vasilito
ff4ff35918
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
94 lines
2.2 KiB
C
94 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _ASM_X86_MICROCODE_H
|
|
#define _ASM_X86_MICROCODE_H
|
|
|
|
#include <asm/msr.h>
|
|
|
|
struct cpu_signature {
|
|
unsigned int sig;
|
|
unsigned int pf;
|
|
unsigned int rev;
|
|
};
|
|
|
|
struct ucode_cpu_info {
|
|
struct cpu_signature cpu_sig;
|
|
void *mc;
|
|
};
|
|
|
|
#ifdef CONFIG_MICROCODE
|
|
void load_ucode_bsp(void);
|
|
void load_ucode_ap(void);
|
|
void microcode_bsp_resume(void);
|
|
bool __init microcode_loader_disabled(void);
|
|
#else
|
|
static inline void load_ucode_bsp(void) { }
|
|
static inline void load_ucode_ap(void) { }
|
|
static inline void microcode_bsp_resume(void) { }
|
|
static inline bool __init microcode_loader_disabled(void) { return false; }
|
|
#endif
|
|
|
|
extern unsigned long initrd_start_early;
|
|
|
|
#ifdef CONFIG_CPU_SUP_INTEL
|
|
/* Intel specific microcode defines. Public for IFS */
|
|
struct microcode_header_intel {
|
|
unsigned int hdrver;
|
|
unsigned int rev;
|
|
unsigned int date;
|
|
unsigned int sig;
|
|
unsigned int cksum;
|
|
unsigned int ldrver;
|
|
unsigned int pf;
|
|
unsigned int datasize;
|
|
unsigned int totalsize;
|
|
unsigned int metasize;
|
|
unsigned int min_req_ver;
|
|
unsigned int reserved;
|
|
};
|
|
|
|
struct microcode_intel {
|
|
struct microcode_header_intel hdr;
|
|
unsigned int bits[];
|
|
};
|
|
|
|
#define DEFAULT_UCODE_DATASIZE (2000)
|
|
#define MC_HEADER_SIZE (sizeof(struct microcode_header_intel))
|
|
#define MC_HEADER_TYPE_MICROCODE 1
|
|
#define MC_HEADER_TYPE_IFS 2
|
|
|
|
static inline int intel_microcode_get_datasize(struct microcode_header_intel *hdr)
|
|
{
|
|
return hdr->datasize ? : DEFAULT_UCODE_DATASIZE;
|
|
}
|
|
|
|
static inline u32 intel_get_microcode_revision(void)
|
|
{
|
|
u32 rev, dummy;
|
|
|
|
native_wrmsrq(MSR_IA32_UCODE_REV, 0);
|
|
|
|
/* As documented in the SDM: Do a CPUID 1 here */
|
|
native_cpuid_eax(1);
|
|
|
|
/* get the current revision from MSR 0x8B */
|
|
native_rdmsr(MSR_IA32_UCODE_REV, dummy, rev);
|
|
|
|
return rev;
|
|
}
|
|
#endif /* !CONFIG_CPU_SUP_INTEL */
|
|
|
|
bool microcode_nmi_handler(void);
|
|
void microcode_offline_nmi_handler(void);
|
|
|
|
#ifdef CONFIG_MICROCODE_LATE_LOADING
|
|
DECLARE_STATIC_KEY_FALSE(microcode_nmi_handler_enable);
|
|
static __always_inline bool microcode_nmi_handler_enabled(void)
|
|
{
|
|
return static_branch_unlikely(µcode_nmi_handler_enable);
|
|
}
|
|
#else
|
|
static __always_inline bool microcode_nmi_handler_enabled(void) { return false; }
|
|
#endif
|
|
|
|
#endif /* _ASM_X86_MICROCODE_H */
|