Commit 2fea6cf7 authored by Marc Zyngier's avatar Marc Zyngier
Browse files

Merge branch kvm-arm64/selftest/sysreg-list-fix into kvmarm-master/next 

Selftest updates from Andrew Jones, fixing the sysgreg list
expectations by dealing with multiple configurations, such
as with or without a PMU.

* kvm-arm64/selftest/sysreg-list-fix:
  KVM: arm64: Update MAINTAINERS to include selftests
  KVM: arm64: selftests: get-reg-list: Split base and pmu registers
  KVM: arm64: selftests: get-reg-list: Remove get-reg-list-sve
  KVM: arm64: selftests: get-reg-list: Provide config selection option
  KVM: arm64: selftests: get-reg-list: Prepare to run multiple configs at once
  KVM: arm64: selftests: get-reg-list: Introduce vcpu configs
parents 85c653fc b356a831

MAINTAINERS

+2 −0
Original line number Diff line number Diff line
@@ -9993,6 +9993,8 @@ F: arch/arm64/include/asm/kvm* 
F:	arch/arm64/include/uapi/asm/kvm*

F:	arch/arm64/kvm/

F:	include/kvm/arm_*

F:	tools/testing/selftests/kvm/*/aarch64/

F:	tools/testing/selftests/kvm/aarch64/









KERNEL VIRTUAL MACHINE FOR MIPS (KVM/mips)









M:	Huacai Chen <chenhuacai@kernel.org>
































tools/testing/selftests/kvm/.gitignore



+0
−1






























Original line number
Diff line number
Diff line









# SPDX-License-Identifier: GPL-2.0-only









/aarch64/debug-exceptions









/aarch64/get-reg-list









/aarch64/get-reg-list-sve









/aarch64/vgic_init









/s390x/memop









/s390x/resets
































tools/testing/selftests/kvm/Makefile



+0
−1






























Original line number
Diff line number
Diff line







@@ -80,7 +80,6 @@ TEST_GEN_PROGS_x86_64 += steal_time

















TEST_GEN_PROGS_aarch64 += aarch64/debug-exceptions









TEST_GEN_PROGS_aarch64 += aarch64/get-reg-list









TEST_GEN_PROGS_aarch64 += aarch64/get-reg-list-sve









TEST_GEN_PROGS_aarch64 += aarch64/vgic_init









TEST_GEN_PROGS_aarch64 += demand_paging_test









TEST_GEN_PROGS_aarch64 += dirty_log_test
































tools/testing/selftests/kvm/aarch64/get-reg-list-sve.c
deleted100644 → 0



+0
−3






























Original line number
Diff line number
Diff line









// SPDX-License-Identifier: GPL-2.0









#define REG_LIST_SVE









#include "get-reg-list.c"
























tools/testing/selftests/kvm/aarch64/get-reg-list.c



+321
−118






























Original line number
Diff line number
Diff line







@@ -27,17 +27,37 @@







#include <stdio.h>









#include <stdlib.h>









#include <string.h>









#include <unistd.h>









#include <sys/types.h>









#include <sys/wait.h>









#include "kvm_util.h"









#include "test_util.h"









#include "processor.h"



















#ifdef REG_LIST_SVE









#define reg_list_sve() (true)









#else









#define reg_list_sve() (false)









#endif









static struct kvm_reg_list *reg_list;









static __u64 *blessed_reg, blessed_n;



















#define REG_MASK (KVM_REG_ARCH_MASK | KVM_REG_SIZE_MASK | KVM_REG_ARM_COPROC_MASK)









struct reg_sublist {









	const char *name;









	long capability;









	int feature;









	bool finalize;









	__u64 *regs;









	__u64 regs_n;









	__u64 *rejects_set;









	__u64 rejects_set_n;









};



















struct vcpu_config {









	char *name;









	struct reg_sublist sublists[];









};



















static struct vcpu_config *vcpu_configs[];









static int vcpu_configs_n;



















#define for_each_sublist(c, s)							\









	for ((s) = &(c)->sublists[0]; (s)->regs; ++(s))



















#define for_each_reg(i)								\









	for ((i) = 0; (i) < reg_list->n; ++(i))








