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| author | Claudio Imbrenda <imbrenda@linux.ibm.com> | 2021-09-20 15:24:54 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2021-10-27 07:55:53 +0200 |
| commit | 380d97bd02fca7b9b41aec2d1c767874d602bc78 (patch) | |
| tree | 8e9f822ec608744ebcb9f4e5ddb293936e59393a /scripts/gcc-plugins | |
| parent | 85f517b29418158d3e6e90c3f0fc01b306d2f1a1 (diff) | |
KVM: s390: pv: properly handle page flags for protected guests
Introduce variants of the convert and destroy page functions that also
clear the PG_arch_1 bit used to mark them as secure pages.
The PG_arch_1 flag is always allowed to overindicate; using the new
functions introduced here allows to reduce the extent of overindication
and thus improve performance.
These new functions can only be called on pages for which a reference
is already being held.
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Link: https://lore.kernel.org/r/20210920132502.36111-7-imbrenda@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'scripts/gcc-plugins')
0 files changed, 0 insertions, 0 deletions