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Subject[PATCH v2 02/21] x86/xen: globalize have_vcpu_info_placement
Date
have_vcpu_info_placement applies to both PV and HVM and as we're going
to split the code we need to make it global.

Rename to xen_have_vcpu_info_placement.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
arch/x86/xen/enlighten.c | 12 ++++++------
arch/x86/xen/xen-ops.h | 2 ++
2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 4c1a582..de77be9 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -164,7 +164,7 @@ struct shared_info *HYPERVISOR_shared_info = &xen_dummy_shared_info;
*
* 0: not available, 1: available
*/
-static int have_vcpu_info_placement = 1;
+int xen_have_vcpu_info_placement = 1;

struct tls_descs {
struct desc_struct desc[3];
@@ -228,7 +228,7 @@ void xen_vcpu_setup(int cpu)
per_cpu(xen_vcpu, cpu) =
&HYPERVISOR_shared_info->vcpu_info[xen_vcpu_nr(cpu)];

- if (!have_vcpu_info_placement) {
+ if (!xen_have_vcpu_info_placement) {
if (cpu >= MAX_VIRT_CPUS)
clamp_max_cpus();
return;
@@ -251,7 +251,7 @@ void xen_vcpu_setup(int cpu)

if (err) {
printk(KERN_DEBUG "register_vcpu_info failed: err=%d\n", err);
- have_vcpu_info_placement = 0;
+ xen_have_vcpu_info_placement = 0;
clamp_max_cpus();
} else {
/* This cpu is using the registered vcpu info, even if
@@ -280,7 +280,7 @@ void xen_vcpu_restore(void)

xen_setup_runstate_info(cpu);

- if (have_vcpu_info_placement)
+ if (xen_have_vcpu_info_placement)
xen_vcpu_setup(cpu);

if (other_cpu && is_up &&
@@ -1159,7 +1159,7 @@ void xen_setup_vcpu_info_placement(void)
* xen_vcpu_setup managed to place the vcpu_info within the
* percpu area for all cpus, so make use of it.
*/
- if (have_vcpu_info_placement) {
+ if (xen_have_vcpu_info_placement) {
pv_irq_ops.save_fl = __PV_IS_CALLEE_SAVE(xen_save_fl_direct);
pv_irq_ops.restore_fl = __PV_IS_CALLEE_SAVE(xen_restore_fl_direct);
pv_irq_ops.irq_disable = __PV_IS_CALLEE_SAVE(xen_irq_disable_direct);
@@ -1178,7 +1178,7 @@ static unsigned xen_patch(u8 type, u16 clobbers, void *insnbuf,

#define SITE(op, x) \
case PARAVIRT_PATCH(op.x): \
- if (have_vcpu_info_placement) { \
+ if (xen_have_vcpu_info_placement) { \
start = (char *)xen_##x##_direct; \
end = xen_##x##_direct_end; \
reloc = xen_##x##_direct_reloc; \
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
index f6a41c4..2b162f6 100644
--- a/arch/x86/xen/xen-ops.h
+++ b/arch/x86/xen/xen-ops.h
@@ -76,6 +76,8 @@ irqreturn_t xen_debug_interrupt(int irq, void *dev_id);

bool xen_vcpu_stolen(int vcpu);

+extern int xen_have_vcpu_info_placement;
+
void xen_vcpu_setup(int cpu);
void xen_setup_vcpu_info_placement(void);

--
2.9.3
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