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kselftest/arm64: mte: user_mem: add more test types 

To expand the test coverage for MTE tags in userspace memory,
also perform the test with `write`, `readv` and `writev` syscalls.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Tested-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220209152240.52788-6-joey.gouly@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Joey Gouly 2022-02-09 15:22:39 +00:00 committed by Will Deacon
parent b9fc700176
commit e8d3974f34
1 changed files with 21 additions and 0 deletions
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21
tools/testing/selftests/arm64/mte/check_user_mem.c
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@ -11,6 +11,7 @@
#include <string.h> #include <string.h>
#include <ucontext.h> #include <ucontext.h>
#include <unistd.h> #include <unistd.h>
#include <sys/uio.h>
#include <sys/mman.h> #include <sys/mman.h>
#include "kselftest.h" #include "kselftest.h"
@ -21,6 +22,9 @@ static size_t page_sz;
enum test_type { enum test_type {
READ_TEST, READ_TEST,
WRITE_TEST,
READV_TEST,
WRITEV_TEST,
LAST_TEST, LAST_TEST,
}; };
@ -81,6 +85,23 @@ static int check_usermem_access_fault(int mem_type, int mode, int mapping,
case READ_TEST: case READ_TEST:
syscall_len = read(fd, ptr + ptroff, size); syscall_len = read(fd, ptr + ptroff, size);
break; break;
case WRITE_TEST:
syscall_len = write(fd, ptr + ptroff, size);
break;
case READV_TEST: {
struct iovec iov[1];
iov[0].iov_base = ptr + ptroff;
iov[0].iov_len = size;
syscall_len = readv(fd, iov, 1);
break;
}
case WRITEV_TEST: {
struct iovec iov[1];
iov[0].iov_base = ptr + ptroff;
iov[0].iov_len = size;
syscall_len = writev(fd, iov, 1);
break;
}
case LAST_TEST: case LAST_TEST:
goto usermem_acc_err; goto usermem_acc_err;
} }