| Message ID | 20240903130303.71334-1-roger.pau@citrix.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | x86/time: improvements to wallclock logic | expand |
On 03.09.2024 15:02, Roger Pau Monne wrote: > Hello, > > This series started as an attempt to change the default wallclock > preference from EFI_GET_TIME to CMOS RTC, but has grown quite a lot. > First 3 patches should be non-functional changes, mostly chopping the > current logic into smaller functions so that in patch 4 the probing vs > runtime wallclock logic can be split. > > Patch 5 changes the preference to use CMOS RTC even when booted from EFI > firmware. > > Finally patches 6 introduces a new command line option to bypass the > probing an allow specifying which wallclock source to use on the command > line. Patch 7 enables CMOS RTC probing by default. > > Thanks, Roger. > > Roger Pau Monne (7): > x86/time: introduce helper to fetch Xen wallclock when running as a > guest > x86/time: move CMOS edge detection into read helper > x86/time: split CMOS read and probe logic into function > x86/time: introduce probing logic for the wallclock > x86/time: prefer CMOS over EFI_GET_TIME > x86/time: introduce command line option to select wallclock > x86/time: probe the CMOS RTC by default > > docs/misc/xen-command-line.pandoc | 28 +++- > xen/arch/x86/time.c | 238 +++++++++++++++++++++++------- > 2 files changed, 208 insertions(+), 58 deletions(-) Having reached patch 6, it seems pretty clear that somewhere in the series a CHANGELOG.md entry wants adding. Jan
Hello, This series started as an attempt to change the default wallclock preference from EFI_GET_TIME to CMOS RTC, but has grown quite a lot. First 3 patches should be non-functional changes, mostly chopping the current logic into smaller functions so that in patch 4 the probing vs runtime wallclock logic can be split. Patch 5 changes the preference to use CMOS RTC even when booted from EFI firmware. Finally patches 6 introduces a new command line option to bypass the probing an allow specifying which wallclock source to use on the command line. Patch 7 enables CMOS RTC probing by default. Thanks, Roger. Roger Pau Monne (7): x86/time: introduce helper to fetch Xen wallclock when running as a guest x86/time: move CMOS edge detection into read helper x86/time: split CMOS read and probe logic into function x86/time: introduce probing logic for the wallclock x86/time: prefer CMOS over EFI_GET_TIME x86/time: introduce command line option to select wallclock x86/time: probe the CMOS RTC by default docs/misc/xen-command-line.pandoc | 28 +++- xen/arch/x86/time.c | 238 +++++++++++++++++++++++------- 2 files changed, 208 insertions(+), 58 deletions(-)