bd53147db8
The kernel only ever supports 1 version of the boot protocol so there is no need to check the boot protocol revision to see if a feature is supported. Both x86 and x86_64 support the same boot protocol so we need to implement the KEEP_SEGMENTS on x86_64 as well. It isn't just paravirt bootloaders that could use this functionality. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Vivek Goyal <vgoyal@in.ibm.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Zachary Amsden <zach@vmware.com> Cc: Andi Kleen <ak@suse.de> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
124 lines
2.9 KiB
C
124 lines
2.9 KiB
C
/*
|
|
* Generate definitions needed by assembly language modules.
|
|
* This code generates raw asm output which is post-processed to extract
|
|
* and format the required data.
|
|
*/
|
|
|
|
#include <linux/crypto.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/stddef.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/hardirq.h>
|
|
#include <linux/suspend.h>
|
|
#include <asm/pda.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/segment.h>
|
|
#include <asm/thread_info.h>
|
|
#include <asm/ia32.h>
|
|
#include <asm/bootparam.h>
|
|
|
|
#define DEFINE(sym, val) \
|
|
asm volatile("\n->" #sym " %0 " #val : : "i" (val))
|
|
|
|
#define BLANK() asm volatile("\n->" : : )
|
|
|
|
#define OFFSET(sym, str, mem) \
|
|
DEFINE(sym, offsetof(struct str, mem))
|
|
|
|
#define __NO_STUBS 1
|
|
#undef __SYSCALL
|
|
#undef _ASM_X86_64_UNISTD_H_
|
|
#define __SYSCALL(nr, sym) [nr] = 1,
|
|
static char syscalls[] = {
|
|
#include <asm/unistd.h>
|
|
};
|
|
|
|
int main(void)
|
|
{
|
|
#define ENTRY(entry) DEFINE(tsk_ ## entry, offsetof(struct task_struct, entry))
|
|
ENTRY(state);
|
|
ENTRY(flags);
|
|
ENTRY(thread);
|
|
ENTRY(pid);
|
|
BLANK();
|
|
#undef ENTRY
|
|
#define ENTRY(entry) DEFINE(threadinfo_ ## entry, offsetof(struct thread_info, entry))
|
|
ENTRY(flags);
|
|
ENTRY(addr_limit);
|
|
ENTRY(preempt_count);
|
|
ENTRY(status);
|
|
BLANK();
|
|
#undef ENTRY
|
|
#define ENTRY(entry) DEFINE(pda_ ## entry, offsetof(struct x8664_pda, entry))
|
|
ENTRY(kernelstack);
|
|
ENTRY(oldrsp);
|
|
ENTRY(pcurrent);
|
|
ENTRY(irqcount);
|
|
ENTRY(cpunumber);
|
|
ENTRY(irqstackptr);
|
|
ENTRY(data_offset);
|
|
BLANK();
|
|
#undef ENTRY
|
|
#ifdef CONFIG_IA32_EMULATION
|
|
#define ENTRY(entry) DEFINE(IA32_SIGCONTEXT_ ## entry, offsetof(struct sigcontext_ia32, entry))
|
|
ENTRY(eax);
|
|
ENTRY(ebx);
|
|
ENTRY(ecx);
|
|
ENTRY(edx);
|
|
ENTRY(esi);
|
|
ENTRY(edi);
|
|
ENTRY(ebp);
|
|
ENTRY(esp);
|
|
ENTRY(eip);
|
|
BLANK();
|
|
#undef ENTRY
|
|
DEFINE(IA32_RT_SIGFRAME_sigcontext,
|
|
offsetof (struct rt_sigframe32, uc.uc_mcontext));
|
|
BLANK();
|
|
#endif
|
|
DEFINE(pbe_address, offsetof(struct pbe, address));
|
|
DEFINE(pbe_orig_address, offsetof(struct pbe, orig_address));
|
|
DEFINE(pbe_next, offsetof(struct pbe, next));
|
|
BLANK();
|
|
#define ENTRY(entry) DEFINE(pt_regs_ ## entry, offsetof(struct pt_regs, entry))
|
|
ENTRY(rbx);
|
|
ENTRY(rbx);
|
|
ENTRY(rcx);
|
|
ENTRY(rdx);
|
|
ENTRY(rsp);
|
|
ENTRY(rbp);
|
|
ENTRY(rsi);
|
|
ENTRY(rdi);
|
|
ENTRY(r8);
|
|
ENTRY(r9);
|
|
ENTRY(r10);
|
|
ENTRY(r11);
|
|
ENTRY(r12);
|
|
ENTRY(r13);
|
|
ENTRY(r14);
|
|
ENTRY(r15);
|
|
ENTRY(eflags);
|
|
BLANK();
|
|
#undef ENTRY
|
|
#define ENTRY(entry) DEFINE(saved_context_ ## entry, offsetof(struct saved_context, entry))
|
|
ENTRY(cr0);
|
|
ENTRY(cr2);
|
|
ENTRY(cr3);
|
|
ENTRY(cr4);
|
|
ENTRY(cr8);
|
|
BLANK();
|
|
#undef ENTRY
|
|
DEFINE(TSS_ist, offsetof(struct tss_struct, ist));
|
|
BLANK();
|
|
DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx));
|
|
BLANK();
|
|
DEFINE(__NR_syscall_max, sizeof(syscalls) - 1);
|
|
|
|
BLANK();
|
|
OFFSET(BP_scratch, boot_params, scratch);
|
|
OFFSET(BP_loadflags, boot_params, hdr.loadflags);
|
|
OFFSET(BP_hardware_subarch, boot_params, hdr.hardware_subarch);
|
|
OFFSET(BP_version, boot_params, hdr.version);
|
|
return 0;
|
|
}
|