lkml.org 
[lkml]   [2014]   [Nov]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH v4 04/10] x86: paravirt: Wrap initialization of set_iopl_mask in a macro
This will allow making set_iopl_mask optional later.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
---
arch/x86/include/asm/paravirt_types.h | 1 +
arch/x86/kernel/paravirt.c | 2 +-
arch/x86/xen/enlighten.c | 4 ++--
3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 7549b8b..3caf2a8 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -143,6 +143,7 @@ struct pv_cpu_ops {
void (*load_sp0)(struct tss_struct *tss, struct thread_struct *t);

void (*set_iopl_mask)(unsigned mask);
+#define INIT_SET_IOPL_MASK(f) .set_iopl_mask = f,

void (*wbinvd)(void);
void (*io_delay)(void);
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 548d25f..e7969d4 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -383,7 +383,7 @@ __visible struct pv_cpu_ops pv_cpu_ops = {
.iret = native_iret,
.swapgs = native_swapgs,

- .set_iopl_mask = native_set_iopl_mask,
+ INIT_SET_IOPL_MASK(native_set_iopl_mask)
.io_delay = native_io_delay,

.start_context_switch = paravirt_nop,
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 1a3f044..8ad0778 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -912,7 +912,7 @@ static void xen_load_sp0(struct tss_struct *tss,
xen_mc_issue(PARAVIRT_LAZY_CPU);
}

-static void xen_set_iopl_mask(unsigned mask)
+static void __maybe_unused xen_set_iopl_mask(unsigned mask)
{
struct physdev_set_iopl set_iopl;

@@ -1279,7 +1279,7 @@ static const struct pv_cpu_ops xen_cpu_ops __initconst = {
.write_idt_entry = xen_write_idt_entry,
.load_sp0 = xen_load_sp0,

- .set_iopl_mask = xen_set_iopl_mask,
+ INIT_SET_IOPL_MASK(xen_set_iopl_mask)
.io_delay = xen_io_delay,

/* Xen takes care of %gs when switching to usermode for us */
--
2.1.1


\
 
 \ /
  Last update: 2014-11-02 18:41    [W:0.330 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site