Re: [Xen-devel] [PATCH] x86/time: Don't use EFI's GetTime call by default

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 01.12.15 at 17:57, <ross.lagerwall@xxxxxxxxxx> wrote:
> When EFI is used, don't use EFI's GetTime() to get the time, because it
> is broken on many platforms. From Linux commit 7efe665903d0 ("rtc:
> Disable EFI rtc for x86"):
> "Disable it explicitly for x86 so that we don't give users false
> hope that this driver will work - it won't, and your machine is likely
> to crash."
> 
> Signed-off-by: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>

NAK, since being conceptually wrong (and both of my systems work
fine). Vendors should get their firmware fixed, and by not using
runtime service functions we would give them even less reason to
do so. Until then we have "efi=no-rs".

Jan


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