kvm.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: kvm@vger.kernel.org, Paolo Bonzini <pbonzini@redhat.com>,
	Sean Christopherson <seanjc@google.com>
Cc: Wanpeng Li <wanpengli@tencent.com>,
	Jim Mattson <jmattson@google.com>,
	Michael Kelley <mikelley@microsoft.com>,
	Maxim Levitsky <mlevitsk@redhat.com>,
	linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 4/6] KVM: selftests: Rename 'msr->availble' to 'msr->fault_exepected' in hyperv_features test
Date: Fri, 16 Sep 2022 15:52:03 +0200	[thread overview]
Message-ID: <20220916135205.3185973-5-vkuznets@redhat.com> (raw)
In-Reply-To: <20220916135205.3185973-1-vkuznets@redhat.com>

It may not be clear what 'msr->availble' means. The test actually
checks that accessing the particular MSR doesn't cause #GP, rename
the varialble accordingly.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
 .../selftests/kvm/x86_64/hyperv_features.c    | 96 +++++++++----------
 1 file changed, 48 insertions(+), 48 deletions(-)

diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_features.c b/tools/testing/selftests/kvm/x86_64/hyperv_features.c
index 79ab0152d281..1383b979e90b 100644
--- a/tools/testing/selftests/kvm/x86_64/hyperv_features.c
+++ b/tools/testing/selftests/kvm/x86_64/hyperv_features.c
@@ -33,7 +33,7 @@ static inline uint8_t hypercall(u64 control, vm_vaddr_t input_address,
 
 struct msr_data {
 	uint32_t idx;
-	bool available;
+	bool fault_expected;
 	bool write;
 	u64 write_val;
 };
@@ -56,10 +56,10 @@ static void guest_msr(struct msr_data *msr)
 	else
 		vector = wrmsr_safe(msr->idx, msr->write_val);
 
-	if (msr->available)
-		GUEST_ASSERT_2(!vector, msr->idx, vector);
-	else
+	if (msr->fault_expected)
 		GUEST_ASSERT_2(vector == GP_VECTOR, msr->idx, vector);
+	else
+		GUEST_ASSERT_2(!vector, msr->idx, vector);
 	GUEST_DONE();
 }
 
