From: Rusty Russell Date: Wed, 11 Feb 2015 04:45:10 +0000 (+1030) Subject: lguest: don't disable iospace. X-Git-Tag: firefly_0821_release~176^2~2282^2~39 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d1c29465b8a52d8fc5a59aac92c6b206b69fe631;p=firefly-linux-kernel-4.4.55.git lguest: don't disable iospace. This no longer speeds up boot (IDE got better, I guess), but it does stop us probing for a PCI bus. Signed-off-by: Rusty Russell --- diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index c1c1544b8485..47ec7f201d27 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c @@ -1399,14 +1399,6 @@ __init void lguest_init(void) /* Hook in our special panic hypercall code. */ atomic_notifier_chain_register(&panic_notifier_list, &paniced); - /* - * The IDE code spends about 3 seconds probing for disks: if we reserve - * all the I/O ports up front it can't get them and so doesn't probe. - * Other device drivers are similar (but less severe). This cuts the - * kernel boot time on my machine from 4.1 seconds to 0.45 seconds. - */ - paravirt_disable_iospace(); - /* * This is messy CPU setup stuff which the native boot code does before * start_kernel, so we have to do, too: