diff options
Diffstat (limited to 'arch/x86/kernel/paravirt_patch_32.c')
-rw-r--r-- | arch/x86/kernel/paravirt_patch_32.c | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/arch/x86/kernel/paravirt_patch_32.c b/arch/x86/kernel/paravirt_patch_32.c deleted file mode 100644 index de138d3912e4..000000000000 --- a/arch/x86/kernel/paravirt_patch_32.c +++ /dev/null @@ -1,67 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <asm/paravirt.h> - -#ifdef CONFIG_PARAVIRT_XXL -DEF_NATIVE(irq, irq_disable, "cli"); -DEF_NATIVE(irq, irq_enable, "sti"); -DEF_NATIVE(irq, restore_fl, "push %eax; popf"); -DEF_NATIVE(irq, save_fl, "pushf; pop %eax"); -DEF_NATIVE(cpu, iret, "iret"); -DEF_NATIVE(mmu, read_cr2, "mov %cr2, %eax"); -DEF_NATIVE(mmu, write_cr3, "mov %eax, %cr3"); -DEF_NATIVE(mmu, read_cr3, "mov %cr3, %eax"); - -unsigned paravirt_patch_ident_64(void *insnbuf, unsigned len) -{ - /* arg in %edx:%eax, return in %edx:%eax */ - return 0; -} -#endif - -#if defined(CONFIG_PARAVIRT_SPINLOCKS) -DEF_NATIVE(lock, queued_spin_unlock, "movb $0, (%eax)"); -DEF_NATIVE(lock, vcpu_is_preempted, "xor %eax, %eax"); -#endif - -extern bool pv_is_native_spin_unlock(void); -extern bool pv_is_native_vcpu_is_preempted(void); - -unsigned native_patch(u8 type, void *ibuf, unsigned long addr, unsigned len) -{ -#define PATCH_SITE(ops, x) \ - case PARAVIRT_PATCH(ops.x): \ - return paravirt_patch_insns(ibuf, len, start_##ops##_##x, end_##ops##_##x) - - switch (type) { -#ifdef CONFIG_PARAVIRT_XXL - PATCH_SITE(irq, irq_disable); - PATCH_SITE(irq, irq_enable); - PATCH_SITE(irq, restore_fl); - PATCH_SITE(irq, save_fl); - PATCH_SITE(cpu, iret); - PATCH_SITE(mmu, read_cr2); - PATCH_SITE(mmu, read_cr3); - PATCH_SITE(mmu, write_cr3); -#endif -#if defined(CONFIG_PARAVIRT_SPINLOCKS) - case PARAVIRT_PATCH(lock.queued_spin_unlock): - if (pv_is_native_spin_unlock()) - return paravirt_patch_insns(ibuf, len, - start_lock_queued_spin_unlock, - end_lock_queued_spin_unlock); - break; - - case PARAVIRT_PATCH(lock.vcpu_is_preempted): - if (pv_is_native_vcpu_is_preempted()) - return paravirt_patch_insns(ibuf, len, - start_lock_vcpu_is_preempted, - end_lock_vcpu_is_preempted); - break; -#endif - - default: - break; - } -#undef PATCH_SITE - return paravirt_patch_default(type, ibuf, addr, len); -} |