selftests: KVM: s390: check for registers to NOT change on reset (3203a017) · Commits · 戴 / test

tools/testing/selftests/kvm/s390x/resets.c

+53 −2

Original line number	Diff line number	Diff line
		@@ -40,8 +40,22 @@ static void guest_code_initial(void)
		" lctlg 8,8,%1\n"
		" lctlg 10,10,%2\n"
		" lctlg 11,11,%3\n"
		: : "m" (cr2_59), "m" (cr8_63), "m" (cr10), "m" (cr11) : "2");
		GUEST_SYNC(0);
		/* now clobber some general purpose regs */
		" llihh 0,0xffff\n"
		" llihl 1,0x5555\n"
		" llilh 2,0xaaaa\n"
		" llill 3,0x0000\n"
		/* now clobber a floating point reg */
		" lghi 4,0x1\n"
		" cdgbr 0,4\n"
		/* now clobber an access reg */
		" sar 9,4\n"
		/* We embed diag 501 here to control register content */
		" diag 0,0,0x501\n"
		:
		: "m" (cr2_59), "m" (cr8_63), "m" (cr10), "m" (cr11)
		/* no clobber list as this should not return */
		);
		}

		static void test_one_reg(uint64_t id, uint64_t value)
		@@ -98,6 +112,21 @@ static void assert_clear(void)
		"vrs0-15 == 0 (sync_regs)");
		}

		static void assert_initial_noclear(void)
		{
		TEST_ASSERT(sync_regs->gprs[0] == 0xffff000000000000UL,
		"gpr0 == 0xffff000000000000 (sync_regs)");
		TEST_ASSERT(sync_regs->gprs[1] == 0x0000555500000000UL,
		"gpr1 == 0x0000555500000000 (sync_regs)");
		TEST_ASSERT(sync_regs->gprs[2] == 0x00000000aaaa0000UL,
		"gpr2 == 0x00000000aaaa0000 (sync_regs)");
		TEST_ASSERT(sync_regs->gprs[3] == 0x0000000000000000UL,
		"gpr3 == 0x0000000000000000 (sync_regs)");
		TEST_ASSERT(sync_regs->fprs[0] == 0x3ff0000000000000UL,
		"fpr0 == 0f1 (sync_regs)");
		TEST_ASSERT(sync_regs->acrs[9] == 1, "ar9 == 1 (sync_regs)");
		}

		static void assert_initial(void)
		{
		struct kvm_sregs sregs;
		@@ -140,6 +169,14 @@ static void assert_initial(void)
		test_one_reg(KVM_REG_S390_CLOCK_COMP, 0);
		}

		static void assert_normal_noclear(void)
		{
		TEST_ASSERT(sync_regs->crs[2] == 0x10, "cr2 == 10 (sync_regs)");
		TEST_ASSERT(sync_regs->crs[8] == 1, "cr10 == 1 (sync_regs)");
		TEST_ASSERT(sync_regs->crs[10] == 1, "cr10 == 1 (sync_regs)");
		TEST_ASSERT(sync_regs->crs[11] == -1, "cr11 == -1 (sync_regs)");
		}

		static void assert_normal(void)
		{
		test_one_reg(KVM_REG_S390_PFTOKEN, KVM_S390_PFAULT_TOKEN_INVALID);
		@@ -176,7 +213,13 @@ static void test_normal(void)
		inject_irq(VCPU_ID);

		vcpu_ioctl(vm, VCPU_ID, KVM_S390_NORMAL_RESET, 0);

		/* must clears */
		assert_normal();
		/* must not clears */
		assert_normal_noclear();
		assert_initial_noclear();

		kvm_vm_free(vm);
		}

		@@ -192,8 +235,13 @@ static void test_initial(void)
		inject_irq(VCPU_ID);

		vcpu_ioctl(vm, VCPU_ID, KVM_S390_INITIAL_RESET, 0);

		/* must clears */
		assert_normal();
		assert_initial();
		/* must not clears */
		assert_initial_noclear();

		kvm_vm_free(vm);
		}

		@@ -209,9 +257,12 @@ static void test_clear(void)
		inject_irq(VCPU_ID);

		vcpu_ioctl(vm, VCPU_ID, KVM_S390_CLEAR_RESET, 0);

		/* must clears */
		assert_normal();
		assert_initial();
		assert_clear();

		kvm_vm_free(vm);
		}

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