[Xen-devel] [PATCH v6 14/16] x86/paravirt: remove paravirt_enabled()

["Luis R. Rodriguez" <mcgrof@xxxxxxxxxx>]

That that paravirt_enabled() is replaced with proper
x86 semantics we can remove it.

Acked-by: Juergen Gross <jgross@xxxxxxxx>
Signed-off-by: Luis R. Rodriguez <mcgrof@xxxxxxxxxx>
---
 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


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