Re: [PATCH v5 06/26] arm64/sve: Check SVE virtualisability

[PATCH v5 00/26] KVM: arm64: SVE guest support · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
[PATCH v5 04/26] KVM: arm64: Refactor kvm_arm_num_regs() for easier maintenance · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
[PATCH v5 01/26] KVM: Documentation: Document arm64 core registers in detail · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
Re: [PATCH v5 01/26] KVM: Documentation: Document arm64 core registers in detail · Julien Grall <hidden> · 2019-02-21
Re: [PATCH v5 01/26] KVM: Documentation: Document arm64 core registers in detail · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
Re: [PATCH v5 01/26] KVM: Documentation: Document arm64 core registers in detail · Peter Maydell <hidden> · 2019-02-21
[PATCH v5 02/26] arm64: fpsimd: Always set TIF_FOREIGN_FPSTATE on task state flush · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
Re: [PATCH v5 02/26] arm64: fpsimd: Always set TIF_FOREIGN_FPSTATE on task state flush · Julien Grall <hidden> · 2019-02-21
Re: [PATCH v5 02/26] arm64: fpsimd: Always set TIF_FOREIGN_FPSTATE on task state flush · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
Re: [PATCH v5 02/26] arm64: fpsimd: Always set TIF_FOREIGN_FPSTATE on task state flush · Julien Grall <hidden> · 2019-02-26
[PATCH v5 15/26] KVM: Allow 2048-bit register access via ioctl interface · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
[PATCH v5 06/26] arm64/sve: Check SVE virtualisability · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
Re: [PATCH v5 06/26] arm64/sve: Check SVE virtualisability · Julien Thierry <hidden> · 2019-02-20
Re: [PATCH v5 06/26] arm64/sve: Check SVE virtualisability · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
Re: [PATCH v5 06/26] arm64/sve: Check SVE virtualisability · Julien Thierry <hidden> · 2019-03-01
Re: [PATCH v5 06/26] arm64/sve: Check SVE virtualisability · Dave Martin <Dave.Martin@arm.com> · 2019-03-01
Re: [PATCH v5 06/26] arm64/sve: Check SVE virtualisability · Julien Grall <hidden> · 2019-02-21
Re: [PATCH v5 06/26] arm64/sve: Check SVE virtualisability · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
Re: [PATCH v5 06/26] arm64/sve: Check SVE virtualisability · Julien Grall <hidden> · 2019-02-26
[PATCH v5 12/26] KVM: arm64: Support runtime sysreg visibility filtering · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
Re: [PATCH v5 12/26] KVM: arm64: Support runtime sysreg visibility filtering · Julien Thierry <hidden> · 2019-02-20
Re: [PATCH v5 12/26] KVM: arm64: Support runtime sysreg visibility filtering · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
Re: [PATCH v5 12/26] KVM: arm64: Support runtime sysreg visibility filtering · Mark Rutland <mark.rutland@arm.com> · 2019-02-20
Re: [PATCH v5 12/26] KVM: arm64: Support runtime sysreg visibility filtering · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
[PATCH v5 13/26] KVM: arm64/sve: System register context switch and access support · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
Re: [PATCH v5 13/26] KVM: arm64/sve: System register context switch and access support · Julien Thierry <hidden> · 2019-02-20
Re: [PATCH v5 13/26] KVM: arm64/sve: System register context switch and access support · Julien Grall <hidden> · 2019-02-26
Re: [PATCH v5 13/26] KVM: arm64/sve: System register context switch and access support · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
Re: [PATCH v5 13/26] KVM: arm64/sve: System register context switch and access support · Julien Grall <hidden> · 2019-02-27
Re: [PATCH v5 13/26] KVM: arm64/sve: System register context switch and access support · Dave Martin <Dave.Martin@arm.com> · 2019-02-27
Re: [PATCH v5 13/26] KVM: arm64/sve: System register context switch and access support · Julien Grall <hidden> · 2019-02-27
Re: [PATCH v5 13/26] KVM: arm64/sve: System register context switch and access support · Dave Martin <Dave.Martin@arm.com> · 2019-02-27
[PATCH v5 16/26] KVM: arm64: Add missing #include of <linux/string.h> in guest.c · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
[PATCH v5 03/26] KVM: arm64: Delete orphaned declaration for __fpsimd_enabled() · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
