Re: [PATCH 06/10] KVM: arm64: hide MOPS from guests

[PATCH 00/10] arm64: support Armv8.8 memcpy instructions in userspace · Kristina Martsenko <hidden> · 2023-02-16
[PATCH 01/10] KVM: arm64: initialize HCRX_EL2 · Kristina Martsenko <hidden> · 2023-02-16
Re: [PATCH 01/10] KVM: arm64: initialize HCRX_EL2 · Catalin Marinas <catalin.marinas@arm.com> · 2023-03-17
[PATCH 02/10] arm64: cpufeature: detect FEAT_HCX · Kristina Martsenko <hidden> · 2023-02-16
Re: [PATCH 02/10] arm64: cpufeature: detect FEAT_HCX · Catalin Marinas <catalin.marinas@arm.com> · 2023-03-17
[PATCH 03/10] KVM: arm64: switch HCRX_EL2 between host and guest · Kristina Martsenko <hidden> · 2023-02-16
Re: [PATCH 03/10] KVM: arm64: switch HCRX_EL2 between host and guest · Mark Brown <broonie@kernel.org> · 2023-02-16
Re: [PATCH 03/10] KVM: arm64: switch HCRX_EL2 between host and guest · Kristina Martsenko <hidden> · 2023-02-22
Re: [PATCH 03/10] KVM: arm64: switch HCRX_EL2 between host and guest · Marc Zyngier <maz@kernel.org> · 2023-02-16
Re: [PATCH 03/10] KVM: arm64: switch HCRX_EL2 between host and guest · Kristina Martsenko <hidden> · 2023-02-22
[PATCH 04/10] arm64: mops: document boot requirements for MOPS · Kristina Martsenko <hidden> · 2023-02-16
Re: [PATCH 04/10] arm64: mops: document boot requirements for MOPS · Catalin Marinas <catalin.marinas@arm.com> · 2023-03-17
Re: [PATCH 04/10] arm64: mops: document boot requirements for MOPS · Kristina Martsenko <hidden> · 2023-03-24
Re: [PATCH 04/10] arm64: mops: document boot requirements for MOPS · Catalin Marinas <catalin.marinas@arm.com> · 2023-04-04
Re: [PATCH 04/10] arm64: mops: document boot requirements for MOPS · Kristina Martsenko <hidden> · 2023-04-11
[PATCH 05/10] arm64: mops: don't disable host MOPS instructions from EL2 · Kristina Martsenko <hidden> · 2023-02-16
Re: [PATCH 05/10] arm64: mops: don't disable host MOPS instructions from EL2 · Catalin Marinas <catalin.marinas@arm.com> · 2023-03-17
[PATCH 06/10] KVM: arm64: hide MOPS from guests · Kristina Martsenko <hidden> · 2023-02-16
Re: [PATCH 06/10] KVM: arm64: hide MOPS from guests · Catalin Marinas <catalin.marinas@arm.com> · 2023-03-17
[PATCH 07/10] arm64: mops: handle MOPS exceptions · Kristina Martsenko <hidden> · 2023-02-16
Re: [PATCH 07/10] arm64: mops: handle MOPS exceptions · Catalin Marinas <catalin.marinas@arm.com> · 2023-03-17
[PATCH 08/10] arm64: mops: handle single stepping after MOPS exception · Kristina Martsenko <hidden> · 2023-02-16
Re: [PATCH 08/10] arm64: mops: handle single stepping after MOPS exception · Catalin Marinas <catalin.marinas@arm.com> · 2023-03-17
[PATCH 09/10] arm64: mops: detect and enable FEAT_MOPS · Kristina Martsenko <hidden> · 2023-02-16
Re: [PATCH 09/10] arm64: mops: detect and enable FEAT_MOPS · Mark Brown <broonie@kernel.org> · 2023-02-16
Re: [PATCH 09/10] arm64: mops: detect and enable FEAT_MOPS · Catalin Marinas <catalin.marinas@arm.com> · 2023-03-17
[PATCH 10/10] arm64: mops: allow disabling MOPS from the kernel command line · Kristina Martsenko <hidden> · 2023-02-16
Re: [PATCH 10/10] arm64: mops: allow disabling MOPS from the kernel command line · Catalin Marinas <catalin.marinas@arm.com> · 2023-03-17

From: Catalin Marinas <catalin.marinas@arm.com>
Date: 2023-03-17 15:10:53
Also in: kvmarm, lkml

On Thu, Feb 16, 2023 at 04:00:08PM +0000, Kristina Martsenko wrote:

As FEAT_MOPS is not supported in guests yet, hide it from the ID
registers for guests.

The MOPS instructions are UNDEFINED in guests as HCRX_EL2.MSCEn is not
set in HCRX_GUEST_FLAGS, and will take an exception to EL1 if executed.

Signed-off-by: Kristina Martsenko <redacted>

Acked-by: Catalin Marinas <catalin.marinas@arm.com>

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