@@ -54,12 +74,41 @@







	for_each_reg_filtered(i)						\









		if (!find_reg(blessed_reg, blessed_n, reg_list->reg[i]))



















static const char *config_name(struct vcpu_config *c)









{









	struct reg_sublist *s;









	int len = 0;



















static struct kvm_reg_list *reg_list;









	if (c->name)









		return c->name;



















static __u64 base_regs[], vregs[], sve_regs[], rejects_set[];









static __u64 base_regs_n, vregs_n, sve_regs_n, rejects_set_n;









static __u64 *blessed_reg, blessed_n;









	for_each_sublist(c, s)









		len += strlen(s->name) + 1;



















	c->name = malloc(len);



















	len = 0;









	for_each_sublist(c, s) {









		if (!strcmp(s->name, "base"))









			continue;









		strcat(c->name + len, s->name);









		len += strlen(s->name) + 1;









		c->name[len - 1] = '+';









	}









	c->name[len - 1] = '\0';



















	return c->name;









}



















static bool has_cap(struct vcpu_config *c, long capability)









{









	struct reg_sublist *s;



















	for_each_sublist(c, s)









		if (s->capability == capability)









			return true;









	return false;









}



















static bool filter_reg(__u64 reg)









{








@@ -96,11 +145,13 @@ static const char *str_with_index(const char *template, __u64 index)







	return (const char *)str;









}



















#define REG_MASK (KVM_REG_ARCH_MASK | KVM_REG_SIZE_MASK | KVM_REG_ARM_COPROC_MASK)



















#define CORE_REGS_XX_NR_WORDS	2









#define CORE_SPSR_XX_NR_WORDS	2









#define CORE_FPREGS_XX_NR_WORDS	4



















static const char *core_id_to_str(__u64 id)









static const char *core_id_to_str(struct vcpu_config *c, __u64 id)









{









	__u64 core_off = id & ~REG_MASK, idx;


















@@ -111,7 +162,7 @@ static const char *core_id_to_str(__u64 id)







	case KVM_REG_ARM_CORE_REG(regs.regs[0]) ...









	     KVM_REG_ARM_CORE_REG(regs.regs[30]):









		idx = (core_off - KVM_REG_ARM_CORE_REG(regs.regs[0])) / CORE_REGS_XX_NR_WORDS;









		TEST_ASSERT(idx < 31, "Unexpected regs.regs index: %lld", idx);









		TEST_ASSERT(idx < 31, "%s: Unexpected regs.regs index: %lld", config_name(c), idx);









		return str_with_index("KVM_REG_ARM_CORE_REG(regs.regs[##])", idx);









	case KVM_REG_ARM_CORE_REG(regs.sp):









		return "KVM_REG_ARM_CORE_REG(regs.sp)";








@@ -126,12 +177,12 @@ static const char *core_id_to_str(__u64 id)







	case KVM_REG_ARM_CORE_REG(spsr[0]) ...









	     KVM_REG_ARM_CORE_REG(spsr[KVM_NR_SPSR - 1]):









		idx = (core_off - KVM_REG_ARM_CORE_REG(spsr[0])) / CORE_SPSR_XX_NR_WORDS;









		TEST_ASSERT(idx < KVM_NR_SPSR, "Unexpected spsr index: %lld", idx);









		TEST_ASSERT(idx < KVM_NR_SPSR, "%s: Unexpected spsr index: %lld", config_name(c), idx);









		return str_with_index("KVM_REG_ARM_CORE_REG(spsr[##])", idx);









	case KVM_REG_ARM_CORE_REG(fp_regs.vregs[0]) ...









	     KVM_REG_ARM_CORE_REG(fp_regs.vregs[31]):









		idx = (core_off - KVM_REG_ARM_CORE_REG(fp_regs.vregs[0])) / CORE_FPREGS_XX_NR_WORDS;









		TEST_ASSERT(idx < 32, "Unexpected fp_regs.vregs index: %lld", idx);









		TEST_ASSERT(idx < 32, "%s: Unexpected fp_regs.vregs index: %lld", config_name(c), idx);









		return str_with_index("KVM_REG_ARM_CORE_REG(fp_regs.vregs[##])", idx);









	case KVM_REG_ARM_CORE_REG(fp_regs.fpsr):









		return "KVM_REG_ARM_CORE_REG(fp_regs.fpsr)";








