Contributors: 28
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Juergen Gross |
318 |
34.98% |
15 |
15.96% |
| Jeremy Fitzhardinge |
158 |
17.38% |
18 |
19.15% |
| Rusty Russell |
143 |
15.73% |
4 |
4.26% |
| Peter Zijlstra |
99 |
10.89% |
9 |
9.57% |
| Kirill A. Shutemov |
31 |
3.41% |
3 |
3.19% |
| Andrew Lutomirski |
28 |
3.08% |
6 |
6.38% |
| Eduardo Pereira Habkost |
18 |
1.98% |
2 |
2.13% |
| Pavel Machek |
16 |
1.76% |
1 |
1.06% |
| Linus Torvalds (pre-git) |
15 |
1.65% |
5 |
5.32% |
| Zachary Amsden |
12 |
1.32% |
1 |
1.06% |
| Thomas Gleixner |
9 |
0.99% |
5 |
5.32% |
| Brijesh Singh |
7 |
0.77% |
1 |
1.06% |
| David Howells |
6 |
0.66% |
1 |
1.06% |
| Mike Rapoport |
6 |
0.66% |
1 |
1.06% |
| Dave Jones |
6 |
0.66% |
3 |
3.19% |
| H. Peter Anvin |
5 |
0.55% |
2 |
2.13% |
| Glauber de Oliveira Costa |
4 |
0.44% |
4 |
4.26% |
| John Stultz |
3 |
0.33% |
1 |
1.06% |
| Andrew Morton |
3 |
0.33% |
1 |
1.06% |
| Linus Torvalds |
3 |
0.33% |
1 |
1.06% |
| Prasanna S. Panchamukhi |
3 |
0.33% |
1 |
1.06% |
| Andy Grover |
3 |
0.33% |
2 |
2.13% |
| Paul Gortmaker |
3 |
0.33% |
2 |
2.13% |
| Ahmed S. Darwish |
3 |
0.33% |
1 |
1.06% |
| Nadav Amit |
2 |
0.22% |
1 |
1.06% |
| Matthew Wilcox |
2 |
0.22% |
1 |
1.06% |
| Boris Ostrovsky |
2 |
0.22% |
1 |
1.06% |
| Christoph Hellwig |
1 |
0.11% |
1 |
1.06% |
| Total |
909 |
|
94 |
|
// SPDX-License-Identifier: GPL-2.0-or-later
/* Paravirtualization interfaces
Copyright (C) 2006 Rusty Russell IBM Corporation
2007 - x86_64 support added by Glauber de Oliveira Costa, Red Hat Inc
*/
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/export.h>
#include <linux/efi.h>
#include <linux/bcd.h>
#include <linux/highmem.h>
#include <linux/kprobes.h>
#include <linux/pgtable.h>
#include <linux/static_call.h>
#include <asm/bug.h>
#include <asm/paravirt.h>
#include <asm/debugreg.h>
#include <asm/desc.h>
#include <asm/setup.h>
#include <asm/time.h>
#include <asm/pgalloc.h>
#include <asm/irq.h>
#include <asm/cpuid/api.h>
#include <asm/delay.h>
#include <asm/fixmap.h>
#include <asm/apic.h>
#include <asm/tlbflush.h>
#include <asm/timer.h>
#include <asm/special_insns.h>
#include <asm/tlb.h>
#include <asm/io_bitmap.h>
#include <asm/gsseg.h>
#include <asm/msr.h>
/* stub always returning 0. */
DEFINE_ASM_FUNC(paravirt_ret0, "xor %eax,%eax", .entry.text);
void __init default_banner(void)
{
printk(KERN_INFO "Booting paravirtualized kernel on %s\n",
pv_info.name);
}
#ifdef CONFIG_PARAVIRT_XXL
unsigned long pv_native_save_fl(void);
void pv_native_irq_disable(void);
void pv_native_irq_enable(void);
unsigned long pv_native_read_cr2(void);
DEFINE_ASM_FUNC(_paravirt_ident_64, "mov %rdi, %rax", .text);
DEFINE_ASM_FUNC(pv_native_save_fl, "pushf; pop %rax", .noinstr.text);
DEFINE_ASM_FUNC(pv_native_irq_disable, "cli", .noinstr.text);
DEFINE_ASM_FUNC(pv_native_irq_enable, "sti", .noinstr.text);
DEFINE_ASM_FUNC(pv_native_read_cr2, "mov %cr2, %rax", .noinstr.text);
#endif
static noinstr void pv_native_safe_halt(void)
{
native_safe_halt();
}
#ifdef CONFIG_PARAVIRT_XXL
static noinstr void pv_native_write_cr2(unsigned long val)
{
native_write_cr2(val);
}
static noinstr unsigned long pv_native_read_cr3(void)
{
return __native_read_cr3();
}
static noinstr void pv_native_write_cr3(unsigned long cr3)
{
native_write_cr3(cr3);
}
static noinstr unsigned long pv_native_get_debugreg(int regno)
{
return native_get_debugreg(regno);
}
static noinstr void pv_native_set_debugreg(int regno, unsigned long val)
