From 39839c1a68ce28ea38ca3f789c9981b0d7310def Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Tue, 15 Feb 2022 17:11:25 -0800 Subject: [PATCH] KVM: selftests: Convert amx_test away from VCPU_ID Convert amx_test to use vm_create_with_one_vcpu() and pass around a 'struct kvm_vcpu' object instead of using a global VCPU_ID.o Opportunistically use vcpu_run() instead of _vcpu_run(), the test expects KVM_RUN to succeed. Signed-off-by: Sean Christopherson Signed-off-by: Paolo Bonzini --- tools/testing/selftests/kvm/x86_64/amx_test.c | 33 +++++++++++++-------------- 1 file changed, 16 insertions(+), 17 deletions(-) diff --git a/tools/testing/selftests/kvm/x86_64/amx_test.c b/tools/testing/selftests/kvm/x86_64/amx_test.c index 2f01247..7755fe8f 100644 --- a/tools/testing/selftests/kvm/x86_64/amx_test.c +++ b/tools/testing/selftests/kvm/x86_64/amx_test.c @@ -25,7 +25,6 @@ # error This test is 64-bit only #endif -#define VCPU_ID 0 #define X86_FEATURE_XSAVE (1 << 26) #define X86_FEATURE_OSXSAVE (1 << 27) @@ -319,6 +318,7 @@ int main(int argc, char *argv[]) struct kvm_cpuid_entry2 *entry; struct kvm_regs regs1, regs2; bool amx_supported = false; + struct kvm_vcpu *vcpu; struct kvm_vm *vm; struct kvm_run *run; struct kvm_x86_state *state; @@ -331,7 +331,7 @@ int main(int argc, char *argv[]) vm_xsave_req_perm(XSTATE_XTILE_DATA_BIT); /* Create VM */ - vm = vm_create_default(VCPU_ID, 0, guest_code); + vm = vm_create_with_one_vcpu(&vcpu, guest_code); entry = kvm_get_supported_cpuid_entry(1); if (!(entry->ecx & X86_FEATURE_XSAVE)) { @@ -350,12 +350,12 @@ int main(int argc, char *argv[]) xsave_restore_size = entry->ecx; } - run = vcpu_state(vm, VCPU_ID); - vcpu_regs_get(vm, VCPU_ID, ®s1); + run = vcpu->run; + vcpu_regs_get(vm, vcpu->id, ®s1); /* Register #NM handler */ vm_init_descriptor_tables(vm); - vcpu_init_descriptor_tables(vm, VCPU_ID); + vcpu_init_descriptor_tables(vm, vcpu->id); vm_install_exception_handler(vm, NM_VECTOR, guest_nm_handler); /* amx cfg for guest_code */ @@ -369,16 +369,16 @@ int main(int argc, char *argv[]) /* xsave data for guest_code */ xsavedata = vm_vaddr_alloc_pages(vm, 3); memset(addr_gva2hva(vm, xsavedata), 0, 3 * getpagesize()); - vcpu_args_set(vm, VCPU_ID, 3, amx_cfg, tiledata, xsavedata); + vcpu_args_set(vm, vcpu->id, 3, amx_cfg, tiledata, xsavedata); for (stage = 1; ; stage++) { - _vcpu_run(vm, VCPU_ID); + vcpu_run(vm, vcpu->id); TEST_ASSERT(run->exit_reason == KVM_EXIT_IO, "Stage %d: unexpected exit reason: %u (%s),\n", stage, run->exit_reason, exit_reason_str(run->exit_reason)); - switch (get_ucall(vm, VCPU_ID, &uc)) { + switch (get_ucall(vm, vcpu->id, &uc)) { case UCALL_ABORT: TEST_FAIL("%s at %s:%ld", (const char *)uc.args[0], __FILE__, uc.args[1]); @@ -403,7 +403,7 @@ int main(int argc, char *argv[]) * size subtract 8K amx size. */ amx_offset = xsave_restore_size - NUM_TILES*TILE_SIZE; - state = vcpu_save_state(vm, VCPU_ID); + state = vcpu_save_state(vm, vcpu->id); void *amx_start = (void *)state->xsave + amx_offset; void *tiles_data = (void *)addr_gva2hva(vm, tiledata); /* Only check TMM0 register, 1 tile */ @@ -424,22 +424,21 @@ int main(int argc, char *argv[]) TEST_FAIL("Unknown ucall %lu", uc.cmd); } - state = vcpu_save_state(vm, VCPU_ID); + state = vcpu_save_state(vm, vcpu->id); memset(®s1, 0, sizeof(regs1)); - vcpu_regs_get(vm, VCPU_ID, ®s1); + vcpu_regs_get(vm, vcpu->id, ®s1); kvm_vm_release(vm); /* Restore state in a new VM. */ - kvm_vm_restart(vm); - vm_vcpu_add(vm, VCPU_ID); - vcpu_set_cpuid(vm, VCPU_ID, kvm_get_supported_cpuid()); - vcpu_load_state(vm, VCPU_ID, state); - run = vcpu_state(vm, VCPU_ID); + vcpu = vm_recreate_with_one_vcpu(vm); + vcpu_set_cpuid(vm, vcpu->id, kvm_get_supported_cpuid()); + vcpu_load_state(vm, vcpu->id, state); + run = vcpu->run; kvm_x86_state_cleanup(state); memset(®s2, 0, sizeof(regs2)); - vcpu_regs_get(vm, VCPU_ID, ®s2); + vcpu_regs_get(vm, vcpu->id, ®s2); TEST_ASSERT(!memcmp(®s1, ®s2, sizeof(regs2)), "Unexpected register values after vcpu_load_state; rdi: %lx rsi: %lx", (ulong) regs2.rdi, (ulong) regs2.rsi); -- 2.7.4