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author | David Woodhouse <dwmw@amazon.co.uk> | 2021-11-21 12:54:40 +0000 |
---|---|---|
committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-12-09 12:55:52 -0500 |
commit | dc70ec217cec504e6f8fee8fd91bf5c118af05f2 (patch) | |
tree | 4f7aba57eed16fec454bc5bc255c75919799dd9e /virt/kvm/kvm_main.c | |
parent | 45af1bb99b72e36c16714390a8a3c9445e432938 (diff) | |
download | linux-stable-dc70ec217cec504e6f8fee8fd91bf5c118af05f2.tar.gz linux-stable-dc70ec217cec504e6f8fee8fd91bf5c118af05f2.tar.bz2 linux-stable-dc70ec217cec504e6f8fee8fd91bf5c118af05f2.zip |
KVM: Introduce CONFIG_HAVE_KVM_DIRTY_RING
I'd like to make the build include dirty_ring.c based on whether the
arch wants it or not. That's a whole lot simpler if there's a config
symbol instead of doing it implicitly on KVM_DIRTY_LOG_PAGE_OFFSET
being set to something non-zero.
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Message-Id: <20211121125451.9489-2-dwmw2@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'virt/kvm/kvm_main.c')
-rw-r--r-- | virt/kvm/kvm_main.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index f3acff708bf5..b0f7e6eb00ff 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -3600,7 +3600,7 @@ EXPORT_SYMBOL_GPL(kvm_vcpu_on_spin); static bool kvm_page_in_dirty_ring(struct kvm *kvm, unsigned long pgoff) { -#if KVM_DIRTY_LOG_PAGE_OFFSET > 0 +#ifdef CONFIG_HAVE_KVM_DIRTY_RING return (pgoff >= KVM_DIRTY_LOG_PAGE_OFFSET) && (pgoff < KVM_DIRTY_LOG_PAGE_OFFSET + kvm->dirty_ring_size / PAGE_SIZE); @@ -4305,7 +4305,7 @@ static long kvm_vm_ioctl_check_extension_generic(struct kvm *kvm, long arg) case KVM_CAP_NR_MEMSLOTS: return KVM_USER_MEM_SLOTS; case KVM_CAP_DIRTY_LOG_RING: -#if KVM_DIRTY_LOG_PAGE_OFFSET > 0 +#ifdef CONFIG_HAVE_KVM_DIRTY_RING return KVM_DIRTY_RING_MAX_ENTRIES * sizeof(struct kvm_dirty_gfn); #else return 0; |