@@ -153,12 +153,12 @@ static void guest_test_msrs_access(void)
 			 */
 			msr->idx = HV_X64_MSR_GUEST_OS_ID;
 			msr->write = 0;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 		case 1:
 			msr->idx = HV_X64_MSR_HYPERCALL;
 			msr->write = 0;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 		case 2:
 			feat->eax |= HV_MSR_HYPERCALL_AVAILABLE;
@@ -169,116 +169,116 @@ static void guest_test_msrs_access(void)
 			msr->idx = HV_X64_MSR_GUEST_OS_ID;
 			msr->write = 1;
 			msr->write_val = LINUX_OS_ID;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 		case 3:
 			msr->idx = HV_X64_MSR_GUEST_OS_ID;
 			msr->write = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 		case 4:
 			msr->idx = HV_X64_MSR_HYPERCALL;
 			msr->write = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 
 		case 5:
 			msr->idx = HV_X64_MSR_VP_RUNTIME;
 			msr->write = 0;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 		case 6:
 			feat->eax |= HV_MSR_VP_RUNTIME_AVAILABLE;
 			msr->idx = HV_X64_MSR_VP_RUNTIME;
 			msr->write = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 		case 7:
 			/* Read only */
 			msr->idx = HV_X64_MSR_VP_RUNTIME;
 			msr->write = 1;
 			msr->write_val = 1;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 
 		case 8:
 			msr->idx = HV_X64_MSR_TIME_REF_COUNT;
 			msr->write = 0;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 		case 9:
 			feat->eax |= HV_MSR_TIME_REF_COUNT_AVAILABLE;
 			msr->idx = HV_X64_MSR_TIME_REF_COUNT;
 			msr->write = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 		case 10:
 			/* Read only */
 			msr->idx = HV_X64_MSR_TIME_REF_COUNT;
 			msr->write = 1;
 			msr->write_val = 1;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 
 		case 11:
 			msr->idx = HV_X64_MSR_VP_INDEX;
 			msr->write = 0;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 		case 12:
 			feat->eax |= HV_MSR_VP_INDEX_AVAILABLE;
 			msr->idx = HV_X64_MSR_VP_INDEX;
 			msr->write = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 		case 13:
 			/* Read only */
 			msr->idx = HV_X64_MSR_VP_INDEX;
 			msr->write = 1;
 			msr->write_val = 1;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 
 		case 14:
 			msr->idx = HV_X64_MSR_RESET;
 			msr->write = 0;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 		case 15:
 			feat->eax |= HV_MSR_RESET_AVAILABLE;
 			msr->idx = HV_X64_MSR_RESET;
 			msr->write = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 		case 16:
 			msr->idx = HV_X64_MSR_RESET;
 			msr->write = 1;
 			msr->write_val = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 
 		case 17:
 			msr->idx = HV_X64_MSR_REFERENCE_TSC;
 			msr->write = 0;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 		case 18:
 			feat->eax |= HV_MSR_REFERENCE_TSC_AVAILABLE;
 			msr->idx = HV_X64_MSR_REFERENCE_TSC;
 			msr->write = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 		case 19:
 			msr->idx = HV_X64_MSR_REFERENCE_TSC;
 			msr->write = 1;
 			msr->write_val = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 
 		case 20:
 			msr->idx = HV_X64_MSR_EOM;
 			msr->write = 0;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 		case 21:
 			/*
@@ -287,145 +287,145 @@ static void guest_test_msrs_access(void)
 			 */
 			msr->idx = HV_X64_MSR_EOM;
 			msr->write = 0;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 		case 22:
 			feat->eax |= HV_MSR_SYNIC_AVAILABLE;
 			msr->idx = HV_X64_MSR_EOM;
 			msr->write = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 		case 23:
 			msr->idx = HV_X64_MSR_EOM;
 			msr->write = 1;
 			msr->write_val = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 
 		case 24:
 			msr->idx = HV_X64_MSR_STIMER0_CONFIG;
 			msr->write = 0;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 		case 25:
 			feat->eax |= HV_MSR_SYNTIMER_AVAILABLE;
 			msr->idx = HV_X64_MSR_STIMER0_CONFIG;
 			msr->write = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 		case 26:
 			msr->idx = HV_X64_MSR_STIMER0_CONFIG;
 			msr->write = 1;
 			msr->write_val = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 		case 27:
 			/* Direct mode test */
 			msr->idx = HV_X64_MSR_STIMER0_CONFIG;
 			msr->write = 1;
 			msr->write_val = 1 << 12;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 		case 28:
 			feat->edx |= HV_STIMER_DIRECT_MODE_AVAILABLE;
 			msr->idx = HV_X64_MSR_STIMER0_CONFIG;
 			msr->write = 1;
 			msr->write_val = 1 << 12;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 
 		case 29:
 			msr->idx = HV_X64_MSR_EOI;
 			msr->write = 0;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 		case 30:
 			feat->eax |= HV_MSR_APIC_ACCESS_AVAILABLE;
 			msr->idx = HV_X64_MSR_EOI;
 			msr->write = 1;
 			msr->write_val = 1;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 
 		case 31:
 			msr->idx = HV_X64_MSR_TSC_FREQUENCY;
 			msr->write = 0;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 		case 32:
 			feat->eax |= HV_ACCESS_FREQUENCY_MSRS;
 			msr->idx = HV_X64_MSR_TSC_FREQUENCY;
 			msr->write = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 		case 33:
 			/* Read only */
 			msr->idx = HV_X64_MSR_TSC_FREQUENCY;
 			msr->write = 1;
 			msr->write_val = 1;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 
 		case 34:
 			msr->idx = HV_X64_MSR_REENLIGHTENMENT_CONTROL;
 			msr->write = 0;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 		case 35:
 			feat->eax |= HV_ACCESS_REENLIGHTENMENT;
 			msr->idx = HV_X64_MSR_REENLIGHTENMENT_CONTROL;
 			msr->write = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 		case 36:
 			msr->idx = HV_X64_MSR_REENLIGHTENMENT_CONTROL;
 			msr->write = 1;
 			msr->write_val = 1;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 		case 37:
 			/* Can only write '0' */
 			msr->idx = HV_X64_MSR_TSC_EMULATION_STATUS;
 			msr->write = 1;
 			msr->write_val = 1;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 
 		case 38:
 			msr->idx = HV_X64_MSR_CRASH_P0;
 			msr->write = 0;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 		case 39:
 			feat->edx |= HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE;
 			msr->idx = HV_X64_MSR_CRASH_P0;
 			msr->write = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 		case 40:
 			msr->idx = HV_X64_MSR_CRASH_P0;
 			msr->write = 1;
 			msr->write_val = 1;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 
 		case 41:
 			msr->idx = HV_X64_MSR_SYNDBG_STATUS;
 			msr->write = 0;
-			msr->available = 0;
+			msr->fault_expected = 1;
 			break;
 		case 42:
 			feat->edx |= HV_FEATURE_DEBUG_MSRS_AVAILABLE;
 			dbg->eax |= HV_X64_SYNDBG_CAP_ALLOW_KERNEL_DEBUGGING;
 			msr->idx = HV_X64_MSR_SYNDBG_STATUS;
 			msr->write = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 		case 43:
 			msr->idx = HV_X64_MSR_SYNDBG_STATUS;
 			msr->write = 1;
 			msr->write_val = 0;
-			msr->available = 1;
+			msr->fault_expected = 0;
 			break;
 
