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-rw-r--r--ANDROID_3.4.5/arch/x86/include/asm/paravirt.h1051
1 files changed, 0 insertions, 1051 deletions
diff --git a/ANDROID_3.4.5/arch/x86/include/asm/paravirt.h b/ANDROID_3.4.5/arch/x86/include/asm/paravirt.h
deleted file mode 100644
index aa0f9130..00000000
--- a/ANDROID_3.4.5/arch/x86/include/asm/paravirt.h
+++ /dev/null
@@ -1,1051 +0,0 @@
-#ifndef _ASM_X86_PARAVIRT_H
-#define _ASM_X86_PARAVIRT_H
-/* Various instructions on x86 need to be replaced for
- * para-virtualization: those hooks are defined here. */
-
-#ifdef CONFIG_PARAVIRT
-#include <asm/pgtable_types.h>
-#include <asm/asm.h>
-
-#include <asm/paravirt_types.h>
-
-#ifndef __ASSEMBLY__
-#include <linux/bug.h>
-#include <linux/types.h>
-#include <linux/cpumask.h>
-
-static inline int paravirt_enabled(void)
-{
- return pv_info.paravirt_enabled;
-}
-
-static inline void load_sp0(struct tss_struct *tss,
- struct thread_struct *thread)
-{
- PVOP_VCALL2(pv_cpu_ops.load_sp0, tss, thread);
-}
-
-/* The paravirtualized CPUID instruction. */
-static inline void __cpuid(unsigned int *eax, unsigned int *ebx,
- unsigned int *ecx, unsigned int *edx)
-{
- PVOP_VCALL4(pv_cpu_ops.cpuid, eax, ebx, ecx, edx);
-}
-
-/*
- * These special macros can be used to get or set a debugging register
- */
-static inline unsigned long paravirt_get_debugreg(int reg)
-{
- return PVOP_CALL1(unsigned long, pv_cpu_ops.get_debugreg, reg);
-}
-#define get_debugreg(var, reg) var = paravirt_get_debugreg(reg)
-static inline void set_debugreg(unsigned long val, int reg)
-{
- PVOP_VCALL2(pv_cpu_ops.set_debugreg, reg, val);
-}
-
-static inline void clts(void)
-{
- PVOP_VCALL0(pv_cpu_ops.clts);
-}
-
-static inline unsigned long read_cr0(void)
-{
- return PVOP_CALL0(unsigned long, pv_cpu_ops.read_cr0);
-}
-
-static inline void write_cr0(unsigned long x)
-{
- PVOP_VCALL1(pv_cpu_ops.write_cr0, x);
-}
-
-static inline unsigned long read_cr2(void)
-{
- return PVOP_CALL0(unsigned long, pv_mmu_ops.read_cr2);
-}
-
-static inline void write_cr2(unsigned long x)
-{
- PVOP_VCALL1(pv_mmu_ops.write_cr2, x);
-}
-
-static inline unsigned long read_cr3(void)
-{
- return PVOP_CALL0(unsigned long, pv_mmu_ops.read_cr3);
-}
-
-static inline void write_cr3(unsigned long x)
-{
- PVOP_VCALL1(pv_mmu_ops.write_cr3, x);
-}
-
-static inline unsigned long read_cr4(void)
-{
- return PVOP_CALL0(unsigned long, pv_cpu_ops.read_cr4);
-}
-static inline unsigned long read_cr4_safe(void)
-{
- return PVOP_CALL0(unsigned long, pv_cpu_ops.read_cr4_safe);
-}
-
-static inline void write_cr4(unsigned long x)
-{
- PVOP_VCALL1(pv_cpu_ops.write_cr4, x);
-}
-
-#ifdef CONFIG_X86_64
-static inline unsigned long read_cr8(void)
-{
- return PVOP_CALL0(unsigned long, pv_cpu_ops.read_cr8);
-}
-
-static inline void write_cr8(unsigned long x)
-{
- PVOP_VCALL1(pv_cpu_ops.write_cr8, x);
-}
-#endif
-
-static inline void arch_safe_halt(void)
-{
- PVOP_VCALL0(pv_irq_ops.safe_halt);
-}
-
-static inline void halt(void)
-{
- PVOP_VCALL0(pv_irq_ops.halt);
-}
-
-static inline void wbinvd(void)
-{
- PVOP_VCALL0(pv_cpu_ops.wbinvd);
-}
-
-#define get_kernel_rpl() (pv_info.kernel_rpl)
-
-static inline u64 paravirt_read_msr(unsigned msr, int *err)
-{
- return PVOP_CALL2(u64, pv_cpu_ops.read_msr, msr, err);
-}
-
-static inline int paravirt_rdmsr_regs(u32 *regs)
-{
