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/** @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 <arch/ppc.H>
class VmmBaseTest : public CxxTest::TestSuite
{
public:
static volatile int rc;
void testNullAccess()
{
rc = 0; sync();
printk("Test case: Expect to see uncaught exception! ");
task_create(readFromNULL, NULL);
while (rc == 0) task_yield();
task_yield();
if (rc == -1)
{
TS_FAIL("Write to NULL not caught.");
}
rc = 0; sync();
printk("Test case: Expect to see uncaught exception! ");
task_create(writeToNULL, NULL);
while (rc == 0) task_yield();
task_yield();
if (rc == -1)
{
TS_FAIL("Write to NULL not caught.");
}
}
void testWriteToKernelCode()
{
rc = 0; sync();
printk("Test case: Expect to see uncaught exception! ");
task_create(writeToKernelCode, NULL);
while (rc == 0) task_yield();
task_yield();
if (rc == -1)
{
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.
}
private:
static void readFromNULL(void* unused)
{
rc = 1; sync();
printk("%lx", (*(uint64_t*)NULL)); sync();
rc = -1; sync();
task_end();
}
static void writeToNULL(void* unused)
{
rc = 1; sync();
(*(uint64_t*)NULL) = 0x12345678; sync();
rc = -1; sync();
task_end();
}
static void writeToKernelCode(void* unused)
{
rc = 1; sync();
(*(*(uint64_t**)&printk)) = 0x12345678; sync();
rc = -1; sync();
task_end();
}
};
volatile int VmmBaseTest::rc = 0;
#endif
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