1 files changed, 0 insertions, 250 deletions
diff --git a/tools/testing/selftests/kvm/aarch64/debug-exceptions.c b/tools/testing/selftests/kvm/aarch64/debug-exceptions.c
deleted file mode 100644
index ea189d83abf7..000000000000
--- a/tools/testing/selftests/kvm/aarch64/debug-exceptions.c
+++ /dev/null
@@ -1,250 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <test_util.h>
-#include <kvm_util.h>
-#include <processor.h>
-
-#define VCPU_ID 0
-
-#define MDSCR_KDE	(1 << 13)
-#define MDSCR_MDE	(1 << 15)
-#define MDSCR_SS	(1 << 0)
-
-#define DBGBCR_LEN8	(0xff << 5)
-#define DBGBCR_EXEC	(0x0 << 3)
-#define DBGBCR_EL1	(0x1 << 1)
-#define DBGBCR_E	(0x1 << 0)
-
-#define DBGWCR_LEN8	(0xff << 5)
-#define DBGWCR_RD	(0x1 << 3)
-#define DBGWCR_WR	(0x2 << 3)
-#define DBGWCR_EL1	(0x1 << 1)
-#define DBGWCR_E	(0x1 << 0)
-
-#define SPSR_D		(1 << 9)
-#define SPSR_SS		(1 << 21)
-
-extern unsigned char sw_bp, hw_bp, bp_svc, bp_brk, hw_wp, ss_start;
-static volatile uint64_t sw_bp_addr, hw_bp_addr;
-static volatile uint64_t wp_addr, wp_data_addr;
-static volatile uint64_t svc_addr;
-static volatile uint64_t ss_addr[4], ss_idx;
-#define  PC(v)  ((uint64_t)&(v))
-
-static void reset_debug_state(void)
-{
-	asm volatile("msr daifset, #8");
-
-	write_sysreg(0, osdlr_el1);
-	write_sysreg(0, oslar_el1);
-	isb();
-
-	write_sysreg(0, mdscr_el1);
-	/* This test only uses the first bp and wp slot. */
-	write_sysreg(0, dbgbvr0_el1);
-	write_sysreg(0, dbgbcr0_el1);
-	write_sysreg(0, dbgwcr0_el1);
-	write_sysreg(0, dbgwvr0_el1);
-	isb();
-}
-
-static void install_wp(uint64_t addr)
-{
-	uint32_t wcr;
-	uint32_t mdscr;
-
-	wcr = DBGWCR_LEN8 | DBGWCR_RD | DBGWCR_WR | DBGWCR_EL1 | DBGWCR_E;
-	write_sysreg(wcr, dbgwcr0_el1);
-	write_sysreg(addr, dbgwvr0_el1);
-	isb();
-
-	asm volatile("msr daifclr, #8");
-
-	mdscr = read_sysreg(mdscr_el1) | MDSCR_KDE | MDSCR_MDE;
-	write_sysreg(mdscr, mdscr_el1);
-	isb();
-}
-
-static void install_hw_bp(uint64_t addr)
-{
-	uint32_t bcr;
-	uint32_t mdscr;
-
-	bcr = DBGBCR_LEN8 | DBGBCR_EXEC | DBGBCR_EL1 | DBGBCR_E;
-	write_sysreg(bcr, dbgbcr0_el1);
-	write_sysreg(addr, dbgbvr0_el1);
-	isb();
-
-	asm volatile("msr daifclr, #8");
-
-	mdscr = read_sysreg(mdscr_el1) | MDSCR_KDE | MDSCR_MDE;
-	write_sysreg(mdscr, mdscr_el1);
-	isb();
-}
-
-static void install_ss(void)
-{
-	uint32_t mdscr;
-
-	asm volatile("msr daifclr, #8");
-
-	mdscr = read_sysreg(mdscr_el1) | MDSCR_KDE | MDSCR_SS;
-	write_sysreg(mdscr, mdscr_el1);
-	isb();
-}
-
-static volatile char write_data;
-
-static void guest_code(void)
-{
-	GUEST_SYNC(0);
-
-	/* Software-breakpoint */
-	asm volatile("sw_bp: brk #0");
-	GUEST_ASSERT_EQ(sw_bp_addr, PC(sw_bp));
-
-	GUEST_SYNC(1);
-
-	/* Hardware-breakpoint */
-	reset_debug_state();
-	install_hw_bp(PC(hw_bp));
-	asm volatile("hw_bp: nop");
-	GUEST_ASSERT_EQ(hw_bp_addr, PC(hw_bp));
-
-	GUEST_SYNC(2);
-
-	/* Hardware-breakpoint + svc */
-	reset_debug_state();
-	install_hw_bp(PC(bp_svc));
-	asm volatile("bp_svc: svc #0");
-	GUEST_ASSERT_EQ(hw_bp_addr, PC(bp_svc));
-	GUEST_ASSERT_EQ(svc_addr, PC(bp_svc) + 4);