@@ -139,11 +190,11 @@ static const char *core_id_to_str(__u64 id)







		return "KVM_REG_ARM_CORE_REG(fp_regs.fpcr)";









	}



















	TEST_FAIL("Unknown core reg id: 0x%llx", id);









	TEST_FAIL("%s: Unknown core reg id: 0x%llx", config_name(c), id);









	return NULL;









}



















static const char *sve_id_to_str(__u64 id)









static const char *sve_id_to_str(struct vcpu_config *c, __u64 id)









{









	__u64 sve_off, n, i;


















@@ -153,37 +204,37 @@ static const char *sve_id_to_str(__u64 id)







	sve_off = id & ~(REG_MASK | ((1ULL << 5) - 1));









	i = id & (KVM_ARM64_SVE_MAX_SLICES - 1);



















	TEST_ASSERT(i == 0, "Currently we don't expect slice > 0, reg id 0x%llx", id);









	TEST_ASSERT(i == 0, "%s: Currently we don't expect slice > 0, reg id 0x%llx", config_name(c), id);



















	switch (sve_off) {









	case KVM_REG_ARM64_SVE_ZREG_BASE ...









	     KVM_REG_ARM64_SVE_ZREG_BASE + (1ULL << 5) * KVM_ARM64_SVE_NUM_ZREGS - 1:









		n = (id >> 5) & (KVM_ARM64_SVE_NUM_ZREGS - 1);









		TEST_ASSERT(id == KVM_REG_ARM64_SVE_ZREG(n, 0),









			    "Unexpected bits set in SVE ZREG id: 0x%llx", id);









			    "%s: Unexpected bits set in SVE ZREG id: 0x%llx", config_name(c), id);









		return str_with_index("KVM_REG_ARM64_SVE_ZREG(##, 0)", n);









	case KVM_REG_ARM64_SVE_PREG_BASE ...









	     KVM_REG_ARM64_SVE_PREG_BASE + (1ULL << 5) * KVM_ARM64_SVE_NUM_PREGS - 1:









		n = (id >> 5) & (KVM_ARM64_SVE_NUM_PREGS - 1);









		TEST_ASSERT(id == KVM_REG_ARM64_SVE_PREG(n, 0),









			    "Unexpected bits set in SVE PREG id: 0x%llx", id);









			    "%s: Unexpected bits set in SVE PREG id: 0x%llx", config_name(c), id);









		return str_with_index("KVM_REG_ARM64_SVE_PREG(##, 0)", n);









	case KVM_REG_ARM64_SVE_FFR_BASE:









		TEST_ASSERT(id == KVM_REG_ARM64_SVE_FFR(0),









			    "Unexpected bits set in SVE FFR id: 0x%llx", id);









			    "%s: Unexpected bits set in SVE FFR id: 0x%llx", config_name(c), id);









		return "KVM_REG_ARM64_SVE_FFR(0)";









	}



















	return NULL;









}



















static void print_reg(__u64 id)









static void print_reg(struct vcpu_config *c, __u64 id)









{









	unsigned op0, op1, crn, crm, op2;









	const char *reg_size = NULL;



















	TEST_ASSERT((id & KVM_REG_ARCH_MASK) == KVM_REG_ARM64,









		    "KVM_REG_ARM64 missing in reg id: 0x%llx", id);









		    "%s: KVM_REG_ARM64 missing in reg id: 0x%llx", config_name(c), id);



















	switch (id & KVM_REG_SIZE_MASK) {









	case KVM_REG_SIZE_U8:








@@ -214,17 +265,17 @@ static void print_reg(__u64 id)







		reg_size = "KVM_REG_SIZE_U2048";









		break;









	default:









		TEST_FAIL("Unexpected reg size: 0x%llx in reg id: 0x%llx",









			  (id & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT, id);









		TEST_FAIL("%s: Unexpected reg size: 0x%llx in reg id: 0x%llx",









			  config_name(c), (id & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT, id);









