On 4/21/20 12:53 AM, Dennis Clarke wrote: > On 4/20/20 6:56 PM, Peter Maydell wrote: >> On Fri, 17 Apr 2020 at 10:08, Philippe Mathieu-Daudé <f4...@amsat.org> >> wrote: >>> >>> This fixes: >>> >>> $ qemu-system-ppc64 \ >>> -machine pseries-4.1 -cpu power9 \ >>> -smp 4 -m 12G -accel tcg ... >>> ... >>> Quiescing Open Firmware ... >>> Booting Linux via __start() @ 0x0000000002000000 ... >>> Opcode 1f 12 0f 00 (7ce003e4) leaked temporaries >>> Opcode 1f 12 0f 00 (7ce003e4) leaked temporaries >>> Opcode 1f 12 0f 00 (7ce003e4) leaked temporaries >>> >>> [*] https://www.mail-archive.com/qemu-discuss@nongnu.org/msg05400.html >>> >>> Fixes: 0418bf78fe8 ("Fix ISA v3.0 (POWER9) slbia implementation") >>> Reported-by: Dennis Clarke <dcla...@blastwave.org> >>> Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org> >> >> I propose to apply this patch for 5.0 rc4 (as well as the >> ppc pullreq already sent), since the iscsi bugfix means >> we need an rc4 anyway. Any objections? >> > > I have been running rc3 with this patch fine for some days now. Both > with and without a debug enabled build wherein the performance > difference between the two is obvious.
Thanks for testing it! Can we use your: Tested-by: Dennis Clarke <dcla...@blastwave.org> tag? > > However, I do see warnings from 5.0.0-rc3 that worry me : > > $ /usr/local/bin/qemu-system-ppc64 \ >> -machine pseries-4.1 -cpu power9 -smp 4 -m 12G -accel tcg \ >> -drive file=/home/ppc64/ppc64le.qcow2 \ >> -device virtio-net-pci,netdev=usernet \ >> -netdev user,id=usernet,hostfwd=tcp::10000-:22 \ >> -serial stdio -display none -vga none > qemu-system-ppc64: warning: TCG doesn't support requested feature, > cap-cfpc=workaround > qemu-system-ppc64: warning: TCG doesn't support requested feature, > cap-sbbc=workaround > qemu-system-ppc64: warning: TCG doesn't support requested feature, > cap-ibs=workaround > > > SLOF ********************************************************************** > QEMU Starting > Build Date = Mar 27 2020 13:57:26 > FW Version = git-8e012d6fddb62be8 > Press "s" to enter Open Firmware. > > Populating /vdevice methods > Populating /vdevice/vty@71000000 > Populating /vdevice/nvram@71000001 > Populating /vdevice/v-scsi@71000002 > SCSI: Looking for devices > 8000000000000000 DISK : "QEMU QEMU HARDDISK 2.5+" > 8200000000000000 CD-ROM : "QEMU QEMU CD-ROM 2.5+" > Populating /pci@800000020000000 > 00 0000 (D) : 1af4 1000 virtio [ net ] > No NVRAM common partition, re-initializing... > Scanning USB > Using default console: /vdevice/vty@71000000 > > Welcome to Open Firmware > > Copyright (c) 2004, 2017 IBM Corporation All rights reserved. > This program and the accompanying materials are made available > under the terms of the BSD License available at > http://www.opensource.org/licenses/bsd-license.php > > > Trying to load: from: /vdevice/v-scsi@71000002/disk@8000000000000000 > ... Successfully loaded > > > etc etc etc > > What shall I do with "TCG doesn't support requested feature, > cap-cfpc=workaround" ?? >
