KVM/arm64 fixes for 5.12, take #2

Hi Paolo,

Here's the second batch of KVM/arm64 fixes for 5.12. The most notable item is the tidying up of the way we deal with the guest physical space, which had a couple of warts. The other patches address i-cache isolation between vcpus (they are supposed to be vcpu-private, but can not being so...), and a fix for a link-time issue that can occur with LTO.

Note that this time around, this pull request is on top of kvm/next, right after the patches you applied last week.

Please pull,

	M.

The following changes since commit 357ad203d45c0f9d76a8feadbd5a1c5d460c638b:

KVM: arm64: Fix range alignment when walking page tables (2021-03-06 04:18:41 -0500)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-fixes-5.12-2

for you to fetch changes up to 262b003d059c6671601a19057e9fe1a5e7f23722:

KVM: arm64: Fix exclusive limit for IPA size (2021-03-12 15:43:22 +0000)

----------------------------------------------------------------
KVM/arm64 fixes for 5.12, take #2

- Fix a couple of branches that could be impossible to resolve at link time when objects are far apart, such as with LTO
- Mandate i-cache invalidation when two vcpus are sharing a physical CPU
- Fail VM creation if the implicit IPA size isn't supported
- Don't reject memslots that reach the IPA limit without breaching it

----------------------------------------------------------------
Marc Zyngier (3):
KVM: arm64: Ensure I-cache isolation between vcpus of a same VM
KVM: arm64: Reject VM creation when the default IPA size is unsupported
KVM: arm64: Fix exclusive limit for IPA size

Sami Tolvanen (1):
KVM: arm64: Don't use cbz/adr with external symbols

 Documentation/virt/kvm/api.rst     |  3 +++
 arch/arm64/include/asm/kvm_asm.h   |  4 ++--
 arch/arm64/kvm/arm.c               |  7 ++++++-
 arch/arm64/kvm/hyp/entry.S         |  6 ++++--
 arch/arm64/kvm/hyp/nvhe/hyp-main.c |  6 +++---
 arch/arm64/kvm/hyp/nvhe/tlb.c      |  3 ++-
 arch/arm64/kvm/hyp/vhe/tlb.c       |  3 ++-
 arch/arm64/kvm/mmu.c               |  3 +--
 arch/arm64/kvm/reset.c             | 12 ++++++++----
 9 files changed, 31 insertions(+), 16 deletions(-)

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Pulled, thanks.

Paolo

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