	}



















	switch (id & KVM_REG_ARM_COPROC_MASK) {









	case KVM_REG_ARM_CORE:









		printf("\tKVM_REG_ARM64 | %s | KVM_REG_ARM_CORE | %s,\n", reg_size, core_id_to_str(id));









		printf("\tKVM_REG_ARM64 | %s | KVM_REG_ARM_CORE | %s,\n", reg_size, core_id_to_str(c, id));









		break;









	case KVM_REG_ARM_DEMUX:









		TEST_ASSERT(!(id & ~(REG_MASK | KVM_REG_ARM_DEMUX_ID_MASK | KVM_REG_ARM_DEMUX_VAL_MASK)),









			    "Unexpected bits set in DEMUX reg id: 0x%llx", id);









			    "%s: Unexpected bits set in DEMUX reg id: 0x%llx", config_name(c), id);









		printf("\tKVM_REG_ARM64 | %s | KVM_REG_ARM_DEMUX | KVM_REG_ARM_DEMUX_ID_CCSIDR | %lld,\n",









		       reg_size, id & KVM_REG_ARM_DEMUX_VAL_MASK);









		break;








@@ -235,23 +286,23 @@ static void print_reg(__u64 id)







		crm = (id & KVM_REG_ARM64_SYSREG_CRM_MASK) >> KVM_REG_ARM64_SYSREG_CRM_SHIFT;









		op2 = (id & KVM_REG_ARM64_SYSREG_OP2_MASK) >> KVM_REG_ARM64_SYSREG_OP2_SHIFT;









		TEST_ASSERT(id == ARM64_SYS_REG(op0, op1, crn, crm, op2),









			    "Unexpected bits set in SYSREG reg id: 0x%llx", id);









			    "%s: Unexpected bits set in SYSREG reg id: 0x%llx", config_name(c), id);









		printf("\tARM64_SYS_REG(%d, %d, %d, %d, %d),\n", op0, op1, crn, crm, op2);









		break;









	case KVM_REG_ARM_FW:









		TEST_ASSERT(id == KVM_REG_ARM_FW_REG(id & 0xffff),









			    "Unexpected bits set in FW reg id: 0x%llx", id);









			    "%s: Unexpected bits set in FW reg id: 0x%llx", config_name(c), id);









		printf("\tKVM_REG_ARM_FW_REG(%lld),\n", id & 0xffff);









		break;









	case KVM_REG_ARM64_SVE:









		if (reg_list_sve())









			printf("\t%s,\n", sve_id_to_str(id));









		if (has_cap(c, KVM_CAP_ARM_SVE))









			printf("\t%s,\n", sve_id_to_str(c, id));









		else









			TEST_FAIL("KVM_REG_ARM64_SVE is an unexpected coproc type in reg id: 0x%llx", id);









			TEST_FAIL("%s: KVM_REG_ARM64_SVE is an unexpected coproc type in reg id: 0x%llx", config_name(c), id);









		break;









	default:









		TEST_FAIL("Unexpected coproc type: 0x%llx in reg id: 0x%llx",









			  (id & KVM_REG_ARM_COPROC_MASK) >> KVM_REG_ARM_COPROC_SHIFT, id);









		TEST_FAIL("%s: Unexpected coproc type: 0x%llx in reg id: 0x%llx",









			  config_name(c), (id & KVM_REG_ARM_COPROC_MASK) >> KVM_REG_ARM_COPROC_SHIFT, id);









	}









}


















@@ -312,56 +363,58 @@ static void core_reg_fixup(void)







	reg_list = tmp;









}



















static void prepare_vcpu_init(struct kvm_vcpu_init *init)









static void prepare_vcpu_init(struct vcpu_config *c, struct kvm_vcpu_init *init)









{









	if (reg_list_sve())









		init->features[0] |= 1 << KVM_ARM_VCPU_SVE;









	struct reg_sublist *s;



















	for_each_sublist(c, s)









		if (s->capability)









			init->features[s->feature / 32] |= 1 << (s->feature % 32);









}



















static void finalize_vcpu(struct kvm_vm *vm, uint32_t vcpuid)









static void finalize_vcpu(struct kvm_vm *vm, uint32_t vcpuid, struct vcpu_config *c)









