The patch titled
Allow boot-time disable of paravirt_ops patching
has been removed from the -mm tree. Its filename was
allow-boot-time-disable-of-paravirt_ops-patching.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: Allow boot-time disable of paravirt_ops patching
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Add "noreplace-paravirt" to disable paravirt_ops patching.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xxxxxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/kernel-parameters.txt | 3 +++
arch/i386/kernel/alternative.c | 13 +++++++++++++
2 files changed, 16 insertions(+)
diff -puN Documentation/kernel-parameters.txt~allow-boot-time-disable-of-paravirt_ops-patching Documentation/kernel-parameters.txt
--- a/Documentation/kernel-parameters.txt~allow-boot-time-disable-of-paravirt_ops-patching
+++ a/Documentation/kernel-parameters.txt
@@ -64,6 +64,7 @@ parameter is applicable:
GENERIC_TIME The generic timeofday code is enabled.
NFS Appropriate NFS support is enabled.
OSS OSS sound support is enabled.
+ PV_OPS A paravirtualized kernel
PARIDE The ParIDE subsystem is enabled.
PARISC The PA-RISC architecture is enabled.
PCI PCI bus support is enabled.
@@ -1164,6 +1165,8 @@ and is between 256 and 4096 characters.
nomce [IA-32] Machine Check Exception
+ noreplace-paravirt [IA-32,PV_OPS] Don't patch paravirt_ops
+
noreplace-smp [IA-32,SMP] Don't replace SMP instructions
with UP alternatives
diff -puN arch/i386/kernel/alternative.c~allow-boot-time-disable-of-paravirt_ops-patching arch/i386/kernel/alternative.c
--- a/arch/i386/kernel/alternative.c~allow-boot-time-disable-of-paravirt_ops-patching
+++ a/arch/i386/kernel/alternative.c
@@ -30,6 +30,16 @@ static int __init setup_noreplace_smp(ch
}
__setup("noreplace-smp", setup_noreplace_smp);
+#ifdef CONFIG_PARAVIRT
+static int noreplace_paravirt = 0;
+
+static int __init setup_noreplace_paravirt(char *str)
+{
+ noreplace_paravirt = 1;
+ return 1;
+}
+__setup("noreplace-paravirt", setup_noreplace_paravirt);
+#endif
#define DPRINTK(fmt, args...) if (debug_alternative) \
printk(KERN_DEBUG fmt, args)
@@ -330,6 +340,9 @@ void apply_paravirt(struct paravirt_patc
{
struct paravirt_patch_site *p;
+ if (noreplace_paravirt)
+ return;
+
for (p = start; p < end; p++) {
unsigned int used;
_
Patches currently in -mm which might be from jeremy@xxxxxxxx are
add-kvasprintf.patch
add-kvasprintf-fix.patch
i386-map-enough-initial-memory-to-create-lowmem-mappings-fix.patch
add-apply_to_page_range-which-applies-a-function-to-a-pte-range.patch
add-apply_to_page_range-which-applies-a-function-to-a-pte-range-fix.patch
maps2-uninline-some-functions-in-the-page-walker.patch
maps2-eliminate-the-pmd_walker-struct-in-the-page-walker.patch
maps2-remove-vma-from-args-in-the-page-walker.patch
maps2-propagate-errors-from-callback-in-page-walker.patch
maps2-add-callbacks-for-each-level-to-page-walker.patch
maps2-move-the-page-walker-code-to-lib.patch
maps2-simplify-interdependence-of-proc-pid-maps-and-smaps.patch
maps2-move-clear_refs-code-to-task_mmuc.patch
maps2-regroup-task_mmu-by-interface.patch
maps2-make-proc-pid-smaps-optional-under-config_embedded.patch
maps2-make-proc-pid-clear_refs-option-under-config_embedded.patch
maps2-add-proc-pid-pagemap-interface.patch
maps2-add-proc-kpagemap-interface.patch
fixes-and-cleanups-for-earlyprintk-aka-boot-console.patch
ignore-stolen-time-in-the-softlockup-watchdog.patch
ignore-stolen-time-in-the-softlockup-watchdog-fix.patch
add-touch_all_softlockup_watchdogs.patch
deflate-inflate_dynamic-too.patch
lguest-vs-x86_64-mm-use-per-cpu-variables-for-gdt-pda.patch
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