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authorRusty Russell <rusty@rustcorp.com.au>2015-02-10 23:45:10 -0500
committerRusty Russell <rusty@rustcorp.com.au>2015-02-11 01:17:32 -0500
commitd1c29465b8a52d8fc5a59aac92c6b206b69fe631 (patch)
tree5e1de4fbc947d5ee0324dada94e52f1a0eedba91
parent48fd6b71d60ef66ef2d791045d750168c0d09201 (diff)
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 <rusty@rustcorp.com.au>
-rw-r--r--arch/x86/lguest/boot.c8
1 files changed, 0 insertions, 8 deletions
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
@@ -1400,14 +1400,6 @@ __init void lguest_init(void)
1400 atomic_notifier_chain_register(&panic_notifier_list, &paniced); 1400 atomic_notifier_chain_register(&panic_notifier_list, &paniced);
1401 1401
1402 /* 1402 /*
1403 * The IDE code spends about 3 seconds probing for disks: if we reserve
1404 * all the I/O ports up front it can't get them and so doesn't probe.
1405 * Other device drivers are similar (but less severe). This cuts the
1406 * kernel boot time on my machine from 4.1 seconds to 0.45 seconds.
1407 */
1408 paravirt_disable_iospace();
1409
1410 /*
1411 * This is messy CPU setup stuff which the native boot code does before 1403 * This is messy CPU setup stuff which the native boot code does before
1412 * start_kernel, so we have to do, too: 1404 * start_kernel, so we have to do, too:
1413 */ 1405 */