{









	struct reg_sublist *s;









	int feature;



















	if (reg_list_sve()) {









		feature = KVM_ARM_VCPU_SVE;









	for_each_sublist(c, s) {









		if (s->finalize) {









			feature = s->feature;









			vcpu_ioctl(vm, vcpuid, KVM_ARM_VCPU_FINALIZE, &feature);









		}









	}









}



















static void check_supported(void)









static void check_supported(struct vcpu_config *c)









{









	if (reg_list_sve() && !kvm_check_cap(KVM_CAP_ARM_SVE)) {









		fprintf(stderr, "SVE not available, skipping tests\n");









	struct reg_sublist *s;



















	for_each_sublist(c, s) {









		if (s->capability && !kvm_check_cap(s->capability)) {









			fprintf(stderr, "%s: %s not available, skipping tests\n", config_name(c), s->name);









			exit(KSFT_SKIP);









		}









	}









}



















int main(int ac, char **av)









static bool print_list;









static bool print_filtered;









static bool fixup_core_regs;



















static void run_test(struct vcpu_config *c)









{









	struct kvm_vcpu_init init = { .target = -1, };









	int new_regs = 0, missing_regs = 0, i;









	int new_regs = 0, missing_regs = 0, i, n;









	int failed_get = 0, failed_set = 0, failed_reject = 0;









	bool print_list = false, print_filtered = false, fixup_core_regs = false;









	struct kvm_vm *vm;









	__u64 *vec_regs;









	struct reg_sublist *s;



















	check_supported();



















	for (i = 1; i < ac; ++i) {









		if (strcmp(av[i], "--core-reg-fixup") == 0)









			fixup_core_regs = true;









		else if (strcmp(av[i], "--list") == 0)









			print_list = true;









		else if (strcmp(av[i], "--list-filtered") == 0)









			print_filtered = true;









		else









			TEST_FAIL("Unknown option: %s\n", av[i]);









	}









	check_supported(c);



















	vm = vm_create(VM_MODE_DEFAULT, DEFAULT_GUEST_PHY_PAGES, O_RDWR);









	prepare_vcpu_init(&init);









	prepare_vcpu_init(c, &init);









	aarch64_vcpu_add_default(vm, 0, &init, NULL);









	finalize_vcpu(vm, 0);









	finalize_vcpu(vm, 0, c);



















	reg_list = vcpu_get_reg_list(vm, 0);


















@@ -374,10 +427,10 @@ int main(int ac, char **av)







			__u64 id = reg_list->reg[i];









			if ((print_list && !filter_reg(id)) ||









			    (print_filtered && filter_reg(id)))









				print_reg(id);









				print_reg(c, id);









		}









		putchar('\n');









		return 0;









		return;









	}



















	/*








@@ -396,50 +449,52 @@ int main(int ac, char **av)







			.id = reg_list->reg[i],









			.addr = (__u64)&addr,









		};









		bool reject_reg = false;









		int ret;



















		ret = _vcpu_ioctl(vm, 0, KVM_GET_ONE_REG, &reg);









		if (ret) {









			puts("Failed to get ");









			print_reg(reg.id);









			printf("%s: Failed to get ", config_name(c));









			print_reg(c, reg.id);









			putchar('\n');









			++failed_get;









		}



















		/* rejects_set registers are rejected after KVM_ARM_VCPU_FINALIZE */









		if (find_reg(rejects_set, rejects_set_n, reg.id)) {









		for_each_sublist(c, s) {









			if (s->rejects_set && find_reg(s->rejects_set, s->rejects_set_n, reg.id)) {









				reject_reg = true;









				ret = _vcpu_ioctl(vm, 0, KVM_SET_ONE_REG, &reg);









				if (ret != -1 || errno != EPERM) {









				printf("Failed to reject (ret=%d, errno=%d) ", ret, errno);









				print_reg(reg.id);









					printf("%s: Failed to reject (ret=%d, errno=%d) ", config_name(c), ret, errno);









					print_reg(c, reg.id);









					putchar('\n');









					++failed_reject;









				}









			continue;









				break;









			}









		}



















		if (!reject_reg) {









			ret = _vcpu_ioctl(vm, 0, KVM_SET_ONE_REG, &reg);









			if (ret) {









			puts("Failed to set ");









			print_reg(reg.id);









				printf("%s: Failed to set ", config_name(c));









				print_reg(c, reg.id);









				putchar('\n');









