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| author | Maxim Levitsky <mlevitsk@redhat.com> | 2021-06-07 12:02:02 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-06-17 20:09:47 +0300 |
| commit | 6dba940352038b56db9b591b172fb2ec76a5fd5e (patch) | |
| tree | be53102bf5e3eed3c5ee2056a3932ffbffbbc1ae /arch/x86/kvm/kvm_cache_regs.h | |
| parent | 329675dde93c6f30009dc413197bdf2b971f1e5e (diff) | |
| download | linux-6dba940352038b56db9b591b172fb2ec76a5fd5e.tar.xz | |
KVM: x86: Introduce KVM_GET_SREGS2 / KVM_SET_SREGS2
This is a new version of KVM_GET_SREGS / KVM_SET_SREGS.
It has the following changes:
* Has flags for future extensions
* Has vcpu's PDPTRs, allowing to save/restore them on migration.
* Lacks obsolete interrupt bitmap (done now via KVM_SET_VCPU_EVENTS)
New capability, KVM_CAP_SREGS2 is added to signal
the userspace of this ioctl.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210607090203.133058-8-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/kvm_cache_regs.h')
| -rw-r--r-- | arch/x86/kvm/kvm_cache_regs.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kvm/kvm_cache_regs.h b/arch/x86/kvm/kvm_cache_regs.h index 296d67f689ef..90e1ffdc05b7 100644 --- a/arch/x86/kvm/kvm_cache_regs.h +++ b/arch/x86/kvm/kvm_cache_regs.h @@ -125,6 +125,11 @@ static inline u64 kvm_pdptr_read(struct kvm_vcpu *vcpu, int index) return vcpu->arch.walk_mmu->pdptrs[index]; } +static inline void kvm_pdptr_write(struct kvm_vcpu *vcpu, int index, u64 value) +{ + vcpu->arch.walk_mmu->pdptrs[index] = value; +} + static inline ulong kvm_read_cr0_bits(struct kvm_vcpu *vcpu, ulong mask) { ulong tmask = mask & KVM_POSSIBLE_CR0_GUEST_BITS; |