0fc670d07d
Due to commit2b7deea3ec("Revert "kvm: selftests: move base kvm_util.h declarations to kvm_util_base.h"") kvm selftests now requires explicitly including ucall_common.h when needed. The commit added the directives everywhere they were needed at the time, but, by merge time, new places had been merged for RISC-V. Add those now to fix RISC-V's compilation. Fixes:dee7ea42a1("Merge tag 'kvm-x86-selftests_utils-6.10' of https://github.com/kvm-x86/linux into HEAD") Signed-off-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20240603122045.323064-2-ajones@ventanamicro.com Signed-off-by: Anup Patel <anup@brainfault.org>
83 lines
1.7 KiB
C
83 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* RISC-V KVM ebreak test.
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*
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* Copyright 2024 Beijing ESWIN Computing Technology Co., Ltd.
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*
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*/
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#include "kvm_util.h"
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#include "ucall_common.h"
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#define LABEL_ADDRESS(v) ((uint64_t)&(v))
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extern unsigned char sw_bp_1, sw_bp_2;
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static uint64_t sw_bp_addr;
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static void guest_code(void)
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{
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asm volatile(
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".option push\n"
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".option norvc\n"
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"sw_bp_1: ebreak\n"
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"sw_bp_2: ebreak\n"
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".option pop\n"
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);
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GUEST_ASSERT_EQ(READ_ONCE(sw_bp_addr), LABEL_ADDRESS(sw_bp_2));
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GUEST_DONE();
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}
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static void guest_breakpoint_handler(struct ex_regs *regs)
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{
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WRITE_ONCE(sw_bp_addr, regs->epc);
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regs->epc += 4;
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}
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int main(void)
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{
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struct kvm_vm *vm;
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struct kvm_vcpu *vcpu;
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uint64_t pc;
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struct kvm_guest_debug debug = {
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.control = KVM_GUESTDBG_ENABLE,
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};
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TEST_REQUIRE(kvm_has_cap(KVM_CAP_SET_GUEST_DEBUG));
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vm = vm_create_with_one_vcpu(&vcpu, guest_code);
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vm_init_vector_tables(vm);
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vcpu_init_vector_tables(vcpu);
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vm_install_exception_handler(vm, EXC_BREAKPOINT,
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guest_breakpoint_handler);
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/*
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* Enable the guest debug.
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* ebreak should exit to the VMM with KVM_EXIT_DEBUG reason.
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*/
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vcpu_guest_debug_set(vcpu, &debug);
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vcpu_run(vcpu);
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TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_DEBUG);
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vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.pc), &pc);
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TEST_ASSERT_EQ(pc, LABEL_ADDRESS(sw_bp_1));
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/* skip sw_bp_1 */
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vcpu_set_reg(vcpu, RISCV_CORE_REG(regs.pc), pc + 4);
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/*
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* Disable all debug controls.
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* Guest should handle the ebreak without exiting to the VMM.
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*/
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memset(&debug, 0, sizeof(debug));
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vcpu_guest_debug_set(vcpu, &debug);
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vcpu_run(vcpu);
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TEST_ASSERT_EQ(get_ucall(vcpu, NULL), UCALL_DONE);
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kvm_vm_free(vm);
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return 0;
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}
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