tml
> which never got merged.
>
> Signed-off-by: Steffen Görtz
> Reviewed-by: Stefan Hajnoczi
> Reviewed-by: Thomas Huth
> Reviewed-by: Laurent Vivier
> Signed-off-by: Stefan Hajnoczi
> Message-id: 20190103091119.9367-2-stefa...@redhat.com
> Originally-by: Matthew Ogil
.)
- Matthew Ogilvie
On Fri, Jan 11, 2013 at 05:45:28PM +0200, Gleb Natapov wrote:
On Thu, Jan 10, 2013 at 11:40:07PM -0700, Matthew Ogilvie wrote:
On Tue, Jan 08, 2013 at 09:31:19AM +0200, Gleb Natapov wrote:
On Mon, Jan 07, 2013 at 06:17:22PM -0600, mmogi...@miniinfo.net wrote:
On Mon, 7 Jan 2013 11:39:18
On Tue, Jan 08, 2013 at 09:41:36AM +0200, Gleb Natapov wrote:
On Mon, Jan 07, 2013 at 06:35:47PM -0600, mmogi...@miniinfo.net wrote:
On Mon, 7 Jan 2013 14:04:03 +0200, Gleb Natapov g...@redhat.com wrote:
On Wed, Dec 26, 2012 at 10:39:54PM -0700, Matthew Ogilvie wrote:
Make git_get_out
On Tue, Jan 08, 2013 at 09:31:19AM +0200, Gleb Natapov wrote:
On Mon, Jan 07, 2013 at 06:17:22PM -0600, mmogi...@miniinfo.net wrote:
On Mon, 7 Jan 2013 11:39:18 +0200, Gleb Natapov g...@redhat.com wrote:
On Wed, Dec 26, 2012 at 10:39:53PM -0700, Matthew Ogilvie wrote:
Reading the spec
No change in functionality.
Clarify that the only difference between level triggered and
edge triggered interrupts is on the leading edge.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
arch/x86/kvm/i8259.c | 28 +++-
1 file changed, 11 insertions(+), 17
-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
arch/x86/kvm/i8254.c | 6 +-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index c1d30b2..cd4ec60 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -290,8 +290,12 @@ static void
() callers more carefully
eventually, but there are lot of them, and any high-level incite
anyone can provide into them would be helpful.
See the Dec 16 patch series I sent to the qemu mailing list for
more information.
http://search.gmane.org/?query=ogilviegroup=gmane.comp.emulators.qemu
Matthew
to the CPU even
though IRQ2 had dropped again, resulting in a spurious interupt
(IRQ15) and a panicked UNIX kernel.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
arch/x86/kvm/i8259.c | 14 ++
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/arch/x86/kvm/i8259
for 23124406.pdf.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
arch/x86/kvm/i8254.c | 44 ++--
1 file changed, 34 insertions(+), 10 deletions(-)
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index cd4ec60..fd38938 100644
These are normally ifdefed out and don't matter. But if you enable
them, they ought to be correct.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/cirrus_vga.c | 4 ++--
hw/i8259.c | 3 ++-
hw/ide/cmd646.c | 5 +++--
hw/ide/via.c| 5 +++--
4 files changed, 10
No change in functionality.
Clarify that the only difference between level triggered and
edge triggered interrupts is on the leading edge.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/i8259.c | 26 +-
1 file changed, 9 insertions(+), 17 deletions
counter soon enough.
This combination should be rare enough that more complicated
solutions are not worth the effort.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/i8254.c| 24 ++--
hw/i8254_common.c | 18 ++
2 files changed, 28
(IRQ2) in the i8259 (leaving others
as-is), until such time as all these device models are improved.
-
Matthew Ogilvie (10):
fix some debug printf format strings
vl: fix -hdachs/-hda argument order parsing issues
qemu-options.hx: mention retrace= VGA option
vga: add some optional CGA
The feature was added in commit cb5a7aa8c32141bb Sep 2008.
My description is based on Better VGA retrace emulation (needed
for some DOS games/demos) from
http://www.boblycat.org/~malc/code/patches/qemu/index.html
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
qemu-options.hx | 8
For the 8259 (at least), we need to modify the entries in gpio_out
(which is pointing at PICCommonState::int_out) in-place rather than
change it to point to a totally different table. The 8259 sends its
output to int_out even if gpio_out is a different table.
