[GIT,PULL] KVM/arm fixes for 5.7, take #1

Pull-request

git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-fixes-5.7-1

Message

Marc Zyngier April 23, 2020, 3:40 p.m. UTC

Hi Paolo,

Here is a bunch of fixes for the next -rc, focusing on the PSCI
implementation (spec conformance), and the usual vGIC patches
(preventing userspace from messing with the HW state and plugging a
couple of memory leaks).

Please pull,

	M.

The following changes since commit 8f3d9f354286745c751374f5f1fcafee6b3f3136:

  Linux 5.7-rc1 (2020-04-12 12:35:55 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-fixes-5.7-1

for you to fetch changes up to 446c0768f5509793a0e527a439d4866b24707b0e:

  Merge branch 'kvm-arm64/vgic-fixes-5.7' into kvmarm-master/master (2020-04-23 16:27:33 +0100)

----------------------------------------------------------------
KVM/arm fixes for Linux 5.7, take #1

- Prevent the userspace API from interacting directly with the HW
  stage of the virtual GIC
- Fix a couple of vGIC memory leaks
- Tighten the rules around the use of the 32bit PSCI functions
  for 64bit guest, as well as the opposite situation (matches the
  specification)

----------------------------------------------------------------
Marc Zyngier (8):
      KVM: arm: vgic: Fix limit condition when writing to GICD_I[CS]ACTIVER
      KVM: arm64: PSCI: Narrow input registers when using 32bit functions
      KVM: arm64: PSCI: Forbid 64bit functions for 32bit guests
      KVM: arm: vgic: Synchronize the whole guest on GIC{D,R}_I{S,C}ACTIVER read
      KVM: arm: vgic: Only use the virtual state when userspace accesses enable bits
      KVM: arm: vgic-v2: Only use the virtual state when userspace accesses pending bits
      Merge branch 'kvm-arm64/psci-fixes-5.7' into kvmarm-master/master
      Merge branch 'kvm-arm64/vgic-fixes-5.7' into kvmarm-master/master

Zenghui Yu (2):
      KVM: arm64: vgic-v3: Retire all pending LPIs on vcpu destroy
      KVM: arm64: vgic-its: Fix memory leak on the error path of vgic_add_lpi()

 virt/kvm/arm/psci.c              |  40 +++++++
 virt/kvm/arm/vgic/vgic-init.c    |  10 +-
 virt/kvm/arm/vgic/vgic-its.c     |  11 +-
 virt/kvm/arm/vgic/vgic-mmio-v2.c |  16 +--
 virt/kvm/arm/vgic/vgic-mmio-v3.c |  28 ++---
 virt/kvm/arm/vgic/vgic-mmio.c    | 228 +++++++++++++++++++++++++++++----------
 virt/kvm/arm/vgic/vgic-mmio.h    |  19 ++++
 7 files changed, 272 insertions(+), 80 deletions(-)