C++ (Cpp) MIPS32_PTE_TO_PA примеры использования

Пример #1

Файл: kvm_minidump_mips.c Проект: derekmarcotte/freebsd

static int
_mips_minidump_kvatop(kvm_t *kd, kvaddr_t va, off_t *pa)
{
	struct vmstate *vm;
	mips_physaddr_t offset, a;
	kvaddr_t pteindex;
	u_long valid;
	off_t ofs;
	mips32_pte_t pte32;
	mips64_pte_t pte64;

	if (ISALIVE(kd)) {
		_kvm_err(kd, 0, "_mips_minidump_kvatop called in live kernel!");
		return (0);
	}

	offset = va & MIPS_PAGE_MASK;
	/* Operate with page-aligned address */
	va &= ~MIPS_PAGE_MASK;

	vm = kd->vmst;
	if (kd->nlehdr.e_ident[EI_CLASS] == ELFCLASS64) {
		if (va >= MIPS_XKPHYS_START && va < MIPS_XKPHYS_END) {
			a = va & MIPS_XKPHYS_PHYS_MASK;
			goto found;
		}
		if (va >= MIPS64_KSEG0_START && va < MIPS64_KSEG0_END) {
			a = va & MIPS_KSEG0_PHYS_MASK;
			goto found;
		}
		if (va >= MIPS64_KSEG1_START && va < MIPS64_KSEG1_END) {
			a = va & MIPS_KSEG0_PHYS_MASK;
			goto found;
		}
	} else {
		if (va >= MIPS32_KSEG0_START && va < MIPS32_KSEG0_END) {
			a = va & MIPS_KSEG0_PHYS_MASK;
			goto found;
		}
		if (va >= MIPS32_KSEG1_START && va < MIPS32_KSEG1_END) {
			a = va & MIPS_KSEG0_PHYS_MASK;
			goto found;
		}
	}
	if (va >= vm->hdr.kernbase) {
		pteindex = (va - vm->hdr.kernbase) >> MIPS_PAGE_SHIFT;
		if (vm->pte_size == 64) {
			valid = pteindex < vm->hdr.ptesize / sizeof(pte64);
			if (pteindex >= vm->hdr.ptesize / sizeof(pte64))
				goto invalid;
			pte64 = _mips64_pte_get(kd, pteindex);
			valid = pte64 & MIPS_PTE_V;
			if (valid)
				a = MIPS64_PTE_TO_PA(pte64);
		} else {
			if (pteindex >= vm->hdr.ptesize / sizeof(pte32))
				goto invalid;
			pte32 = _mips32_pte_get(kd, pteindex);
			valid = pte32 & MIPS_PTE_V;
			if (valid)
				a = MIPS32_PTE_TO_PA(pte32);
		}
		if (!valid) {
			_kvm_err(kd, kd->program, "_mips_minidump_kvatop: pte "
			    "not valid");
			goto invalid;
		}
	} else {

Пример #2

Файл: kvm_minidump_mips.c Проект: 2asoft/freebsd

static int
_mips_minidump_kvatop(kvm_t *kd, kvaddr_t va, off_t *pa)
{
	struct vmstate *vm;
	uint64_t pte;
	mips_physaddr_t offset, a;
	kvaddr_t pteindex;
	off_t ofs;
	uint32_t *ptemap32;
	uint64_t *ptemap64;

	if (ISALIVE(kd)) {
		_kvm_err(kd, 0, "_mips_minidump_kvatop called in live kernel!");
		return (0);
	}

	offset = va & MIPS_PAGE_MASK;
	/* Operate with page-aligned address */
	va &= ~MIPS_PAGE_MASK;

	vm = kd->vmst;
	ptemap32 = vm->ptemap;
	ptemap64 = vm->ptemap;

	if (kd->nlehdr.e_ident[EI_CLASS] == ELFCLASS64) {
		if (va >= MIPS_XKPHYS_START && va < MIPS_XKPHYS_END) {
			a = va & MIPS_XKPHYS_PHYS_MASK;
			goto found;
		}
		if (va >= MIPS64_KSEG0_START && va < MIPS64_KSEG0_END) {
			a = va & MIPS_KSEG0_PHYS_MASK;
			goto found;
		}
		if (va >= MIPS64_KSEG1_START && va < MIPS64_KSEG1_END) {
			a = va & MIPS_KSEG0_PHYS_MASK;
			goto found;
		}
	} else {
		if (va >= MIPS32_KSEG0_START && va < MIPS32_KSEG0_END) {
			a = va & MIPS_KSEG0_PHYS_MASK;
			goto found;
		}
		if (va >= MIPS32_KSEG1_START && va < MIPS32_KSEG1_END) {
			a = va & MIPS_KSEG0_PHYS_MASK;
			goto found;
		}
	}
	if (va >= vm->hdr.kernbase) {
		pteindex = (va - vm->hdr.kernbase) >> MIPS_PAGE_SHIFT;
		if (vm->pte_size == 64) {
			pte = _kvm64toh(kd, ptemap64[pteindex]);
			a = MIPS64_PTE_TO_PA(pte);
		} else {
			pte = _kvm32toh(kd, ptemap32[pteindex]);
			a = MIPS32_PTE_TO_PA(pte);
		}
		if (!pte) {
			_kvm_err(kd, kd->program, "_mips_minidump_kvatop: pte "
			    "not valid");
			goto invalid;
		}
	} else {