Re: [Qemu-discuss] Getting qemu-system-i386 to use more than one core on Cortex A7 host

2016-01-04 Thread Jakob Bohm
On 04/01/2016 22:29, Peter Maydell wrote: On 4 January 2016 at 13:24, Jakob Bohm wrote: For your information, the x86 memory model only requires barriers in the following cases (this is somewhat implemented on modern machines with multiple actual x86 CPU sockets, as opposed to multicore chips,

Re: [Qemu-discuss] Getting qemu-system-i386 to use more than one core on Cortex A7 host

2016-01-04 Thread Peter Maydell
On 4 January 2016 at 13:24, Jakob Bohm wrote: > For your information, the x86 memory model only requires > barriers in the following cases (this is somewhat > implemented on modern machines with multiple actual x86 > CPU sockets, as opposed to multicore chips, it may also > be observed when using

Re: [Qemu-discuss] Qemu reports slightly less memory on PXE boot

2016-01-04 Thread Jakob Bohm
On 04/01/2016 17:23, Prem Anand Haridoss wrote: From: qemu-discuss-bounces+h.prem.anand=gmail@nongnu.org [mailto:qemu-discuss-bounces+h.prem.anand=gmail@nongnu.org] On Behalf Of Jakob Bohm Sent: 04 January 2016 15:56 To: qemu-discuss@nongnu.org Subject: Re: [Qemu-discuss] Qemu reports s

Re: [Qemu-discuss] Qemu reports slightly less memory on PXE boot

2016-01-04 Thread Prem Anand Haridoss
From: qemu-discuss-bounces+h.prem.anand=gmail@nongnu.org [mailto:qemu-discuss-bounces+h.prem.anand=gmail@nongnu.org] On Behalf Of Jakob Bohm Sent: 04 January 2016 15:56 To: qemu-discuss@nongnu.org Subject: Re: [Qemu-discuss] Qemu reports slightly less memory on PXE boot >> On 04/01/2016

Re: [Qemu-discuss] Qemu reports slightly less memory on PXE boot

2016-01-04 Thread Jakob Bohm
On 04/01/2016 15:21, Prem Anand Haridoss wrote: On booting an iso (from the cdrom) with 8G memory, after bootup, I see 8179816 kB as the total memory available. However on PXE booting the same vCPE livecd iso over a nic, with the same 8G memory, we see only 7857512 kB as the total memory ava

[Qemu-discuss] Qemu reports slightly less memory on PXE boot

2016-01-04 Thread Prem Anand Haridoss
On booting an iso (from the cdrom) with 8G memory, after bootup, I see 8179816 kB as the total memory available. However on PXE booting the same vCPE livecd iso over a nic, with the same 8G memory, we see only 7857512 kB as the total memory available Is this a bug in qemu? I am using version 2.5

Re: [Qemu-discuss] Getting qemu-system-i386 to use more than one core on Cortex A7 host

2016-01-04 Thread Jakob Bohm
On 04/01/2016 13:21, Peter Maydell wrote: On 3 January 2016 at 20:57, David Durham wrote: Any suggestions or comments on how to do this are very welcome ... I built qemu with --target-list i386-softmmu and when I run qemu, top only shows one qemu-system-i386 using 100% of one core This is expe

Re: [Qemu-discuss] Getting qemu-system-i386 to use more than one core on Cortex A7 host

2016-01-04 Thread Peter Maydell
On 3 January 2016 at 20:57, David Durham wrote: > Any suggestions or comments on how to do this are very welcome > ... I built qemu with --target-list i386-softmmu and when I run > qemu, top only shows one qemu-system-i386 using 100% of one core This is expected. Our current emulation is single t