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From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Cc: richard.henderson@linaro.org
Subject: [PATCH v3 09/11] target/i386: sysret and sysexit are privileged
Date: Fri, 23 Jun 2023 15:17:09 +0200	[thread overview]
Message-ID: <20230623131711.96775-10-pbonzini@redhat.com> (raw)
In-Reply-To: <20230623131711.96775-1-pbonzini@redhat.com>

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/translate.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index a20b5af71e7..66800392bb9 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -5685,7 +5685,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
         if (LMA(s) && env->cpuid_vendor1 != CPUID_VENDOR_INTEL_1) {
             goto illegal_op;
         }
-        if (!PE(s)) {
+        if (!PE(s) || CPL(s) != 0) {
             gen_exception_gpf(s);
         } else {
             gen_helper_sysexit(cpu_env, tcg_constant_i32(dflag - 1));
@@ -5711,7 +5711,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
         if (!LMA(s) && env->cpuid_vendor1 == CPUID_VENDOR_INTEL_1) {
             goto illegal_op;
         }
-        if (!PE(s)) {
+        if (!PE(s) || CPL(s) != 0) {
             gen_exception_gpf(s);
         } else {
             gen_helper_sysret(cpu_env, tcg_constant_i32(dflag - 1));
-- 
2.41.0



  parent reply	other threads:[~2023-06-23 13:18 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-23 13:17 [PATCH v3 00/11] target/i386: add a few simple features Paolo Bonzini
2023-06-23 13:17 ` [PATCH v3 01/11] target/i386: fix INVD vmexit Paolo Bonzini
2023-06-23 13:17 ` [PATCH v3 02/11] target/i386: TCG supports 3DNow! prefetch(w) Paolo Bonzini
2023-06-23 13:17 ` [PATCH v3 03/11] target/i386: TCG supports RDSEED Paolo Bonzini
2023-06-23 13:17 ` [PATCH v3 04/11] target/i386: do not accept RDSEED if CPUID bit absent Paolo Bonzini
2023-06-26  7:51   ` Richard Henderson
2023-06-23 13:17 ` [PATCH v3 05/11] target/i386: TCG supports XSAVEERPTR Paolo Bonzini
2023-06-23 13:17 ` [PATCH v3 06/11] target/i386: TCG supports WBNOINVD Paolo Bonzini
2023-06-23 13:17 ` [PATCH v3 07/11] target/i386: Intel only supports SYSCALL/SYSRET in long mode Paolo Bonzini
2023-06-23 13:17 ` [PATCH v3 08/11] target/i386: AMD only supports SYSENTER/SYSEXIT in 32-bit mode Paolo Bonzini
2023-06-26  7:53   ` Richard Henderson
2023-06-23 13:17 ` Paolo Bonzini [this message]
2023-06-23 13:17 ` [PATCH v3 10/11] target/i386: implement RDPID in TCG Paolo Bonzini
2023-06-23 13:17 ` [PATCH v3 11/11] target/i386: implement SYSCALL/SYSRET in 32-bit emulators Paolo Bonzini
2023-06-26  7:56   ` Richard Henderson

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