Re: [Qemu-devel] Regression with floppy drive controller

2019-08-21 Thread Paolo Bonzini
On 21/08/19 08:42, Gerd Hoffmann wrote: >> So we should use '-cpu Conroe' or '-cpu core2duo' minimum? > -cpu Conroe for -M isapc is kida silly though ... > > Maybe we should simply build seabios with CONFIG_TSC_TIMER=n ? > > Using the TSC in a virtual machine is problematic anyway, the > calibrat

Re: [Qemu-devel] Regression with floppy drive controller

2019-08-20 Thread Gerd Hoffmann
Hi, > Using the default QEMU config, we build SeaBIOS to use the TSC timer: > > builds/seabios-128k/.config:CONFIG_TSC_TIMER=y > builds/seabios-256k/.config:CONFIG_TSC_TIMER=y > Do we need a cpu with TSC support to run SeaBIOS? Hmm. seabios uses pmtimer if available. isapc has no pmtimer th

Re: [Qemu-devel] Regression with floppy drive controller

2019-08-20 Thread Eduardo Habkost
On Tue, Aug 20, 2019 at 06:21:28PM +0200, Philippe Mathieu-Daudé wrote: > Cc'ing Eduardo, Paolo. > > On 8/20/19 3:38 PM, Philippe Mathieu-Daudé wrote: > > On 8/20/19 3:12 PM, John Snow wrote: > >> On 8/20/19 6:25 AM, Philippe Mathieu-Daudé wrote: > >>> [cross posting QEMU & SeaBIOS] > >>> > >>> He

Re: [Qemu-devel] Regression with floppy drive controller

2019-08-20 Thread Philippe Mathieu-Daudé
Cc'ing Eduardo, Paolo. On 8/20/19 3:38 PM, Philippe Mathieu-Daudé wrote: > On 8/20/19 3:12 PM, John Snow wrote: >> On 8/20/19 6:25 AM, Philippe Mathieu-Daudé wrote: >>> [cross posting QEMU & SeaBIOS] >>> >>> Hello, >>> >>> I'v been looking at a QEMU bug report [1] which bisection resulted in a >>>

Re: [Qemu-devel] Regression with floppy drive controller

2019-08-20 Thread Philippe Mathieu-Daudé
On 8/20/19 3:38 PM, Philippe Mathieu-Daudé wrote: > On 8/20/19 3:12 PM, John Snow wrote: >> On 8/20/19 6:25 AM, Philippe Mathieu-Daudé wrote: >>> [cross posting QEMU & SeaBIOS] >>> >>> Hello, >>> >>> I'v been looking at a QEMU bug report [1] which bisection resulted in a >>> SeaBIOS commit: >>> >>>

Re: [Qemu-devel] Regression with floppy drive controller

2019-08-20 Thread Philippe Mathieu-Daudé
On 8/20/19 3:12 PM, John Snow wrote: > On 8/20/19 6:25 AM, Philippe Mathieu-Daudé wrote: >> [cross posting QEMU & SeaBIOS] >> >> Hello, >> >> I'v been looking at a QEMU bug report [1] which bisection resulted in a >> SeaBIOS commit: >> >> 4a6dbcea3e412fe12effa2f812f50dd7eae90955 is the first bad co

Re: [Qemu-devel] Regression with floppy drive controller

2019-08-20 Thread John Snow
On 8/20/19 6:25 AM, Philippe Mathieu-Daudé wrote: > [cross posting QEMU & SeaBIOS] > > Hello, > > I'v been looking at a QEMU bug report [1] which bisection resulted in a > SeaBIOS commit: > > 4a6dbcea3e412fe12effa2f812f50dd7eae90955 is the first bad commit > commit 4a6dbcea3e412fe12effa2f812f

[Qemu-devel] Regression with floppy drive controller

2019-08-20 Thread Philippe Mathieu-Daudé
[cross posting QEMU & SeaBIOS] Hello, I'v been looking at a QEMU bug report [1] which bisection resulted in a SeaBIOS commit: 4a6dbcea3e412fe12effa2f812f50dd7eae90955 is the first bad commit commit 4a6dbcea3e412fe12effa2f812f50dd7eae90955 Author: Nikolay Nikolov Date: Sun Feb 4 17:27:01 2018