				++failed_set;









			}









		}



















	if (reg_list_sve()) {









		blessed_n = base_regs_n + sve_regs_n;









		vec_regs = sve_regs;









	} else {









		blessed_n = base_regs_n + vregs_n;









		vec_regs = vregs;









	}



















	for_each_sublist(c, s)









		blessed_n += s->regs_n;









	blessed_reg = calloc(blessed_n, sizeof(__u64));









	for (i = 0; i < base_regs_n; ++i)









		blessed_reg[i] = base_regs[i];









	for (i = 0; i < blessed_n - base_regs_n; ++i)









		blessed_reg[base_regs_n + i] = vec_regs[i];



















	n = 0;









	for_each_sublist(c, s) {









		for (i = 0; i < s->regs_n; ++i)









			blessed_reg[n++] = s->regs[i];









	}



















	for_each_new_reg(i)









		++new_regs;








@@ -448,40 +503,141 @@ int main(int ac, char **av)







		++missing_regs;



















	if (new_regs || missing_regs) {









		printf("Number blessed registers: %5lld\n", blessed_n);









		printf("Number registers:         %5lld\n", reg_list->n);









		printf("%s: Number blessed registers: %5lld\n", config_name(c), blessed_n);









		printf("%s: Number registers:         %5lld\n", config_name(c), reg_list->n);









	}



















	if (new_regs) {









		printf("\nThere are %d new registers.\n"









		printf("\n%s: There are %d new registers.\n"









		       "Consider adding them to the blessed reg "









		       "list with the following lines:\n\n", new_regs);









		       "list with the following lines:\n\n", config_name(c), new_regs);









		for_each_new_reg(i)









			print_reg(reg_list->reg[i]);









			print_reg(c, reg_list->reg[i]);









		putchar('\n');









	}



















	if (missing_regs) {









		printf("\nThere are %d missing registers.\n"









		       "The following lines are missing registers:\n\n", missing_regs);









		printf("\n%s: There are %d missing registers.\n"









		       "The following lines are missing registers:\n\n", config_name(c), missing_regs);









		for_each_missing_reg(i)









			print_reg(blessed_reg[i]);









			print_reg(c, blessed_reg[i]);









		putchar('\n');









	}



















	TEST_ASSERT(!missing_regs && !failed_get && !failed_set && !failed_reject,









		    "There are %d missing registers; "









		    "%s: There are %d missing registers; "









		    "%d registers failed get; %d registers failed set; %d registers failed reject",









		    missing_regs, failed_get, failed_set, failed_reject);









		    config_name(c), missing_regs, failed_get, failed_set, failed_reject);



















	pr_info("%s: PASS\n", config_name(c));









	blessed_n = 0;









	free(blessed_reg);









	free(reg_list);









	kvm_vm_free(vm);









}



















static void help(void)









{









	struct vcpu_config *c;









	int i;



















	printf(









	"\n"









	"usage: get-reg-list [--config=<selection>] [--list] [--list-filtered] [--core-reg-fixup]\n\n"









	" --config=<selection>        Used to select a specific vcpu configuration for the test/listing\n"









	"                             '<selection>' may be\n");



















	for (i = 0; i < vcpu_configs_n; ++i) {









		c = vcpu_configs[i];









		printf(









	"                               '%s'\n", config_name(c));









	}



















	printf(









	"\n"









	" --list                      Print the register list rather than test it (requires --config)\n"









	" --list-filtered             Print registers that would normally be filtered out (requires --config)\n"









	" --core-reg-fixup            Needed when running on old kernels with broken core reg listings\n"









	"\n"









	);









}



















static struct vcpu_config *parse_config(const char *config)









{









	struct vcpu_config *c;









	int i;



















	if (config[8] != '=')









		help(), exit(1);



















	for (i = 0; i < vcpu_configs_n; ++i) {









		c = vcpu_configs[i];









		if (strcmp(config_name(c), &config[9]) == 0)









			break;









	}



















	return 0;









	if (i == vcpu_configs_n)









		help(), exit(1);



















	return c;









}



















int main(int ac, char **av)









