arch/x86/include/asm/fpu/api.h

134

extern void fpstate_clear_xstate_component(struct fpstate *fpstate, unsigned int xfeature);

arch/x86/kernel/fpu/xstate.c

1151

unsigned int zerofrom, i, xfeature;

arch/x86/kernel/fpu/xstate.c

1223

xfeature = xfeature_uncompact_order[i];

arch/x86/kernel/fpu/xstate.c

1228

if (zerofrom < xstate_offsets[xfeature])

arch/x86/kernel/fpu/xstate.c

1229

membuf_zero(&to, xstate_offsets[xfeature] - zerofrom);

arch/x86/kernel/fpu/xstate.c

1231

if (xfeature == XFEATURE_PKRU) {

arch/x86/kernel/fpu/xstate.c

1241

__raw_xsave_addr(xsave, xfeature),

arch/x86/kernel/fpu/xstate.c

1242

xstate_sizes[xfeature]);

arch/x86/kernel/fpu/xstate.c

1248

zerofrom = xstate_offsets[xfeature] + xstate_sizes[xfeature];

arch/x86/kernel/fpu/xstate.c

1478

void fpstate_clear_xstate_component(struct fpstate *fpstate, unsigned int xfeature)

arch/x86/kernel/fpu/xstate.c

1480

void *addr = get_xsave_addr(&fpstate->regs.xsave, xfeature);

arch/x86/kernel/fpu/xstate.c

1483

memset(addr, 0, xstate_sizes[xfeature]);

arch/x86/kernel/fpu/xstate.c

173

static unsigned int xfeature_get_offset(u64 xcomp_bv, int xfeature)

arch/x86/kernel/fpu/xstate.c

182

xfeature <= XFEATURE_SSE)

arch/x86/kernel/fpu/xstate.c

183

return xstate_offsets[xfeature];

arch/x86/kernel/fpu/xstate.c

194

if (i == xfeature)

arch/x86/kernel/fpu/xstate.c

238

static bool xfeature_enabled(enum xfeature xfeature)

arch/x86/kernel/fpu/xstate.c

240

return fpu_kernel_cfg.max_features & BIT_ULL(xfeature);

arch/x86/kernel/fpu/xstate.c

256

u32 eax, ebx, ecx, edx, xfeature, i = 0;

arch/x86/kernel/fpu/xstate.c

270

for_each_extended_xfeature(xfeature, fpu_kernel_cfg.max_features) {

arch/x86/kernel/fpu/xstate.c

271

cpuid_count(CPUID_LEAF_XSTATE, xfeature, &eax, &ebx, &ecx, &edx);

arch/x86/kernel/fpu/xstate.c

273

xstate_sizes[xfeature] = eax;

arch/x86/kernel/fpu/xstate.c

274

xstate_flags[xfeature] = ecx;

arch/x86/kernel/fpu/xstate.c

280

if (xfeature_is_supervisor(xfeature))

arch/x86/kernel/fpu/xstate.c

283

xstate_offsets[xfeature] = ebx;

arch/x86/kernel/fpu/xstate.c

286

xfeature_uncompact_order[i++] = xfeature;

tools/testing/selftests/kvm/include/x86/processor.h

1473

void __vm_xsave_require_permission(u64 xfeature, const char *name);

tools/testing/selftests/kvm/include/x86/processor.h

1475

#define vm_xsave_require_permission(xfeature) \

tools/testing/selftests/kvm/include/x86/processor.h

1476

__vm_xsave_require_permission(xfeature, #xfeature)

tools/testing/selftests/kvm/lib/x86/processor.c

959

void __vm_xsave_require_permission(u64 xfeature, const char *name)

tools/testing/selftests/kvm/lib/x86/processor.c

973

TEST_ASSERT(is_power_of_2(xfeature),

tools/testing/selftests/kvm/lib/x86/processor.c

985

__TEST_REQUIRE(bitmask & xfeature,

tools/testing/selftests/kvm/lib/x86/processor.c

988

TEST_REQUIRE(!syscall(SYS_arch_prctl, ARCH_REQ_XCOMP_GUEST_PERM, ilog2(xfeature)));

tools/testing/selftests/kvm/lib/x86/processor.c

992

TEST_ASSERT(bitmask & xfeature,

tools/testing/selftests/kvm/lib/x86/processor.c

994

name, xfeature, bitmask);