From: "Luis R. Rodriguez" <mcgrof@kernel.org>
To: bp@alien8.de, hpa@zytor.com, tglx@linutronix.de,
mingo@redhat.com, rusty@rustcorp.com.au
Cc: x86@kernel.org, linux-kernel@vger.kernel.org,
luto@amacapital.net, boris.ostrovsky@oracle.com, jgross@suse.com,
david.vrabel@citrix.com, konrad.wilk@oracle.com,
xen-devel@lists.xensource.com, lguest@lists.ozlabs.org,
andriy.shevchenko@linux.intel.com, jlee@suse.com, glin@suse.com,
matt@codeblueprint.co.uk, andrew.cooper3@citrix.com,
rjw@rjwysocki.net, lenb@kernel.org, robert.moore@intel.com,
lv.zheng@intel.com, toshi.kani@hp.com,
linux-acpi@vger.kernel.org, kozerkov@parallels.com,
josh@joshtriplett.org, bigeasy@linutronix.de,
ffainelli@freebox.fr, george.dunlap@citrix.com,
julien.grall@linaro.org, mbizon@freebox.fr, tiwai@suse.de,
"Luis R. Rodriguez" <mcgrof@kernel.org>
Subject: [PATCH v6 14/16] x86/paravirt: remove paravirt_enabled()
Date: Wed, 13 Apr 2016 17:04:44 -0700 [thread overview]
Message-ID: <1460592286-300-15-git-send-email-mcgrof@kernel.org> (raw)
In-Reply-To: <1460592286-300-1-git-send-email-mcgrof@kernel.org>
That that paravirt_enabled() is replaced with proper
x86 semantics we can remove it.
Acked-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
---
arch/x86/include/asm/paravirt.h | 5 -----
arch/x86/include/asm/paravirt_types.h | 1 -
arch/x86/include/asm/processor.h | 1 -
arch/x86/kernel/kvm.c | 8 --------
arch/x86/kernel/paravirt.c | 1 -
arch/x86/lguest/boot.c | 2 --
arch/x86/xen/enlighten.c | 1 -
7 files changed, 19 deletions(-)
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 6c7a4a192032..dff26bc91b17 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -15,11 +15,6 @@
#include <linux/cpumask.h>
#include <asm/frame.h>
-static inline int paravirt_enabled(void)
-{
- return pv_info.paravirt_enabled;
-}
-
static inline void load_sp0(struct tss_struct *tss,
struct thread_struct *thread)
{
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 6acc1b26cf40..7fedf24bd811 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -69,7 +69,6 @@ struct pv_info {
u16 extra_user_64bit_cs; /* __USER_CS if none */
#endif
- int paravirt_enabled;
const char *name;
};
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 0c70c7daa6b8..8d326e822cb8 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -473,7 +473,6 @@ static inline unsigned long current_top_of_stack(void)
#include <asm/paravirt.h>
#else
#define __cpuid native_cpuid
-#define paravirt_enabled() 0
static inline void load_sp0(struct tss_struct *tss,
struct thread_struct *thread)
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index dc1207e2f193..eea2a6f72b31 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -285,14 +285,6 @@ static void __init paravirt_ops_setup(void)
{
pv_info.name = "KVM";
- /*
- * KVM isn't paravirt in the sense of paravirt_enabled. A KVM
- * guest kernel works like a bare metal kernel with additional
- * features, and paravirt_enabled is about features that are
- * missing.
