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tests/qtest: QTest example for RISC-V CSR register

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Added demo for reading CSR register from qtest environment.

Signed-off-by: Ivan Klokov <ivan.klokov@syntacore.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
This commit is contained in:
Ivan Klokov 2025-01-09 12:10:44 +03:00 • committed by Fabiano Rosas
parent 1addf57177
commit b4a91c5e71
2 changed files with 57 additions and 1 deletions
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2
tests/qtest/meson.build
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@ -274,7 +274,7 @@ qtests_s390x = \
qtests_riscv32 = \
(config_all_devices.has_key('CONFIG_SIFIVE_E_AON') ? ['sifive-e-aon-watchdog-test'] : [])
qtests_riscv64 = \
qtests_riscv64 = ['riscv-csr-test'] + \
(unpack_edk2_blobs ? ['bios-tables-test'] : [])
qos_test_ss = ss.source_set()

56
tests/qtest/riscv-csr-test.c Normal file
View file

@ -0,0 +1,56 @@
/*
* QTest testcase for RISC-V CSRs
*
* Copyright (c) 2024 Syntacore.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "qemu/osdep.h"
#include "libqtest.h"
#define CSR_MVENDORID 0xf11
#define CSR_MISELECT 0x350
static void run_test_csr(void)
{
uint64_t res;
uint64_t val = 0;
QTestState *qts = qtest_init("-machine virt -cpu veyron-v1");
res = qtest_csr_call(qts, "get_csr", 0, CSR_MVENDORID, &val);
g_assert_cmpint(res, ==, 0);
g_assert_cmpint(val, ==, 0x61f);
val = 0xff;
res = qtest_csr_call(qts, "set_csr", 0, CSR_MISELECT, &val);
g_assert_cmpint(res, ==, 0);
val = 0;
res = qtest_csr_call(qts, "get_csr", 0, CSR_MISELECT, &val);
g_assert_cmpint(res, ==, 0);
g_assert_cmpint(val, ==, 0xff);
qtest_quit(qts);
}
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
qtest_add_func("/cpu/csr", run_test_csr);
return g_test_run();
}