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x86: encode cpu# in IA32_TSC_AUX and size of GDTe#15

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NAKAMURA Gou
2016-03-28 14:34:40 +09:00
parent 0c53a5ca35
commit a587c8f5e5
6 changed files with 26 additions and 9 deletions
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8
arch/x86/kernel/syscall.c
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@@ -216,7 +216,9 @@ SYSCALL_DECLARE(rt_sigreturn)
struct sigsp ksigsp;
struct sigsp *sigsp;
asm("movq %%gs:132, %0" : "=r" (regs));
asm ("movq %%gs:(%1),%0"
: "=r"(regs)
: "r"(offsetof(struct x86_cpu_local_variables, tss.rsp0)));
--regs;
sigsp = (struct sigsp *)regs->gpr.rsp;
@@ -680,7 +682,9 @@ do_signal(unsigned long rc, void *regs0, struct thread *thread, struct sig_pendi
}
if(regs == NULL){ /* call from syscall */
asm("movq %%gs:132, %0" : "=r" (regs));
asm ("movq %%gs:(%1),%0"
: "=r"(regs)
: "r"(offsetof(struct x86_cpu_local_variables, tss.rsp0)));
--regs;
}
else{