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ARM fixes. There are a couple pending x86 patches but they'll have to

Browse source 
wait for next week.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "ARM fixes.  There are a couple pending x86 patches but they'll have to
  wait for next week"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: arm/arm64: vgic: Kick VCPUs when queueing already pending IRQs
  KVM: arm/arm64: vgic: Prevent access to invalid SPIs
  arm/arm64: KVM: Perform local TLB invalidation when multiplexing vcpus on a single CPU
This commit is contained in:
Linus Torvalds 2016-11-13 10:28:53 -08:00
commit e234832afb
12 changed files with 112 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

1
arch/arm64/include/asm/kvm_asm.h
View file

@ -54,6 +54,7 @@ extern char __kvm_hyp_vector[];
extern void __kvm_flush_vm_context(void);
extern void __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa);
extern void __kvm_tlb_flush_vmid(struct kvm *kvm);
extern void __kvm_tlb_flush_local_vmid(struct kvm_vcpu *vcpu);
extern int __kvm_vcpu_run(struct kvm_vcpu *vcpu);

3
arch/arm64/include/asm/kvm_host.h
View file

@ -62,6 +62,9 @@ struct kvm_arch {
/* VTTBR value associated with above pgd and vmid */
u64 vttbr;
/* The last vcpu id that ran on each physical CPU */
int __percpu *last_vcpu_ran;
/* The maximum number of vCPUs depends on the used GIC model */
int max_vcpus;

2
arch/arm64/include/asm/kvm_mmu.h
View file

@ -128,7 +128,7 @@ static inline unsigned long __kern_hyp_va(unsigned long v)
return v;
}
#define kern_hyp_va(v) (typeof(v))(__kern_hyp_va((unsigned long)(v)))
#define kern_hyp_va(v) ((typeof(v))(__kern_hyp_va((unsigned long)(v))))
/*
* We currently only support a 40bit IPA.

15
arch/arm64/kvm/hyp/tlb.c
View file

@ -64,6 +64,21 @@ void __hyp_text __kvm_tlb_flush_vmid(struct kvm *kvm)
write_sysreg(0, vttbr_el2);
}
void __hyp_text __kvm_tlb_flush_local_vmid(struct kvm_vcpu *vcpu)
{
struct kvm *kvm = kern_hyp_va(kern_hyp_va(vcpu)->kvm);
/* Switch to requested VMID */
write_sysreg(kvm->arch.vttbr, vttbr_el2);
isb();
asm volatile("tlbi vmalle1" : : );
dsb(nsh);
isb();
write_sysreg(0, vttbr_el2);
}
void __hyp_text __kvm_flush_vm_context(void)
{
dsb(ishst);