/root/src/xen/xen/include/asm/fixmap.h

Source (jump to first uncovered line)
/*
 * fixmap.h: compile-time virtual memory allocation
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1998 Ingo Molnar
 * Modifications for Xen are copyright (c) 2002-2004, K A Fraser
 */

#ifndef _ASM_FIXMAP_H
#define _ASM_FIXMAP_H

#include <asm/page.h>

#define FIXADDR_TOP (VMAP_VIRT_END - PAGE_SIZE)

#ifndef __ASSEMBLY__

#include <xen/acpi.h>
#include <xen/pfn.h>
#include <xen/kexec.h>
#include <xen/iommu.h>
#include <asm/apicdef.h>
#include <asm/amd-iommu.h>
#include <asm/msi.h>
#include <acpi/apei.h>

/*
 * Here we define all the compile-time 'special' virtual
 * addresses. The point is to have a constant address at
 * compile time, but to set the physical address only
 * in the boot process. We allocate these special addresses
 * from the end of virtual memory backwards.
 */
enum fixed_addresses {
    /* Index 0 is reserved since fix_to_virt(0) == FIXADDR_TOP. */
    FIX_RESERVED,
    /*
     * Indexes using the page tables set up before entering __start_xen()
     * must be among the first (L1_PAGETABLE_ENTRIES - 1) entries.
     * These are generally those needed by the various console drivers.
     */
    FIX_COM_BEGIN,
    FIX_COM_END,
    FIX_EHCI_DBGP,
    /* Everything else should go further down. */
    FIX_APIC_BASE,
    FIX_IO_APIC_BASE_0,
    FIX_IO_APIC_BASE_END = FIX_IO_APIC_BASE_0 + MAX_IO_APICS-1,
    FIX_ACPI_BEGIN,
    FIX_ACPI_END = FIX_ACPI_BEGIN + NUM_FIXMAP_ACPI_PAGES - 1,
    FIX_HPET_BASE,
    FIX_TBOOT_SHARED_BASE,
    FIX_MSIX_IO_RESERV_BASE,
    FIX_MSIX_IO_RESERV_END = FIX_MSIX_IO_RESERV_BASE + FIX_MSIX_MAX_PAGES -1,
    FIX_TBOOT_MAP_ADDRESS,
    FIX_APEI_RANGE_BASE,
    FIX_APEI_RANGE_END = FIX_APEI_RANGE_BASE + FIX_APEI_RANGE_MAX -1,
    FIX_EFI_MPF,
    __end_of_fixed_addresses
};

#define FIXADDR_SIZE  (__end_of_fixed_addresses << PAGE_SHIFT)
#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)

extern void __set_fixmap(
    enum fixed_addresses idx, unsigned long mfn, unsigned long flags);

#define set_fixmap(idx, phys) \
    __set_fixmap(idx, (phys)>>PAGE_SHIFT, PAGE_HYPERVISOR)

#define set_fixmap_nocache(idx, phys) \
    __set_fixmap(idx, (phys)>>PAGE_SHIFT, PAGE_HYPERVISOR_UCMINUS)

#define clear_fixmap(idx) __set_fixmap(idx, 0, 0)

#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
#define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)

#define fix_to_virt(x)   (__fix_to_virt(x))

static inline unsigned long virt_to_fix(const unsigned long vaddr)
{
    BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
    return __virt_to_fix(vaddr);
}