-
-	GUEST_SYNC(3);
-
-	/* Hardware-breakpoint + software-breakpoint */
-	reset_debug_state();
-	install_hw_bp(PC(bp_brk));
-	asm volatile("bp_brk: brk #0");
-	GUEST_ASSERT_EQ(sw_bp_addr, PC(bp_brk));
-	GUEST_ASSERT_EQ(hw_bp_addr, PC(bp_brk));
-
-	GUEST_SYNC(4);
-
-	/* Watchpoint */
-	reset_debug_state();
-	install_wp(PC(write_data));
-	write_data = 'x';
-	GUEST_ASSERT_EQ(write_data, 'x');
-	GUEST_ASSERT_EQ(wp_data_addr, PC(write_data));
-
-	GUEST_SYNC(5);
-
-	/* Single-step */
-	reset_debug_state();
-	install_ss();
-	ss_idx = 0;
-	asm volatile("ss_start:\n"
-		     "mrs x0, esr_el1\n"
-		     "add x0, x0, #1\n"
-		     "msr daifset, #8\n"
-		     : : : "x0");
-	GUEST_ASSERT_EQ(ss_addr[0], PC(ss_start));
-	GUEST_ASSERT_EQ(ss_addr[1], PC(ss_start) + 4);
-	GUEST_ASSERT_EQ(ss_addr[2], PC(ss_start) + 8);
-
-	GUEST_DONE();
-}
-
-static void guest_sw_bp_handler(struct ex_regs *regs)
-{
-	sw_bp_addr = regs->pc;
-	regs->pc += 4;
-}
-
-static void guest_hw_bp_handler(struct ex_regs *regs)
-{
-	hw_bp_addr = regs->pc;
-	regs->pstate |= SPSR_D;
-}
-
-static void guest_wp_handler(struct ex_regs *regs)
-{
-	wp_data_addr = read_sysreg(far_el1);
-	wp_addr = regs->pc;
-	regs->pstate |= SPSR_D;
-}
-
-static void guest_ss_handler(struct ex_regs *regs)
-{
-	GUEST_ASSERT_1(ss_idx < 4, ss_idx);
-	ss_addr[ss_idx++] = regs->pc;
-	regs->pstate |= SPSR_SS;
-}
-
-static void guest_svc_handler(struct ex_regs *regs)
-{
-	svc_addr = regs->pc;
-}
-
-static int debug_version(struct kvm_vm *vm)
-{
-	uint64_t id_aa64dfr0;
-
-	get_reg(vm, VCPU_ID, KVM_ARM64_SYS_REG(SYS_ID_AA64DFR0_EL1), &id_aa64dfr0);
-	return id_aa64dfr0 & 0xf;
-}
-
-int main(int argc, char *argv[])
-{
-	struct kvm_vm *vm;
-	struct ucall uc;
-	int stage;
-
-	vm = vm_create_default(VCPU_ID, 0, guest_code);
-	ucall_init(vm, NULL);
-
-	vm_init_descriptor_tables(vm);
-	vcpu_init_descriptor_tables(vm, VCPU_ID);
-
-	if (debug_version(vm) < 6) {
-		print_skip("Armv8 debug architecture not supported.");
-		kvm_vm_free(vm);
-		exit(KSFT_SKIP);
-	}
-
-	vm_install_sync_handler(vm, VECTOR_SYNC_CURRENT,
-				ESR_EC_BRK_INS, guest_sw_bp_handler);
-	vm_install_sync_handler(vm, VECTOR_SYNC_CURRENT,
-				ESR_EC_HW_BP_CURRENT, guest_hw_bp_handler);
-	vm_install_sync_handler(vm, VECTOR_SYNC_CURRENT,
-				ESR_EC_WP_CURRENT, guest_wp_handler);
-	vm_install_sync_handler(vm, VECTOR_SYNC_CURRENT,
-				ESR_EC_SSTEP_CURRENT, guest_ss_handler);
-	vm_install_sync_handler(vm, VECTOR_SYNC_CURRENT,
-				ESR_EC_SVC64, guest_svc_handler);
-
-	for (stage = 0; stage < 7; stage++) {
-		vcpu_run(vm, VCPU_ID);
-
-		switch (get_ucall(vm, VCPU_ID, &uc)) {
-		case UCALL_SYNC:
-			TEST_ASSERT(uc.args[1] == stage,
-				"Stage %d: Unexpected sync ucall, got %lx",
-				stage, (ulong)uc.args[1]);
-			break;
-		case UCALL_ABORT:
-			TEST_FAIL("%s at %s:%ld\n\tvalues: %#lx, %#lx",
-				(const char *)uc.args[0],
-				__FILE__, uc.args[1], uc.args[2], uc.args[3]);
-			break;
-		case UCALL_DONE:
-			goto done;
-		default:
-			TEST_FAIL("Unknown ucall %lu", uc.cmd);
-		}
-	}
-
-done:
-	kvm_vm_free(vm);
-	return 0;
-}