Signed-off-by: Matthew Ogilvie
to fix the issue generically if possible.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
tests/Makefile | 2 +
tests/pic-test.c | 127 +++
2 files changed, 129 insertions(+)
create mode 100644 tests/pic-test.c
diff --git
-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
vl.c | 39 ++-
1 file changed, 18 insertions(+), 21 deletions(-)
diff --git a/vl.c b/vl.c
index 3ebf01f..12786f0 100644
--- a/vl.c
+++ b/vl.c
@@ -2528,8 +2528,9 @@ int main(int argc, char **argv, char **envp
in this patch).
Eventually real MDA and/or CGA support might provide an alternative to
this patch, although a hybrid approach like this patch might still
be useful in marginal cases.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/pc.h | 4
hw/vga.c| 37
been masked off even before I
masked it off?]
---
Patched qemu:
cmdRead unmask IRR=4005 mask IRR=4001 sti unmask irq14 IRR=0001 DONE
---
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
There is a risk that some other device models depend on the broken
behavior. See
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/i8259.c | 6 ++
qtest.c | 51 +++
tests/libqtest.c | 12
tests/libqtest.h | 48
4 files changed, 117
On Tue, Dec 11, 2012 at 11:20:05AM +, Jamie Lokier wrote:
Matthew Ogilvie wrote:
2. Just fix it immediately, and don't worry about migration. Squash
the last few patches together. A single missed periodic
timer tick that only happens when migrating
between versions of qemu
On Tue, Dec 11, 2012 at 06:19:56PM +0200, Gleb Natapov wrote:
On Sun, Nov 25, 2012 at 02:51:36PM -0700, Matthew Ogilvie wrote:
Still needed:
* Corresponding KVM patches. The best approach may depend
on what option is selected for qemu above.
* Note
On Mon, Dec 10, 2012 at 10:47:59AM -0600, Anthony Liguori wrote:
Jan Kiszka jan.kis...@web.de writes:
On 2012-12-10 06:14, Matthew Ogilvie wrote:
On Sun, Nov 25, 2012 at 02:51:36PM -0700, Matthew Ogilvie wrote:
This series makes a series of mostly-unrelated fixes to allow
running an old
On Sun, Nov 25, 2012 at 02:51:36PM -0700, Matthew Ogilvie wrote:
This series makes a series of mostly-unrelated fixes to allow
running an old Microport UNIX (ca 1987) guest under qemu.
Changes since version 6:
* Patches 1 through 6 haven't changed, other than resolving
a couple
-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
vl.c | 39 ++-
1 file changed, 18 insertions(+), 21 deletions(-)
diff --git a/vl.c b/vl.c
index c8e9c78..c6c7d95 100644
--- a/vl.c
+++ b/vl.c
@@ -2533,8 +2533,9 @@ int main(int argc, char **argv, char **envp
The feature was added in commit cb5a7aa8c32141bb Sep 2008.
My description is based on Better VGA retrace emulation (needed
for some DOS games/demos) from
http://www.boblycat.org/~malc/code/patches/qemu/index.html
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
qemu-options.hx | 8
in this patch).
Eventually real MDA and/or CGA support might provide an alternative to
this patch, although a hybrid approach like this patch might still
be useful in marginal cases.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/pc.h | 4
hw/vga.c| 37
.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
Alternatives:
An alternative for mode 2 might involve tweaking
pit_get_next_transition_time() to create an extra pseudo-transition
at the same clock tick that will eventually have the real transition
(so it has 3 transitions per period
in with earlier patches instead of kept separate.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/i8254.c| 106 +++---
hw/i8254_common.c | 58 --
hw/i8259.c| 19 +-
3 files changed, 20
...
Matthew Ogilvie (10):
fix some debug printf format strings
vl: fix -hdachs/-hda argument order parsing issues
qemu-options.hx: mention retrace= VGA option
vga: add some optional CGA compatibility hacks
i8259: fix so that dropping IRQ level always clears the interrupt
request
i8259
been masked off even before I
masked it off?]
---
Patched qemu:
cmdRead unmask IRR=4005 mask IRR=4001 sti unmask irq14 IRR=0001 DONE
---
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/i8259.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/i8259.c b/hw
Someday it should be fixed properly, but doing so may
break migration. So go with an incremental approach instead.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/i8259.c | 19 ++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/hw/i8259.c b/hw
There may be risk of problems with migration if these are just
fixed blindly, but at least comment what it ought to be changed to.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/i8254.c| 31 ++-
hw/i8254_common.c | 40
These are normally ifdefed out and don't matter. But if you enable
them, they ought to be correct.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/cirrus_vga.c | 4 ++--
hw/i8259.c | 3 ++-
hw/ide/cmd646.c | 5 +++--
hw/ide/via.c| 5 +++--
4 files changed, 10
No change in functionality.
