Commit d563164e authored by Aaron Lewis's avatar Aaron Lewis Committed by Sean Christopherson
Browse files

KVM: selftests: Check that XTILEDATA supports XFD 



Check that XTILEDATA supports XFD. In amx_test, add the requirement that
the guest allows the xfeature, XTILEDATA, to be set in XFD. Otherwise, the
test may fail.

Signed-off-by: default avatarAaron Lewis <aaronlewis@google.com>
Signed-off-by: default avatarMingwei Zhang <mizhang@google.com>
Link: https://lore.kernel.org/r/20230221163655.920289-14-mizhang@google.com


Signed-off-by: default avatarSean Christopherson <seanjc@google.com>
parent d32fb071

tools/testing/selftests/kvm/include/x86_64/processor.h

+1 −0
Original line number Diff line number Diff line
@@ -143,6 +143,7 @@ struct kvm_x86_cpu_feature { 
#define	X86_FEATURE_XTILEDATA		KVM_X86_CPU_FEATURE(0xD, 0, EAX, 18)

#define	X86_FEATURE_XSAVES		KVM_X86_CPU_FEATURE(0xD, 1, EAX, 3)

#define	X86_FEATURE_XFD			KVM_X86_CPU_FEATURE(0xD, 1, EAX, 4)

#define X86_FEATURE_XTILEDATA_XFD	KVM_X86_CPU_FEATURE(0xD, 18, ECX, 2)



/*

 * Extended Leafs, a.k.a. AMD defined

tools/testing/selftests/kvm/x86_64/amx_test.c

+1 −0
Original line number Diff line number Diff line
@@ -258,6 +258,7 @@ int main(int argc, char *argv[]) 
	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_AMX_TILE));

	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_XTILECFG));

	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_XTILEDATA));

	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_XTILEDATA_XFD));



	/* Create VM */

	vm = vm_create_with_one_vcpu(&vcpu, guest_code);