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Wed, 25 Mar 2026 09:45:12 -0700 (PDT) X-Received: by 2002:a05:600c:1f86:b0:485:46fd:7887 with SMTP id 5b1f17b1804b1-48715fef87fmr66012985e9.13.1774457112316; Wed, 25 Mar 2026 09:45:12 -0700 (PDT) Received: from [192.168.10.48] ([151.49.85.67]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48711701804sm144417675e9.4.2026.03.25.09.45.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Mar 2026 09:45:11 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: Mohamed Mediouni Subject: [PULL 10/19] whpx: i386: add implementation of new x86_emul_ops Date: Wed, 25 Mar 2026 17:44:44 +0100 Message-ID: <20260325164453.72127-11-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 target/i386/emulate now has new ops for fetching whether the guest is in protected mode, long mode or user mode without fetching control registers. Use those for faster vmexits. Signed-off-by: Mohamed Mediouni Link: https://lore.kernel.org/r/20260324151323.74473-8-mohamed@unpredictable.fr Signed-off-by: Paolo Bonzini --- target/i386/whpx/whpx-all.c | 24 +++++++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c index 69d141e7cce..b97dc9fd514 100644 --- a/target/i386/whpx/whpx-all.c +++ b/target/i386/whpx/whpx-all.c @@ -885,10 +885,32 @@ static void read_segment_descriptor(CPUState *cpu, } } +static bool is_protected_mode(CPUState *cpu) +{ + AccelCPUState *vcpu = cpu->accel; + + return vcpu->exit_ctx.VpContext.ExecutionState.Cr0Pe == 1; +} + +static bool is_long_mode(CPUState *cpu) +{ + AccelCPUState *vcpu = cpu->accel; + + return vcpu->exit_ctx.VpContext.ExecutionState.EferLma == 1; +} + +static bool is_user_mode(CPUState *cpu) +{ + AccelCPUState *vcpu = cpu->accel; + return vcpu->exit_ctx.VpContext.ExecutionState.Cpl == 3; +} static const struct x86_emul_ops whpx_x86_emul_ops = { .read_segment_descriptor = read_segment_descriptor, - .handle_io = handle_io + .handle_io = handle_io, + .is_protected_mode = is_protected_mode, + .is_long_mode = is_long_mode, + .is_user_mode = is_user_mode }; static void whpx_init_emu(void) -- 2.53.0