linux-kernel - [PATCH 6.6 0/8] KVM: arm64: Backport of SVE fixes to v6.6

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Message-Id: <20250321-stable-sve-6-6-v1-0-0b3a6a14ea53@kernel.org>
Date: Fri, 21 Mar 2025 00:16:00 +0000
From: Mark Brown <broonie@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Marc Zyngier <maz@...nel.org>, Oliver Upton <oliver.upton@...ux.dev>, 
 James Morse <james.morse@....com>, 
 Suzuki K Poulose <suzuki.poulose@....com>, 
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev, 
 linux-kernel@...r.kernel.org, stable@...r.kernel.org, 
 Mark Brown <broonie@...nel.org>, Fuad Tabba <tabba@...gle.com>, 
 James Clark <james.clark@...aro.org>, Mark Rutland <mark.rutland@....com>, 
 Eric Auger <eauger@...hat.com>, Wilco Dijkstra <wilco.dijkstra@....com>, 
 Eric Auger <eric.auger@...hat.com>, Florian Weimer <fweimer@...hat.com>, 
 Jeremy Linton <jeremy.linton@....com>, Paolo Bonzini <pbonzini@...hat.com>
Subject: [PATCH 6.6 0/8] KVM: arm64: Backport of SVE fixes to v6.6

This series backports some recent fixes for SVE/KVM interactions from
Mark Rutland to v6.6.

Signed-off-by: Mark Brown <broonie@...nel.org>
---
Fuad Tabba (1):
      KVM: arm64: Calculate cptr_el2 traps on activating traps

Mark Rutland (7):
      KVM: arm64: Unconditionally save+flush host FPSIMD/SVE/SME state
      KVM: arm64: Remove host FPSIMD saving for non-protected KVM
      KVM: arm64: Remove VHE host restore of CPACR_EL1.ZEN
      KVM: arm64: Remove VHE host restore of CPACR_EL1.SMEN
      KVM: arm64: Refactor exit handlers
      KVM: arm64: Mark some header functions as inline
      KVM: arm64: Eagerly switch ZCR_EL{1,2}

 arch/arm64/include/asm/kvm_host.h       |   7 +--
 arch/arm64/include/asm/kvm_hyp.h        |   1 +
 arch/arm64/kernel/fpsimd.c              |  25 --------
 arch/arm64/kvm/arm.c                    |   1 -
 arch/arm64/kvm/fpsimd.c                 |  89 +++++----------------------
 arch/arm64/kvm/hyp/entry.S              |   5 ++
 arch/arm64/kvm/hyp/include/hyp/switch.h | 106 +++++++++++++++++++++-----------
 arch/arm64/kvm/hyp/nvhe/hyp-main.c      |  15 +----
 arch/arm64/kvm/hyp/nvhe/pkvm.c          |  29 +--------
 arch/arm64/kvm/hyp/nvhe/switch.c        | 106 ++++++++++++++++++++++----------
 arch/arm64/kvm/hyp/vhe/switch.c         |  13 ++--
 arch/arm64/kvm/reset.c                  |   3 +
 12 files changed, 182 insertions(+), 218 deletions(-)
---
base-commit: 594a1dd5138a6bbaa1697e5648cce23d2520eba9
change-id: 20250227-stable-sve-6-6-e795d85262b9

Best regards,
-- 
Mark Brown <broonie@...nel.org>