- return PVOP_CALL1(int, pv_cpu_ops.rdmsr_regs, regs);
-}
-
-static inline int paravirt_write_msr(unsigned msr, unsigned low, unsigned high)
-{
- return PVOP_CALL3(int, pv_cpu_ops.write_msr, msr, low, high);
-}
-
-static inline int paravirt_wrmsr_regs(u32 *regs)
-{
- return PVOP_CALL1(int, pv_cpu_ops.wrmsr_regs, regs);
-}
-
-/* These should all do BUG_ON(_err), but our headers are too tangled. */
-#define rdmsr(msr, val1, val2) \
-do { \
- int _err; \
- u64 _l = paravirt_read_msr(msr, &_err); \
- val1 = (u32)_l; \
- val2 = _l >> 32; \
-} while (0)
-
-#define wrmsr(msr, val1, val2) \
-do { \
- paravirt_write_msr(msr, val1, val2); \
-} while (0)
-
-#define rdmsrl(msr, val) \
-do { \
- int _err; \
- val = paravirt_read_msr(msr, &_err); \
-} while (0)
-
-#define wrmsrl(msr, val) wrmsr(msr, (u32)((u64)(val)), ((u64)(val))>>32)
-#define wrmsr_safe(msr, a, b) paravirt_write_msr(msr, a, b)
-
-/* rdmsr with exception handling */
-#define rdmsr_safe(msr, a, b) \
-({ \
- int _err; \
- u64 _l = paravirt_read_msr(msr, &_err); \
- (*a) = (u32)_l; \
- (*b) = _l >> 32; \
- _err; \
-})
-
-#define rdmsr_safe_regs(regs) paravirt_rdmsr_regs(regs)
-#define wrmsr_safe_regs(regs) paravirt_wrmsr_regs(regs)
-
-static inline int rdmsrl_safe(unsigned msr, unsigned long long *p)
-{
- int err;
-
- *p = paravirt_read_msr(msr, &err);
- return err;
-}
-static inline int rdmsrl_amd_safe(unsigned msr, unsigned long long *p)
-{
- u32 gprs[8] = { 0 };
- int err;
-
- gprs[1] = msr;
- gprs[7] = 0x9c5a203a;
-
- err = paravirt_rdmsr_regs(gprs);
-
- *p = gprs[0] | ((u64)gprs[2] << 32);
-
- return err;
-}
-
-static inline int wrmsrl_amd_safe(unsigned msr, unsigned long long val)
-{
- u32 gprs[8] = { 0 };
-
- gprs[0] = (u32)val;
- gprs[1] = msr;
- gprs[2] = val >> 32;
- gprs[7] = 0x9c5a203a;
-
- return paravirt_wrmsr_regs(gprs);
-}
-
-static inline u64 paravirt_read_tsc(void)
-{
- return PVOP_CALL0(u64, pv_cpu_ops.read_tsc);
-}
-
-#define rdtscl(low) \
-do { \
- u64 _l = paravirt_read_tsc(); \
- low = (int)_l; \
-} while (0)
-
-#define rdtscll(val) (val = paravirt_read_tsc())
-
-static inline unsigned long long paravirt_sched_clock(void)
-{
- return PVOP_CALL0(unsigned long long, pv_time_ops.sched_clock);
-}
-
-struct static_key;
-extern struct static_key paravirt_steal_enabled;
-extern struct static_key paravirt_steal_rq_enabled;
-
-static inline u64 paravirt_steal_clock(int cpu)
-{
- return PVOP_CALL1(u64, pv_time_ops.steal_clock, cpu);
-}
-
-static inline unsigned long long paravirt_read_pmc(int counter)
-{
- return PVOP_CALL1(u64, pv_cpu_ops.read_pmc, counter);
-}
-
-#define rdpmc(counter, low, high) \
-do { \
- u64 _l = paravirt_read_pmc(counter); \
- low = (u32)_l; \
- high = _l >> 32; \
-} while (0)
-
-static inline unsigned long long paravirt_rdtscp(unsigned int *aux)
-{
- return PVOP_CALL1(u64, pv_cpu_ops.read_tscp, aux);
-}
-
-#define rdtscp(low, high, aux) \
-do { \
- int __aux; \
- unsigned long __val = paravirt_rdtscp(&__aux); \
- (low) = (u32)__val; \
- (high) = (u32)(__val >> 32); \
- (aux) = __aux; \
-} while (0)
-
-#define rdtscpll(val, aux) \
-do { \
- unsigned long __aux; \
- val = paravirt_rdtscp(&__aux); \
- (aux) = __aux; \
-} while (0)
-
-static inline void paravirt_alloc_ldt(struct desc_struct *ldt, unsigned entries)
-{
- PVOP_VCALL2(pv_cpu_ops.alloc_ldt, ldt, entries);
-}
-
-static inline void paravirt_free_ldt(struct desc_struct *ldt, unsigned entries)