{
native_set_debugreg(regno, val);
}
#endif
struct pv_info pv_info = {
.name = "bare hardware",
#ifdef CONFIG_PARAVIRT_XXL
.extra_user_64bit_cs = __USER_CS,
#endif
.io_delay = true,
};
/* 64-bit pagetable entries */
#define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_64)
struct paravirt_patch_template pv_ops = {
/* Cpu ops. */
#ifdef CONFIG_PARAVIRT_XXL
.cpu.cpuid = native_cpuid,
.cpu.get_debugreg = pv_native_get_debugreg,
.cpu.set_debugreg = pv_native_set_debugreg,
.cpu.read_cr0 = native_read_cr0,
.cpu.write_cr0 = native_write_cr0,
.cpu.write_cr4 = native_write_cr4,
.cpu.read_msr = native_read_msr,
.cpu.write_msr = native_write_msr,
.cpu.read_msr_safe = native_read_msr_safe,
.cpu.write_msr_safe = native_write_msr_safe,
.cpu.read_pmc = native_read_pmc,
.cpu.load_tr_desc = native_load_tr_desc,
.cpu.set_ldt = native_set_ldt,
.cpu.load_gdt = native_load_gdt,
.cpu.load_idt = native_load_idt,
.cpu.store_tr = native_store_tr,
.cpu.load_tls = native_load_tls,
.cpu.load_gs_index = native_load_gs_index,
.cpu.write_ldt_entry = native_write_ldt_entry,
.cpu.write_gdt_entry = native_write_gdt_entry,
.cpu.write_idt_entry = native_write_idt_entry,
.cpu.alloc_ldt = paravirt_nop,
.cpu.free_ldt = paravirt_nop,
.cpu.load_sp0 = native_load_sp0,
#ifdef CONFIG_X86_IOPL_IOPERM
.cpu.invalidate_io_bitmap = native_tss_invalidate_io_bitmap,
.cpu.update_io_bitmap = native_tss_update_io_bitmap,
#endif
.cpu.start_context_switch = paravirt_nop,
.cpu.end_context_switch = paravirt_nop,
/* Irq ops. */
.irq.save_fl = __PV_IS_CALLEE_SAVE(pv_native_save_fl),
.irq.irq_disable = __PV_IS_CALLEE_SAVE(pv_native_irq_disable),
.irq.irq_enable = __PV_IS_CALLEE_SAVE(pv_native_irq_enable),
#endif /* CONFIG_PARAVIRT_XXL */
/* Irq HLT ops. */
.irq.safe_halt = pv_native_safe_halt,
.irq.halt = native_halt,
/* Mmu ops. */
.mmu.flush_tlb_user = native_flush_tlb_local,
.mmu.flush_tlb_kernel = native_flush_tlb_global,
.mmu.flush_tlb_one_user = native_flush_tlb_one_user,
.mmu.flush_tlb_multi = native_flush_tlb_multi,
.mmu.exit_mmap = paravirt_nop,
.mmu.notify_page_enc_status_changed = paravirt_nop,
#ifdef CONFIG_PARAVIRT_XXL
.mmu.read_cr2 = __PV_IS_CALLEE_SAVE(pv_native_read_cr2),
.mmu.write_cr2 = pv_native_write_cr2,
.mmu.read_cr3 = pv_native_read_cr3,
.mmu.write_cr3 = pv_native_write_cr3,
.mmu.pgd_alloc = __paravirt_pgd_alloc,
.mmu.pgd_free = paravirt_nop,
.mmu.alloc_pte = paravirt_nop,
.mmu.alloc_pmd = paravirt_nop,
.mmu.alloc_pud = paravirt_nop,
.mmu.alloc_p4d = paravirt_nop,
.mmu.release_pte = paravirt_nop,
.mmu.release_pmd = paravirt_nop,
.mmu.release_pud = paravirt_nop,
.mmu.release_p4d = paravirt_nop,
.mmu.set_pte = native_set_pte,
.mmu.set_pmd = native_set_pmd,
.mmu.ptep_modify_prot_start = __ptep_modify_prot_start,
.mmu.ptep_modify_prot_commit = __ptep_modify_prot_commit,
.mmu.set_pud = native_set_pud,
.mmu.pmd_val = PTE_IDENT,
.mmu.make_pmd = PTE_IDENT,
.mmu.pud_val = PTE_IDENT,
.mmu.make_pud = PTE_IDENT,
.mmu.set_p4d = native_set_p4d,
.mmu.p4d_val = PTE_IDENT,
.mmu.make_p4d = PTE_IDENT,
.mmu.set_pgd = native_set_pgd,
.mmu.pte_val = PTE_IDENT,
.mmu.pgd_val = PTE_IDENT,
.mmu.make_pte = PTE_IDENT,
.mmu.make_pgd = PTE_IDENT,
.mmu.enter_mmap = paravirt_nop,
.mmu.lazy_mode_flush = paravirt_nop,
.mmu.set_fixmap = native_set_fixmap,
#endif /* CONFIG_PARAVIRT_XXL */
};
#ifdef CONFIG_PARAVIRT_XXL
NOKPROBE_SYMBOL(native_load_idt);
#endif
EXPORT_SYMBOL(pv_ops);
EXPORT_SYMBOL_GPL(pv_info);