- */
- pv_info.paravirt_enabled = 0;
-
if (kvm_para_has_feature(KVM_FEATURE_NOP_IO_DELAY))
pv_cpu_ops.io_delay = kvm_io_delay;
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index f08ac28b8136..71a2d8a05a66 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -294,7 +294,6 @@ enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
struct pv_info pv_info = {
.name = "bare hardware",
- .paravirt_enabled = 0,
.kernel_rpl = 0,
.shared_kernel_pmd = 1, /* Only used when CONFIG_X86_PAE is set */
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index f5497ee5fd2f..3847e736702e 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -1408,8 +1408,6 @@ __init void lguest_init(void)
{
/* We're under lguest. */
pv_info.name = "lguest";
- /* Paravirt is enabled. */
- pv_info.paravirt_enabled = 1;
/* We're running at privilege level 1, not 0 as normal. */
pv_info.kernel_rpl = 1;
/* Everyone except Xen runs with this set. */
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index b08489ba5051..f9fb90978867 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1186,7 +1186,6 @@ static unsigned xen_patch(u8 type, u16 clobbers, void *insnbuf,
}
static const struct pv_info xen_info __initconst = {
- .paravirt_enabled = 1,
.shared_kernel_pmd = 0,
#ifdef CONFIG_X86_64
--
2.7.2
next prev parent reply other threads:[~2016-04-14 0:05 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-14 0:04 [PATCH v6 00/16] x86: remove paravirt_enabled() Luis R. Rodriguez
2016-04-14 0:04 ` [PATCH v6 01/16] x86/boot: enumerate documentation for the x86 hardware_subarch Luis R. Rodriguez
2016-04-14 0:04 ` [PATCH v6 02/16] x86/xen: use X86_SUBARCH_XEN for PV guest boots Luis R. Rodriguez
2016-04-14 0:04 ` [PATCH v6 03/16] tools/lguest: make lguest launcher use X86_SUBARCH_LGUEST explicitly Luis R. Rodriguez
2016-04-14 0:04 ` [PATCH v6 04/16] x86/rtc: replace paravirt rtc check with platform legacy quirk Luis R. Rodriguez
2016-04-14 4:28 ` Juergen Gross
2016-04-14 0:04 ` [PATCH v6 05/16] x86, ACPI: move ACPI_FADT_NO_CMOS_RTC check to ACPI boot code Luis R. Rodriguez
2016-04-14 0:04 ` [PATCH v6 06/16] x86/init: use a platform legacy quirk for ebda Luis R. Rodriguez
2016-04-14 0:04 ` [PATCH v6 07/16] tools/lguest: force disable tboot and apm Luis R. Rodriguez
2016-04-14 0:04 ` [PATCH v6 08/16] apm32: remove paravirt_enabled() use Luis R. Rodriguez
2016-04-14 0:04 ` [PATCH v6 09/16] x86/tboot: remove paravirt_enabled() Luis R. Rodriguez
2016-04-14 0:04 ` [PATCH v6 10/16] x86/cpu/intel: remove not needed paravirt_enabled() for f00f work around Luis R. Rodriguez
2016-04-14 0:04 ` [PATCH v6 11/16] pnpbios: replace paravirt_enabled() check with legacy device check Luis R. Rodriguez
2016-04-14 0:04 ` [PATCH v6 12/16] x86, ACPI: parse ACPI_FADT_LEGACY_DEVICES Luis R. Rodriguez
2016-04-14 0:04 ` [PATCH v6 13/16] x86/init: rename ebda code file Luis R. Rodriguez
2016-04-14 0:04 ` Luis R. Rodriguez [this message]
2016-04-14 0:04 ` [PATCH v6 15/16] x86/init: disable pnpbios for X86_SUBARCH_INTEL_MID Luis R. Rodriguez
2016-04-14 0:04 ` [PATCH v6 16/16] x86/init: disable pnpbios and rtc for X86_SUBARCH_CE4100 Luis R. Rodriguez
2016-04-14 0:13 ` [PATCH v6 05/16] x86, ACPI: move ACPI_FADT_NO_CMOS_RTC check to ACPI boot code Luis R. Rodriguez
2016-04-14 0:13 ` [PATCH v6 07/16] tools/lguest: force disable tboot and apm Luis R. Rodriguez
2016-04-14 0:13 ` [PATCH v6 12/16] x86, ACPI: parse ACPI_FADT_LEGACY_DEVICES Luis R. Rodriguez
2016-04-14 0:17 ` [PATCH v6 05/16] x86, ACPI: move ACPI_FADT_NO_CMOS_RTC check to ACPI boot code Luis R. Rodriguez
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