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[v3,01/16] target/riscv: Remove unuseful KVM stubs

Message ID 20230711121453.59138-2-philmd@linaro.org
State New
Headers show
Series target/riscv: Allow building without TCG (KVM-only so far) | expand

Commit Message

Philippe Mathieu-Daudé July 11, 2023, 12:14 p.m. UTC 
Since we always check whether KVM is enabled before calling
kvm_riscv_reset_vcpu() and kvm_riscv_set_irq(), their call
is elided by the compiler when KVM is not available.
Therefore the stubs are not even linked. Remove them.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Tested-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
---
 target/riscv/kvm-stub.c  | 30 ------------------------------
 target/riscv/kvm.c       |  4 +---
 target/riscv/meson.build |  2 +-
 3 files changed, 2 insertions(+), 34 deletions(-)
 delete mode 100644 target/riscv/kvm-stub.c
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Patch

diff --git a/target/riscv/kvm-stub.c b/target/riscv/kvm-stub.c
deleted file mode 100644
index 4e8fc31a21..0000000000
--- a/target/riscv/kvm-stub.c
+++ /dev/null
@@ -1,30 +0,0 @@ 
-/*
- * QEMU KVM RISC-V specific function stubs
- *
- * Copyright (c) 2020 Huawei Technologies Co., Ltd
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2 or later, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-#include "qemu/osdep.h"
-#include "cpu.h"
-#include "kvm_riscv.h"
-
-void kvm_riscv_reset_vcpu(RISCVCPU *cpu)
-{
-    abort();
-}
-
-void kvm_riscv_set_irq(RISCVCPU *cpu, int irq, int level)
-{
-    abort();
-}
diff --git a/target/riscv/kvm.c b/target/riscv/kvm.c
index 9d8a8982f9..b2bbcd9058 100644
--- a/target/riscv/kvm.c
+++ b/target/riscv/kvm.c
@@ -984,9 +984,7 @@  void kvm_riscv_reset_vcpu(RISCVCPU *cpu)
 {
     CPURISCVState *env = &cpu->env;
 
-    if (!kvm_enabled()) {
-        return;
-    }
+    assert(kvm_enabled());
     env->pc = cpu->env.kernel_addr;
     env->gpr[10] = kvm_arch_vcpu_id(CPU(cpu)); /* a0 */
     env->gpr[11] = cpu->env.fdt_addr;          /* a1 */
diff --git a/target/riscv/meson.build b/target/riscv/meson.build
index 7f56c5f88d..e3ab3df4e5 100644
--- a/target/riscv/meson.build
+++ b/target/riscv/meson.build
@@ -22,7 +22,7 @@  riscv_ss.add(files(
   'crypto_helper.c',
   'zce_helper.c'
 ))
-riscv_ss.add(when: 'CONFIG_KVM', if_true: files('kvm.c'), if_false: files('kvm-stub.c'))
+riscv_ss.add(when: 'CONFIG_KVM', if_true: files('kvm.c'))
 
 riscv_system_ss = ss.source_set()
 riscv_system_ss.add(files(