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// IBM_PROLOG_BEGIN_TAG
// This is an automatically generated prolog.
//
// $Source: src/usr/testcore/kernel/vmmbasetest.H $
//
// IBM CONFIDENTIAL
//
// COPYRIGHT International Business Machines Corp. 2011
//
// p1
//
// Object Code Only (OCO) source materials
// Licensed Internal Code Source Materials
// IBM HostBoot Licensed Internal Code
//
// The source code for this program is not published or other-
// wise divested of its trade secrets, irrespective of what has
// been deposited with the U.S. Copyright Office.
//
// Origin: 30
//
// IBM_PROLOG_END
/** @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("Test case: 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("Test case: 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("Test case: 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.
}
void 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);
}
}
private:
static void readFromNULL(void* unused)
{
printk("%lx", (*(uint64_t*)NULL));
task_end();
}
static void writeToNULL(void* unused)
{
(*(uint64_t*)NULL) = 0x12345678;
task_end();
}
static void writeToKernelCode(void* unused)
{
(*(*(uint64_t**)&printk)) = 0x12345678;
task_end();
}
static void msgDaemon(void* unused)
{
msg_t* message = NULL;
uint64_t ea = 0;
while (1)
{
message = msg_wait(iv_mq);
if (message)
{
ea = message->data[0];
/*printkd("Effective Addr: 0x%lX, %s\n",ea,
message->type==MSG_MM_RP_READ?"READ":"WRITE");*/
message->data[1] = 0;
msg_respond(iv_mq, message);
}
}
}
};
msg_q_t VmmBaseTest::iv_mq = msg_q_create();
#endif
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