 		case 44:
-- 
2.37.2


  parent reply	other threads:[~2022-09-16 13:52 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-16 13:51 [PATCH v3 0/6] KVM: x86: Hyper-V invariant TSC control feature Vitaly Kuznetsov
2022-09-16 13:52 ` [PATCH v3 1/6] x86/hyperv: Add HV_INVARIANT_TSC_EXPOSED define Vitaly Kuznetsov
2022-09-16 13:52 ` [PATCH v3 2/6] KVM: x86: Introduce CPUID_8000_0007_EDX 'scattered' leaf Vitaly Kuznetsov
2022-09-20 22:52   ` Sean Christopherson
2022-09-21  8:17     ` Vitaly Kuznetsov
2022-09-16 13:52 ` [PATCH v3 3/6] KVM: x86: Hyper-V invariant TSC control Vitaly Kuznetsov
2022-09-20 23:03   ` Sean Christopherson
2022-09-21  8:26     ` Vitaly Kuznetsov
2022-09-21 14:32       ` Sean Christopherson
2022-09-16 13:52 ` Vitaly Kuznetsov [this message]
2022-09-16 13:52 ` [PATCH v3 5/6] KVM: selftests: Convert hyperv_features test to using KVM_X86_CPU_FEATURE() Vitaly Kuznetsov
2022-09-16 13:52 ` [PATCH v3 6/6] KVM: selftests: Test Hyper-V invariant TSC control Vitaly Kuznetsov

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20220916135205.3185973-5-vkuznets@redhat.com \
    --to=vkuznets@redhat.com \
    --cc=jmattson@google.com \
    --cc=kvm@vger.kernel.org \
    --cc=linux-hyperv@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mikelley@microsoft.com \
    --cc=mlevitsk@redhat.com \
    --cc=pbonzini@redhat.com \
    --cc=seanjc@google.com \
    --cc=wanpengli@tencent.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).