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85f87cf491
Its latest version merged from: ^/vendor/processor-trace/892e12c5a27bda5806d1e63269986bb4171b5a8b Sponsored by: DARPA, AFRL
419 lines
9.2 KiB
C
419 lines
9.2 KiB
C
/*
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* Copyright (c) 2017-2019, Intel Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "ptunit.h"
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#include "pt_msec_cache.h"
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#include "intel-pt.h"
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int pt_section_get(struct pt_section *section)
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{
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uint16_t ucount;
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if (!section)
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return -pte_internal;
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ucount = section->ucount + 1;
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if (!ucount)
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return -pte_overflow;
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section->ucount = ucount;
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return 0;
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}
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int pt_section_put(struct pt_section *section)
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{
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uint16_t ucount;
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if (!section)
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return -pte_internal;
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ucount = section->ucount;
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if (!ucount)
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return -pte_overflow;
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section->ucount = ucount - 1;
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return 0;
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}
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int pt_section_map(struct pt_section *section)
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{
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uint16_t ucount, mcount;
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if (!section)
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return -pte_internal;
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ucount = section->ucount;
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if (!ucount)
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return -pte_internal;
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mcount = section->mcount + 1;
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if (!mcount)
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return -pte_overflow;
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section->mcount = mcount;
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return 0;
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}
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int pt_section_unmap(struct pt_section *section)
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{
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uint16_t ucount, mcount;
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if (!section)
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return -pte_internal;
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ucount = section->ucount;
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if (!ucount)
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return -pte_internal;
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mcount = section->mcount;
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if (!mcount)
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return -pte_overflow;
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section->mcount = mcount - 1;
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return 0;
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}
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/* A mock image. */
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struct pt_image {
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/* The section stored in the image.
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*
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* This is either the fixture's section or NULL.
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*/
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struct pt_section *section;
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};
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extern int pt_image_validate(struct pt_image *, struct pt_mapped_section *,
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uint64_t, int);
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extern int pt_image_find(struct pt_image *, struct pt_mapped_section *,
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const struct pt_asid *, uint64_t);
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int pt_image_validate(struct pt_image *image, struct pt_mapped_section *msec,
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uint64_t vaddr, int isid)
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{
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struct pt_section *section;
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(void) vaddr;
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(void) isid;
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if (!image || !msec)
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return -pte_internal;
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section = image->section;
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if (!section)
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return -pte_nomap;
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if (section != msec->section)
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return -pte_nomap;
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return 0;
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}
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int pt_image_find(struct pt_image *image, struct pt_mapped_section *msec,
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const struct pt_asid *asid, uint64_t vaddr)
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{
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struct pt_section *section;
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(void) vaddr;
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if (!image || !msec || !asid)
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return -pte_internal;
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section = image->section;
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if (!section)
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return -pte_nomap;
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if (msec->section)
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return -pte_internal;
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msec->section = section;
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return pt_section_get(section);
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}
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/* A test fixture providing a section and checking the use and map count. */
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struct test_fixture {
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/* A test section. */
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struct pt_section section;
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/* A test cache. */
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struct pt_msec_cache mcache;
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/* A test image. */
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struct pt_image image;
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/* The test fixture initialization and finalization functions. */
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struct ptunit_result (*init)(struct test_fixture *);
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struct ptunit_result (*fini)(struct test_fixture *);
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};
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static struct ptunit_result init_null(void)
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{
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int status;
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status = pt_msec_cache_init(NULL);
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ptu_int_eq(status, -pte_internal);
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return ptu_passed();
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}
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static struct ptunit_result fini_null(void)
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{
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pt_msec_cache_fini(NULL);
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return ptu_passed();
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}
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static struct ptunit_result invalidate_null(void)
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{
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int status;
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status = pt_msec_cache_invalidate(NULL);
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ptu_int_eq(status, -pte_internal);
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return ptu_passed();
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}
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static struct ptunit_result read_null(void)
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{
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const struct pt_mapped_section *msec;
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struct pt_msec_cache mcache;
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struct pt_image image;
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int status;
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status = pt_msec_cache_read(NULL, &msec, &image, 0ull);
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ptu_int_eq(status, -pte_internal);
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status = pt_msec_cache_read(&mcache, NULL, &image, 0ull);
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ptu_int_eq(status, -pte_internal);
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status = pt_msec_cache_read(&mcache, &msec, NULL, 0ull);
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ptu_int_eq(status, -pte_internal);
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return ptu_passed();
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}
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static struct ptunit_result fill_null(void)
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{
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const struct pt_mapped_section *msec;
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struct pt_msec_cache mcache;
