Merge branch kvm-arm64/pkvm-fixed-features-prologue into kvmarm-master/next

* kvm-arm64/pkvm-fixed-features-prologue:
  : Rework a bunch of common infrastructure as a prologue
  : to Fuad Tabba's protected VM fixed feature series.
  KVM: arm64: Upgrade trace_kvm_arm_set_dreg32() to 64bit
  KVM: arm64: Add config register bit definitions
  KVM: arm64: Add feature register flag definitions
  KVM: arm64: Track value of cptr_el2 in struct kvm_vcpu_arch
  KVM: arm64: Keep mdcr_el2's value as set by __init_el2_debug
  KVM: arm64: Restore mdcr_el2 from vcpu
  KVM: arm64: Refactor sys_regs.h,c for nVHE reuse
  KVM: arm64: Fix names of config register fields
  KVM: arm64: MDCR_EL2 is a 64-bit register
  KVM: arm64: Remove trailing whitespace in comment
  KVM: arm64: placeholder to check if VM is protected

Signed-off-by: Marc Zyngier <maz@kernel.org>

1 files changed, 11 insertions, 2 deletions

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index bdab1754c71f..f8be56d5342b 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -286,9 +286,13 @@ struct kvm_vcpu_arch {
 	/* Stage 2 paging state used by the hardware on next switch */
 	struct kvm_s2_mmu *hw_mmu;
 
-	/* HYP configuration */
+	/* Values of trap registers for the guest. */
 	u64 hcr_el2;
-	u32 mdcr_el2;
+	u64 mdcr_el2;
+	u64 cptr_el2;
+
+	/* Values of trap registers for the host before guest entry. */
+	u64 mdcr_el2_host;
 
 	/* Exception Information */
 	struct kvm_vcpu_fault_info fault;
@@ -771,6 +775,11 @@ void kvm_arch_free_vm(struct kvm *kvm);
 
 int kvm_arm_setup_stage2(struct kvm *kvm, unsigned long type);
 
+static inline bool kvm_vm_is_protected(struct kvm *kvm)
+{
+	return false;
+}
+
 int kvm_arm_vcpu_finalize(struct kvm_vcpu *vcpu, int feature);
 bool kvm_arm_vcpu_is_finalized(struct kvm_vcpu *vcpu);