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Jan Beulich
eb1f325186
Commite1de4c196a("x86/timer: Fix boot on Intel systems using ITSSPRC static PIT clock gating") was reported to cause boot failures on certain AMD Ryzen systems. Refine the fix to do nothing in the default case, and only attempt to configure legacy replacement mode if IRQ0 is found to not be working. If legacy replacement mode doesn't help, undo it before falling back to other IRQ routing configurations. In addition, introduce a "hpet" command line option so this heuristic can be overridden. Since it makes little sense to introduce just "hpet=legacy-replacement", also allow for a boolean argument as well as "broadcast" to replace the separate "hpetbroadcast" option. Reported-by: Frédéric Pierret frederic.pierret@qubes-os.org Signed-off-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Reviewed-by: Roger Pau Monné <roger.pau@citrix.com> Reviewed-by: Jan Beulich <jbeulich@suse.com> Tested-by: Frédéric Pierret <frederic.pierret@qubes-os.org> master commit:b53173e7cdmaster date: 2021-04-15 18:25:40 +0100
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