diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/i386/power/cpu.c | 17 | ||||
-rw-r--r-- | arch/x86_64/kernel/suspend.c | 18 |
2 files changed, 16 insertions, 19 deletions
diff --git a/arch/i386/power/cpu.c b/arch/i386/power/cpu.c index d099d01461f4..0e6b45b61251 100644 --- a/arch/i386/power/cpu.c +++ b/arch/i386/power/cpu.c | |||
@@ -44,7 +44,6 @@ void __save_processor_state(struct saved_context *ctxt) | |||
44 | */ | 44 | */ |
45 | asm volatile ("sgdt %0" : "=m" (ctxt->gdt_limit)); | 45 | asm volatile ("sgdt %0" : "=m" (ctxt->gdt_limit)); |
46 | asm volatile ("sidt %0" : "=m" (ctxt->idt_limit)); | 46 | asm volatile ("sidt %0" : "=m" (ctxt->idt_limit)); |
47 | asm volatile ("sldt %0" : "=m" (ctxt->ldt)); | ||
48 | asm volatile ("str %0" : "=m" (ctxt->tr)); | 47 | asm volatile ("str %0" : "=m" (ctxt->tr)); |
49 | 48 | ||
50 | /* | 49 | /* |
@@ -107,7 +106,6 @@ static void fix_processor_context(void) | |||
107 | 106 | ||
108 | void __restore_processor_state(struct saved_context *ctxt) | 107 | void __restore_processor_state(struct saved_context *ctxt) |
109 | { | 108 | { |
110 | |||
111 | /* | 109 | /* |
112 | * control registers | 110 | * control registers |
113 | */ | 111 | */ |
@@ -117,6 +115,13 @@ void __restore_processor_state(struct saved_context *ctxt) | |||
117 | asm volatile ("movl %0, %%cr0" :: "r" (ctxt->cr0)); | 115 | asm volatile ("movl %0, %%cr0" :: "r" (ctxt->cr0)); |
118 | 116 | ||
119 | /* | 117 | /* |
118 | * now restore the descriptor tables to their proper values | ||
119 | * ltr is done i fix_processor_context(). | ||
120 | */ | ||
121 | asm volatile ("lgdt %0" :: "m" (ctxt->gdt_limit)); | ||
122 | asm volatile ("lidt %0" :: "m" (ctxt->idt_limit)); | ||
123 | |||
124 | /* | ||
120 | * segment registers | 125 | * segment registers |
121 | */ | 126 | */ |
122 | asm volatile ("movw %0, %%es" :: "r" (ctxt->es)); | 127 | asm volatile ("movw %0, %%es" :: "r" (ctxt->es)); |
@@ -125,14 +130,6 @@ void __restore_processor_state(struct saved_context *ctxt) | |||
125 | asm volatile ("movw %0, %%ss" :: "r" (ctxt->ss)); | 130 | asm volatile ("movw %0, %%ss" :: "r" (ctxt->ss)); |
126 | 131 | ||
127 | /* | 132 | /* |
128 | * now restore the descriptor tables to their proper values | ||
129 | * ltr is done i fix_processor_context(). | ||
130 | */ | ||
131 | asm volatile ("lgdt %0" :: "m" (ctxt->gdt_limit)); | ||
132 | asm volatile ("lidt %0" :: "m" (ctxt->idt_limit)); | ||
133 | asm volatile ("lldt %0" :: "m" (ctxt->ldt)); | ||
134 | |||
135 | /* | ||
136 | * sysenter MSRs | 133 | * sysenter MSRs |
137 | */ | 134 | */ |
138 | if (boot_cpu_has(X86_FEATURE_SEP)) | 135 | if (boot_cpu_has(X86_FEATURE_SEP)) |
diff --git a/arch/x86_64/kernel/suspend.c b/arch/x86_64/kernel/suspend.c index ebaa1e37d657..6c0f402e3a88 100644 --- a/arch/x86_64/kernel/suspend.c +++ b/arch/x86_64/kernel/suspend.c | |||
@@ -44,7 +44,6 @@ void __save_processor_state(struct saved_context *ctxt) | |||
44 | */ | 44 | */ |
45 | asm volatile ("sgdt %0" : "=m" (ctxt->gdt_limit)); | 45 | asm volatile ("sgdt %0" : "=m" (ctxt->gdt_limit)); |