-{
- PVOP_VCALL2(pv_cpu_ops.free_ldt, ldt, entries);
-}
-
-static inline void load_TR_desc(void)
-{
- PVOP_VCALL0(pv_cpu_ops.load_tr_desc);
-}
-static inline void load_gdt(const struct desc_ptr *dtr)
-{
- PVOP_VCALL1(pv_cpu_ops.load_gdt, dtr);
-}
-static inline void load_idt(const struct desc_ptr *dtr)
-{
- PVOP_VCALL1(pv_cpu_ops.load_idt, dtr);
-}
-static inline void set_ldt(const void *addr, unsigned entries)
-{
- PVOP_VCALL2(pv_cpu_ops.set_ldt, addr, entries);
-}
-static inline void store_gdt(struct desc_ptr *dtr)
-{
- PVOP_VCALL1(pv_cpu_ops.store_gdt, dtr);
-}
-static inline void store_idt(struct desc_ptr *dtr)
-{
- PVOP_VCALL1(pv_cpu_ops.store_idt, dtr);
-}
-static inline unsigned long paravirt_store_tr(void)
-{
- return PVOP_CALL0(unsigned long, pv_cpu_ops.store_tr);
-}
-#define store_tr(tr) ((tr) = paravirt_store_tr())
-static inline void load_TLS(struct thread_struct *t, unsigned cpu)
-{
- PVOP_VCALL2(pv_cpu_ops.load_tls, t, cpu);
-}
-
-#ifdef CONFIG_X86_64
-static inline void load_gs_index(unsigned int gs)
-{
- PVOP_VCALL1(pv_cpu_ops.load_gs_index, gs);
-}
-#endif
-
-static inline void write_ldt_entry(struct desc_struct *dt, int entry,
- const void *desc)
-{
- PVOP_VCALL3(pv_cpu_ops.write_ldt_entry, dt, entry, desc);
-}
-
-static inline void write_gdt_entry(struct desc_struct *dt, int entry,
- void *desc, int type)
-{
- PVOP_VCALL4(pv_cpu_ops.write_gdt_entry, dt, entry, desc, type);
-}
-
-static inline void write_idt_entry(gate_desc *dt, int entry, const gate_desc *g)
-{
- PVOP_VCALL3(pv_cpu_ops.write_idt_entry, dt, entry, g);
-}
-static inline void set_iopl_mask(unsigned mask)
-{
- PVOP_VCALL1(pv_cpu_ops.set_iopl_mask, mask);
-}
-
-/* The paravirtualized I/O functions */
-static inline void slow_down_io(void)
-{
- pv_cpu_ops.io_delay();
-#ifdef REALLY_SLOW_IO
- pv_cpu_ops.io_delay();
- pv_cpu_ops.io_delay();
- pv_cpu_ops.io_delay();
-#endif
-}
-
-#ifdef CONFIG_SMP
-static inline void startup_ipi_hook(int phys_apicid, unsigned long start_eip,
- unsigned long start_esp)
-{
- PVOP_VCALL3(pv_apic_ops.startup_ipi_hook,
- phys_apicid, start_eip, start_esp);
-}
-#endif
-
-static inline void paravirt_activate_mm(struct mm_struct *prev,
- struct mm_struct *next)
-{
- PVOP_VCALL2(pv_mmu_ops.activate_mm, prev, next);
-}
-
-static inline void arch_dup_mmap(struct mm_struct *oldmm,
- struct mm_struct *mm)
-{
- PVOP_VCALL2(pv_mmu_ops.dup_mmap, oldmm, mm);
-}
-
-static inline void arch_exit_mmap(struct mm_struct *mm)
-{
- PVOP_VCALL1(pv_mmu_ops.exit_mmap, mm);
-}
-
-static inline void __flush_tlb(void)
-{
- PVOP_VCALL0(pv_mmu_ops.flush_tlb_user);
-}
-static inline void __flush_tlb_global(void)
-{
- PVOP_VCALL0(pv_mmu_ops.flush_tlb_kernel);
-}
-static inline void __flush_tlb_single(unsigned long addr)
-{
- PVOP_VCALL1(pv_mmu_ops.flush_tlb_single, addr);
-}
-
-static inline void flush_tlb_others(const struct cpumask *cpumask,
- struct mm_struct *mm,
- unsigned long va)
-{
- PVOP_VCALL3(pv_mmu_ops.flush_tlb_others, cpumask, mm, va);
-}
-
-static inline int paravirt_pgd_alloc(struct mm_struct *mm)
-{
- return PVOP_CALL1(int, pv_mmu_ops.pgd_alloc, mm);
-}
-
-static inline void paravirt_pgd_free(struct mm_struct *mm, pgd_t *pgd)
-{
- PVOP_VCALL2(pv_mmu_ops.pgd_free, mm, pgd);
-}
-
-static inline void paravirt_alloc_pte(struct mm_struct *mm, unsigned long pfn)
