[GIT PULL] KVM/arm64 fixes for 5.10, take #1

From: Marc Zyngier <maz@kernel.org>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
	Santosh Shukla <sashukla@nvidia.com>,
	Gavin Shan <gshan@redhat.com>,
	kvm@vger.kernel.org, Quentin Perret <qperret@google.com>,
	kernel-team@android.com,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	kvmarm@lists.cs.columbia.edu,
	Vladimir Murzin <vladimir.murzin@arm.com>,
	James Morse <james.morse@arm.com>,
	linux-arm-kernel@lists.infradead.org,
	David Brazdil <dbrazdil@google.com>,
	Will Deacon <will@kernel.org>, Qais Yousef <qais.yousef@arm.com>,
	Julien Thierry <julien.thierry.kdev@gmail.com>
Subject: [GIT PULL] KVM/arm64 fixes for 5.10, take #1
Date: Fri, 30 Oct 2020 16:40:05 +0000	[thread overview]
Message-ID: <20201030164017.244287-1-maz@kernel.org> (raw)

[Apologies for the spam, I appear to have forgotten to Cc the lists in
 my initial posting]

Hi Paolo,

It was good to see you (and everyone else) at KVM Forum this week!

And to celebrate, here's a first batch of fixes for KVM/arm64. A bunch
of them are addressing issues introduced by the invasive changes that
took place in the 5.10 merge window (MM, nVHE host entry). A few
others are addressing some older bugs (VFIO PTE mappings, AArch32
debug, composite huge pages), and a couple of improvements
(HYP-visible capabilities are made more robust).

Please pull,

	M.

The following changes since commit 4e5dc64c43192b4fd4c96ac150a8f013065f5f5b:

  Merge branches 'kvm-arm64/pt-new' and 'kvm-arm64/pmu-5.9' into kvmarm-master/next (2020-10-02 09:25:55 +0100)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-fixes-5.10-1

for you to fetch changes up to 22f553842b14a1289c088a79a67fb479d3fa2a4e:

  KVM: arm64: Handle Asymmetric AArch32 systems (2020-10-30 16:06:22 +0000)

----------------------------------------------------------------
KVM/arm64 fixes for 5.10, take #1

- Force PTE mapping on device pages provided via VFIO
- Fix detection of cacheable mapping at S2
- Fallback to PMD/PTE mappings for composite huge pages
- Fix accounting of Stage-2 PGD allocation
- Fix AArch32 handling of some of the debug registers
- Simplify host HYP entry
- Fix stray pointer conversion on nVHE TLB invalidation
- Fix initialization of the nVHE code
- Simplify handling of capabilities exposed to HYP
- Nuke VCPUs caught using a forbidden AArch32 EL0

----------------------------------------------------------------
Gavin Shan (1):
      KVM: arm64: Use fallback mapping sizes for contiguous huge page sizes

Marc Zyngier (4):
      KVM: arm64: Don't corrupt tpidr_el2 on failed HVC call
      KVM: arm64: Remove leftover kern_hyp_va() in nVHE TLB invalidation
      KVM: arm64: Drop useless PAN setting on host EL1 to EL2 transition
      KVM: arm64: Fix AArch32 handling of DBGD{CCINT,SCRext} and DBGVCR

Mark Rutland (3):
      KVM: arm64: Factor out is_{vhe,nvhe}_hyp_code()
      arm64: cpufeature: reorder cpus_have_{const, final}_cap()
      arm64: cpufeature: upgrade hyp caps to final

Qais Yousef (1):
      KVM: arm64: Handle Asymmetric AArch32 systems

Santosh Shukla (1):
      KVM: arm64: Force PTE mapping on fault resulting in a device mapping

Will Deacon (2):
      KVM: arm64: Allocate stage-2 pgd pages with GFP_KERNEL_ACCOUNT
      KVM: arm64: Fix masks in stage2_pte_cacheable()

 arch/arm64/include/asm/cpufeature.h | 40 ++++++++++++++++++++++++++++---------
 arch/arm64/include/asm/kvm_host.h   |  1 +
 arch/arm64/include/asm/virt.h       |  9 ++++-----
 arch/arm64/kernel/image-vars.h      |  1 -
 arch/arm64/kvm/arm.c                | 19 ++++++++++++++++++
 arch/arm64/kvm/hyp/nvhe/host.S      |  2 --
 arch/arm64/kvm/hyp/nvhe/hyp-init.S  | 23 ++++++++++++++-------
 arch/arm64/kvm/hyp/nvhe/tlb.c       |  1 -
 arch/arm64/kvm/hyp/pgtable.c        |  4 ++--
 arch/arm64/kvm/mmu.c                | 27 ++++++++++++++++++-------
 arch/arm64/kvm/sys_regs.c           |  6 +++---
 11 files changed, 96 insertions(+), 37 deletions(-)

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