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Diffstat (limited to 'tools/testing/selftests/kvm/s390x/sync_regs_test.c')
-rw-r--r--tools/testing/selftests/kvm/s390x/sync_regs_test.c240
1 files changed, 0 insertions, 240 deletions
diff --git a/tools/testing/selftests/kvm/s390x/sync_regs_test.c b/tools/testing/selftests/kvm/s390x/sync_regs_test.c
deleted file mode 100644
index 636a70ddac1e..000000000000
--- a/tools/testing/selftests/kvm/s390x/sync_regs_test.c
+++ /dev/null
@@ -1,240 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Test for s390x KVM_CAP_SYNC_REGS
- *
- * Based on the same test for x86:
- * Copyright (C) 2018, Google LLC.
- *
- * Adaptions for s390x:
- * Copyright (C) 2019, Red Hat, Inc.
- *
- * Test expected behavior of the KVM_CAP_SYNC_REGS functionality.
- */
-
-#define _GNU_SOURCE /* for program_invocation_short_name */
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/ioctl.h>
-
-#include "test_util.h"
-#include "kvm_util.h"
-#include "diag318_test_handler.h"
-#include "kselftest.h"
-
-static void guest_code(void)
-{
- /*
- * We embed diag 501 here instead of doing a ucall to avoid that
- * the compiler has messed with r11 at the time of the ucall.
- */
- asm volatile (
- "0: diag 0,0,0x501\n"
- " ahi 11,1\n"
- " j 0b\n"
- );
-}
-
-#define REG_COMPARE(reg) \
- TEST_ASSERT(left->reg == right->reg, \
- "Register " #reg \
- " values did not match: 0x%llx, 0x%llx\n", \
- left->reg, right->reg)
-
-#define REG_COMPARE32(reg) \
- TEST_ASSERT(left->reg == right->reg, \
- "Register " #reg \
- " values did not match: 0x%x, 0x%x\n", \
- left->reg, right->reg)
-
-
-static void compare_regs(struct kvm_regs *left, struct kvm_sync_regs *right)
-{
- int i;
-
- for (i = 0; i < 16; i++)
- REG_COMPARE(gprs[i]);
-}
-
-static void compare_sregs(struct kvm_sregs *left, struct kvm_sync_regs *right)
-{
- int i;
-
- for (i = 0; i < 16; i++)
- REG_COMPARE32(acrs[i]);
-
- for (i = 0; i < 16; i++)
- REG_COMPARE(crs[i]);
-}
-
-#undef REG_COMPARE
-
-#define TEST_SYNC_FIELDS (KVM_SYNC_GPRS|KVM_SYNC_ACRS|KVM_SYNC_CRS|KVM_SYNC_DIAG318)
-#define INVALID_SYNC_FIELD 0x80000000
-
-void test_read_invalid(struct kvm_vcpu *vcpu)
-{
- struct kvm_run *run = vcpu->run;
- int rv;
-
- /* Request reading invalid register set from VCPU. */
- run->kvm_valid_regs = INVALID_SYNC_FIELD;
- rv = _vcpu_run(vcpu);
- TEST_ASSERT(rv < 0 && errno == EINVAL,
- "Invalid kvm_valid_regs did not cause expected KVM_RUN error: %d\n",
- rv);
- run->kvm_valid_regs = 0;
-
- run->kvm_valid_regs = INVALID_SYNC_FIELD | TEST_SYNC_FIELDS;
- rv = _vcpu_run(vcpu);
- TEST_ASSERT(rv < 0 && errno == EINVAL,
- "Invalid kvm_valid_regs did not cause expected KVM_RUN error: %d\n",
- rv);
- run->kvm_valid_regs = 0;
-}
-
-void test_set_invalid(struct kvm_vcpu *vcpu)
-{
- struct kvm_run *run = vcpu->run;
- int rv;
-
- /* Request setting invalid register set into VCPU. */
- run->kvm_dirty_regs = INVALID_SYNC_FIELD;
- rv = _vcpu_run(vcpu);
- TEST_ASSERT(rv < 0 && errno == EINVAL,
- "Invalid kvm_dirty_regs did not cause expected KVM_RUN error: %d\n",
- rv);
- run->kvm_dirty_regs = 0;
-
- run->kvm_dirty_regs = INVALID_SYNC_FIELD | TEST_SYNC_FIELDS;
- rv = _vcpu_run(vcpu);
- TEST_ASSERT(rv < 0 && errno == EINVAL,
- "Invalid kvm_dirty_regs did not cause expected KVM_RUN error: %d\n",
- rv);
- run->kvm_dirty_regs = 0;
-}
-
-void test_req_and_verify_all_valid_regs(struct kvm_vcpu *vcpu)
-{
- struct kvm_run *run = vcpu->run;
- struct kvm_sregs sregs;
- struct kvm_regs regs;
- int rv;
-