[PATCH v5 23/26] KVM: arm64/sve: Allow userspace to enable SVE for vcpus · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
Re: [PATCH v5 23/26] KVM: arm64/sve: Allow userspace to enable SVE for vcpus · Julien Thierry <hidden> · 2019-02-22
Re: [PATCH v5 23/26] KVM: arm64/sve: Allow userspace to enable SVE for vcpus · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
[PATCH v5 10/26] KVM: arm64: Propagate vcpu into read_id_reg() · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
[PATCH v5 21/26] KVM: arm/arm64: Add hook to finalize the vcpu configuration · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
[PATCH v5 11/26] KVM: arm64: Extend reset_unknown() to handle mixed RES0/UNKNOWN registers · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
Re: [PATCH v5 11/26] KVM: arm64: Extend reset_unknown() to handle mixed RES0/UNKNOWN registers · Julien Thierry <hidden> · 2019-02-20
Re: [PATCH v5 11/26] KVM: arm64: Extend reset_unknown() to handle mixed RES0/UNKNOWN registers · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
Re: [PATCH v5 11/26] KVM: arm64: Extend reset_unknown() to handle mixed RES0/UNKNOWN registers · Julien Grall <hidden> · 2019-02-22
[PATCH v5 19/26] KVM: arm64: Enumerate SVE register indices for KVM_GET_REG_LIST · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
Re: [PATCH v5 19/26] KVM: arm64: Enumerate SVE register indices for KVM_GET_REG_LIST · Julien Thierry <hidden> · 2019-02-21
[PATCH v5 22/26] KVM: arm64/sve: Add pseudo-register for the guest's vector lengths · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
Re: [PATCH v5 22/26] KVM: arm64/sve: Add pseudo-register for the guest's vector lengths · Julien Thierry <hidden> · 2019-02-21
Re: [PATCH v5 22/26] KVM: arm64/sve: Add pseudo-register for the guest's vector lengths · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
Re: [PATCH v5 22/26] KVM: arm64/sve: Add pseudo-register for the guest's vector lengths · Julien Thierry <hidden> · 2019-03-01
Re: [PATCH v5 22/26] KVM: arm64/sve: Add pseudo-register for the guest's vector lengths · Dave Martin <Dave.Martin@arm.com> · 2019-03-01
Re: [PATCH v5 22/26] KVM: arm64/sve: Add pseudo-register for the guest's vector lengths · Marc Zyngier <hidden> · 2019-03-07
Re: [PATCH v5 22/26] KVM: arm64/sve: Add pseudo-register for the guest's vector lengths · Dave Martin <Dave.Martin@arm.com> · 2019-03-07
[PATCH v5 24/26] KVM: arm64: Add a capabillity to advertise SVE support · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
Re: [PATCH v5 24/26] KVM: arm64: Add a capabillity to advertise SVE support · Julien Thierry <hidden> · 2019-02-22
Re: [PATCH v5 24/26] KVM: arm64: Add a capabillity to advertise SVE support · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
[PATCH v5 18/26] KVM: arm64/sve: Add SVE support to register access ioctl interface · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
Re: [PATCH v5 18/26] KVM: arm64/sve: Add SVE support to register access ioctl interface · Julien Thierry <hidden> · 2019-02-21
Re: [PATCH v5 18/26] KVM: arm64/sve: Add SVE support to register access ioctl interface · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
Re: [PATCH v5 18/26] KVM: arm64/sve: Add SVE support to register access ioctl interface · Julien Thierry <hidden> · 2019-03-01
Re: [PATCH v5 18/26] KVM: arm64/sve: Add SVE support to register access ioctl interface · Dave Martin <Dave.Martin@arm.com> · 2019-03-01
[PATCH v5 05/26] KVM: arm64: Add missing #include of <linux/bitmap.h> to kvm_host.h · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
Re: [PATCH v5 05/26] KVM: arm64: Add missing #include of <linux/bitmap.h> to kvm_host.h · Mark Rutland <mark.rutland@arm.com> · 2019-02-20
Re: [PATCH v5 05/26] KVM: arm64: Add missing #include of <linux/bitmap.h> to kvm_host.h · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
Re: [PATCH v5 05/26] KVM: arm64: Add missing #include of <linux/bitmap.h> to kvm_host.h · Mark Rutland <mark.rutland@arm.com> · 2019-02-26
Re: [PATCH v5 05/26] KVM: arm64: Add missing #include of <linux/bitmap.h> to kvm_host.h · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
Re: [PATCH v5 05/26] KVM: arm64: Add missing #include of <linux/bitmap.h> to kvm_host.h · Mark Rutland <mark.rutland@arm.com> · 2019-02-26
