| /* |
| * Copyright (c) 2014-2015, Intel Corporation |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * * Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * * Neither the name of Intel Corporation nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "ptunit.h" |
| |
| #include "pt_section.h" |
| #include "pt_mapped_section.h" |
| |
| #include "intel-pt.h" |
| |
| |
| /* A test mapping. */ |
| struct sfix_mapping { |
| /* The contents. */ |
| uint8_t content[0x10]; |
| |
| /* The size - between 0 and sizeof(content). */ |
| uint64_t size; |
| }; |
| |
| uint64_t pt_section_size(const struct pt_section *section) |
| { |
| if (!section) |
| return 0ull; |
| |
| return section->size; |
| } |
| |
| int pt_section_map(struct pt_section *section) |
| { |
| if (!section) |
| return -pte_internal; |
| |
| if (section->mapping) |
| return -pte_internal; |
| |
| section->mapping = section->status; |
| return 0; |
| } |
| |
| int pt_section_unmap(struct pt_section *section) |
| { |
| if (!section) |
| return -pte_internal; |
| |
| if (!section->mapping) |
| return -pte_internal; |
| |
| section->mapping = NULL; |
| return 0; |
| } |
| |
| int pt_section_read(const struct pt_section *section, uint8_t *buffer, |
| uint16_t size, uint64_t offset) |
| { |
| struct sfix_mapping *mapping; |
| uint64_t begin, end; |
| |
| if (!section || !buffer) |
| return -pte_invalid; |
| |
| mapping = section->mapping; |
| if (!mapping) |
| return -pte_nomap; |
| |
| if (mapping->size <= offset) |
| return -pte_nomap; |
| |
| begin = offset; |
| end = begin + size; |
| |
| if (mapping->size < end) { |
| end = mapping->size; |
| size = (uint16_t) (end - begin); |
| } |
| |
| memcpy(buffer, &mapping->content[begin], size); |
| |
| return size; |
| } |
| |
| /* A test fixture providing a test sections. */ |
| struct section_fixture { |
| /* The test mapping. */ |
| struct sfix_mapping mapping; |
| |
| /* The test section. */ |
| struct pt_section section; |
| |
| /* The test mapped section. */ |
| struct pt_mapped_section msec; |
| |
| /* The address space of @msec. */ |
| struct pt_asid asid; |
| |
| /* The virtual address of @msec. */ |
| uint64_t vaddr; |
| |
| /* The test fixture initialization and finalization functions. */ |
| struct ptunit_result (*init)(struct section_fixture *); |
| struct ptunit_result (*fini)(struct section_fixture *); |
| }; |
| |
| |
| static struct ptunit_result init(struct section_fixture *sfix) |
| { |
| ptu_ptr_eq(sfix->msec.section, &sfix->section); |
| ptu_uint_eq(sfix->msec.vaddr, sfix->vaddr); |
| ptu_uint_eq(sfix->msec.asid.size, sfix->asid.size); |
| ptu_uint_eq(sfix->msec.asid.cr3, sfix->asid.cr3); |
| |
| return ptu_passed(); |
| } |
| |
| static struct ptunit_result begin_null(void) |
| { |
| uint64_t begin; |
| |
| begin = pt_msec_begin(NULL); |
| ptu_uint_eq(begin, 0ull); |
| |
| return ptu_passed(); |
| } |
| |
| static struct ptunit_result end_null(void) |
| { |
| uint64_t end; |
| |
| end = pt_msec_end(NULL); |
| ptu_uint_eq(end, 0ull); |
| |
| return ptu_passed(); |
| } |
| |
| static struct ptunit_result end_bad(void) |
| { |
| struct pt_mapped_section msec; |
| uint64_t end; |
| |
| pt_msec_init(&msec, NULL, NULL, 0x1000); |
| |
| end = pt_msec_end(&msec); |
| ptu_uint_eq(end, 0ull); |
| |
| return ptu_passed(); |
| } |
| |
| static struct ptunit_result begin(struct section_fixture *sfix) |
| { |
| uint64_t begin; |
| |
| begin = pt_msec_begin(&sfix->msec); |
| ptu_uint_eq(begin, sfix->vaddr); |
| |
| return ptu_passed(); |
| } |
| |
| static struct ptunit_result end(struct section_fixture *sfix) |
| { |
| uint64_t end; |
| |
| end = pt_msec_end(&sfix->msec); |
| ptu_uint_eq(end, sfix->vaddr + sfix->section.size); |
| |
| return ptu_passed(); |
| } |
| |
| static struct ptunit_result asid_null(void) |
| { |
| const struct pt_asid *asid; |
| |
| asid = pt_msec_asid(NULL); |
| ptu_null(asid); |
| |
| return ptu_passed(); |
| } |
| |
| static struct ptunit_result asid(void) |
| { |
| struct pt_mapped_section msec; |
| struct pt_asid asid; |
| const struct pt_asid *pasid; |
| |
| pt_asid_init(&asid); |
| asid.cr3 = 0xa00; |
| |
| pt_msec_init(&msec, NULL, &asid, 0ull); |
