From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59037) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Yff4B-0007Uq-Q1 for qemu-devel@nongnu.org; Tue, 07 Apr 2015 21:46:08 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Yff46-0007C8-Ml for qemu-devel@nongnu.org; Tue, 07 Apr 2015 21:46:07 -0400 Received: from mail-pa0-f42.google.com ([209.85.220.42]:34264) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Yff46-0007Bo-Hi for qemu-devel@nongnu.org; Tue, 07 Apr 2015 21:46:02 -0400 Received: by pacyx8 with SMTP id yx8so97302722pac.1 for ; Tue, 07 Apr 2015 18:46:01 -0700 (PDT) Message-ID: <55248851.70009@ozlabs.ru> Date: Wed, 08 Apr 2015 11:45:53 +1000 From: Alexey Kardashevskiy MIME-Version: 1.0 References: <1427955971-8895-1-git-send-email-aik@ozlabs.ru> <55244161.2070208@suse.de> In-Reply-To: <55244161.2070208@suse.de> Content-Type: text/plain; charset=koi8-r; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH qemu] qemu-options: Add documentation about PPC64's "-cpu compat" option List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alexander Graf , qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org, David Gibson On 04/08/2015 06:43 AM, Alexander Graf wrote: > On 04/02/2015 08:26 AM, Alexey Kardashevskiy wrote: >> Since 8dfa3a5e "target-ppc: Add "compat" CPU option" (which was a part of >> client-architecture-support patchset) there is a "compat" option >> of "-cpu". However it was not documented at all and this is what this >> patch is trying to do. >> >> Signed-off-by: Alexey Kardashevskiy >> --- >> qemu-options.hx | 11 ++++++++++- >> 1 file changed, 10 insertions(+), 1 deletion(-) >> >> diff --git a/qemu-options.hx b/qemu-options.hx >> index c513352..bd15214 100644 >> --- a/qemu-options.hx >> +++ b/qemu-options.hx >> @@ -84,11 +84,20 @@ HXCOMM Deprecated by -machine >> DEF("M", HAS_ARG, QEMU_OPTION_M, "", QEMU_ARCH_ALL) >> DEF("cpu", HAS_ARG, QEMU_OPTION_cpu, >> - "-cpu cpu select CPU ('-cpu help' for list)\n", QEMU_ARCH_ALL) >> + "-cpu cpu,[compat=MODE]\n" >> + " select CPU ('-cpu help' for list)\n" >> + " compat= processor compatibility mode (PPC64 only)\n", >> + QEMU_ARCH_ALL) > > Shouldn't there be a way to show this only for the ppc64 target? I do not really know, I did not dig deep. I just saw "Intel IOMMU (VT-d)" in "qemu-system-ppc64 --help" output and concluded there is no easy way. > > > Alex > >> STEXI >> @item -cpu @var{model} >> @findex -cpu >> Select CPU model (@code{-cpu help} for list and additional feature >> selection) >> +@table @option >> +@item compat=power6|power7|power8 >> +(PPC64 only) >> +Enables architecture compatibility mode. "power6" enables PowerISA 2.05, >> +"power7" - 2.06, "power8" - 2.07. >> +@end table >> ETEXI >> DEF("smp", HAS_ARG, QEMU_OPTION_smp, > -- Alexey