target/i386: Unify invlpg, invlpga
Use a single helper, flush_page, to do the work.
Use gen_svm_check_intercept.
Perform the zero-extension for invlpga inline.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210514151342.384376-43-richard.henderson@linaro.org>
diff --git a/target/i386/tcg/sysemu/misc_helper.c b/target/i386/tcg/sysemu/misc_helper.c
index 803c39e..0cef2f1 100644
--- a/target/i386/tcg/sysemu/misc_helper.c
+++ b/target/i386/tcg/sysemu/misc_helper.c
@@ -439,12 +439,9 @@
env->regs[R_EDX] = (uint32_t)(val >> 32);
}
-void helper_invlpg(CPUX86State *env, target_ulong addr)
+void helper_flush_page(CPUX86State *env, target_ulong addr)
{
- X86CPU *cpu = env_archcpu(env);
-
- cpu_svm_check_intercept_param(env, SVM_EXIT_INVLPG, 0, GETPC());
- tlb_flush_page(CPU(cpu), addr);
+ tlb_flush_page(env_cpu(env), addr);
}
static void QEMU_NORETURN do_hlt(CPUX86State *env)
diff --git a/target/i386/tcg/sysemu/svm_helper.c b/target/i386/tcg/sysemu/svm_helper.c
index b431016..9d67129 100644
--- a/target/i386/tcg/sysemu/svm_helper.c
+++ b/target/i386/tcg/sysemu/svm_helper.c
@@ -412,24 +412,6 @@
env->hflags2 &= ~HF2_GIF_MASK;
}
-void helper_invlpga(CPUX86State *env, int aflag)
-{
- X86CPU *cpu = env_archcpu(env);
- target_ulong addr;
-
- cpu_svm_check_intercept_param(env, SVM_EXIT_INVLPGA, 0, GETPC());
-
- if (aflag == 2) {
- addr = env->regs[R_EAX];
- } else {
- addr = (uint32_t)env->regs[R_EAX];
- }
-
- /* XXX: could use the ASID to see if it is needed to do the
- flush */
- tlb_flush_page(CPU(cpu), addr);
-}
-
void cpu_svm_check_intercept_param(CPUX86State *env, uint32_t type,
uint64_t param, uintptr_t retaddr)
{
diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index 39af147..eb11a75 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -194,9 +194,8 @@
#ifdef CONFIG_USER_ONLY
STUB_HELPER(clgi, TCGv_env env)
+STUB_HELPER(flush_page, TCGv_env env, TCGv addr)
STUB_HELPER(hlt, TCGv_env env, TCGv_i32 pc_ofs)
-STUB_HELPER(invlpga, TCGv_env env, TCGv_i32 aflag)
-STUB_HELPER(invlpg, TCGv_env env, TCGv addr)
STUB_HELPER(monitor, TCGv_env env, TCGv addr)
STUB_HELPER(mwait, TCGv_env env, TCGv_i32 pc_ofs)
STUB_HELPER(set_dr, TCGv_env env, TCGv_i32 reg, TCGv val)
@@ -7592,9 +7591,15 @@
if (!check_cpl0(s)) {
break;
}
- gen_update_cc_op(s);
- gen_jmp_im(s, pc_start - s->cs_base);
- gen_helper_invlpga(cpu_env, tcg_const_i32(s->aflag - 1));
+ gen_svm_check_intercept(s, SVM_EXIT_INVLPGA);
+ if (s->aflag == MO_64) {
+ tcg_gen_mov_tl(s->A0, cpu_regs[R_EAX]);
+ } else {
+ tcg_gen_ext32u_tl(s->A0, cpu_regs[R_EAX]);
+ }
+ gen_helper_flush_page(cpu_env, s->A0);
+ gen_jmp_im(s, s->pc - s->cs_base);
+ gen_eob(s);
break;
CASE_MODRM_MEM_OP(2): /* lgdt */
@@ -7682,10 +7687,9 @@
if (!check_cpl0(s)) {
break;
}
- gen_update_cc_op(s);
- gen_jmp_im(s, pc_start - s->cs_base);
+ gen_svm_check_intercept(s, SVM_EXIT_INVLPG);
gen_lea_modrm(env, s, modrm);
- gen_helper_invlpg(cpu_env, s->A0);
+ gen_helper_flush_page(cpu_env, s->A0);
gen_jmp_im(s, s->pc - s->cs_base);
gen_eob(s);
break;