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| author | Sukadev Bhattiprolu <sukadev@linux.ibm.com> | 2019-12-19 22:51:45 +0100 |
|---|---|---|
| committer | Paul Mackerras <paulus@ozlabs.org> | 2020-01-17 05:08:31 +0100 |
| commit | ce477a7a1cdfc9aaafcfd03b45bde131a88d51de (patch) | |
| tree | a36cb003548e79707a09c3e50dd99350802bc757 | |
| parent | KVM: PPC: Book3E: Replace current->mm by kvm->mm (diff) | |
| download | linux-ce477a7a1cdfc9aaafcfd03b45bde131a88d51de.tar.xz linux-ce477a7a1cdfc9aaafcfd03b45bde131a88d51de.zip | |
KVM: PPC: Add skip_page_out parameter to uvmem functions
Add 'skip_page_out' parameter to kvmppc_uvmem_drop_pages() so the
callers can specify whetheter or not to skip paging out pages. This
will be needed in a follow-on patch that implements H_SVM_INIT_ABORT
hcall.
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
| -rw-r--r-- | arch/powerpc/include/asm/kvm_book3s_uvmem.h | 4 | ||||
| -rw-r--r-- | arch/powerpc/kvm/book3s_64_mmu_radix.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv_uvmem.c | 4 |
4 files changed, 6 insertions, 6 deletions
diff --git a/arch/powerpc/include/asm/kvm_book3s_uvmem.h b/arch/powerpc/include/asm/kvm_book3s_uvmem.h index 50204e228f16..3cf8425b9838 100644 --- a/arch/powerpc/include/asm/kvm_book3s_uvmem.h +++ b/arch/powerpc/include/asm/kvm_book3s_uvmem.h @@ -20,7 +20,7 @@ unsigned long kvmppc_h_svm_init_start(struct kvm *kvm); unsigned long kvmppc_h_svm_init_done(struct kvm *kvm); int kvmppc_send_page_to_uv(struct kvm *kvm, unsigned long gfn); void kvmppc_uvmem_drop_pages(const struct kvm_memory_slot *free, - struct kvm *kvm); + struct kvm *kvm, bool skip_page_out); #else static inline int kvmppc_uvmem_init(void) { @@ -69,6 +69,6 @@ static inline int kvmppc_send_page_to_uv(struct kvm *kvm, unsigned long gfn) static inline void kvmppc_uvmem_drop_pages(const struct kvm_memory_slot *free, - struct kvm *kvm) { } + struct kvm *kvm, bool skip_page_out) { } #endif /* CONFIG_PPC_UV */ #endif /* __ASM_KVM_BOOK3S_UVMEM_H__ */ diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c index da857c8ba6e4..744dba98e5d1 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_radix.c +++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c @@ -1102,7 +1102,7 @@ void kvmppc_radix_flush_memslot(struct kvm *kvm, unsigned int shift; if (kvm->arch.secure_guest & KVMPPC_SECURE_INIT_START) - kvmppc_uvmem_drop_pages(memslot, kvm); + kvmppc_uvmem_drop_pages(memslot, kvm, true); if (kvm->arch.secure_guest & KVMPPC_SECURE_INIT_DONE) return; diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 2cf3dd8b79d2..47ffc7f1b104 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -5477,7 +5477,7 @@ static int kvmhv_svm_off(struct kvm *kvm) continue; kvm_for_each_memslot(memslot, slots) { - kvmppc_uvmem_drop_pages(memslot, kvm); + kvmppc_uvmem_drop_pages(memslot, kvm, true); uv_unregister_mem_slot(kvm->arch.lpid, memslot->id); } } diff --git a/arch/powerpc/kvm/book3s_hv_uvmem.c b/arch/powerpc/kvm/book3s_hv_uvmem.c index 2de264fc3156..ffa602a97dba 100644 --- a/arch/powerpc/kvm/book3s_hv_uvmem.c +++ b/arch/powerpc/kvm/book3s_hv_uvmem.c @@ -258,7 +258,7 @@ unsigned long kvmppc_h_svm_init_done(struct kvm *kvm) * QEMU page table with normal PTEs from newly allocated pages. */ void kvmppc_uvmem_drop_pages(const struct kvm_memory_slot *free, - struct kvm *kvm) + struct kvm *kvm, bool skip_page_out) { int i; struct kvmppc_uvmem_page_pvt *pvt; @@ -276,7 +276,7 @@ void kvmppc_uvmem_drop_pages(const struct kvm_memory_slot *free, uvmem_page = pfn_to_page(uvmem_pfn); pvt = uvmem_page->zone_device_data; - pvt->skip_page_out = true; + pvt->skip_page_out = skip_page_out; mutex_unlock(&kvm->arch.uvmem_lock); pfn = gfn_to_pfn(kvm, gfn); |