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| author | Simon Guo <wei.guo.simon@gmail.com> | 2018-05-23 15:02:04 +0800 |
|---|---|---|
| committer | Paul Mackerras <paulus@ozlabs.org> | 2018-06-01 10:30:23 +1000 |
| commit | e32c53d1cf0022af180548474f4c29c189d37d93 (patch) | |
| tree | 63d9d8940dbb32f5ae175d3f96e091c45e6ab600 /arch/powerpc/include | |
| parent | 03c81682a90b3fc3434d3e33f3f4c7f1f39d65cd (diff) | |
| download | linux-e32c53d1cf0022af180548474f4c29c189d37d93.tar.gz | |
KVM: PPC: Book3S PR: Add emulation for trechkpt.
This patch adds host emulation when guest PR KVM executes "trechkpt.",
which is a privileged instruction and will trap into host.
We firstly copy vcpu ongoing content into vcpu tm checkpoint
content, then perform kvmppc_restore_tm_pr() to do trechkpt.
with updated vcpu tm checkpoint values.
Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_book3s.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index c1cea8222d51..2940de7bac08 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -262,10 +262,12 @@ extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu); #ifdef CONFIG_PPC_TRANSACTIONAL_MEM void kvmppc_save_tm_pr(struct kvm_vcpu *vcpu); void kvmppc_restore_tm_pr(struct kvm_vcpu *vcpu); +void kvmppc_save_tm_sprs(struct kvm_vcpu *vcpu); void kvmppc_restore_tm_sprs(struct kvm_vcpu *vcpu); #else static inline void kvmppc_save_tm_pr(struct kvm_vcpu *vcpu) {} static inline void kvmppc_restore_tm_pr(struct kvm_vcpu *vcpu) {} +static inline void kvmppc_save_tm_sprs(struct kvm_vcpu *vcpu) {} static inline void kvmppc_restore_tm_sprs(struct kvm_vcpu *vcpu) {} #endif |