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Wed, 25 Mar 2026 09:45:17 -0700 (PDT) X-Received: by 2002:a05:600c:6089:b0:485:3f72:324d with SMTP id 5b1f17b1804b1-48716008471mr60870145e9.14.1774457116709; Wed, 25 Mar 2026 09:45:16 -0700 (PDT) Received: from [192.168.10.48] ([151.49.85.67]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-487165be1e3sm28475055e9.1.2026.03.25.09.45.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Mar 2026 09:45:16 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: Mohamed Mediouni Subject: [PULL 12/19] whpx: i386: indirect access to CRs Date: Wed, 25 Mar 2026 17:44:46 +0100 Message-ID: <20260325164453.72127-13-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=170.10.129.124; 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_H3=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 Signed-off-by: Mohamed Mediouni Link: https://lore.kernel.org/r/20260324151323.74473-10-mohamed@unpredictable.fr Signed-off-by: Paolo Bonzini --- target/i386/whpx/whpx-all.c | 32 +++++++++++++++++++++++++++++++- 1 file changed, 31 insertions(+), 1 deletion(-) diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c index b97dc9fd514..71b33a632ac 100644 --- a/target/i386/whpx/whpx-all.c +++ b/target/i386/whpx/whpx-all.c @@ -905,12 +905,42 @@ static bool is_user_mode(CPUState *cpu) return vcpu->exit_ctx.VpContext.ExecutionState.Cpl == 3; } +static target_ulong read_cr(CPUState *cpu, int cr) +{ + WHV_REGISTER_NAME whv_cr; + WHV_REGISTER_VALUE val; + + switch (cr) { + case 0: + whv_cr = WHvX64RegisterCr0; + break; + case 2: + whv_cr = WHvX64RegisterCr2; + break; + case 3: + whv_cr = WHvX64RegisterCr3; + break; + case 4: + whv_cr = WHvX64RegisterCr4; + break; + case 8: + whv_cr = WHvX64RegisterCr8; + break; + default: + abort(); + } + whpx_get_reg(cpu, whv_cr, &val); + + return val.Reg64; +} + static const struct x86_emul_ops whpx_x86_emul_ops = { .read_segment_descriptor = read_segment_descriptor, .handle_io = handle_io, .is_protected_mode = is_protected_mode, .is_long_mode = is_long_mode, - .is_user_mode = is_user_mode + .is_user_mode = is_user_mode, + .read_cr = read_cr }; static void whpx_init_emu(void) -- 2.53.0