diff options
Diffstat (limited to 'arch/x86/kernel/vsmp_64.c')
| -rw-r--r-- | arch/x86/kernel/vsmp_64.c | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/arch/x86/kernel/vsmp_64.c b/arch/x86/kernel/vsmp_64.c index a688f3bfaec..74de562812c 100644 --- a/arch/x86/kernel/vsmp_64.c +++ b/arch/x86/kernel/vsmp_64.c | |||
| @@ -22,7 +22,7 @@ | |||
| 22 | #include <asm/paravirt.h> | 22 | #include <asm/paravirt.h> |
| 23 | #include <asm/setup.h> | 23 | #include <asm/setup.h> |
| 24 | 24 | ||
| 25 | #if defined CONFIG_PCI && defined CONFIG_PARAVIRT | 25 | #ifdef CONFIG_PARAVIRT |
| 26 | /* | 26 | /* |
| 27 | * Interrupt control on vSMPowered systems: | 27 | * Interrupt control on vSMPowered systems: |
| 28 | * ~AC is a shadow of IF. If IF is 'on' AC should be 'off' | 28 | * ~AC is a shadow of IF. If IF is 'on' AC should be 'off' |
| @@ -37,6 +37,7 @@ static unsigned long vsmp_save_fl(void) | |||
| 37 | flags &= ~X86_EFLAGS_IF; | 37 | flags &= ~X86_EFLAGS_IF; |
| 38 | return flags; | 38 | return flags; |
| 39 | } | 39 | } |
| 40 | PV_CALLEE_SAVE_REGS_THUNK(vsmp_save_fl); | ||
| 40 | 41 | ||
| 41 | static void vsmp_restore_fl(unsigned long flags) | 42 | static void vsmp_restore_fl(unsigned long flags) |
| 42 | { | 43 | { |
| @@ -46,6 +47,7 @@ static void vsmp_restore_fl(unsigned long flags) | |||
| 46 | flags |= X86_EFLAGS_AC; | 47 | flags |= X86_EFLAGS_AC; |
| 47 | native_restore_fl(flags); | 48 | native_restore_fl(flags); |
| 48 | } | 49 | } |
| 50 | PV_CALLEE_SAVE_REGS_THUNK(vsmp_restore_fl); | ||
| 49 | 51 | ||
| 50 | static void vsmp_irq_disable(void) | 52 | static void vsmp_irq_disable(void) |
| 51 | { | 53 | { |
| @@ -53,6 +55,7 @@ static void vsmp_irq_disable(void) | |||
| 53 | 55 | ||
| 54 | native_restore_fl((flags & ~X86_EFLAGS_IF) | X86_EFLAGS_AC); | 56 | native_restore_fl((flags & ~X86_EFLAGS_IF) | X86_EFLAGS_AC); |
| 55 | } | 57 | } |
| 58 | PV_CALLEE_SAVE_REGS_THUNK(vsmp_irq_disable); | ||
| 56 | 59 | ||
| 57 | static void vsmp_irq_enable(void) | 60 | static void vsmp_irq_enable(void) |
| 58 | { | 61 | { |
| @@ -60,6 +63,7 @@ static void vsmp_irq_enable(void) | |||
| 60 | 63 | ||
| 61 | native_restore_fl((flags | X86_EFLAGS_IF) & (~X86_EFLAGS_AC)); | 64 | native_restore_fl((flags | X86_EFLAGS_IF) & (~X86_EFLAGS_AC)); |
| 62 | } | 65 | } |
| 66 | PV_CALLEE_SAVE_REGS_THUNK(vsmp_irq_enable); | ||
| 63 | 67 | ||
| 64 | static unsigned __init_or_module vsmp_patch(u8 type, u16 clobbers, void *ibuf, | 68 | static unsigned __init_or_module vsmp_patch(u8 type, u16 clobbers, void *ibuf, |
| 65 | unsigned long addr, unsigned len) | 69 | unsigned long addr, unsigned len) |
| @@ -90,10 +94,10 @@ static void __init set_vsmp_pv_ops(void) | |||
| 90 | cap, ctl); | 94 | cap, ctl); |
| 91 | if (cap & ctl & (1 << 4)) { | 95 | if (cap & ctl & (1 << 4)) { |
| 92 | /* Setup irq ops and turn on vSMP IRQ fastpath handling */ | 96 | /* Setup irq ops and turn on vSMP IRQ fastpath handling */ |
| 93 | pv_irq_ops.irq_disable = vsmp_irq_disable; | 97 | pv_irq_ops.irq_disable = PV_CALLEE_SAVE(vsmp_irq_disable); |
| 94 | pv_irq_ops.irq_enable = vsmp_irq_enable; | 98 | pv_irq_ops.irq_enable = PV_CALLEE_SAVE(vsmp_irq_enable); |
| 95 | pv_irq_ops.save_fl = vsmp_save_fl; | 99 | pv_irq_ops.save_fl = PV_CALLEE_SAVE(vsmp_save_fl); |
| 96 | pv_irq_ops.restore_fl = vsmp_restore_fl; | 100 | pv_irq_ops.restore_fl = PV_CALLEE_SAVE(vsmp_restore_fl); |
| 97 | pv_init_ops.patch = vsmp_patch; | 101 | pv_init_ops.patch = vsmp_patch; |
| 98 | 102 | ||
| 99 | ctl &= ~(1 << 4); | 103 | ctl &= ~(1 << 4); |
| @@ -110,7 +114,6 @@ static void __init set_vsmp_pv_ops(void) | |||
| 110 | } | 114 | } |
| 111 | #endif | 115 | #endif |
| 112 | 116 | ||
| 113 | #ifdef CONFIG_PCI | ||
| 114 | static int is_vsmp = -1; | 117 | static int is_vsmp = -1; |
| 115 | 118 | ||
| 116 | static void __init detect_vsmp_box(void) | 119 | static void __init detect_vsmp_box(void) |
| @@ -135,15 +138,6 @@ int is_vsmp_box(void) | |||
| 135 | return 0; | 138 | return 0; |
| 136 | } | 139 | } |
| 137 | } | 140 | } |
| 138 | #else | ||
| 139 | static void __init detect_vsmp_box(void) | ||
| 140 | { | ||
| 141 | } | ||
| 142 | int is_vsmp_box(void) | ||
| 143 | { | ||
| 144 | return 0; | ||
| 145 | } | ||
| 146 | #endif | ||
| 147 | 141 | ||
| 148 | void __init vsmp_init(void) | 142 | void __init vsmp_init(void) |
| 149 | { | 143 | { |
