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authorPeter Xu <peterx@redhat.com>2018-08-22 15:20:00 +0800
committerPaolo Bonzini <pbonzini@redhat.com>2018-08-22 16:48:39 +0200
commit3b4cd0ff5407c14900bcda7ea4aeb43a65620deb (patch)
tree5d7368ac31741a2c026ba5e17cea582630795507 /virt
parentaee41be5933fdd1cd6fbd80b31954585e3520d98 (diff)
kvm: selftest: add dirty logging test
Test KVM dirty logging functionality. The test creates a standalone memory slot to test tracking the dirty pages since we can't really write to the default memory slot which still contains the guest ELF image. We have two threads running during the test: (1) the vcpu thread continuously dirties random guest pages by writting a iteration number to the first 8 bytes of the page (2) the host thread continuously fetches dirty logs for the testing memory region and verify each single bit of the dirty bitmap by checking against the values written onto the page Note that since the guest cannot calls the general userspace APIs like random(), it depends on the host to provide random numbers for the page indexes to dirty. Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'virt')
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