- /* Request and verify all valid register sets. */
- run->kvm_valid_regs = TEST_SYNC_FIELDS;
- rv = _vcpu_run(vcpu);
- TEST_ASSERT(rv == 0, "vcpu_run failed: %d\n", rv);
- TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_S390_SIEIC);
- TEST_ASSERT(run->s390_sieic.icptcode == 4 &&
- (run->s390_sieic.ipa >> 8) == 0x83 &&
- (run->s390_sieic.ipb >> 16) == 0x501,
- "Unexpected interception code: ic=%u, ipa=0x%x, ipb=0x%x\n",
- run->s390_sieic.icptcode, run->s390_sieic.ipa,
- run->s390_sieic.ipb);
-
- vcpu_regs_get(vcpu, &regs);
- compare_regs(&regs, &run->s.regs);
-
- vcpu_sregs_get(vcpu, &sregs);
- compare_sregs(&sregs, &run->s.regs);
-}
-
-void test_set_and_verify_various_reg_values(struct kvm_vcpu *vcpu)
-{
- struct kvm_run *run = vcpu->run;
- struct kvm_sregs sregs;
- struct kvm_regs regs;
- int rv;
-
- /* Set and verify various register values */
- run->s.regs.gprs[11] = 0xBAD1DEA;
- run->s.regs.acrs[0] = 1 << 11;
-
- run->kvm_valid_regs = TEST_SYNC_FIELDS;
- run->kvm_dirty_regs = KVM_SYNC_GPRS | KVM_SYNC_ACRS;
-
- if (get_diag318_info() > 0) {
- run->s.regs.diag318 = get_diag318_info();
- run->kvm_dirty_regs |= KVM_SYNC_DIAG318;
- }
-
- rv = _vcpu_run(vcpu);
- TEST_ASSERT(rv == 0, "vcpu_run failed: %d\n", rv);
- TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_S390_SIEIC);
- TEST_ASSERT(run->s.regs.gprs[11] == 0xBAD1DEA + 1,
- "r11 sync regs value incorrect 0x%llx.",
- run->s.regs.gprs[11]);
- TEST_ASSERT(run->s.regs.acrs[0] == 1 << 11,
- "acr0 sync regs value incorrect 0x%x.",
- run->s.regs.acrs[0]);
- TEST_ASSERT(run->s.regs.diag318 == get_diag318_info(),
- "diag318 sync regs value incorrect 0x%llx.",
- run->s.regs.diag318);
-
- vcpu_regs_get(vcpu, &regs);
- compare_regs(&regs, &run->s.regs);
-
- vcpu_sregs_get(vcpu, &sregs);
- compare_sregs(&sregs, &run->s.regs);
-}
-
-void test_clear_kvm_dirty_regs_bits(struct kvm_vcpu *vcpu)
-{
- struct kvm_run *run = vcpu->run;
- int rv;
-
- /* Clear kvm_dirty_regs bits, verify new s.regs values are
- * overwritten with existing guest values.
- */
- run->kvm_valid_regs = TEST_SYNC_FIELDS;
- run->kvm_dirty_regs = 0;
- run->s.regs.gprs[11] = 0xDEADBEEF;
- run->s.regs.diag318 = 0x4B1D;
- rv = _vcpu_run(vcpu);
- TEST_ASSERT(rv == 0, "vcpu_run failed: %d\n", rv);
- TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_S390_SIEIC);
- TEST_ASSERT(run->s.regs.gprs[11] != 0xDEADBEEF,
- "r11 sync regs value incorrect 0x%llx.",
- run->s.regs.gprs[11]);
- TEST_ASSERT(run->s.regs.diag318 != 0x4B1D,
- "diag318 sync regs value incorrect 0x%llx.",
- run->s.regs.diag318);
-}
-
-struct testdef {
- const char *name;
- void (*test)(struct kvm_vcpu *vcpu);
-} testlist[] = {
- { "read invalid", test_read_invalid },
- { "set invalid", test_set_invalid },
- { "request+verify all valid regs", test_req_and_verify_all_valid_regs },
- { "set+verify various regs", test_set_and_verify_various_reg_values },
- { "clear kvm_dirty_regs bits", test_clear_kvm_dirty_regs_bits },
-};
-
-int main(int argc, char *argv[])
-{
- struct kvm_vcpu *vcpu;
- struct kvm_vm *vm;
- int idx;
-
- TEST_REQUIRE(kvm_has_cap(KVM_CAP_SYNC_REGS));
-
- ksft_print_header();
-
- ksft_set_plan(ARRAY_SIZE(testlist));
-
- /* Create VM */
- vm = vm_create_with_one_vcpu(&vcpu, guest_code);
-
- for (idx = 0; idx < ARRAY_SIZE(testlist); idx++) {
- testlist[idx].test(vcpu);
- ksft_test_result_pass("%s\n", testlist[idx].name);
- }
-
- kvm_vm_free(vm);
-
- ksft_finished(); /* Print results and exit() accordingly */
-}
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