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envelope-from=anisinha@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, SPF_HELO_NONE=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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org PAE mode in x86 supports 36 bit address space. Check the PAE CPUID on the guest processor and set phys_bits to 36 if PAE feature is set. This is in addition to checking the presence of PSE36 CPUID feature for setting 36 bit phys_bits. Signed-off-by: Ani Sinha Reviewed-by: David Hildenbrand Acked-by: Michael S. Tsirkin --- target/i386/cpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Note: Not sure what tests I should be running in order to make sure I am not breaking any guest OSes. Usual qtests pass. diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 24ee67b42d..f3a5c99117 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -7375,7 +7375,7 @@ static void x86_cpu_realizefn(DeviceState *dev, Error **errp) return; } - if (env->features[FEAT_1_EDX] & CPUID_PSE36) { + if (env->features[FEAT_1_EDX] & (CPUID_PSE36 | CPUID_PAE)) { cpu->phys_bits = 36; } else { cpu->phys_bits = 32;