diff mbox series

[v7,26/39] KVM: selftests: Move the function doing Hyper-V hypercall to a common header

Message ID 20220613133922.2875594-27-vkuznets@redhat.com (mailing list archive)
State New, archived
Headers show
Series KVM: x86: hyper-v: Fine-grained TLB flush + L2 TLB flush features | expand

Commit Message

Vitaly Kuznetsov June 13, 2022, 1:39 p.m. UTC 
All Hyper-V specific tests issuing hypercalls need this.

Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
 .../selftests/kvm/include/x86_64/hyperv.h       | 15 +++++++++++++++
 .../selftests/kvm/x86_64/hyperv_features.c      | 17 +----------------
 2 files changed, 16 insertions(+), 16 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/kvm/include/x86_64/hyperv.h b/tools/testing/selftests/kvm/include/x86_64/hyperv.h
index f0a8a93694b2..e0a1b4c2fbbc 100644
--- a/tools/testing/selftests/kvm/include/x86_64/hyperv.h
+++ b/tools/testing/selftests/kvm/include/x86_64/hyperv.h
@@ -185,6 +185,21 @@ 
 /* hypercall options */
 #define HV_HYPERCALL_FAST_BIT		BIT(16)
 
+static inline u64 hyperv_hypercall(u64 control, vm_vaddr_t input_address,
+			   vm_vaddr_t output_address)
+{
+	u64 hv_status;
+
+	asm volatile("mov %3, %%r8\n"
+		     "vmcall"
+		     : "=a" (hv_status),
+		       "+c" (control), "+d" (input_address)
+		     :  "r" (output_address)
+		     : "cc", "memory", "r8", "r9", "r10", "r11");
+
+	return hv_status;
+}
+
 /* Proper HV_X64_MSR_GUEST_OS_ID value */
 #define HYPERV_LINUX_OS_ID ((u64)0x8100 << 48)
 
diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_features.c b/tools/testing/selftests/kvm/x86_64/hyperv_features.c
index 4f061b7a9ed9..b1e997b0b79b 100644
--- a/tools/testing/selftests/kvm/x86_64/hyperv_features.c
+++ b/tools/testing/selftests/kvm/x86_64/hyperv_features.c
@@ -46,21 +46,6 @@  static void do_wrmsr(u32 idx, u64 val)
 static int nr_gp;
 static int nr_ud;
 
-static inline u64 hypercall(u64 control, vm_vaddr_t input_address,
-			    vm_vaddr_t output_address)
-{
-	u64 hv_status;
-
-	asm volatile("mov %3, %%r8\n"
-		     "vmcall"
-		     : "=a" (hv_status),
-		       "+c" (control), "+d" (input_address)
-		     :  "r" (output_address)
-		     : "cc", "memory", "r8", "r9", "r10", "r11");
-
-	return hv_status;
-}
-
 static void guest_gp_handler(struct ex_regs *regs)
 {
 	unsigned char *rip = (unsigned char *)regs->rip;
@@ -136,7 +121,7 @@  static void guest_hcall(vm_vaddr_t pgs_gpa, struct hcall_data *hcall)
 			input = output = 0;
 		}
 
-		res = hypercall(hcall->control, input, output);
+		res = hyperv_hypercall(hcall->control, input, output);
 		if (hcall->ud_expected)
 			GUEST_ASSERT(nr_ud == 1);
 		else