-03-18 15:53 ` [PATCH v13 21/48] arm64: RMI: Handle RMI_EXIT_RIPAS_CHANGE Steven Price
2026-03-20 11:15 ` Suzuki K Poulose
2026-03-18 15:53 ` [PATCH v13 22/48] KVM: arm64: Handle realm MMIO emulation Steven Price
2026-03-18 15:53 ` [PATCH v13 23/48] KVM: arm64: Expose support for private memory Steven Price
2026-03-19 19:01 ` Wei-Lin Chang
2026-03-20 16:39 ` Steven Price
2026-03-18 15:53 ` [PATCH v13 24/48] arm64: RMI: Allow populating initial contents Steven Price
2026-03-23 11:32 ` Suzuki K Poulose
2026-03-18 15:53 ` [PATCH v13 25/48] arm64: RMI: Set RIPAS of initial memslots Steven Price
2026-03-18 15:53 ` [PATCH v13 26/48] arm64: RMI: Create the realm descriptor Steven Price
2026-03-19 18:25 ` Wei-Lin Chang
2026-03-20 16:41 ` Steven Price
2026-03-21 16:20 ` Wei-Lin Chang
2026-03-18 15:53 ` [PATCH v13 27/48] arm64: RMI: Runtime faulting of memory Steven Price
2026-03-19 18:41 ` Wei-Lin Chang
2026-03-20 16:44 ` Steven Price
2026-03-18 15:53 ` [PATCH v13 28/48] KVM: arm64: Handle realm VCPU load Steven Price
2026-03-18 15:53 ` [PATCH v13 29/48] KVM: arm64: Validate register access for a Realm VM Steven Price
2026-03-18 15:53 ` [PATCH v13 30/48] KVM: arm64: Handle Realm PSCI requests Steven Price
2026-03-18 15:53 ` [PATCH v13 31/48] KVM: arm64: WARN on injected undef exceptions Steven Price
2026-03-18 15:53 ` [PATCH v13 32/48] arm64: Don't expose stolen time for realm guests Steven Price
2026-03-18 15:53 ` [PATCH v13 33/48] arm64: RMI: allow userspace to inject aborts Steven Price
2026-03-18 15:53 ` [PATCH v13 34/48] arm64: RMI: support RSI_HOST_CALL Steven Price
2026-03-18 15:53 ` [PATCH v13 35/48] arm64: RMI: Allow checking SVE on VM instance Steven Price
2026-03-18 15:54 ` [PATCH v13 36/48] arm64: RMI: Always use 4k pages for realms Steven Price
2026-03-19 10:24 ` Joey Gouly
2026-03-19 16:02 ` Steven Price
2026-03-18 15:54 ` [PATCH v13 37/48] arm64: RMI: Prevent Device mappings for Realms Steven Price
2026-03-19 10:27 ` Joey Gouly
2026-03-19 18:46 ` Wei-Lin Chang
2026-03-20 16:45 ` Steven Price
2026-03-21 16:23 ` Wei-Lin Chang
2026-03-18 15:54 ` [PATCH v13 38/48] arm64: RMI: Enable PMU support with a realm guest Steven Price
2026-03-18 15:54 ` [PATCH v13 39/48] arm64: RMI: Propagate number of breakpoints and watchpoints to userspace Steven Price
2026-03-19 18:50 ` Wei-Lin Chang
2026-03-20 16:45 ` Steven Price
2026-03-18 15:54 ` [PATCH v13 40/48] arm64: RMI: Set breakpoint parameters through SET_ONE_REG Steven Price
2026-03-18 15:54 ` [PATCH v13 41/48] arm64: RMI: Initialize PMCR.N with number counter supported by RMM Steven Price
2026-03-18 15:54 ` [PATCH v13 42/48] arm64: RMI: Propagate max SVE vector length from RMM Steven Price
2026-03-18 15:54 ` [PATCH v13 43/48] arm64: RMI: Configure max SVE vector length for a Realm Steven Price
2026-03-18 15:54 ` [PATCH v13 44/48] arm64: RMI: Provide register list for unfinalized RMI RECs Steven Price
2026-03-18 15:54 ` [PATCH v13 45/48] arm64: RMI: Provide accurate register list Steven Price
2026-03-19 18:53 ` Wei-Lin Chang
2026-03-20 16:45 ` Steven Price
2026-03-18 15:54 ` [PATCH v13 46/48] KVM: arm64: Expose KVM_ARM_VCPU_REC to user space Steven Price
2026-03-19 17:36 ` Suzuki K Poulose
2026-03-18 15:54 ` [PATCH v13 47/48] arm64: RMI: Enable realms to be created Steven Price
2026-03-18 15:54 ` [PATCH v13 48/48] [WIP] arm64: RMI: Add support for SRO Steven Price
2026-03-18 16:53 ` [PATCH v13 00/48] arm64: Support for Arm CCA in KVM Steven Price
2026-03-19 23:02 ` Mathieu Poirier
2026-03-20 16:45 ` Steven Price
2026-03-20 19:15 ` Mathieu Poirier
2026-03-25 6:37 ` Gavin Shan
2026-03-25 10:16 ` Suzuki K Poulose
2026-03-25 11:32 ` Suzuki K Poulose
2026-03-26 0:48 ` Gavin Shan
2026-03-26 11:22 ` Suzuki K Poulose
2026-03-25 4:07 ` Gavin Shan
2026-03-25 10:19 ` Suzuki K Poulose
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