Clarify that the only difference between level triggered and
edge triggered interrupts is on the leading edge.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/i8259.c | 26 +-
1 file changed, 9 insertions(+), 17 deletions
On Mon, Nov 19, 2012 at 04:28:31PM +0100, BALATON Zoltan wrote:
On Sun, 9 Sep 2012, Matthew Ogilvie wrote:
Intel's definition of edge triggered means: asserted with a
low-to-high transition at the time an interrupt is registered and
then kept high until the interrupt is served via one
-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
vl.c | 39 ++-
1 file changed, 18 insertions(+), 21 deletions(-)
diff --git a/vl.c b/vl.c
index 8d305ca..e1d2f7e 100644
--- a/vl.c
+++ b/vl.c
@@ -2362,8 +2362,9 @@ int main(int argc, char **argv, char **envp
in this patch).
Eventually real MDA and/or CGA support might provide an alternative to
this patch, although a hybrid approach like this patch might still
be useful in marginal cases.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/pc.h | 4
hw/vga.c| 37
These are normally ifdefed out and don't matter. But if you enable
them, they ought to be correct.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/cirrus_vga.c | 4 ++--
hw/i8259.c | 3 ++-
hw/ide/cmd646.c | 5 +++--
hw/ide/via.c| 5 +++--
4 files changed, 10
been masked off even before I
masked it off?]
---
Patched qemu:
cmdRead unmask IRR=4005 mask IRR=4001 sti unmask irq14 IRR=0001 DONE
---
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/i8259.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/i8259.c b/hw
be an issue for
some migration cases.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
There are still some things not quite modeled correctly.
See the cover letter of this patch series for details, and
the FIXME comments added to the code.
hw/i8254.c| 24
No change in functionality.
Clarify that the only difference between level triggered and
edge triggered interrupts is on the leading edge.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/i8259.c | 26 +-
1 file changed, 9 insertions(+), 17 deletions
of IRQ0=low, which might cause more
intermitment/confusing bugs than just always modeling it as
short-duration.
Perhaps if some rare guest cares about IRQ0=low duration,
then user could just disable the in-kernel IRQ chip for that guest?
-
Matthew Ogilvie (8):
fix some debug
The feature was added in commit cb5a7aa8c32141bb Sep 2008.
My description is based on Better VGA retrace emulation (needed
for some DOS games/demos) from
http://www.boblycat.org/~malc/code/patches/qemu/index.html
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
qemu-options.hx | 8
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
It is not at all clear that this is the best way to handle this.
See the detailed notes in the cover letter of this patch series.
UPDATE: Also, some fixes moved the leading edge by 1 CLK
tick (CLK ticks at about 1.1 MHz), and some
On Wed, Sep 12, 2012 at 10:57:57AM +0200, Jan Kiszka wrote:
On 2012-09-12 10:51, Avi Kivity wrote:
On 09/12/2012 11:48 AM, Jan Kiszka wrote:
On 2012-09-12 10:01, Avi Kivity wrote:
On 09/10/2012 04:29 AM, Matthew Ogilvie wrote:
Intel's definition of edge triggered means: asserted
On Mon, Sep 10, 2012 at 11:09:27AM +0200, Jan Kiszka wrote:
On 2012-09-10 10:56, Avi Kivity wrote:
On 09/10/2012 04:27 AM, Matthew Ogilvie wrote:
Intel's definition of edge triggered means: asserted with a
low-to-high transition at the time an interrupt is registered and
then kept high
On Tue, Sep 11, 2012 at 01:49:51AM +0100, Maciej W. Rozycki wrote:
On Sun, 9 Sep 2012, Matthew Ogilvie wrote:
This bug manifested itself when the guest was Microport UNIX
System V/386 v2.1 (ca. 1987), because it would sometimes mask
off IRQ14 in the slave IMR after it had already been
:
* Two KVM (Linux kernel) patches that do roughly the same thing as
patches 5 and 6, only for the in-kernel PIC.