46 | asm volatile ("sidt %0" : "=m" (ctxt->idt_limit)); | 46 | asm volatile ("sidt %0" : "=m" (ctxt->idt_limit)); |
47 | asm volatile ("sldt %0" : "=m" (ctxt->ldt)); | ||
48 | asm volatile ("str %0" : "=m" (ctxt->tr)); | 47 | asm volatile ("str %0" : "=m" (ctxt->tr)); |
49 | 48 | ||
50 | /* XMM0..XMM15 should be handled by kernel_fpu_begin(). */ | 49 | /* XMM0..XMM15 should be handled by kernel_fpu_begin(). */ |
@@ -69,6 +68,7 @@ void __save_processor_state(struct saved_context *ctxt) | |||
69 | asm volatile ("movq %%cr2, %0" : "=r" (ctxt->cr2)); | 68 | asm volatile ("movq %%cr2, %0" : "=r" (ctxt->cr2)); |
70 | asm volatile ("movq %%cr3, %0" : "=r" (ctxt->cr3)); | 69 | asm volatile ("movq %%cr3, %0" : "=r" (ctxt->cr3)); |
71 | asm volatile ("movq %%cr4, %0" : "=r" (ctxt->cr4)); | 70 | asm volatile ("movq %%cr4, %0" : "=r" (ctxt->cr4)); |
71 | asm volatile ("movq %%cr8, %0" : "=r" (ctxt->cr8)); | ||
72 | } | 72 | } |
73 | 73 | ||
74 | void save_processor_state(void) | 74 | void save_processor_state(void) |
@@ -90,12 +90,20 @@ void __restore_processor_state(struct saved_context *ctxt) | |||
90 | /* | 90 | /* |
91 | * control registers | 91 | * control registers |
92 | */ | 92 | */ |
93 | asm volatile ("movq %0, %%cr8" :: "r" (ctxt->cr8)); | ||
93 | asm volatile ("movq %0, %%cr4" :: "r" (ctxt->cr4)); | 94 | asm volatile ("movq %0, %%cr4" :: "r" (ctxt->cr4)); |
94 | asm volatile ("movq %0, %%cr3" :: "r" (ctxt->cr3)); | 95 | asm volatile ("movq %0, %%cr3" :: "r" (ctxt->cr3)); |
95 | asm volatile ("movq %0, %%cr2" :: "r" (ctxt->cr2)); | 96 | asm volatile ("movq %0, %%cr2" :: "r" (ctxt->cr2)); |
96 | asm volatile ("movq %0, %%cr0" :: "r" (ctxt->cr0)); | 97 | asm volatile ("movq %0, %%cr0" :: "r" (ctxt->cr0)); |
97 | 98 | ||
98 | /* | 99 | /* |
100 | * now restore the descriptor tables to their proper values | ||
101 | * ltr is done i fix_processor_context(). | ||
102 | */ | ||
103 | asm volatile ("lgdt %0" :: "m" (ctxt->gdt_limit)); | ||
104 | asm volatile ("lidt %0" :: "m" (ctxt->idt_limit)); | ||
105 | |||
106 | /* | ||
99 | * segment registers | 107 | * segment registers |
100 | */ | 108 | */ |
101 | asm volatile ("movw %0, %%ds" :: "r" (ctxt->ds)); | 109 | asm volatile ("movw %0, %%ds" :: "r" (ctxt->ds)); |
@@ -108,14 +116,6 @@ void __restore_processor_state(struct saved_context *ctxt) | |||
108 | wrmsrl(MSR_GS_BASE, ctxt->gs_base); | 116 | wrmsrl(MSR_GS_BASE, ctxt->gs_base); |
109 | wrmsrl(MSR_KERNEL_GS_BASE, ctxt->gs_kernel_base); | 117 | wrmsrl(MSR_KERNEL_GS_BASE, ctxt->gs_kernel_base); |
110 | 118 | ||
111 | /* | ||
112 | * now restore the descriptor tables to their proper values | ||
113 | * ltr is done i fix_processor_context(). | ||
114 | */ | ||
115 | asm volatile ("lgdt %0" :: "m" (ctxt->gdt_limit)); | ||
116 | asm volatile ("lidt %0" :: "m" (ctxt->idt_limit)); | ||
117 | asm volatile ("lldt %0" :: "m" (ctxt->ldt)); | ||
118 | |||
119 | fix_processor_context(); | 119 | fix_processor_context(); |
120 | 120 | ||
121 | do_fpu_end(); | 121 | do_fpu_end(); |