-{
- PVOP_VCALL2(pv_mmu_ops.alloc_pte, mm, pfn);
-}
-static inline void paravirt_release_pte(unsigned long pfn)
-{
- PVOP_VCALL1(pv_mmu_ops.release_pte, pfn);
-}
-
-static inline void paravirt_alloc_pmd(struct mm_struct *mm, unsigned long pfn)
-{
- PVOP_VCALL2(pv_mmu_ops.alloc_pmd, mm, pfn);
-}
-
-static inline void paravirt_release_pmd(unsigned long pfn)
-{
- PVOP_VCALL1(pv_mmu_ops.release_pmd, pfn);
-}
-
-static inline void paravirt_alloc_pud(struct mm_struct *mm, unsigned long pfn)
-{
- PVOP_VCALL2(pv_mmu_ops.alloc_pud, mm, pfn);
-}
-static inline void paravirt_release_pud(unsigned long pfn)
-{
- PVOP_VCALL1(pv_mmu_ops.release_pud, pfn);
-}
-
-static inline void pte_update(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
-{
- PVOP_VCALL3(pv_mmu_ops.pte_update, mm, addr, ptep);
-}
-static inline void pmd_update(struct mm_struct *mm, unsigned long addr,
- pmd_t *pmdp)
-{
- PVOP_VCALL3(pv_mmu_ops.pmd_update, mm, addr, pmdp);
-}
-
-static inline void pte_update_defer(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
-{
- PVOP_VCALL3(pv_mmu_ops.pte_update_defer, mm, addr, ptep);
-}
-
-static inline void pmd_update_defer(struct mm_struct *mm, unsigned long addr,
- pmd_t *pmdp)
-{
- PVOP_VCALL3(pv_mmu_ops.pmd_update_defer, mm, addr, pmdp);
-}
-
-static inline pte_t __pte(pteval_t val)
-{
- pteval_t ret;
-
- if (sizeof(pteval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pteval_t,
- pv_mmu_ops.make_pte,
- val, (u64)val >> 32);
- else
- ret = PVOP_CALLEE1(pteval_t,
- pv_mmu_ops.make_pte,
- val);
-
- return (pte_t) { .pte = ret };
-}
-
-static inline pteval_t pte_val(pte_t pte)
-{
- pteval_t ret;
-
- if (sizeof(pteval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pteval_t, pv_mmu_ops.pte_val,
- pte.pte, (u64)pte.pte >> 32);
- else
- ret = PVOP_CALLEE1(pteval_t, pv_mmu_ops.pte_val,
- pte.pte);
-
- return ret;
-}
-
-static inline pgd_t __pgd(pgdval_t val)
-{
- pgdval_t ret;
-
- if (sizeof(pgdval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pgdval_t, pv_mmu_ops.make_pgd,
- val, (u64)val >> 32);
- else
- ret = PVOP_CALLEE1(pgdval_t, pv_mmu_ops.make_pgd,
- val);
-
- return (pgd_t) { ret };
-}
-
-static inline pgdval_t pgd_val(pgd_t pgd)
-{
- pgdval_t ret;
-
- if (sizeof(pgdval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pgdval_t, pv_mmu_ops.pgd_val,
- pgd.pgd, (u64)pgd.pgd >> 32);
- else
- ret = PVOP_CALLEE1(pgdval_t, pv_mmu_ops.pgd_val,
- pgd.pgd);
-
- return ret;
-}
-
-#define __HAVE_ARCH_PTEP_MODIFY_PROT_TRANSACTION
-static inline pte_t ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
-{
- pteval_t ret;
-
- ret = PVOP_CALL3(pteval_t, pv_mmu_ops.ptep_modify_prot_start,
- mm, addr, ptep);
-
- return (pte_t) { .pte = ret };
-}
-
-static inline void ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pte)
-{
- if (sizeof(pteval_t) > sizeof(long))
- /* 5 arg words */
- pv_mmu_ops.ptep_modify_prot_commit(mm, addr, ptep, pte);
- else
- PVOP_VCALL4(pv_mmu_ops.ptep_modify_prot_commit,
- mm, addr, ptep, pte.pte);
-}
-
-static inline void set_pte(pte_t *ptep, pte_t pte)
-{
- if (sizeof(pteval_t) > sizeof(long))
- PVOP_VCALL3(pv_mmu_ops.set_pte, ptep,
- pte.pte, (u64)pte.pte >> 32);
- else
- PVOP_VCALL2(pv_mmu_ops.set_pte, ptep,
- pte.pte);
-}
-
-static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pte)
-{
- if (sizeof(pteval_t) > sizeof(long))