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struct pt_image image;
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struct pt_asid asid;
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int status;
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memset(&mcache, 0, sizeof(mcache));
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status = pt_msec_cache_fill(NULL, &msec, &image, &asid, 0ull);
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ptu_int_eq(status, -pte_internal);
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status = pt_msec_cache_fill(&mcache, NULL, &image, &asid, 0ull);
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ptu_int_eq(status, -pte_internal);
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status = pt_msec_cache_fill(&mcache, &msec, NULL, &asid, 0ull);
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ptu_int_eq(status, -pte_internal);
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status = pt_msec_cache_fill(&mcache, &msec, &image, NULL, 0ull);
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ptu_int_eq(status, -pte_internal);
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return ptu_passed();
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}
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static struct ptunit_result invalidate(struct test_fixture *tfix)
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{
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struct pt_section *section;
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int status;
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status = pt_msec_cache_invalidate(&tfix->mcache);
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ptu_int_eq(status, 0);
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section = pt_msec_section(&tfix->mcache.msec);
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ptu_null(section);
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ptu_uint_eq(tfix->section.mcount, 0);
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ptu_uint_eq(tfix->section.ucount, 0);
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return ptu_passed();
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}
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static struct ptunit_result read_nomap(struct test_fixture *tfix)
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{
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const struct pt_mapped_section *msec;
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int status;
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msec = NULL;
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status = pt_msec_cache_read(&tfix->mcache, &msec, &tfix->image, 0ull);
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ptu_int_eq(status, -pte_nomap);
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ptu_null(msec);
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return ptu_passed();
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}
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static struct ptunit_result read(struct test_fixture *tfix)
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{
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const struct pt_mapped_section *msec;
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struct pt_section *section;
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int status;
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status = pt_msec_cache_read(&tfix->mcache, &msec, &tfix->image, 0ull);
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ptu_int_eq(status, 0);
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ptu_ptr_eq(msec, &tfix->mcache.msec);
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section = pt_msec_section(msec);
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ptu_ptr_eq(section, &tfix->section);
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return ptu_passed();
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}
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static struct ptunit_result fill_nomap(struct test_fixture *tfix)
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{
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const struct pt_mapped_section *msec;
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struct pt_asid asid;
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struct pt_section *section;
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int status;
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msec = NULL;
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status = pt_msec_cache_fill(&tfix->mcache, &msec, &tfix->image, &asid,
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0ull);
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ptu_int_eq(status, -pte_nomap);
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section = pt_msec_section(&tfix->mcache.msec);
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ptu_null(section);
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ptu_null(msec);
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ptu_uint_eq(tfix->section.mcount, 0);
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ptu_uint_eq(tfix->section.ucount, 0);
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return ptu_passed();
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}
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static struct ptunit_result fill(struct test_fixture *tfix)
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{
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const struct pt_mapped_section *msec;
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struct pt_section *section;
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struct pt_asid asid;
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int status;
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status = pt_msec_cache_fill(&tfix->mcache, &msec, &tfix->image, &asid,
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0ull);
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ptu_int_eq(status, 0);
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ptu_ptr_eq(msec, &tfix->mcache.msec);
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section = pt_msec_section(msec);
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ptu_ptr_eq(section, &tfix->section);
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ptu_uint_eq(section->mcount, 1);
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ptu_uint_eq(section->ucount, 1);
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return ptu_passed();
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}
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static struct ptunit_result sfix_init(struct test_fixture *tfix)
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{
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memset(&tfix->section, 0, sizeof(tfix->section));
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memset(&tfix->mcache, 0, sizeof(tfix->mcache));
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memset(&tfix->image, 0, sizeof(tfix->image));
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return ptu_passed();
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}
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static struct ptunit_result ifix_init(struct test_fixture *tfix)
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{
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ptu_test(sfix_init, tfix);
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tfix->image.section = &tfix->section;
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return ptu_passed();
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}
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static struct ptunit_result cfix_init(struct test_fixture *tfix)
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{
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ptu_test(sfix_init, tfix);
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tfix->mcache.msec.section = &tfix->section;
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tfix->section.ucount = 1;
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tfix->section.mcount = 1;
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return ptu_passed();
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}
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static struct ptunit_result cifix_init(struct test_fixture *tfix)
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{
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ptu_test(cfix_init, tfix);
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tfix->image.section = &tfix->section;
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return ptu_passed();
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}
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int main(int argc, char **argv)
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{
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struct ptunit_suite suite;
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struct test_fixture sfix, ifix, cfix, cifix;
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sfix.init = sfix_init;
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sfix.fini = NULL;
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ifix.init = ifix_init;
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ifix.fini = NULL;
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cfix.init = cfix_init;
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cfix.fini = NULL;
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cifix.init = cifix_init;
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cifix.fini = NULL;
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suite = ptunit_mk_suite(argc, argv);
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ptu_run(suite, init_null);
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ptu_run(suite, fini_null);
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ptu_run(suite, invalidate_null);
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ptu_run(suite, read_null);
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ptu_run(suite, fill_null);
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ptu_run_f(suite, invalidate, sfix);
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ptu_run_f(suite, invalidate, cfix);
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ptu_run_f(suite, read_nomap, sfix);
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ptu_run_f(suite, read_nomap, ifix);
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ptu_run_f(suite, read_nomap, cfix);
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ptu_run_f(suite, read, cifix);
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ptu_run_f(suite, fill_nomap, sfix);
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ptu_run_f(suite, fill_nomap, cfix);
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ptu_run_f(suite, fill, ifix);
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ptu_run_f(suite, fill, cifix);
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return ptunit_report(&suite);
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}
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