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From: David Brazdil <dbrazdil@google.com>
To: Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	James Morse <james.morse@arm.com>,
	Julien Thierry <julien.thierry.kdev@gmail.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: kvmarm@lists.cs.columbia.edu,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, android-kvm@google.com,
	kernel-team@android.com, David Brazdil <dbrazdil@google.com>
Subject: [PATCH 0/2] Unify non-VHE ASLR features behind CONFIG_RANDOMIZE_BASE
Date: Tue, 21 Jul 2020 10:44:43 +0100	[thread overview]
Message-ID: <20200721094445.82184-1-dbrazdil@google.com> (raw)

There is currently no way to disable nVHE ASLR, e.g. for debugging, so the
first patch in this series makes it conditional on RANDOMIZE_BASE, same as
KASLR. Note that the 'nokaslr' command line flag has no effect here.

Second patch unifies the HARDEN_EL2_VECTORS errate for A57 and A72 behind
the same Kconfig for simplicity. Happy to make it just depend on
RANDOMIZE_BASE if having an option to keep randomization on but hardenning
off is preferred.

David Brazdil (2):
  KVM: arm64: Make nVHE ASLR conditional on RANDOMIZE_BASE
  KVM: arm64: Substitute RANDOMIZE_BASE for HARDEN_EL2_VECTORS

 arch/arm64/Kconfig             | 16 ----------------
 arch/arm64/include/asm/mmu.h   |  6 ++----
 arch/arm64/kernel/cpu_errata.c |  4 ++--
 arch/arm64/kvm/Kconfig         |  2 +-
 arch/arm64/kvm/va_layout.c     |  2 +-
 5 files changed, 6 insertions(+), 24 deletions(-)

-- 
2.27.0


WARNING: multiple messages have this Message-ID (diff)
From: David Brazdil <dbrazdil@google.com>
To: Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	James Morse <james.morse@arm.com>,
	Julien Thierry <julien.thierry.kdev@gmail.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: android-kvm@google.com, linux-kernel@vger.kernel.org,
	kernel-team@android.com, kvmarm@lists.cs.columbia.edu,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/2] Unify non-VHE ASLR features behind CONFIG_RANDOMIZE_BASE
Date: Tue, 21 Jul 2020 10:44:43 +0100	[thread overview]
Message-ID: <20200721094445.82184-1-dbrazdil@google.com> (raw)

There is currently no way to disable nVHE ASLR, e.g. for debugging, so the
first patch in this series makes it conditional on RANDOMIZE_BASE, same as
KASLR. Note that the 'nokaslr' command line flag has no effect here.

Second patch unifies the HARDEN_EL2_VECTORS errate for A57 and A72 behind
the same Kconfig for simplicity. Happy to make it just depend on
RANDOMIZE_BASE if having an option to keep randomization on but hardenning
off is preferred.

David Brazdil (2):
  KVM: arm64: Make nVHE ASLR conditional on RANDOMIZE_BASE
  KVM: arm64: Substitute RANDOMIZE_BASE for HARDEN_EL2_VECTORS

 arch/arm64/Kconfig             | 16 ----------------
 arch/arm64/include/asm/mmu.h   |  6 ++----
 arch/arm64/kernel/cpu_errata.c |  4 ++--
 arch/arm64/kvm/Kconfig         |  2 +-
 arch/arm64/kvm/va_layout.c     |  2 +-
 5 files changed, 6 insertions(+), 24 deletions(-)

-- 
2.27.0

_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm

WARNING: multiple messages have this Message-ID (diff)
From: David Brazdil <dbrazdil@google.com>
To: Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	James Morse <james.morse@arm.com>,
	Julien Thierry <julien.thierry.kdev@gmail.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: android-kvm@google.com, linux-kernel@vger.kernel.org,
	David Brazdil <dbrazdil@google.com>,
	kernel-team@android.com, kvmarm@lists.cs.columbia.edu,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/2] Unify non-VHE ASLR features behind CONFIG_RANDOMIZE_BASE
Date: Tue, 21 Jul 2020 10:44:43 +0100	[thread overview]
Message-ID: <20200721094445.82184-1-dbrazdil@google.com> (raw)

There is currently no way to disable nVHE ASLR, e.g. for debugging, so the
first patch in this series makes it conditional on RANDOMIZE_BASE, same as
KASLR. Note that the 'nokaslr' command line flag has no effect here.

Second patch unifies the HARDEN_EL2_VECTORS errate for A57 and A72 behind
the same Kconfig for simplicity. Happy to make it just depend on
RANDOMIZE_BASE if having an option to keep randomization on but hardenning
off is preferred.

David Brazdil (2):
  KVM: arm64: Make nVHE ASLR conditional on RANDOMIZE_BASE
  KVM: arm64: Substitute RANDOMIZE_BASE for HARDEN_EL2_VECTORS

 arch/arm64/Kconfig             | 16 ----------------
 arch/arm64/include/asm/mmu.h   |  6 ++----
 arch/arm64/kernel/cpu_errata.c |  4 ++--
 arch/arm64/kvm/Kconfig         |  2 +-
 arch/arm64/kvm/va_layout.c     |  2 +-
 5 files changed, 6 insertions(+), 24 deletions(-)

-- 
2.27.0


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

             reply	other threads:[~2020-07-21  9:44 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-21  9:44 David Brazdil [this message]
2020-07-21  9:44 ` [PATCH 0/2] Unify non-VHE ASLR features behind CONFIG_RANDOMIZE_BASE David Brazdil
2020-07-21  9:44 ` David Brazdil
2020-07-21  9:44 ` [PATCH 1/2] KVM: arm64: Make nVHE ASLR conditional on RANDOMIZE_BASE David Brazdil
2020-07-21  9:44   ` David Brazdil
2020-07-21  9:44   ` David Brazdil
2020-07-21  9:44 ` [PATCH 2/2] KVM: arm64: Substitute RANDOMIZE_BASE for HARDEN_EL2_VECTORS David Brazdil
2020-07-21  9:44   ` David Brazdil
2020-07-21  9:44   ` David Brazdil
2020-07-28 11:04 ` [PATCH 0/2] Unify non-VHE ASLR features behind CONFIG_RANDOMIZE_BASE Marc Zyngier
2020-07-28 11:04   ` Marc Zyngier
2020-07-28 11:04   ` Marc Zyngier

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