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yaml
---
r: 112663
b: refs/heads/master
c: ad66dd3
h: refs/heads/master
i:
  112661: ad616fb
  112659: 3232113
  112655: e233710
v: v3
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Suresh Siddha authored and Ingo Molnar committed Jul 12, 2008
1 parent a847e40 commit a20ffeb
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Showing 4 changed files with 50 additions and 11 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 277d1f5846d84e16760131a93b7a67ebfa8eded4
refs/heads/master: ad66dd340f561bdde2285992314d9e4fd9b6191e
4 changes: 2 additions & 2 deletions trunk/arch/x86/lguest/boot.c
Original file line number Diff line number Diff line change
Expand Up @@ -783,11 +783,11 @@ static void lguest_wbinvd(void)
* code qualifies for Advanced. It will also never interrupt anything. It
* does, however, allow us to get through the Linux boot code. */
#ifdef CONFIG_X86_LOCAL_APIC
static void lguest_apic_write(unsigned long reg, u32 v)
static void lguest_apic_write(u32 reg, u32 v)
{
}

static u32 lguest_apic_read(unsigned long reg)
static u32 lguest_apic_read(u32 reg)
{
return 0;
}
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41 changes: 39 additions & 2 deletions trunk/arch/x86/xen/enlighten.c
Original file line number Diff line number Diff line change
Expand Up @@ -548,16 +548,45 @@ static void xen_io_delay(void)
}

#ifdef CONFIG_X86_LOCAL_APIC
static u32 xen_apic_read(unsigned long reg)
static u32 xen_apic_read(u32 reg)
{
return 0;
}

static void xen_apic_write(unsigned long reg, u32 val)
static void xen_apic_write(u32 reg, u32 val)
{
/* Warn to see if there's any stray references */
WARN_ON(1);
}

#ifdef CONFIG_X86_64
static u64 xen_apic_icr_read(void)
{
return 0;
}

static void xen_apic_icr_write(u32 low, u32 id)
{
/* Warn to see if there's any stray references */
WARN_ON(1);
}

static void xen_apic_wait_icr_idle(void)
{
return;
}

static struct apic_ops xen_basic_apic_ops = {
.read = xen_apic_read,
.write = xen_apic_write,
.write_atomic = xen_apic_write,
.icr_read = xen_apic_icr_read,
.icr_write = xen_apic_icr_write,
.wait_icr_idle = xen_apic_wait_icr_idle,
.safe_wait_icr_idle = xen_apic_wait_icr_idle,
};
#endif

#endif

static void xen_flush_tlb(void)
Expand Down Expand Up @@ -1130,9 +1159,11 @@ static const struct pv_irq_ops xen_irq_ops __initdata = {

static const struct pv_apic_ops xen_apic_ops __initdata = {
#ifdef CONFIG_X86_LOCAL_APIC
#ifndef CONFIG_X86_64
.apic_write = xen_apic_write,
.apic_write_atomic = xen_apic_write,
.apic_read = xen_apic_read,
#endif
.setup_boot_clock = paravirt_nop,
.setup_secondary_clock = paravirt_nop,
.startup_ipi_hook = paravirt_nop,
Expand Down Expand Up @@ -1291,6 +1322,12 @@ asmlinkage void __init xen_start_kernel(void)
pv_irq_ops = xen_irq_ops;
pv_apic_ops = xen_apic_ops;
pv_mmu_ops = xen_mmu_ops;
#ifdef CONFIG_X86_64
/*
* for 64bit, set up the basic apic ops aswell.
*/
apic_ops = &xen_basic_apic_ops;
#endif

if (xen_feature(XENFEAT_mmu_pt_update_preserve_ad)) {
pv_mmu_ops.ptep_modify_prot_start = xen_ptep_modify_prot_start;
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14 changes: 8 additions & 6 deletions trunk/include/asm-x86/paravirt.h
Original file line number Diff line number Diff line change
Expand Up @@ -200,13 +200,15 @@ struct pv_irq_ops {

struct pv_apic_ops {
#ifdef CONFIG_X86_LOCAL_APIC
#ifndef CONFIG_X86_64
/*
* Direct APIC operations, principally for VMI. Ideally
* these shouldn't be in this interface.
*/
void (*apic_write)(unsigned long reg, u32 v);
void (*apic_write_atomic)(unsigned long reg, u32 v);
u32 (*apic_read)(unsigned long reg);
void (*apic_write)(u32 reg, u32 v);
void (*apic_write_atomic)(u32 reg, u32 v);
u32 (*apic_read)(u32 reg);
#endif
void (*setup_boot_clock)(void);
void (*setup_secondary_clock)(void);

Expand Down Expand Up @@ -892,17 +894,17 @@ static inline void slow_down_io(void)
* Basic functions accessing APICs.
*/
#ifndef CONFIG_X86_64
static inline void apic_write(unsigned long reg, u32 v)
static inline void apic_write(u32 reg, u32 v)
{
PVOP_VCALL2(pv_apic_ops.apic_write, reg, v);
}

static inline void apic_write_atomic(unsigned long reg, u32 v)
static inline void apic_write_atomic(u32 reg, u32 v)
{
PVOP_VCALL2(pv_apic_ops.apic_write_atomic, reg, v);
}

static inline u32 apic_read(unsigned long reg)
static inline u32 apic_read(u32 reg)
{
return PVOP_CALL1(unsigned long, pv_apic_ops.apic_read, reg);
}
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