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Groups > linux.kernel > #1374544
| From | "Luis R. Rodriguez" <mcgrof@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v5 08/14] apm32: remove paravirt_enabled() use |
| Date | 2016-04-09 01:50 +0200 |
| Message-ID | <rlOk3-4h2-39@gated-at.bofh.it> (permalink) |
| References | <rlOk2-4h2-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
There is already a check for apm_info.bios == 0, the
apm_info.bios is set from the boot_params.apm_bios_info.
Both Xen and lguest, which are also the only ones that set
paravirt_enabled to true, never set the apm_bios.info. The
Xen folks are sure force disable to 0 is not needed because
apm_info lives in .bss, we recently forced disabled this on
lguest, and on the Xen side just to be sure Boris zeroed out
the .bss for PV guests through commit 04b6b4a56884327c1648
("xen/x86: Zero out .bss for PV guests"). With this care taken
into consideration the paravirt_enabled() check is simply not
needed anymore.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
---
arch/x86/kernel/apm_32.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index 9307f182fe30..c7364bd633e1 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -2267,7 +2267,7 @@ static int __init apm_init(void)
dmi_check_system(apm_dmi_table);
- if (apm_info.bios.version == 0 || paravirt_enabled() || machine_is_olpc()) {
+ if (apm_info.bios.version == 0 || machine_is_olpc()) {
printk(KERN_INFO "apm: BIOS not found.\n");
return -ENODEV;
}
--
2.7.2
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[PATCH v5 00/14] x86: remove paravirt_enabled() "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-09 01:50 +0200
[PATCH v5 08/14] apm32: remove paravirt_enabled() use "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-09 01:50 +0200
[PATCH v5 04/14] x86/rtc: replace paravirt rtc check with platform legacy quirk "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-09 02:00 +0200
[PATCH v5 10/14] x86/cpu/intel: remove not needed paravirt_enabled() for f00f work around "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-09 02:00 +0200
[PATCH v5 07/14] tools/lguest: force disable tboot and apm "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-09 02:00 +0200
Re: [PATCH v5 07/14] tools/lguest: force disable tboot and apm Ingo Molnar <mingo@kernel.org> - 2016-04-13 10:50 +0200
Re: [PATCH v5 07/14] tools/lguest: force disable tboot and apm "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-13 17:50 +0200
[PATCH v5 14/14] x86/paravirt: remove paravirt_enabled() "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-09 02:00 +0200
[PATCH v5 02/14] x86/xen: use X86_SUBARCH_XEN for PV guest boots "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-09 02:00 +0200
[PATCH v5 05/14] x86, ACPI: move ACPI_FADT_NO_CMOS_RTC check to ACPI boot code "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-09 02:00 +0200
[PATCH v5 09/14] x86/tboot: remove paravirt_enabled() "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-09 02:00 +0200
Re: [PATCH v5 00/14] x86: remove paravirt_enabled() "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-04-09 02:10 +0200
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