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/*
* qtest vmcoreinfo test case
*
* Copyright Red Hat. 2025.
*
* Authors:
* Ani Sinha <anisinha@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "libqos/libqos-pc.h"
#include "libqtest.h"
#include "standard-headers/linux/qemu_fw_cfg.h"
#include "libqos/fw_cfg.h"
#include "qemu/bswap.h"
#include "hw/misc/vmcoreinfo.h"
static void test_vmcoreinfo_write_basic(void)
{
QFWCFG *fw_cfg;
QOSState *qs;
FWCfgVMCoreInfo info;
size_t filesize;
uint16_t guest_format;
uint16_t host_format;
uint32_t size;
uint64_t paddr;
qs = qtest_pc_boot("-device vmcoreinfo");
fw_cfg = pc_fw_cfg_init(qs->qts);
memset(&info, 0 , sizeof(info));
/* read vmcoreinfo and read back the host format */
filesize = qfw_cfg_read_file(fw_cfg, qs, FW_CFG_VMCOREINFO_FILENAME,
&info, sizeof(info));
g_assert_cmpint(filesize, ==, sizeof(info));
host_format = le16_to_cpu(info.host_format);
g_assert_cmpint(host_format, ==, FW_CFG_VMCOREINFO_FORMAT_ELF);
memset(&info, 0 , sizeof(info));
info.guest_format = cpu_to_le16(FW_CFG_VMCOREINFO_FORMAT_ELF);
info.size = cpu_to_le32(1 * MiB);
info.paddr = cpu_to_le64(0xffffff00);
info.host_format = cpu_to_le16(host_format);
/* write the values to the host */
filesize = qfw_cfg_write_file(fw_cfg, qs, FW_CFG_VMCOREINFO_FILENAME,
&info, sizeof(info));
g_assert_cmpint(filesize, ==, sizeof(info));
memset(&info, 0 , sizeof(info));
/* now read back the values we wrote and compare that they are the same */
filesize = qfw_cfg_read_file(fw_cfg, qs, FW_CFG_VMCOREINFO_FILENAME,
&info, sizeof(info));
g_assert_cmpint(filesize, ==, sizeof(info));
size = le32_to_cpu(info.size);
paddr = le64_to_cpu(info.paddr);
guest_format = le16_to_cpu(info.guest_format);
g_assert_cmpint(size, ==, 1 * MiB);
g_assert_cmpint(paddr, ==, 0xffffff00);
g_assert_cmpint(guest_format, ==, FW_CFG_VMCOREINFO_FORMAT_ELF);
pc_fw_cfg_uninit(fw_cfg);
qtest_shutdown(qs);
}
int main(int argc, char **argv)
{
const char *arch = qtest_get_arch();
g_test_init(&argc, &argv, NULL);
if (strcmp(arch, "i386") && strcmp(arch, "x86_64")) {
/* skip for non-x86 */
exit(EXIT_SUCCESS);
}
qtest_add_func("vmcoreinfo/basic-write",
test_vmcoreinfo_write_basic);
return g_test_run();
}
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