- /* 5 arg words */
- pv_mmu_ops.set_pte_at(mm, addr, ptep, pte);
- else
- PVOP_VCALL4(pv_mmu_ops.set_pte_at, mm, addr, ptep, pte.pte);
-}
-
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
- pmd_t *pmdp, pmd_t pmd)
-{
- if (sizeof(pmdval_t) > sizeof(long))
- /* 5 arg words */
- pv_mmu_ops.set_pmd_at(mm, addr, pmdp, pmd);
- else
- PVOP_VCALL4(pv_mmu_ops.set_pmd_at, mm, addr, pmdp,
- native_pmd_val(pmd));
-}
-#endif
-
-static inline void set_pmd(pmd_t *pmdp, pmd_t pmd)
-{
- pmdval_t val = native_pmd_val(pmd);
-
- if (sizeof(pmdval_t) > sizeof(long))
- PVOP_VCALL3(pv_mmu_ops.set_pmd, pmdp, val, (u64)val >> 32);
- else
- PVOP_VCALL2(pv_mmu_ops.set_pmd, pmdp, val);
-}
-
-#if PAGETABLE_LEVELS >= 3
-static inline pmd_t __pmd(pmdval_t val)
-{
- pmdval_t ret;
-
- if (sizeof(pmdval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pmdval_t, pv_mmu_ops.make_pmd,
- val, (u64)val >> 32);
- else
- ret = PVOP_CALLEE1(pmdval_t, pv_mmu_ops.make_pmd,
- val);
-
- return (pmd_t) { ret };
-}
-
-static inline pmdval_t pmd_val(pmd_t pmd)
-{
- pmdval_t ret;
-
- if (sizeof(pmdval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pmdval_t, pv_mmu_ops.pmd_val,
- pmd.pmd, (u64)pmd.pmd >> 32);
- else
- ret = PVOP_CALLEE1(pmdval_t, pv_mmu_ops.pmd_val,
- pmd.pmd);
-
- return ret;
-}
-
-static inline void set_pud(pud_t *pudp, pud_t pud)
-{
- pudval_t val = native_pud_val(pud);
-
- if (sizeof(pudval_t) > sizeof(long))
- PVOP_VCALL3(pv_mmu_ops.set_pud, pudp,
- val, (u64)val >> 32);
- else
- PVOP_VCALL2(pv_mmu_ops.set_pud, pudp,
- val);
-}
-#if PAGETABLE_LEVELS == 4
-static inline pud_t __pud(pudval_t val)
-{
- pudval_t ret;
-
- if (sizeof(pudval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pudval_t, pv_mmu_ops.make_pud,
- val, (u64)val >> 32);
- else
- ret = PVOP_CALLEE1(pudval_t, pv_mmu_ops.make_pud,
- val);
-
- return (pud_t) { ret };
-}
-
-static inline pudval_t pud_val(pud_t pud)
-{
- pudval_t ret;
-
- if (sizeof(pudval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pudval_t, pv_mmu_ops.pud_val,
- pud.pud, (u64)pud.pud >> 32);
- else
- ret = PVOP_CALLEE1(pudval_t, pv_mmu_ops.pud_val,
- pud.pud);
-
- return ret;
-}
-
-static inline void set_pgd(pgd_t *pgdp, pgd_t pgd)
-{
- pgdval_t val = native_pgd_val(pgd);
-
- if (sizeof(pgdval_t) > sizeof(long))
- PVOP_VCALL3(pv_mmu_ops.set_pgd, pgdp,
- val, (u64)val >> 32);
- else
- PVOP_VCALL2(pv_mmu_ops.set_pgd, pgdp,
- val);
-}
-
-static inline void pgd_clear(pgd_t *pgdp)
-{
- set_pgd(pgdp, __pgd(0));
-}
-
-static inline void pud_clear(pud_t *pudp)
-{
- set_pud(pudp, __pud(0));
-}
-
-#endif /* PAGETABLE_LEVELS == 4 */
-
-#endif /* PAGETABLE_LEVELS >= 3 */
-
-#ifdef CONFIG_X86_PAE
-/* Special-case pte-setting operations for PAE, which can't update a
- 64-bit pte atomically */
-static inline void set_pte_atomic(pte_t *ptep, pte_t pte)
-{
- PVOP_VCALL3(pv_mmu_ops.set_pte_atomic, ptep,
- pte.pte, pte.pte >> 32);
-}
-
-static inline void pte_clear(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
-{
- PVOP_VCALL3(pv_mmu_ops.pte_clear, mm, addr, ptep);
-}
-
-static inline void pmd_clear(pmd_t *pmdp)
-{
- PVOP_VCALL1(pv_mmu_ops.pmd_clear, pmdp);
-}
-#else /* !CONFIG_X86_PAE */
-static inline void set_pte_atomic(pte_t *ptep, pte_t pte)
-{
- set_pte(ptep, pte);
-}
-
-static inline void pte_clear(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
-{
