linux-kernel - [PATCH 0/3] Fine grain sysregs allowed to trap for nested virtualization

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Message-Id: <20230913185209.32282-1-miguel.luis@oracle.com>
Date:   Wed, 13 Sep 2023 18:52:05 +0000
From:   Miguel Luis <miguel.luis@...cle.com>
To:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Marc Zyngier <maz@...nel.org>,
        Oliver Upton <oliver.upton@...ux.dev>,
        James Morse <james.morse@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Zenghui Yu <yuzenghui@...wei.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kvmarm@...ts.linux.dev
Cc:     miguel.luis@...cle.com
Subject: [PATCH 0/3] Fine grain sysregs allowed to trap for nested virtualization

The current HCR_EL2 description includes _EL1 registers that are not affected
by NV. Let's exclude them from those ranges to implement a more fine grained
approach.

Miguel Luis (3):
  arm64: Add missing _EL12 encodings
  arm64/kvm: Fine grain _EL2 system registers list that affect nested
    virtualization
  KVM: arm64: nv: Handle all _EL02 and _EL12 registers

 arch/arm64/include/asm/sysreg.h | 11 +++++
 arch/arm64/kvm/emulate-nested.c | 79 ++++++++++++++++++++++++++++-----
 2 files changed, 80 insertions(+), 10 deletions(-)

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2.39.2