From a9e445df545158e3d6e3239f10c2e88d8119fdd1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 9 Oct 2023 12:35:04 +0200 Subject: target/i386/hvf: Use env_archcpu() in simulate_[rdmsr/wrmsr]() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When CPUArchState* is available (here CPUX86State*), we can use the fast env_archcpu() macro to get ArchCPU* (here X86CPU*). The QOM cast X86_CPU() macro will be slower when building with --enable-qom-cast-debug. Pass CPUX86State* as argument to simulate_rdmsr / simulate_wrmsr instead of a CPUState* to avoid an extra cast. Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson Reviewed-by: Roman Bolshakov Tested-by: Roman Bolshakov Reviewed-by: Zhao Liu Message-Id: <20231009110239.66778-7-philmd@linaro.org> --- target/i386/hvf/hvf.c | 4 ++-- target/i386/hvf/x86_emu.c | 21 ++++++++++----------- target/i386/hvf/x86_emu.h | 4 ++-- 3 files changed, 14 insertions(+), 15 deletions(-) (limited to 'target') diff --git a/target/i386/hvf/hvf.c b/target/i386/hvf/hvf.c index cb2cd0b..20b9ca3 100644 --- a/target/i386/hvf/hvf.c +++ b/target/i386/hvf/hvf.c @@ -591,9 +591,9 @@ int hvf_vcpu_exec(CPUState *cpu) { load_regs(cpu); if (exit_reason == EXIT_REASON_RDMSR) { - simulate_rdmsr(cpu); + simulate_rdmsr(env); } else { - simulate_wrmsr(cpu); + simulate_wrmsr(env); } env->eip += ins_len; store_regs(cpu); diff --git a/target/i386/hvf/x86_emu.c b/target/i386/hvf/x86_emu.c index af1f205..b1f8a68 100644 --- a/target/i386/hvf/x86_emu.c +++ b/target/i386/hvf/x86_emu.c @@ -663,11 +663,10 @@ static void exec_lods(CPUX86State *env, struct x86_decode *decode) env->eip += decode->len; } -void simulate_rdmsr(struct CPUState *cpu) +void simulate_rdmsr(CPUX86State *env) { - X86CPU *x86_cpu = X86_CPU(cpu); - CPUX86State *env = &x86_cpu->env; - CPUState *cs = env_cpu(env); + X86CPU *x86_cpu = env_archcpu(env); + CPUState *cpu = env_cpu(env); uint32_t msr = ECX(env); uint64_t val = 0; @@ -746,8 +745,8 @@ void simulate_rdmsr(struct CPUState *cpu) val = env->mtrr_deftype; break; case MSR_CORE_THREAD_COUNT: - val = cs->nr_threads * cs->nr_cores; /* thread count, bits 15..0 */ - val |= ((uint32_t)cs->nr_cores << 16); /* core count, bits 31..16 */ + val = cpu->nr_threads * cpu->nr_cores; /* thread count, bits 15..0 */ + val |= ((uint32_t)cpu->nr_cores << 16); /* core count, bits 31..16 */ break; default: /* fprintf(stderr, "%s: unknown msr 0x%x\n", __func__, msr); */ @@ -761,14 +760,14 @@ void simulate_rdmsr(struct CPUState *cpu) static void exec_rdmsr(CPUX86State *env, struct x86_decode *decode) { - simulate_rdmsr(env_cpu(env)); + simulate_rdmsr(env); env->eip += decode->len; } -void simulate_wrmsr(struct CPUState *cpu) +void simulate_wrmsr(CPUX86State *env) { - X86CPU *x86_cpu = X86_CPU(cpu); - CPUX86State *env = &x86_cpu->env; + X86CPU *x86_cpu = env_archcpu(env); + CPUState *cpu = env_cpu(env); uint32_t msr = ECX(env); uint64_t data = ((uint64_t)EDX(env) << 32) | EAX(env); @@ -856,7 +855,7 @@ void simulate_wrmsr(struct CPUState *cpu) static void exec_wrmsr(CPUX86State *env, struct x86_decode *decode) { - simulate_wrmsr(env_cpu(env)); + simulate_wrmsr(env); env->eip += decode->len; } diff --git a/target/i386/hvf/x86_emu.h b/target/i386/hvf/x86_emu.h index 640da90..4b846ba 100644 --- a/target/i386/hvf/x86_emu.h +++ b/target/i386/hvf/x86_emu.h @@ -29,8 +29,8 @@ bool exec_instruction(CPUX86State *env, struct x86_decode *ins); void load_regs(struct CPUState *cpu); void store_regs(struct CPUState *cpu); -void simulate_rdmsr(struct CPUState *cpu); -void simulate_wrmsr(struct CPUState *cpu); +void simulate_rdmsr(CPUX86State *env); +void simulate_wrmsr(CPUX86State *env); target_ulong read_reg(CPUX86State *env, int reg, int size); void write_reg(CPUX86State *env, int reg, target_ulong val, int size); -- cgit v1.1