| |
| pasid = pt_msec_asid(&msec); |
| ptu_uint_eq(pasid->size, asid.size); |
| ptu_uint_eq(pasid->cr3, asid.cr3); |
| |
| return ptu_passed(); |
| } |
| |
| static struct ptunit_result read(struct section_fixture *sfix) |
| { |
| uint8_t buffer[] = { 0xcc, 0xcc, 0xcc }; |
| int status; |
| |
| status = pt_msec_read(&sfix->msec, buffer, 2, &sfix->asid, sfix->vaddr); |
| ptu_int_eq(status, 2); |
| ptu_uint_eq(buffer[0], sfix->mapping.content[0]); |
| ptu_uint_eq(buffer[1], sfix->mapping.content[1]); |
| ptu_uint_eq(buffer[2], 0xcc); |
| |
| return ptu_passed(); |
| } |
| |
| static struct ptunit_result read_default_asid(struct section_fixture *sfix) |
| { |
| struct pt_asid asid; |
| uint8_t buffer[] = { 0xcc, 0xcc, 0xcc }; |
| int status; |
| |
| pt_asid_init(&asid); |
| |
| status = pt_msec_read(&sfix->msec, buffer, 2, &asid, sfix->vaddr); |
| ptu_int_eq(status, 2); |
| ptu_uint_eq(buffer[0], sfix->mapping.content[0]); |
| ptu_uint_eq(buffer[1], sfix->mapping.content[1]); |
| ptu_uint_eq(buffer[2], 0xcc); |
| |
| return ptu_passed(); |
| } |
| |
| static struct ptunit_result read_offset(struct section_fixture *sfix) |
| { |
| uint8_t buffer[] = { 0xcc, 0xcc, 0xcc }; |
| int status; |
| |
| status = pt_msec_read(&sfix->msec, buffer, 2, &sfix->asid, |
| sfix->vaddr + 3); |
| ptu_int_eq(status, 2); |
| ptu_uint_eq(buffer[0], sfix->mapping.content[3]); |
| ptu_uint_eq(buffer[1], sfix->mapping.content[4]); |
| ptu_uint_eq(buffer[2], 0xcc); |
| |
| return ptu_passed(); |
| } |
| |
| static struct ptunit_result read_truncated(struct section_fixture *sfix) |
| { |
| uint8_t buffer[] = { 0xcc, 0xcc }; |
| int status; |
| |
| status = pt_msec_read(&sfix->msec, buffer, 2, &sfix->asid, |
| sfix->vaddr + sfix->section.size - 1); |
| ptu_int_eq(status, 1); |
| ptu_uint_eq(buffer[0], sfix->mapping.content[sfix->mapping.size - 1]); |
| ptu_uint_eq(buffer[1], 0xcc); |
| |
| return ptu_passed(); |
| } |
| |
| static struct ptunit_result read_nomem_vaddr(struct section_fixture *sfix) |
| { |
| uint8_t buffer[] = { 0xcc }; |
| int status; |
| |
| status = pt_msec_read(&sfix->msec, buffer, 2, &sfix->asid, |
| sfix->vaddr + sfix->section.size); |
| ptu_int_eq(status, -pte_nomap); |
| ptu_uint_eq(buffer[0], 0xcc); |
| |
| return ptu_passed(); |
| } |
| |
| static struct ptunit_result read_nomem_asid(struct section_fixture *sfix) |
| { |
| struct pt_asid asid; |
| uint8_t buffer[] = { 0xcc }; |
| int status; |
| |
| pt_asid_init(&asid); |
| asid.cr3 = 0xcece00ull; |
| |
| status = pt_msec_read(&sfix->msec, buffer, 2, &asid, sfix->vaddr); |
| ptu_int_eq(status, -pte_nomap); |
| ptu_uint_eq(buffer[0], 0xcc); |
| |
| return ptu_passed(); |
| } |
| |
| static struct ptunit_result sfix_init(struct section_fixture *sfix) |
| { |
| uint8_t i; |
| |
| sfix->section.size = sfix->mapping.size = sizeof(sfix->mapping.content); |
| sfix->vaddr = 0x1000; |
| |
| for (i = 0; i < sfix->mapping.size; ++i) |
| sfix->mapping.content[i] = i; |
| |
| sfix->section.status = &sfix->mapping; |
| sfix->section.mapping = NULL; |
| |
| pt_asid_init(&sfix->asid); |
| sfix->asid.cr3 = 0x4200ull; |
| |
| pt_msec_init(&sfix->msec, &sfix->section, &sfix->asid, sfix->vaddr); |
| |
| return ptu_passed(); |
| } |
| |
| static struct ptunit_result sfix_fini(struct section_fixture *sfix) |
| { |
| pt_msec_fini(&sfix->msec); |
| |
| return ptu_passed(); |
| } |
| |
| int main(int argc, char **argv) |
| { |
| struct section_fixture sfix; |
| struct ptunit_suite suite; |
| |
| sfix.init = sfix_init; |
| sfix.fini = sfix_fini; |
| |
| suite = ptunit_mk_suite(argc, argv); |
| |
| ptu_run_f(suite, init, sfix); |
| |
| ptu_run(suite, begin_null); |
| ptu_run(suite, end_null); |
| ptu_run(suite, end_bad); |
| |
| ptu_run_f(suite, begin, sfix); |
| ptu_run_f(suite, end, sfix); |
| |
| ptu_run(suite, asid_null); |
| ptu_run(suite, asid); |
| |
| ptu_run_f(suite, read, sfix); |
| ptu_run_f(suite, read_default_asid, sfix); |
| ptu_run_f(suite, read_offset, sfix); |
| ptu_run_f(suite, read_truncated, sfix); |
| ptu_run_f(suite, read_nomem_vaddr, sfix); |
| ptu_run_f(suite, read_nomem_asid, sfix); |
| |
| ptunit_report(&suite); |
| return suite.nr_fails; |
| } |