From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Vrabel Subject: Re: [Xen-devel] [PATCH v4 04/14] x86/rtc: replace paravirt rtc check with platform legacy quirk Date: Thu, 7 Apr 2016 10:42:40 +0100 Message-ID: <57062B90.10401@citrix.com> References: <1459987594-5434-1-git-send-email-mcgrof@kernel.org> <1459987594-5434-5-git-send-email-mcgrof@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1459987594-5434-5-git-send-email-mcgrof@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: "Luis R. Rodriguez" , bp@alien8.de, hpa@zytor.com, tglx@linutronix.de, mingo@redhat.com, rusty@rustcorp.com.au Cc: xen-devel@lists.xensource.com, matt@codeblueprint.co.uk, andrew.cooper3@citrix.com, x86@kernel.org, linux-kernel@vger.kernel.org, luto@amacapital.net, jlee@suse.com, lguest@lists.ozlabs.org, glin@suse.com, david.vrabel@citrix.com, boris.ostrovsky@oracle.com, andriy.shevchenko@linux.intel.com List-Id: xen-devel@lists.xenproject.org On 07/04/16 01:06, Luis R. Rodriguez wrote: > We have 4 types of x86 platforms that disable RTC: > > * Intel MID > * Lguest - uses paravirt > * Xen dom-U - uses paravirt > * x86 on legacy systems annotated with an ACPI legacy flag > > We can consolidate all of these into a platform specific legacy > quirk set early in boot through i386_start_kernel() and through > x86_64_start_reservations(). This deals with the RTC quirks which > we can rely on through the hardware subarch, the ACPI check can > be dealt with separately. Xen parts: Reviewed-by: David Vrabel David