{









	struct vcpu_config *c, *sel = NULL;









	int i, ret = 0;









	pid_t pid;



















	for (i = 1; i < ac; ++i) {









		if (strcmp(av[i], "--core-reg-fixup") == 0)









			fixup_core_regs = true;









		else if (strncmp(av[i], "--config", 8) == 0)









			sel = parse_config(av[i]);









		else if (strcmp(av[i], "--list") == 0)









			print_list = true;









		else if (strcmp(av[i], "--list-filtered") == 0)









			print_filtered = true;









		else if (strcmp(av[i], "--help") == 0 || strcmp(av[1], "-h") == 0)









			help(), exit(0);









		else









			help(), exit(1);









	}



















	if (print_list || print_filtered) {









		/*









		 * We only want to print the register list of a single config.









		 */









		if (!sel)









			help(), exit(1);









	}



















	for (i = 0; i < vcpu_configs_n; ++i) {









		c = vcpu_configs[i];









		if (sel && c != sel)









			continue;



















		pid = fork();



















		if (!pid) {









			run_test(c);









			exit(0);









		} else {









			int wstatus;









			pid_t wpid = wait(&wstatus);









			TEST_ASSERT(wpid == pid && WIFEXITED(wstatus), "wait: Unexpected return");









			if (WEXITSTATUS(wstatus) && WEXITSTATUS(wstatus) != KSFT_SKIP)









				ret = KSFT_FAIL;









		}









	}



















	return ret;









}



















/*









 * The current blessed list was primed with the output of kernel version









 * v4.15 with --core-reg-fixup and then later updated with new registers.









 *









 * The blessed list is up to date with kernel version v5.10-rc5









 * The blessed list is up to date with kernel version v5.13-rc3









 */









static __u64 base_regs[] = {









	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[0]),








@@ -673,8 +829,6 @@ static __u64 base_regs[] = {







	ARM64_SYS_REG(3, 0, 5, 2, 0),	/* ESR_EL1 */









	ARM64_SYS_REG(3, 0, 6, 0, 0),	/* FAR_EL1 */









	ARM64_SYS_REG(3, 0, 7, 4, 0),	/* PAR_EL1 */









	ARM64_SYS_REG(3, 0, 9, 14, 1),	/* PMINTENSET_EL1 */









	ARM64_SYS_REG(3, 0, 9, 14, 2),	/* PMINTENCLR_EL1 */









	ARM64_SYS_REG(3, 0, 10, 2, 0),	/* MAIR_EL1 */









	ARM64_SYS_REG(3, 0, 10, 3, 0),	/* AMAIR_EL1 */









	ARM64_SYS_REG(3, 0, 12, 0, 0),	/* VBAR_EL1 */








@@ -683,6 +837,16 @@ static __u64 base_regs[] = {







	ARM64_SYS_REG(3, 0, 13, 0, 4),	/* TPIDR_EL1 */









	ARM64_SYS_REG(3, 0, 14, 1, 0),	/* CNTKCTL_EL1 */









	ARM64_SYS_REG(3, 2, 0, 0, 0),	/* CSSELR_EL1 */









	ARM64_SYS_REG(3, 3, 13, 0, 2),	/* TPIDR_EL0 */









	ARM64_SYS_REG(3, 3, 13, 0, 3),	/* TPIDRRO_EL0 */









	ARM64_SYS_REG(3, 4, 3, 0, 0),	/* DACR32_EL2 */









	ARM64_SYS_REG(3, 4, 5, 0, 1),	/* IFSR32_EL2 */









	ARM64_SYS_REG(3, 4, 5, 3, 0),	/* FPEXC32_EL2 */









};



