[PATCH v5 07/26] arm64/sve: Clarify role of the VQ map maintenance functions · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
Re: [PATCH v5 07/26] arm64/sve: Clarify role of the VQ map maintenance functions · Julien Thierry <hidden> · 2019-02-20
Re: [PATCH v5 07/26] arm64/sve: Clarify role of the VQ map maintenance functions · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
Re: [PATCH v5 07/26] arm64/sve: Clarify role of the VQ map maintenance functions · Julien Grall <hidden> · 2019-02-21
Re: [PATCH v5 07/26] arm64/sve: Clarify role of the VQ map maintenance functions · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
[PATCH v5 08/26] arm64/sve: Enable SVE state tracking for non-task contexts · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
Re: [PATCH v5 08/26] arm64/sve: Enable SVE state tracking for non-task contexts · Julien Grall <hidden> · 2019-02-22
Re: [PATCH v5 08/26] arm64/sve: Enable SVE state tracking for non-task contexts · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
Re: [PATCH v5 08/26] arm64/sve: Enable SVE state tracking for non-task contexts · Julien Grall <hidden> · 2019-02-26
Re: [PATCH v5 08/26] arm64/sve: Enable SVE state tracking for non-task contexts · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
Re: [PATCH v5 08/26] arm64/sve: Enable SVE state tracking for non-task contexts · Julien Grall <hidden> · 2019-02-26
Re: [PATCH v5 08/26] arm64/sve: Enable SVE state tracking for non-task contexts · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
[PATCH v5 09/26] KVM: arm64: Add a vcpu flag to control SVE visibility for the guest · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
[PATCH v5 20/26] arm64/sve: In-kernel vector length availability query interface · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
[PATCH v5 26/26] KVM: arm64/sve: Document KVM API extensions for SVE · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
[PATCH v5 17/26] KVM: arm64: Reject ioctl access to FPSIMD V-regs on SVE vcpus · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
Re: [PATCH v5 17/26] KVM: arm64: Reject ioctl access to FPSIMD V-regs on SVE vcpus · Julien Thierry <hidden> · 2019-02-21
Re: [PATCH v5 17/26] KVM: arm64: Reject ioctl access to FPSIMD V-regs on SVE vcpus · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
[PATCH v5 25/26] KVM: Document errors for KVM_GET_ONE_REG and KVM_SET_ONE_REG · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
[PATCH v5 14/26] KVM: arm64/sve: Context switch the SVE registers · Dave Martin <Dave.Martin@arm.com> · 2019-02-18
Re: [PATCH v5 14/26] KVM: arm64/sve: Context switch the SVE registers · Mark Rutland <mark.rutland@arm.com> · 2019-02-20
Re: [PATCH v5 14/26] KVM: arm64/sve: Context switch the SVE registers · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
Re: [PATCH v5 14/26] KVM: arm64/sve: Context switch the SVE registers · Julien Thierry <hidden> · 2019-02-20
Re: [PATCH v5 14/26] KVM: arm64/sve: Context switch the SVE registers · Dave Martin <Dave.Martin@arm.com> · 2019-02-26
Re: [PATCH v5 14/26] KVM: arm64/sve: Context switch the SVE registers · Julien Grall <hidden> · 2019-02-26
Re: [PATCH v5 14/26] KVM: arm64/sve: Context switch the SVE registers · Dave Martin <Dave.Martin@arm.com> · 2019-02-27
Re: [PATCH v5 00/26] KVM: arm64: SVE guest support · Dave Martin <Dave.Martin@arm.com> · 2019-02-20
RE: [PATCH v5 00/26] KVM: arm64: SVE guest support · Zhang, Lei <hidden> · 2019-03-03
Re: [PATCH v5 00/26] KVM: arm64: SVE guest support · Dave Martin <Dave.Martin@arm.com> · 2019-03-05
RE: [PATCH v5 00/26] KVM: arm64: SVE guest support · Zhang, Lei <hidden> · 2019-03-08

From: Julien Grall <hidden>
Date: 2019-02-21 13:36:40
Also in: kvmarm

Hi Dave,

On 18/02/2019 19:52, Dave Martin wrote:

+	/*
+	 * Mismatches above sve_max_virtualisable_vl are fine, since
+	 * no guest is allowed to configure ZCR_EL2.LEN to exceed this:
+	 */
+	if (sve_vl_from_vq(bit_to_vq(b)) <= sve_max_virtualisable_vl) {
+		pr_warn("SVE: cpu%d: Unsupported vector length(s) present\n",
+			smp_processor_id());

Would it be worth to print the unsupported vector length?

Cheers,

-- 
Julien Grall

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