diff options
Diffstat (limited to 'Documentation/virtual/kvm/api.txt')
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 67068c47c591..64b38dfcc243 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -321,7 +321,7 @@ cpu's hardware control block. 4.8 KVM_GET_DIRTY_LOG (vm ioctl) Capability: basic -Architectures: x86 +Architectures: all Type: vm ioctl Parameters: struct kvm_dirty_log (in/out) Returns: 0 on success, -1 on error @@ -3810,7 +3810,7 @@ to I/O ports. 4.117 KVM_CLEAR_DIRTY_LOG (vm ioctl) Capability: KVM_CAP_MANUAL_DIRTY_LOG_PROTECT -Architectures: x86 +Architectures: x86, arm, arm64, mips Type: vm ioctl Parameters: struct kvm_dirty_log (in) Returns: 0 on success, -1 on error @@ -3830,8 +3830,9 @@ The ioctl clears the dirty status of pages in a memory slot, according to the bitmap that is passed in struct kvm_clear_dirty_log's dirty_bitmap field. Bit 0 of the bitmap corresponds to page "first_page" in the memory slot, and num_pages is the size in bits of the input bitmap. -Both first_page and num_pages must be a multiple of 64. For each bit -that is set in the input bitmap, the corresponding page is marked "clean" +first_page must be a multiple of 64; num_pages must also be a multiple of +64 unless first_page + num_pages is the size of the memory slot. For each +bit that is set in the input bitmap, the corresponding page is marked "clean" in KVM's dirty bitmap, and dirty tracking is re-enabled for that page (for example via write-protection, or by clearing the dirty bit in a page table entry). @@ -4799,7 +4800,7 @@ and injected exceptions. 7.18 KVM_CAP_MANUAL_DIRTY_LOG_PROTECT -Architectures: all +Architectures: x86, arm, arm64, mips Parameters: args[0] whether feature should be enabled or not With this capability enabled, KVM_GET_DIRTY_LOG will not automatically |