From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Cc: richard.henderson@linaro.org
Subject: [PATCH v2 07/10] target/i386: sysret and sysexit are privileged
Date: Tue, 20 Jun 2023 17:16:31 +0200 [thread overview]
Message-ID: <20230620151634.21053-8-pbonzini@redhat.com> (raw)
In-Reply-To: <20230620151634.21053-1-pbonzini@redhat.com>
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 9aec7ec8288..c58f5f24ab3 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -5675,7 +5675,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
/* For Intel SYSEXIT is valid on 64-bit */
if (CODE64(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));
@@ -5697,7 +5697,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
gen_eob_worker(s, false, true);
break;
case 0x107: /* sysret */
- if (!PE(s)) {
+ if (!PE(s) || CPL(s) != 0) {
gen_exception_gpf(s);
} else {
gen_helper_sysret(cpu_env, tcg_constant_i32(dflag - 1));
--
2.40.1
next prev parent reply other threads:[~2023-06-20 15:19 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-20 15:16 [PATCH v2 00/10] target/i386: add a few simple features Paolo Bonzini
2023-06-20 15:16 ` [PATCH v2 01/10] target/i386: fix INVD vmexit Paolo Bonzini
2023-06-20 15:16 ` [PATCH v2 02/10] target/i386: TCG supports 3DNow! prefetch(w) Paolo Bonzini
2023-06-20 15:16 ` [PATCH v2 03/10] target/i386: TCG supports RDSEED Paolo Bonzini
2023-06-20 16:24 ` Richard Henderson
2023-06-21 5:46 ` Paolo Bonzini
2023-06-20 15:16 ` [PATCH v2 04/10] target/i386: TCG supports XSAVEERPTR Paolo Bonzini
2023-06-20 15:16 ` [PATCH v2 05/10] target/i386: TCG supports WBNOINVD Paolo Bonzini
2023-06-20 15:16 ` [PATCH v2 06/10] target/i386: Intel only supports SYSCALL in long mode Paolo Bonzini
2023-06-20 15:57 ` Richard Henderson
2023-06-20 15:16 ` Paolo Bonzini [this message]
2023-06-20 15:58 ` [PATCH v2 07/10] target/i386: sysret and sysexit are privileged Richard Henderson
2023-06-20 15:16 ` [PATCH v2 08/10] target/i386: implement 32-bit SYSCALL for linux-user Paolo Bonzini
2023-06-20 16:10 ` Richard Henderson
2023-06-20 15:16 ` [PATCH v2 09/10] target/i386: implement 32-bit SYSENTER " Paolo Bonzini
2023-06-20 16:22 ` Richard Henderson
2023-06-20 16:27 ` Paolo Bonzini
2023-06-20 15:16 ` [PATCH v2 10/10] target/i386: implement RDPID in TCG Paolo Bonzini
2023-06-20 16:23 ` Richard Henderson
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