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[PATCH v2 00/13] x86: assorted shadow mode adjustments
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 30 Mar 2023 13:22:52 +0200
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Tim Deegan <tim@xxxxxxx>
- Delivery-date: Thu, 30 Mar 2023 11:23:10 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
This is kind of fallout from XSA-427 investigations, partly related to
there having been a more intrusive first approach.
Most patches aren't really dependent upon one another, so can probably
go in independently (as they get acked).
A few patches from v1 went in, but there are also three new patches in
v2. See individual patches for what has changed (in response to review
comments).
01: rename SHADOW_FOREACH_L<N>E() to FOREACH_PRESENT_L<N>E()
02: drop redundant present bit checks from SHADOW_FOREACH_L<N>E() "bodies"
03: reduce explicit log-dirty recording for HVM
04: call sh_update_cr3() directly from sh_page_fault()
05: don't generate bogus "domain dying" trace entry from sh_page_fault()
06: use lighter weight mode checks
07: move OOS functions to their own file
08: sh_rm_write_access_from_sl1p() is HVM-only
09: drop is_hvm_...() where easily possible
10: make monitor table create/destroy more consistent
11: vCPU-s never have "no mode"
12: "monitor table" is a HVM-only concept
13: adjust monitor table prealloc amount
Jan
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