Make guest OS ID calculation common to all hyperv tests and similar to
hv_generate_guest_id().
Signed-off-by: Vipin Sharma <vipinsh@xxxxxxxxxx>
---
tools/testing/selftests/kvm/include/x86_64/hyperv.h | 10 ++++++++++
tools/testing/selftests/kvm/x86_64/hyperv_clock.c | 2 +-
tools/testing/selftests/kvm/x86_64/hyperv_features.c | 6 ++----
tools/testing/selftests/kvm/x86_64/hyperv_svm_test.c | 2 +-
4 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/tools/testing/selftests/kvm/include/x86_64/hyperv.h b/tools/testing/selftests/kvm/include/x86_64/hyperv.h
index 075fd29071a6..9d8c325af1d9 100644
--- a/tools/testing/selftests/kvm/include/x86_64/hyperv.h
+++ b/tools/testing/selftests/kvm/include/x86_64/hyperv.h
@@ -9,6 +9,10 @@
#ifndef SELFTEST_KVM_HYPERV_H
#define SELFTEST_KVM_HYPERV_H
+#include <linux/version.h>
+
+#define HV_LINUX_VENDOR_ID 0x8100
+
#define HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS 0x40000000
#define HYPERV_CPUID_INTERFACE 0x40000001
#define HYPERV_CPUID_VERSION 0x40000002
@@ -189,4 +193,10 @@
/* hypercall options */
#define HV_HYPERCALL_FAST_BIT BIT(16)
+static inline uint64_t hv_linux_guest_id(void)
+{
+ return ((uint64_t)HV_LINUX_VENDOR_ID << 48) |
+ ((uint64_t)LINUX_VERSION_CODE << 16);
+}
+
#endif /* !SELFTEST_KVM_HYPERV_H */
diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_clock.c b/tools/testing/selftests/kvm/x86_64/hyperv_clock.c
index d576bc8ce823..f9112c5dc3f7 100644
--- a/tools/testing/selftests/kvm/x86_64/hyperv_clock.c
+++ b/tools/testing/selftests/kvm/x86_64/hyperv_clock.c
@@ -104,7 +104,7 @@ static void guest_main(struct ms_hyperv_tsc_page *tsc_page, vm_paddr_t tsc_page_
/* Set Guest OS id to enable Hyper-V emulation */
GUEST_SYNC(1);
- wrmsr(HV_X64_MSR_GUEST_OS_ID, (u64)0x8100 << 48);
+ wrmsr(HV_X64_MSR_GUEST_OS_ID, hv_linux_guest_id());
GUEST_SYNC(2);
check_tsc_msr_rdtsc();
diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_features.c b/tools/testing/selftests/kvm/x86_64/hyperv_features.c
index 6b443ce456b6..b5a42cf1ad9d 100644
--- a/tools/testing/selftests/kvm/x86_64/hyperv_features.c
+++ b/tools/testing/selftests/kvm/x86_64/hyperv_features.c
@@ -13,8 +13,6 @@
#include "processor.h"
#include "hyperv.h"
-#define LINUX_OS_ID ((u64)0x8100 << 48)
-
static inline uint8_t hypercall(u64 control, vm_vaddr_t input_address,
vm_vaddr_t output_address, uint64_t *hv_status)
{
@@ -71,7 +69,7 @@ static void guest_hcall(vm_vaddr_t pgs_gpa, struct hcall_data *hcall)
GUEST_ASSERT(hcall->control);
- wrmsr(HV_X64_MSR_GUEST_OS_ID, LINUX_OS_ID);
+ wrmsr(HV_X64_MSR_GUEST_OS_ID, hv_linux_guest_id());
wrmsr(HV_X64_MSR_HYPERCALL, pgs_gpa);
if (!(hcall->control & HV_HYPERCALL_FAST_BIT)) {
@@ -169,7 +167,7 @@ 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->write_val = hv_linux_guest_id();
msr->available = 1;
break;
case 3:
diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_svm_test.c b/tools/testing/selftests/kvm/x86_64/hyperv_svm_test.c
index a380ad7bb9b3..2c13a144b04c 100644
--- a/tools/testing/selftests/kvm/x86_64/hyperv_svm_test.c
+++ b/tools/testing/selftests/kvm/x86_64/hyperv_svm_test.c
@@ -69,7 +69,7 @@ static void __attribute__((__flatten__)) guest_code(struct svm_test_data *svm)
GUEST_SYNC(1);
- wrmsr(HV_X64_MSR_GUEST_OS_ID, (u64)0x8100 << 48);
+ wrmsr(HV_X64_MSR_GUEST_OS_ID, hv_linux_guest_id());
GUEST_ASSERT(svm->vmcb_gpa);
/* Prepare for L2 execution. */
--
2.38.1.273.g43a17bfeac-goog