- set_pte_at(mm, addr, ptep, __pte(0));
-}
-
-static inline void pmd_clear(pmd_t *pmdp)
-{
- set_pmd(pmdp, __pmd(0));
-}
-#endif /* CONFIG_X86_PAE */
-
-#define __HAVE_ARCH_START_CONTEXT_SWITCH
-static inline void arch_start_context_switch(struct task_struct *prev)
-{
- PVOP_VCALL1(pv_cpu_ops.start_context_switch, prev);
-}
-
-static inline void arch_end_context_switch(struct task_struct *next)
-{
- PVOP_VCALL1(pv_cpu_ops.end_context_switch, next);
-}
-
-#define __HAVE_ARCH_ENTER_LAZY_MMU_MODE
-static inline void arch_enter_lazy_mmu_mode(void)
-{
- PVOP_VCALL0(pv_mmu_ops.lazy_mode.enter);
-}
-
-static inline void arch_leave_lazy_mmu_mode(void)
-{
- PVOP_VCALL0(pv_mmu_ops.lazy_mode.leave);
-}
-
-void arch_flush_lazy_mmu_mode(void);
-
-static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
- phys_addr_t phys, pgprot_t flags)
-{
- pv_mmu_ops.set_fixmap(idx, phys, flags);
-}
-
-#if defined(CONFIG_SMP) && defined(CONFIG_PARAVIRT_SPINLOCKS)
-
-static inline int arch_spin_is_locked(struct arch_spinlock *lock)
-{
- return PVOP_CALL1(int, pv_lock_ops.spin_is_locked, lock);
-}
-
-static inline int arch_spin_is_contended(struct arch_spinlock *lock)
-{
- return PVOP_CALL1(int, pv_lock_ops.spin_is_contended, lock);
-}
-#define arch_spin_is_contended arch_spin_is_contended
-
-static __always_inline void arch_spin_lock(struct arch_spinlock *lock)
-{
- PVOP_VCALL1(pv_lock_ops.spin_lock, lock);
-}
-
-static __always_inline void arch_spin_lock_flags(struct arch_spinlock *lock,
- unsigned long flags)
-{
- PVOP_VCALL2(pv_lock_ops.spin_lock_flags, lock, flags);
-}
-
-static __always_inline int arch_spin_trylock(struct arch_spinlock *lock)
-{
- return PVOP_CALL1(int, pv_lock_ops.spin_trylock, lock);
-}
-
-static __always_inline void arch_spin_unlock(struct arch_spinlock *lock)
-{
- PVOP_VCALL1(pv_lock_ops.spin_unlock, lock);
-}
-
-#endif
-
-#ifdef CONFIG_X86_32
-#define PV_SAVE_REGS "pushl %ecx; pushl %edx;"
-#define PV_RESTORE_REGS "popl %edx; popl %ecx;"
-
-/* save and restore all caller-save registers, except return value */
-#define PV_SAVE_ALL_CALLER_REGS "pushl %ecx;"
-#define PV_RESTORE_ALL_CALLER_REGS "popl %ecx;"
-
-#define PV_FLAGS_ARG "0"
-#define PV_EXTRA_CLOBBERS
-#define PV_VEXTRA_CLOBBERS
-#else
-/* save and restore all caller-save registers, except return value */
-#define PV_SAVE_ALL_CALLER_REGS \
- "push %rcx;" \
- "push %rdx;" \
- "push %rsi;" \
- "push %rdi;" \
- "push %r8;" \
- "push %r9;" \
- "push %r10;" \
- "push %r11;"
-#define PV_RESTORE_ALL_CALLER_REGS \
- "pop %r11;" \
- "pop %r10;" \
- "pop %r9;" \
- "pop %r8;" \
- "pop %rdi;" \
- "pop %rsi;" \
- "pop %rdx;" \
- "pop %rcx;"
-
-/* We save some registers, but all of them, that's too much. We clobber all
- * caller saved registers but the argument parameter */
-#define PV_SAVE_REGS "pushq %%rdi;"
-#define PV_RESTORE_REGS "popq %%rdi;"
-#define PV_EXTRA_CLOBBERS EXTRA_CLOBBERS, "rcx" , "rdx", "rsi"
-#define PV_VEXTRA_CLOBBERS EXTRA_CLOBBERS, "rdi", "rcx" , "rdx", "rsi"
-#define PV_FLAGS_ARG "D"
-#endif
-
-/*
- * Generate a thunk around a function which saves all caller-save
- * registers except for the return value. This allows C functions to
- * be called from assembler code where fewer than normal registers are
- * available. It may also help code generation around calls from C
- * code if the common case doesn't use many registers.