* A patch for the kvm-unit-tests project that adds a test case
to demonstrate the trailing edge behavior.
Matthew Ogilvie (6):
fix some debug printf format strings
These are normally ifdefed out and don't matter. But if you enable
them, they ought to be correct.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/cirrus_vga.c | 4 ++--
hw/i8259.c | 3 ++-
hw/ide/cmd646.c | 5 +++--
hw/ide/via.c| 5 +++--
4 files changed, 10
This tests how the master i8259 handles a falling IRQ2 cascade
interrupt when the original interrupt is masked off in the slave's
IMR register. It should cancel the interrupt, and not deliver
anything to the CPU until it is unmasked again.
Signed-off-by: Matthew Ogilvie mmogilvi_q
No change in functionality.
Clarify that the only difference between level triggered and
edge triggered interrupts is on the leading edge.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/i8259.c | 26 +-
1 file changed, 9 insertions(+), 17 deletions
No change in functionality.
Clarify that the only difference between level triggered and
edge triggered interrupts is on the leading edge.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
arch/x86/kvm/i8259.c | 28 +++-
1 file changed, 11 insertions(+), 17
The feature was added in commit cb5a7aa8c32141bb Sep 2008.
My description is based on Better VGA retrace emulation (needed
for some DOS games/demos) from
http://www.boblycat.org/~malc/code/patches/qemu/index.html
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
qemu-options.hx | 8
even though
IRQ2 had dropped again, resulting in a spurious interupt
(IRQ15) and a panicked UNIX kernel.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
There has been some discussions about this on the qemu mailing
list; for example see
http://www.mail-archive.com/qemu-devel@nongnu.org
even though
IRQ2 had dropped again, resulting in a spurious interupt
(IRQ15) and a panicked kernel.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
If you missed the previous thread about this, see
http://www.mail-archive.com/qemu-devel@nongnu.org/msg129071.html
hw/i8259.c | 1 +
1
in this patch).
Eventually real MDA and/or CGA support might provide an alternative to
this patch, although a hybrid approach like this patch might still
be useful in marginal cases.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/pc.h | 4
hw/vga.c| 37
-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
vl.c | 39 ++-
1 file changed, 18 insertions(+), 21 deletions(-)
diff --git a/vl.c b/vl.c
index 7c577fa..febfd62 100644
--- a/vl.c
+++ b/vl.c
@@ -2352,8 +2352,9 @@ int main(int argc, char **argv, char **envp
;
}
}
pic_update_irq(s);
}
Perhaps it would be worth it to swap around the ifs a little bit
to avoid the (!level) duplication, and clarify that the only difference
is in the low to high transition?
- Matthew Ogilvie
(and not
reverted), and is no longer included with this series.
Matthew Ogilvie (5):
fix some debug printf format strings
vl: fix -hdachs/-hda argument order parsing issues
qemu-options.hx: mention retrace= VGA option
vga: add some optional CGA compatibility hacks
i8259: fix dynamically
-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
vl.c | 39 ++-
1 file changed, 18 insertions(+), 21 deletions(-)
diff --git a/vl.c b/vl.c
index 7c577fa..febfd62 100644
--- a/vl.c
+++ b/vl.c
@@ -2352,8 +2352,9 @@ int main(int argc, char **argv, char **envp
These are normally ifdefed out and don't matter. But if you enable
them, they ought to be correct.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
Changes since v2: The v3 tweak (adding back a dropped 02) has been
squashed in.
hw/cirrus_vga.c | 4 ++--
hw/i8259.c | 3
in this patch).
Eventually real MDA and/or CGA support might provide an alternative to
this patch, although a hybrid approach like this patch might still
be useful in marginal cases.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
Change since v2: The v3 tweak (fix conditions for palette
The feature was added in commit cb5a7aa8c32141bb Sep 2008.
My description is based on Better VGA retrace emulation (needed
for some DOS games/demos) from
http://www.boblycat.org/~malc/code/patches/qemu/index.html
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
qemu-options.hx | 8
delivers a
spurious interrupt (IRQ15) instead when running the test program.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
I've written a test program (in the form of a floppy disk boot sector)
that demonstrates that qemu's emulation of IRQ2 propagation from the
slave i8259
On Fri, Aug 24, 2012 at 07:40:36AM +0200, Jan Kiszka wrote:
On 2012-08-23 08:24, Matthew Ogilvie wrote:
This patch provides a way to optionally suppress spurious interrupts,
[snip]
I'm not sure why it only sporadically hits this sequence of events.
