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Wed, 25 Mar 2026 09:45:32 -0700 (PDT) X-Received: by 2002:a05:690c:46c8:b0:79a:67a0:adfa with SMTP id 00721157ae682-79acf65926fmr44787227b3.44.1774457132256; Wed, 25 Mar 2026 09:45:32 -0700 (PDT) Received: from [192.168.10.48] ([151.49.85.67]) by smtp.gmail.com with ESMTPSA id 00721157ae682-79b17e4359csm463357b3.20.2026.03.25.09.45.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Mar 2026 09:45:31 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: Mohamed Mediouni Subject: [PULL 19/19] target/i386: emulate: follow priv_check_exempt Date: Wed, 25 Mar 2026 17:44:53 +0100 Message-ID: <20260325164453.72127-20-pbonzini@redhat.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260325164453.72127-1-pbonzini@redhat.com> References: <20260325164453.72127-1-pbonzini@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=170.10.133.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Mohamed Mediouni Follow priv_check_exempt flag argument for x86_write_mem_priv/x86_read_mem_priv. Signed-off-by: Mohamed Mediouni Link: https://lore.kernel.org/r/20260324230016.80914-3-mohamed@unpredictable.fr Signed-off-by: Paolo Bonzini --- target/i386/emulate/x86_mmu.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/target/i386/emulate/x86_mmu.c b/target/i386/emulate/x86_mmu.c index 1aa373f5b38..c69ae96acb7 100644 --- a/target/i386/emulate/x86_mmu.c +++ b/target/i386/emulate/x86_mmu.c @@ -263,14 +263,19 @@ static MMUTranslateResult x86_write_mem_ex(CPUState *cpu, void *data, target_ulo CPUX86State *env = &x86_cpu->env; MMUTranslateResult translate_res = MMU_TRANSLATE_SUCCESS; + MMUTranslateFlags translate_flags = MMU_TRANSLATE_VALIDATE_WRITE; MemTxResult mem_tx_res; uint64_t gpa; + if (priv_check_exempt) { + translate_flags |= MMU_TRANSLATE_PRIV_CHECKS_EXEMPT; + } + while (bytes > 0) { /* copy page */ int copy = MIN(bytes, 0x1000 - (gva & 0xfff)); - translate_res = mmu_gva_to_gpa(cpu, gva, &gpa, MMU_TRANSLATE_VALIDATE_WRITE); + translate_res = mmu_gva_to_gpa(cpu, gva, &gpa, translate_flags); if (translate_res) { int error_code = translate_res_to_error_code(translate_res, true, is_user(cpu)); env->cr[2] = gva; @@ -311,14 +316,19 @@ static MMUTranslateResult x86_read_mem_ex(CPUState *cpu, void *data, target_ulon CPUX86State *env = &x86_cpu->env; MMUTranslateResult translate_res = MMU_TRANSLATE_SUCCESS; + MMUTranslateFlags translate_flags = 0; MemTxResult mem_tx_res; uint64_t gpa; + if (priv_check_exempt) { + translate_flags |= MMU_TRANSLATE_PRIV_CHECKS_EXEMPT; + } + while (bytes > 0) { /* copy page */ int copy = MIN(bytes, 0x1000 - (gva & 0xfff)); - translate_res = mmu_gva_to_gpa(cpu, gva, &gpa, 0); + translate_res = mmu_gva_to_gpa(cpu, gva, &gpa, translate_flags); if (translate_res) { int error_code = translate_res_to_error_code(translate_res, false, is_user(cpu)); env->cr[2] = gva; -- 2.53.0