- *
- * When a callee is wrapped in a thunk, the caller can assume that all
- * arg regs and all scratch registers are preserved across the
- * call. The return value in rax/eax will not be saved, even for void
- * functions.
- */
-#define PV_CALLEE_SAVE_REGS_THUNK(func) \
- extern typeof(func) __raw_callee_save_##func; \
- static void *__##func##__ __used = func; \
- \
- asm(".pushsection .text;" \
- "__raw_callee_save_" #func ": " \
- PV_SAVE_ALL_CALLER_REGS \
- "call " #func ";" \
- PV_RESTORE_ALL_CALLER_REGS \
- "ret;" \
- ".popsection")
-
-/* Get a reference to a callee-save function */
-#define PV_CALLEE_SAVE(func) \
- ((struct paravirt_callee_save) { __raw_callee_save_##func })
-
-/* Promise that "func" already uses the right calling convention */
-#define __PV_IS_CALLEE_SAVE(func) \
- ((struct paravirt_callee_save) { func })
-
-static inline notrace unsigned long arch_local_save_flags(void)
-{
- return PVOP_CALLEE0(unsigned long, pv_irq_ops.save_fl);
-}
-
-static inline notrace void arch_local_irq_restore(unsigned long f)
-{
- PVOP_VCALLEE1(pv_irq_ops.restore_fl, f);
-}
-
-static inline notrace void arch_local_irq_disable(void)
-{
- PVOP_VCALLEE0(pv_irq_ops.irq_disable);
-}
-
-static inline notrace void arch_local_irq_enable(void)
-{
- PVOP_VCALLEE0(pv_irq_ops.irq_enable);
-}
-
-static inline notrace unsigned long arch_local_irq_save(void)
-{
- unsigned long f;
-
- f = arch_local_save_flags();
- arch_local_irq_disable();
- return f;
-}
-
-
-/* Make sure as little as possible of this mess escapes. */
-#undef PARAVIRT_CALL
-#undef __PVOP_CALL
-#undef __PVOP_VCALL
-#undef PVOP_VCALL0
-#undef PVOP_CALL0
-#undef PVOP_VCALL1
-#undef PVOP_CALL1
-#undef PVOP_VCALL2
-#undef PVOP_CALL2
-#undef PVOP_VCALL3
-#undef PVOP_CALL3
-#undef PVOP_VCALL4
-#undef PVOP_CALL4
-
-extern void default_banner(void);
-
-#else /* __ASSEMBLY__ */
-
-#define _PVSITE(ptype, clobbers, ops, word, algn) \
-771:; \
- ops; \
-772:; \
- .pushsection .parainstructions,"a"; \
- .align algn; \
- word 771b; \
- .byte ptype; \
- .byte 772b-771b; \
- .short clobbers; \
- .popsection
-
-
-#define COND_PUSH(set, mask, reg) \
- .if ((~(set)) & mask); push %reg; .endif
-#define COND_POP(set, mask, reg) \
- .if ((~(set)) & mask); pop %reg; .endif
-
-#ifdef CONFIG_X86_64
-
-#define PV_SAVE_REGS(set) \
- COND_PUSH(set, CLBR_RAX, rax); \
- COND_PUSH(set, CLBR_RCX, rcx); \
- COND_PUSH(set, CLBR_RDX, rdx); \
- COND_PUSH(set, CLBR_RSI, rsi); \
- COND_PUSH(set, CLBR_RDI, rdi); \
- COND_PUSH(set, CLBR_R8, r8); \
- COND_PUSH(set, CLBR_R9, r9); \
- COND_PUSH(set, CLBR_R10, r10); \
- COND_PUSH(set, CLBR_R11, r11)
-#define PV_RESTORE_REGS(set) \
- COND_POP(set, CLBR_R11, r11); \
- COND_POP(set, CLBR_R10, r10); \
- COND_POP(set, CLBR_R9, r9); \
- COND_POP(set, CLBR_R8, r8); \
- COND_POP(set, CLBR_RDI, rdi); \
- COND_POP(set, CLBR_RSI, rsi); \
- COND_POP(set, CLBR_RDX, rdx); \
- COND_POP(set, CLBR_RCX, rcx); \
- COND_POP(set, CLBR_RAX, rax)
-
-#define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 8)
-#define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .quad, 8)
-#define PARA_INDIRECT(addr) *addr(%rip)
-#else
-#define PV_SAVE_REGS(set) \
- COND_PUSH(set, CLBR_EAX, eax); \
- COND_PUSH(set, CLBR_EDI, edi); \
- COND_PUSH(set, CLBR_ECX, ecx); \
- COND_PUSH(set, CLBR_EDX, edx)
-#define PV_RESTORE_REGS(set) \