There doesn't seem to be other IRQs
a version 4 with version
3 squashed in later.
Overall, the first four patches of version 2 seem more like simple
bug fixes than the last two. Maybe keep at least the first 4 (possilby
with just the first patch of version 3 as well)?
Matthew Ogilvie (3):
debug printf (cirrus_vga): fixup unintended
I unintentionally dropped an 02 from one of the format strings
in commit 145c7c880ff520a9, as noted by Andreas Färber afaer...@suse.de.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
The 02 in debug code seems extremely low priority, but on the other
hand, there is no good reason
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
On Fri, Aug 24, 2012 at 07:40:36AM +0200, Jan Kiszka wrote:
Has to mention or even actively warn that it doesn't work with KVM and
its in-kernel irqchip (as that PIC model lacks your hack).
qemu-options.hx | 3 ++-
1 file changed
In commit 482f7bf86b43af9f, I mistakenly inverted the logic
I intended for ar_flip_flop. I intended to allow the GMODE_BLANK
case as soon as any palette register was modified.
Also include minor tweak to documentation about how to list
multiple hacks on the command line.
Signed-off-by: Matthew
These are normally ifdefed out and don't matter. But if you enable
them, they ought to be correct.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
This version of the patch adds i8259.c.
An alternative approach might be to eliminate these printf's,
and/or replace them with trace
in panic like break splintpanic2.
I could examine registers (info registers or
info all-registers) and memory, but the call stack
tended to be truncated early.
==
Matthew Ogilvie (6):
fix some debug printf format strings
target-i386/translate.c: mov to/from crN/drN
/2005-06/msg00243.html
(I don't have this system to test.)
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
Note: checkpatches.pl gives an error about initializing the global
int no_spurious_interrupt_hack = 0;, even though existing lines
near it are doing the same thing. Should I
-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
Version 1 of this patch had the confusing subject
Re: [Qemu-devel] [PATCH 0/3] Attempting to run Microport UNIX (ca 1987).
This version reworks things a little to avoid duplicated code between
the -hda and just a file cases, based on Markus
CPU's (at least), but does not run in qemu without
this patch.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
This version of the patch tweaks some of the comments to refer to
AMD's documentation, based on malc av1...@comtv.ru's response to
version 1. It is functionally identical
in this patch).
Eventually real MDA and/or CGA support might provide an alternative to
this patch, although a hybrid approach like this patch might still
be useful in marginal cases.
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
Note: checkpatches.pl gives an error about initializing
The feature was added in commit cb5a7aa8c32141bb Sep 2008.
My description is based on Better VGA retrace emulation (needed
for some DOS games/demos) from
http://www.boblycat.org/~malc/code/patches/qemu/index.html
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
This is the first
On Sat, Jul 28, 2012 at 08:33:54AM +0200, Markus Armbruster wrote:
Matthew Ogilvie mmogilvi_q...@miniinfo.net writes:
[...]
1. It doesn't seem to recognize the hard drive geometry, even
if I use -hdachs and keep it carefully inside ancient
limitations. Note that at the time
this system for themselves,
contact me and I can send you at least the first (bootable)
installation floppy image.
--
Matthew Ogilvie (3):
fix debug printf 64bit format strings
target-i386/translate.c: mov to/from crN/drN: ignore mod bits
HACKS to make vga text mode work with old Microport UNIX
Signed-off-by: Matthew Ogilvie mmogilvi_q...@miniinfo.net
---
hw/cirrus_vga.c | 4 ++--
hw/ide/cmd646.c | 5 +++--
hw/ide/via.c| 5 +++--
3 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/hw/cirrus_vga.c b/hw/cirrus_vga.c
index 623dd68..24ddea6 100644
--- a/hw/cirrus_vga.c
+++ b
Background:
I don't really think it is appropriate to include this patch in it's
current form, but I'm posting it to illustrate some of the obscure
things that Microport UNIX System V/386 v 2.1 (ca 1987) is trying
to do to the video card.
On real hardware, this version of UNIX
and assumes they are 1's, rather
than trigger an illegal instruction if they aren't.
Also fixed: The dissassembled kernel also accesses debug
registers in a similar way, although other problems prevent
me verifiing that those instructions are reachable in UNIX.
Signed-off-by: Matthew Ogilvie mmogilvi_q
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