The patch titled
paravirtualization: Allow disabling legacy power management modes with paravirt kernels
has been added to the -mm tree. Its filename is
paravirtualization-allow-disabling-legacy-power.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: paravirtualization: Allow disabling legacy power management modes with paravirt kernels
From: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Two legacy power management modes are much easier to just explicitly disable
when running in paravirtualized mode - neither APM nor PnP is still relevant.
The status of ACPI is still debatable, and noacpi is still a common enough
boot parameter that it is not necessary to explicitly disable ACPI.
Signed-off-by: Zachary Amsden <zach@xxxxxxxxxx>
Signed-off-by: Chris Wright <chrisw@xxxxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/i386/kernel/apm.c | 3 ++-
drivers/pnp/pnpbios/core.c | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)
diff -puN arch/i386/kernel/apm.c~paravirtualization-allow-disabling-legacy-power arch/i386/kernel/apm.c
--- a/arch/i386/kernel/apm.c~paravirtualization-allow-disabling-legacy-power
+++ a/arch/i386/kernel/apm.c
@@ -231,6 +231,7 @@
#include <asm/uaccess.h>
#include <asm/desc.h>
#include <asm/i8253.h>
+#include <asm/paravirt.h>
#include "io_ports.h"
@@ -2235,7 +2236,7 @@ static int __init apm_init(void)
dmi_check_system(apm_dmi_table);
- if (apm_info.bios.version == 0) {
+ if (apm_info.bios.version == 0 || paravirt_enabled()) {
printk(KERN_INFO "apm: BIOS not found.\n");
return -ENODEV;
}
diff -puN drivers/pnp/pnpbios/core.c~paravirtualization-allow-disabling-legacy-power drivers/pnp/pnpbios/core.c
--- a/drivers/pnp/pnpbios/core.c~paravirtualization-allow-disabling-legacy-power
+++ a/drivers/pnp/pnpbios/core.c
@@ -530,7 +530,8 @@ static int __init pnpbios_init(void)
if (check_legacy_ioport(PNPBIOS_BASE))
return -ENODEV;
#endif
- if (pnpbios_disabled || dmi_check_system(pnpbios_dmi_table)) {
+ if (pnpbios_disabled || dmi_check_system(pnpbios_dmi_table) ||
+ paravirt_enabled()) {
printk(KERN_INFO "PnPBIOS: Disabled\n");
return -ENODEV;
}
_
Patches currently in -mm which might be from rusty@xxxxxxxxxxxxxxx are
printk-timed-ratelimit.patch
schedule-removal-of-futex_fd.patch
prep-for-paravirt-be-careful-about-touching-bios.patch
prep-for-paravirt-be-careful-about-touching-bios-warning-fix.patch
prep-for-paravirt-desch-clearer-parameter-names.patch
prep-for-paravirt-desch-clearer-parameter-names-fix.patch
prep-for-paravirt-rearrange-processorh.patch
paravirtualization-header-and-stubs-for.patch
paravirtualization-patch-inline-replacements-for.patch
paravirtualization-more-generic-paravirtualization.patch
paravirtualization-allow-selected-bug-checks-to-be.patch
paravirtualization-allow-disabling-legacy-power.patch
paravirtualization-add-apic-accessors-to-paravirt-ops.patch
paravirtualization-add-mmu-virtualization-to.patch
generic-bug-implementation.patch
generic-bug-for-i386.patch
generic-bug-for-x86-64.patch
bug-test-1.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
