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| author | Vitaly Kuznetsov <[email protected]> | 2020-10-02 17:43:13 +0200 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2020-10-21 17:36:31 -0400 |
| commit | 66af4f5cb1ee44c41a8433877c859d4b3f922f83 (patch) | |
| tree | e95ebfb755227d3e56daec78da2d3acbb109fa60 /tools/perf/scripts/python/sctop.py | |
| parent | 8f116a6c7320ce55e8e0885b79ff3518105775b5 (diff) | |
x86/kvm: Update the comment about asynchronous page fault in exc_page_fault()
KVM was switched to interrupt-based mechanism for 'page ready' event
delivery in Linux-5.8 (see commit 2635b5c4a0e4 ("KVM: x86: interrupt based
APF 'page ready' event delivery")) and #PF (ab)use for 'page ready' event
delivery was removed. Linux guest switched to this new mechanism
exclusively in 5.9 (see commit b1d405751cd5 ("KVM: x86: Switch KVM guest to
using interrupts for page ready APF delivery")) so it is not possible to
get #PF for a 'page ready' event even when the guest is running on top
of an older KVM (APF mechanism won't be enabled). Update the comment in
exc_page_fault() to reflect the new reality.
Signed-off-by: Vitaly Kuznetsov <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/sctop.py')
0 files changed, 0 insertions, 0 deletions