#endif /* __ASSEMBLY__ */

#endif

Line	Count	Source (jump to first uncovered line)
1		/*
2		* fixmap.h: compile-time virtual memory allocation
3		*
4		* This file is subject to the terms and conditions of the GNU General Public
5		* License. See the file "COPYING" in the main directory of this archive
6		* for more details.
7		*
8		* Copyright (C) 1998 Ingo Molnar
9		* Modifications for Xen are copyright (c) 2002-2004, K A Fraser
10		*/
11
12		#ifndef _ASM_FIXMAP_H
13		#define _ASM_FIXMAP_H
14
15		#include <asm/page.h>
16
17	89.0k	#define FIXADDR_TOP (VMAP_VIRT_END - PAGE_SIZE)
18
19		#ifndef __ASSEMBLY__
20
21		#include <xen/acpi.h>
22		#include <xen/pfn.h>
23		#include <xen/kexec.h>
24		#include <xen/iommu.h>
25		#include <asm/apicdef.h>
26		#include <asm/amd-iommu.h>
27		#include <asm/msi.h>
28		#include <acpi/apei.h>
29
30		/*
31		* Here we define all the compile-time 'special' virtual
32		* addresses. The point is to have a constant address at
33		* compile time, but to set the physical address only
34		* in the boot process. We allocate these special addresses
35		* from the end of virtual memory backwards.
36		*/
37		enum fixed_addresses {
38		/* Index 0 is reserved since fix_to_virt(0) == FIXADDR_TOP. */
39		FIX_RESERVED,
40		/*
41		* Indexes using the page tables set up before entering __start_xen()
42		* must be among the first (L1_PAGETABLE_ENTRIES - 1) entries.
43		* These are generally those needed by the various console drivers.
44		*/
45		FIX_COM_BEGIN,
46		FIX_COM_END,
47		FIX_EHCI_DBGP,
48		/* Everything else should go further down. */
49		FIX_APIC_BASE,
50		FIX_IO_APIC_BASE_0,
51		FIX_IO_APIC_BASE_END = FIX_IO_APIC_BASE_0 + MAX_IO_APICS-1,
52		FIX_ACPI_BEGIN,
53		FIX_ACPI_END = FIX_ACPI_BEGIN + NUM_FIXMAP_ACPI_PAGES - 1,
54		FIX_HPET_BASE,
55		FIX_TBOOT_SHARED_BASE,
56		FIX_MSIX_IO_RESERV_BASE,
57		FIX_MSIX_IO_RESERV_END = FIX_MSIX_IO_RESERV_BASE + FIX_MSIX_MAX_PAGES -1,
58		FIX_TBOOT_MAP_ADDRESS,
59		FIX_APEI_RANGE_BASE,
60		FIX_APEI_RANGE_END = FIX_APEI_RANGE_BASE + FIX_APEI_RANGE_MAX -1,
61		FIX_EFI_MPF,
62		__end_of_fixed_addresses
63		};
64
65		#define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
66		#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
67
68		extern void __set_fixmap(
69		enum fixed_addresses idx, unsigned long mfn, unsigned long flags);
70
71		#define set_fixmap(idx, phys) \
72	22	__set_fixmap(idx, (phys)>>PAGE_SHIFT, PAGE_HYPERVISOR)
73
74		#define set_fixmap_nocache(idx, phys) \
75	15	__set_fixmap(idx, (phys)>>PAGE_SHIFT, PAGE_HYPERVISOR_UCMINUS)
76
77	0	#define clear_fixmap(idx) __set_fixmap(idx, 0, 0)
78
79	89.0k	#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
80	0	#define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
81
82	86.3k	#define fix_to_virt(x) (__fix_to_virt(x))
83
84		static inline unsigned long virt_to_fix(const unsigned long vaddr)
85	0	{
86	0	BUG_ON(vaddr >= FIXADDR_TOP \|\| vaddr < FIXADDR_START);
87	0	return __virt_to_fix(vaddr);
88	0	} Unexecuted instantiation: ns16550.c:virt_to_fix Unexecuted instantiation: ehci-dbgp.c:virt_to_fix Unexecuted instantiation: io.c:virt_to_fix Unexecuted instantiation: iommu.c:virt_to_fix Unexecuted instantiation: utils.c:virt_to_fix Unexecuted instantiation: intremap.c:virt_to_fix Unexecuted instantiation: quirks.c:virt_to_fix Unexecuted instantiation: vtd.c:virt_to_fix Unexecuted instantiation: iommu_init.c:virt_to_fix Unexecuted instantiation: pci_amd_iommu.c:virt_to_fix Unexecuted instantiation: iommu_intr.c:virt_to_fix Unexecuted instantiation: erst.c:virt_to_fix Unexecuted instantiation: apei-io.c:virt_to_fix Unexecuted instantiation: apic.c:virt_to_fix Unexecuted instantiation: crash.c:virt_to_fix Unexecuted instantiation: i8259.c:virt_to_fix Unexecuted instantiation: io_apic.c:virt_to_fix Unexecuted instantiation: msi.c:virt_to_fix Unexecuted instantiation: irq.c:virt_to_fix Unexecuted instantiation: machine_kexec.c:virt_to_fix Unexecuted instantiation: mm.c:virt_to_fix Unexecuted instantiation: mpparse.c:virt_to_fix Unexecuted instantiation: nmi.c:virt_to_fix Unexecuted instantiation: physdev.c:virt_to_fix Unexecuted instantiation: platform_hypercall.c:virt_to_fix Unexecuted instantiation: setup.c:virt_to_fix Unexecuted instantiation: shutdown.c:virt_to_fix Unexecuted instantiation: smp.c:virt_to_fix Unexecuted instantiation: smpboot.c:virt_to_fix Unexecuted instantiation: time.c:virt_to_fix Unexecuted instantiation: traps.c:virt_to_fix Unexecuted instantiation: tboot.c:virt_to_fix Unexecuted instantiation: hpet.c:virt_to_fix Unexecuted instantiation: lib.c:virt_to_fix Unexecuted instantiation: power.c:virt_to_fix Unexecuted instantiation: cpu_idle.c:virt_to_fix Unexecuted instantiation: amd.c:virt_to_fix Unexecuted instantiation: common.c:virt_to_fix Unexecuted instantiation: intel.c:virt_to_fix Unexecuted instantiation: vpmu.c:virt_to_fix Unexecuted instantiation: vpmu_amd.c:virt_to_fix Unexecuted instantiation: vpmu_intel.c:virt_to_fix Unexecuted instantiation: mce.c:virt_to_fix Unexecuted instantiation: mce_intel.c:virt_to_fix Unexecuted instantiation: bigsmp.c:virt_to_fix Unexecuted instantiation: x2apic.c:virt_to_fix Unexecuted instantiation: default.c:virt_to_fix Unexecuted instantiation: delivery.c:virt_to_fix Unexecuted instantiation: probe.c:virt_to_fix Unexecuted instantiation: hvm.c:virt_to_fix Unexecuted instantiation: vioapic.c:virt_to_fix Unexecuted instantiation: viridian.c:virt_to_fix Unexecuted instantiation: vlapic.c:virt_to_fix Unexecuted instantiation: vmsi.c:virt_to_fix Unexecuted instantiation: vpt.c:virt_to_fix Unexecuted instantiation: svm.c:virt_to_fix Unexecuted instantiation: vmcs.c:virt_to_fix Unexecuted instantiation: vmx.c:virt_to_fix Unexecuted instantiation: nmi_int.c:virt_to_fix Unexecuted instantiation: op_model_p4.c:virt_to_fix Unexecuted instantiation: op_model_ppro.c:virt_to_fix Unexecuted instantiation: op_model_athlon.c:virt_to_fix Unexecuted instantiation: emul-gate-op.c:virt_to_fix Unexecuted instantiation: emul-inv-op.c:virt_to_fix Unexecuted instantiation: emul-priv-op.c:virt_to_fix Unexecuted instantiation: acpi_mmcfg.c:virt_to_fix
89
90		#endif /* __ASSEMBLY__ */
91
92		#endif

Coverage Report

Created: 2017-10-25 09:10