- COND_POP(set, CLBR_EDX, edx); \
- COND_POP(set, CLBR_ECX, ecx); \
- COND_POP(set, CLBR_EDI, edi); \
- COND_POP(set, CLBR_EAX, eax)
-
-#define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 4)
-#define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .long, 4)
-#define PARA_INDIRECT(addr) *%cs:addr
-#endif
-
-#define INTERRUPT_RETURN \
- PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_iret), CLBR_NONE, \
- jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_iret))
-
-#define DISABLE_INTERRUPTS(clobbers) \
- PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_irq_disable), clobbers, \
- PV_SAVE_REGS(clobbers | CLBR_CALLEE_SAVE); \
- call PARA_INDIRECT(pv_irq_ops+PV_IRQ_irq_disable); \
- PV_RESTORE_REGS(clobbers | CLBR_CALLEE_SAVE);)
-
-#define ENABLE_INTERRUPTS(clobbers) \
- PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_irq_enable), clobbers, \
- PV_SAVE_REGS(clobbers | CLBR_CALLEE_SAVE); \
- call PARA_INDIRECT(pv_irq_ops+PV_IRQ_irq_enable); \
- PV_RESTORE_REGS(clobbers | CLBR_CALLEE_SAVE);)
-
-#define USERGS_SYSRET32 \
- PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_usergs_sysret32), \
- CLBR_NONE, \
- jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_usergs_sysret32))
-
-#ifdef CONFIG_X86_32
-#define GET_CR0_INTO_EAX \
- push %ecx; push %edx; \
- call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0); \
- pop %edx; pop %ecx
-
-#define ENABLE_INTERRUPTS_SYSEXIT \
- PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_irq_enable_sysexit), \
- CLBR_NONE, \
- jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_irq_enable_sysexit))
-
-
-#else /* !CONFIG_X86_32 */
-
-/*
- * If swapgs is used while the userspace stack is still current,
- * there's no way to call a pvop. The PV replacement *must* be
- * inlined, or the swapgs instruction must be trapped and emulated.
- */
-#define SWAPGS_UNSAFE_STACK \
- PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_swapgs), CLBR_NONE, \
- swapgs)
-
-/*
- * Note: swapgs is very special, and in practise is either going to be
- * implemented with a single "swapgs" instruction or something very
- * special. Either way, we don't need to save any registers for
- * it.
- */
-#define SWAPGS \
- PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_swapgs), CLBR_NONE, \
- call PARA_INDIRECT(pv_cpu_ops+PV_CPU_swapgs) \
- )
-
-#define GET_CR2_INTO_RCX \
- call PARA_INDIRECT(pv_mmu_ops+PV_MMU_read_cr2); \
- movq %rax, %rcx; \
- xorq %rax, %rax;
-
-#define PARAVIRT_ADJUST_EXCEPTION_FRAME \
- PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_adjust_exception_frame), \
- CLBR_NONE, \
- call PARA_INDIRECT(pv_irq_ops+PV_IRQ_adjust_exception_frame))
-
-#define USERGS_SYSRET64 \
- PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_usergs_sysret64), \
- CLBR_NONE, \
- jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_usergs_sysret64))
-
-#define ENABLE_INTERRUPTS_SYSEXIT32 \
- PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_irq_enable_sysexit), \
- CLBR_NONE, \
- jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_irq_enable_sysexit))
-#endif /* CONFIG_X86_32 */
-
-#endif /* __ASSEMBLY__ */
-#else /* CONFIG_PARAVIRT */
-# define default_banner x86_init_noop
-#endif /* !CONFIG_PARAVIRT */
-#endif /* _ASM_X86_PARAVIRT_H */
generated by cgit (git 2.34.1) at 2025-01-11 12:07:56 +0000