Zenghui Yu 4054adbdd2 kvm: Take into account the unaligned section size when preparing bitmap ... The kernel KVM_CLEAR_DIRTY_LOG interface has align requirement on both the start and the size of the given range of pages. We have been careful to handle the unaligned cases when performing CLEAR on one slot. But it seems that we forget to take the unaligned *size* case into account when preparing bitmap for the interface, and we may end up clearing dirty status for pages outside of [start, start + size). If the size is unaligned, let's go through the slow path to manipulate a temp bitmap for the interface so that we won't bother with those unaligned bits at the end of bitmap. I don't think this can happen in practice since the upper layer would provide us with the alignment guarantee. I'm not sure if kvm-all could rely on it. And this patch is mainly intended to address correctness of the specific algorithm used inside kvm_log_clear_one_slot(). Signed-off-by: Zenghui Yu <yuzenghui@huawei.com> Message-Id: <20201208114013.875-1-yuzenghui@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2020-12-15 12:52:05 -05:00
..
kvm-all.c	kvm: Take into account the unaligned section size when preparing bitmap	2020-12-15 12:52:05 -05:00
kvm-cpus.c	kvm: kvm_init_vcpu take Error pointer	2020-10-05 16:41:22 +02:00
kvm-cpus.h	kvm: kvm_init_vcpu take Error pointer	2020-10-05 16:41:22 +02:00
meson.build	cpus: extract out kvm-specific code to accel/kvm	2020-10-05 16:41:22 +02:00
sev-stub.c	kvm: introduce memory encryption APIs	2018-03-13 12:04:03 +01:00
trace-events	kvm: kvm_init_vcpu take Error pointer	2020-10-05 16:41:22 +02:00
trace.h	trace: switch position of headers to what Meson requires	2020-08-21 06:18:24 -04:00