static __u64 pmu_regs[] = {









	ARM64_SYS_REG(3, 0, 9, 14, 1),	/* PMINTENSET_EL1 */









	ARM64_SYS_REG(3, 0, 9, 14, 2),	/* PMINTENCLR_EL1 */









	ARM64_SYS_REG(3, 3, 9, 12, 0),	/* PMCR_EL0 */









	ARM64_SYS_REG(3, 3, 9, 12, 1),	/* PMCNTENSET_EL0 */









	ARM64_SYS_REG(3, 3, 9, 12, 2),	/* PMCNTENCLR_EL0 */








@@ -692,8 +856,6 @@ static __u64 base_regs[] = {







	ARM64_SYS_REG(3, 3, 9, 13, 0),	/* PMCCNTR_EL0 */









	ARM64_SYS_REG(3, 3, 9, 14, 0),	/* PMUSERENR_EL0 */









	ARM64_SYS_REG(3, 3, 9, 14, 3),	/* PMOVSSET_EL0 */









	ARM64_SYS_REG(3, 3, 13, 0, 2),	/* TPIDR_EL0 */









	ARM64_SYS_REG(3, 3, 13, 0, 3),	/* TPIDRRO_EL0 */









	ARM64_SYS_REG(3, 3, 14, 8, 0),









	ARM64_SYS_REG(3, 3, 14, 8, 1),









	ARM64_SYS_REG(3, 3, 14, 8, 2),








@@ -757,11 +919,7 @@ static __u64 base_regs[] = {







	ARM64_SYS_REG(3, 3, 14, 15, 5),









	ARM64_SYS_REG(3, 3, 14, 15, 6),









	ARM64_SYS_REG(3, 3, 14, 15, 7),	/* PMCCFILTR_EL0 */









	ARM64_SYS_REG(3, 4, 3, 0, 0),	/* DACR32_EL2 */









	ARM64_SYS_REG(3, 4, 5, 0, 1),	/* IFSR32_EL2 */









	ARM64_SYS_REG(3, 4, 5, 3, 0),	/* FPEXC32_EL2 */









};









static __u64 base_regs_n = ARRAY_SIZE(base_regs);



















static __u64 vregs[] = {









	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[0]),








@@ -797,7 +955,6 @@ static __u64 vregs[] = {







	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[30]),









	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[31]),









};









static __u64 vregs_n = ARRAY_SIZE(vregs);



















static __u64 sve_regs[] = {









	KVM_REG_ARM64_SVE_VLS,








@@ -852,11 +1009,57 @@ static __u64 sve_regs[] = {







	KVM_REG_ARM64_SVE_FFR(0),









	ARM64_SYS_REG(3, 0, 1, 2, 0),   /* ZCR_EL1 */









};









static __u64 sve_regs_n = ARRAY_SIZE(sve_regs);



















static __u64 rejects_set[] = {









#ifdef REG_LIST_SVE









static __u64 sve_rejects_set[] = {









	KVM_REG_ARM64_SVE_VLS,









#endif









};









static __u64 rejects_set_n = ARRAY_SIZE(rejects_set);


















#define BASE_SUBLIST \









	{ "base", .regs = base_regs, .regs_n = ARRAY_SIZE(base_regs), }









#define VREGS_SUBLIST \









	{ "vregs", .regs = vregs, .regs_n = ARRAY_SIZE(vregs), }









#define PMU_SUBLIST \









	{ "pmu", .regs = pmu_regs, .regs_n = ARRAY_SIZE(pmu_regs), }









#define SVE_SUBLIST \









	{ "sve", .capability = KVM_CAP_ARM_SVE, .feature = KVM_ARM_VCPU_SVE, .finalize = true, \









	  .regs = sve_regs, .regs_n = ARRAY_SIZE(sve_regs), \









	  .rejects_set = sve_rejects_set, .rejects_set_n = ARRAY_SIZE(sve_rejects_set), }



















static struct vcpu_config vregs_config = {









	.sublists = {









	BASE_SUBLIST,









	VREGS_SUBLIST,









	{0},









	},









};









static struct vcpu_config vregs_pmu_config = {









	.sublists = {









	BASE_SUBLIST,









	VREGS_SUBLIST,









	PMU_SUBLIST,









	{0},









	},









};









static struct vcpu_config sve_config = {









	.sublists = {









	BASE_SUBLIST,









	SVE_SUBLIST,









	{0},









	},









};









static struct vcpu_config sve_pmu_config = {









	.sublists = {









	BASE_SUBLIST,









	SVE_SUBLIST,









	PMU_SUBLIST,









	{0},









	},









};



















static struct vcpu_config *vcpu_configs[] = {









	&vregs_config,









	&vregs_pmu_config,









	&sve_config,









	&sve_pmu_config,









};









static int vcpu_configs_n = ARRAY_SIZE(vcpu_configs);