From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon, 16 Sep 2024 05:38:18 +0000 (+0200)
Subject: Merge tag 'for-linus-non-x86' of git://git.kernel.org/pub/scm/virt/kvm/kvm
X-Git-Url: https://git.dujemihanovic.xyz/?a=commitdiff_plain;h=64dd3b6a79f0907d36de481b0f15fab323a53e5a;p=linux.git

Merge tag 'for-linus-non-x86' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm updates from Paolo Bonzini:
 "These are the non-x86 changes (mostly ARM, as is usually the case).
  The generic and x86 changes will come later"

  ARM:

   - New Stage-2 page table dumper, reusing the main ptdump
     infrastructure

   - FP8 support

   - Nested virtualization now supports the address translation
     (FEAT_ATS1A) family of instructions

   - Add selftest checks for a bunch of timer emulation corner cases

   - Fix multiple cases where KVM/arm64 doesn't correctly handle the
     guest trying to use a GICv3 that wasn't advertised

   - Remove REG_HIDDEN_USER from the sysreg infrastructure, making
     things little simpler

   - Prevent MTE tags being restored by userspace if we are actively
     logging writes, as that's a recipe for disaster

   - Correct the refcount on a page that is not considered for MTE tag
     copying (such as a device)

   - When walking a page table to split block mappings, synchronize only
     at the end the walk rather than on every store

   - Fix boundary check when transfering memory using FFA

   - Fix pKVM TLB invalidation, only affecting currently out of tree
     code but worth addressing for peace of mind

  LoongArch:

   - Revert qspinlock to test-and-set simple lock on VM.

   - Add Loongson Binary Translation extension support.

   - Add PMU support for guest.

   - Enable paravirt feature control from VMM.

   - Implement function kvm_para_has_feature().

  RISC-V:

   - Fix sbiret init before forwarding to userspace

   - Don't zero-out PMU snapshot area before freeing data

   - Allow legacy PMU access from guest

   - Fix to allow hpmcounter31 from the guest"

* tag 'for-linus-non-x86' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (64 commits)
  LoongArch: KVM: Implement function kvm_para_has_feature()
  LoongArch: KVM: Enable paravirt feature control from VMM
  LoongArch: KVM: Add PMU support for guest
  KVM: arm64: Get rid of REG_HIDDEN_USER visibility qualifier
  KVM: arm64: Simplify visibility handling of AArch32 SPSR_*
  KVM: arm64: Simplify handling of CNTKCTL_EL12
  LoongArch: KVM: Add vm migration support for LBT registers
  LoongArch: KVM: Add Binary Translation extension support
  LoongArch: KVM: Add VM feature detection function
  LoongArch: Revert qspinlock to test-and-set simple lock on VM
  KVM: arm64: Register ptdump with debugfs on guest creation
  arm64: ptdump: Don't override the level when operating on the stage-2 tables
  arm64: ptdump: Use the ptdump description from a local context
  arm64: ptdump: Expose the attribute parsing functionality
  KVM: arm64: Add memory length checks and remove inline in do_ffa_mem_xfer
  KVM: arm64: Move pagetable definitions to common header
  KVM: arm64: nv: Add support for FEAT_ATS1A
  KVM: arm64: nv: Plumb handling of AT S1* traps from EL2
  KVM: arm64: nv: Make AT+PAN instructions aware of FEAT_PAN3
  KVM: arm64: nv: Sanitise SCTLR_EL1.EPAN according to VM configuration
  ...
---

64dd3b6a79f0907d36de481b0f15fab323a53e5a
diff --cc arch/arm64/include/asm/kvm_host.h
index d5857452a1ec,b9ca899041db..329619c6fa96
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@@ -446,8 -446,10 +446,12 @@@ enum vcpu_sysreg 
  	GCR_EL1,	/* Tag Control Register */
  	TFSRE0_EL1,	/* Tag Fault Status Register (EL0) */
  
 +	POR_EL0,	/* Permission Overlay Register 0 (EL0) */
 +
+ 	/* FP/SIMD/SVE */
+ 	SVCR,
+ 	FPMR,
+ 
  	/* 32bit specific registers. */
  	DACR32_EL2,	/* Domain Access Control Register */
  	IFSR32_EL2,	/* Instruction Fault Status Register */