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qtest: Adding qtest_memset and qmemset. 

Currently, libqtest allows for memread and memwrite, but
does not offer a simple way to zero out regions of memory.
This patch adds a simple function to do so.

Signed-off-by: John Snow <jsnow@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
John Snow 2014-08-04 17:11:20 -04:00 committed by Stefan Hajnoczi
parent 552b48f44d
commit 86298845e1
2 changed files with 36 additions and 0 deletions
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12
tests/libqtest.c
View File

@ -659,6 +659,18 @@ void qtest_memwrite(QTestState *s, uint64_t addr, const void *data, size_t size)
qtest_rsp(s, 0);
}
void qtest_memset(QTestState *s, uint64_t addr, uint8_t pattern, size_t size)
{
size_t i;
qtest_sendf(s, "write 0x%" PRIx64 " 0x%zx 0x", addr, size);
for (i = 0; i < size; i++) {
qtest_sendf(s, "%02x", pattern);
}
qtest_sendf(s, "\n");
qtest_rsp(s, 0);
}
QDict *qmp(const char *fmt, ...)
{
va_list ap;

24
tests/libqtest.h
View File

@ -282,6 +282,17 @@ void qtest_memread(QTestState *s, uint64_t addr, void *data, size_t size);
*/
void qtest_memwrite(QTestState *s, uint64_t addr, const void *data, size_t size);
/**
* qtest_memset:
* @s: #QTestState instance to operate on.
* @addr: Guest address to write to.
* @patt: Byte pattern to fill the guest memory region with.
* @size: Number of bytes to write.
*
* Write a pattern to guest memory.
*/
void qtest_memset(QTestState *s, uint64_t addr, uint8_t patt, size_t size);
/**
* qtest_clock_step_next:
* @s: #QTestState instance to operate on.
@ -620,6 +631,19 @@ static inline void memwrite(uint64_t addr, const void *data, size_t size)
qtest_memwrite(global_qtest, addr, data, size);
}
/**
* qmemset:
* @addr: Guest address to write to.
* @patt: Byte pattern to fill the guest memory region with.
* @size: Number of bytes to write.
*
* Write a pattern to guest memory.
*/
static inline void qmemset(uint64_t addr, uint8_t patt, size_t size)
{
qtest_memset(global_qtest, addr, patt, size);
}
/**
* clock_step_next:
*