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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/testcore/kernel/vmmbasetest.H $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2011,2018 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
/** @file vmmbasetest.H
* @brief Test cases for permission settings on the base block of the VMM.
*/
#ifndef __KERNEL_VMMBASETEST_H
#define __KERNEL_VMMBASETEST_H
#include <cxxtest/TestSuite.H>
#include <sys/task.h>
#include <kernel/console.H>
#include <kernel/pagemgr.H>
#include <arch/ppc.H>
#include <sys/mm.h>
#include <usr/vmmconst.h>
#include <targeting/common/util.H>
class VmmBaseTest : public CxxTest::TestSuite
{
public:
static msg_q_t iv_mq;
void testNullAccess()
{
int status;
printk("testNullAccess1: Expect to see uncaught exception! ");
tid_t child = task_create(readFromNULL, NULL);
if ((child != task_wait_tid(child, &status, NULL)) ||
(status != TASK_STATUS_CRASHED))
{
TS_FAIL("Write to NULL not caught.");
}
printk("testNullAccess2: Expect to see uncaught exception! ");
child = task_create(writeToNULL, NULL);
if ((child != task_wait_tid(child, &status, NULL)) ||
(status != TASK_STATUS_CRASHED))
{
TS_FAIL("Write to NULL not caught.");
}
}
void testWriteToKernelCode()
{
int status;
printk("testWriteToKernelCode: Expect to see uncaught exception! ");
tid_t child = task_create(writeToKernelCode, NULL);
if ((child != task_wait_tid(child, &status, NULL)) ||
(status != TASK_STATUS_CRASHED))
{
TS_FAIL("Write to kernel code not caught.");
}
}
void testExecuteKernelDataSpace()
{
// @TODO. VMM not ready.
}
void testWriteModuleText()
{
// @TODO. VMM not ready.
}
void testExecuteModuleDataSpace()
{
// @TODO. VMM not ready.
}
// Do not run this test by default since we now have a lot of
// mainstore to fill up. We know that this function gets
// tested during the IPL so the unit test isn't required.
// However, leaving it here in case we want to run some
// targeted tests at a later date.
void skipme_testCastOutPages()
{
uint64_t l_testAddr = VMM_VADDR_RMVPAGE_TEST;
uint64_t l_testSize = VMM_SIZE_RMVPAGE_TEST;
uint64_t vaddr = l_testAddr+l_testSize;
uint64_t vsize = PageManager::availPages()*PAGESIZE;
int rc = mm_alloc_block(iv_mq,reinterpret_cast<void*>(vaddr),vsize);
if (rc != 0)
{
TS_FAIL("Unable to allocate block.\n");
}
//TODO - Mix READ_ONLY and WRITE_TRACKED pages to cast out test
rc = mm_set_permission(reinterpret_cast<void*>(vaddr),vsize,
(uint64_t)(READ_ONLY));
if (rc != 0)
{
TS_FAIL("Failed to set block permissions to READ_ONLY.\n");
}
task_create(msgDaemon, NULL);
//Touch each page until less than 10% free pages remain
//printk("Page Percent Avail: 0x%lX\n",PageManager::queryAvail());
for(uint64_t i = vaddr; i < (vaddr + vsize); i += PAGESIZE)
{
if (PageManager::queryAvail() < 10)
{
printkd("Less than 10 percent pages remain\n");
break;
}
(*(volatile uint64_t *)i); sync();
}
// Don't delay in VPO because it will take VERY long to
// run the simulator
if( !TARGETING::is_vpo() )
{
nanosleep(1,0);
}
}
void testHugeMalloc()
{
int status;
printk("testHugeMalloc: Expect to see uncaught exception! ");isync();
tid_t child = task_create(bigMalloc, NULL);
if ((child != task_wait_tid(child, &status, NULL)) ||
(status != TASK_STATUS_CRASHED))
{
TS_FAIL("testHugeMalloc> Giant malloc didn't crash.");
}
}
private:
static void* readFromNULL(void* unused)
{
printk("%lx", (*(uint64_t*)NULL));
return NULL;
}
static void* writeToNULL(void* unused)
{
(*(uint64_t*)NULL) = 0x12345678;
return NULL;
}
static void* writeToKernelCode(void* unused)
{
uint64_t value = 0x12345678;
union fn_ptr
{
void (*opd)(const char*, ...);
uint64_t** data;
};
fn_ptr function = { printk };
memcpy(*function.data, &value, sizeof(value));
return NULL;
}
static void* msgDaemon(void* unused)
{
msg_t* message = NULL;
while (1)
{
message = msg_wait(iv_mq);
if (message)
{
/*printkd("Effective Addr: 0x%lX, %s\n",message->data[0],
message->type==MSG_MM_RP_READ?"READ":"WRITE");*/
message->data[1] = 0;
msg_respond(iv_mq, message);
}
}
return NULL;
}
static void* bigMalloc(void* unused)
{
uint8_t* ptr = (uint8_t*)malloc(VMM_MEMORY_SIZE);
for( size_t x=0; x<(VMM_MEMORY_SIZE); x+=MEGABYTE )
{
ptr[x] = x;
}
return NULL;
}
};
msg_q_t VmmBaseTest::iv_mq = msg_q_create();
#endif
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