Commit Graph

572 Commits

Author SHA1 Message Date
Paul Brook
1ad2134f91 Hardware convenience library
The only target dependency for most hardware is sizeof(target_phys_addr_t).
Build these files into a convenience library, and use that instead of
building for every target.

Remove and poison various target specific macros to avoid bogus target
dependencies creeping back in.

Big/Little endian is not handled because devices should not know or care
about this to start with.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-19 16:17:58 +01:00
Nathan Froyd
c29b735c50 target-ppc: expose cpu capability flags
Do this so other pieces of code can make decisions based on the
capabilities of the CPU we're emulating.

Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: malc <av1474@comtv.ru>
2009-05-16 01:36:08 +04:00
Paul Brook
5561650587 Include assert.h from qemu-common.h
Include assert.h from qemu-common.h and remove other direct uses.
cpu-all.h still need to include it because of the dyngen-exec.h hacks

Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-13 20:54:26 +01:00
malc
1481e16abb Fix typo that leads to out of bounds array access on big endian systems 2009-05-13 15:18:48 +04:00
Tristan Gingold
2d3eb7bfd9 Fix powerpc 604 reset vector
According to 604eUM_book (see 8.3.3 Reset inputs p8-54), the IP bit is set
for hreset and the vector is at offset 0x100 from the exception prefix.

No difference in this area between 604 and 604e.

Signed-off-by: Tristan Gingold <gingold@adacore.com>
2009-04-28 18:07:01 +00:00
Blue Swirl
fc1c67bc2a Fix PPC reset 2009-04-28 18:00:30 +00:00
aliguori
0bf46a40a1 qemu: introduce qemu_init_vcpu (Marcelo Tosatti)
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7242 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-24 18:03:41 +00:00
aliguori
6a4955a813 qemu: per-arch cpu_has_work (Marcelo Tosatti)
Blue Swirl: fix Sparc32 breakage

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7238 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-24 18:03:20 +00:00
aurel32
69a218fc84 target-ppc: mark a few helpers TCG_CALL_CONST and/or TCG_CALL_PURE
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7129 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-16 12:57:58 +00:00
blueswir1
2dc766dafc Fix ppc-softmmu warnings on OpenBSD host
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7099 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-13 16:06:19 +00:00
aurel32
1b530a6dfc Add new command line option -singlestep for tcg single stepping.
This replaces a compile time option for some targets and adds
this feature to targets which did not have a compile time option.

Add monitor command to enable or disable single step mode.

Modify monitor command "info status" to display single step mode.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7004 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-05 20:08:59 +00:00
aurel32
bf1752ef58 target-ppc: Explain why the whole TLB is flushed on SR write
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6947 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-29 13:36:32 +00:00
aurel32
af4b6c54c1 target-ppc: avoid nop to override next instruction
While searching PC, always store the pc of a new instruction.
Instructions that didn't generate tcg code (such as nop) prevented the
next one to be referenced.

Based on patch for target-alpha, r6930.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6931 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-29 01:18:03 +00:00
blueswir1
7f70c93716 Make the ELF loader aware of backwards compatibility
Most 64 bit architectures I'm aware of support running 32 bit code
of the same architecture as well.

So x86_64 can run i386 code easily and ppc64 can run ppc code.

Unfortunately, the current checks are pretty strict. So you can only
load e.g. an x86_64 elf binary on qemu-system-x86_64, but no i386 one.

This can get really annoying. I first encountered this issue with
my multiboot patch, where qemu-system-x86_64 was unable to load an
i386 elf binary because the elf loader rejected it.

The same thing happened again on PPC64 now. The firmware we're loading
is a PPC32 elf binary, as it's shared with PPC32. But the platform is
PPC64.

Right now there is a hack for this in the ppc cpu.h definition, that
simply sets the type to PPC32 in system emulation mode. While that
works fine for the firmware, it's no good if you also want to load a
PPC64 kernel with -kernel.

So in order to solve this mess, I figured the easiest way is to make
the elf loader aware of platforms that are backwards compatible. For
now I was only sure that x86_64 does i386 and ppc64 does ppc32, but
maybe there are other combinations too.

This patch is a prerequisite for having a working -kernel option on
PPC64.

Signed-off-by: Alexander Graf <alex@csgraf.de>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6855 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-13 21:16:24 +00:00
aurel32
fa3966a3dc target-ppc: use the new bswap* TCG ops
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6835 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-13 09:35:34 +00:00
aurel32
66896cb803 tcg: rename bswap_i32/i64 functions
Rename bswap_i32 into bswap32_i32 and bswap_i64 into bswap64_i64

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6829 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-13 09:34:48 +00:00
aurel32
515e2f7efe target-ppc: fix commit r6789
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6804 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-10 19:37:28 +00:00
aurel32
651721b2a5 targe-ppc: optimize mfcr and mtcrf
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6793 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-09 18:50:24 +00:00
aurel32
69bd582091 target-ppc: free a tcg temp variable
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6790 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-09 06:27:24 +00:00
aurel32
d34defbc21 target-ppc: add support for reading/writing spefscr
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6789 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-09 06:27:14 +00:00
aurel32
70976a7926 Fix off-by-one errors for Altivec and SPE registers
Altivec and SPE both have 34 registers in their register sets, not 35
with a missing register 32.

GDB would ask for register 32 of the Altivec (resp. SPE) registers and
the code would claim it had zero width.  The QEMU GDB stub code would
then return an E14 to GDB, which would complain about not being sure
whether p packets were supported or not.

Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6769 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07 22:00:49 +00:00
blueswir1
9485593725 Disable BAT for 970
The 970 doesn't know BAT, so let's not search BATs there.
This was only in as a hack for OpenHackWare so it would
work on PPC64.

Signed-off-by: Alexander Graf <alex@csgraf.de>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6759 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07 20:58:30 +00:00
aurel32
0497d2f4e4 Fix mfcr on ppc64-softmmu
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6758 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07 20:57:47 +00:00
blueswir1
8eee0af947 Keep SLB in-CPU
Real 970 CPUs have the SLB not memory backed, but inside the CPU.
This breaks bridge mode for 970 for now, but at least keeps us from
overwriting physical addresses 0x0 - 0x300, rendering our interrupt
handlers useless.

I put in a stub for bridge mode operation that could be enabled
easily, but for now it's safer to leave that off I guess (970fx doesn't
have bridge mode AFAIK).

Signed-off-by: Alexander Graf <alex@csgraf.de>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6757 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07 20:57:42 +00:00
blueswir1
29c8ca6f2e Fix NX bit
ctx->nx only got ORed, but never reset. So when one page in the
lifetime of the VM was ever NX, all later pages were too.

Signed-off-by: Alexander Graf <alex@csgraf.de>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6755 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07 20:57:01 +00:00
blueswir1
2ada0ed785 Fix RFI(d)
The current implementation masks some MSR bits from SRR1 as it is
given on rfi(d). This looks pretty wrong and breaks Altivec.

Signed-off-by: Alexander Graf <alex@csgraf.de>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6754 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07 20:56:21 +00:00
blueswir1
4911012d26 Implement mtfsf.L encoding
Mtfsf can have the L bit set, so all the register contents get stored
in FPSCR. Linux uses it, so let's implement it.

Signed-off-by: Alexander Graf <alex@csgraf.de>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6753 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07 20:55:31 +00:00
blueswir1
6ce0ca1204 Enable 64bit mode on interrupts
Real 970s enable MSR_SF on all interrupts. The current code didn't do
this until now, so let's activate it!

Signed-off-by: Alexander Graf <alex@csgraf.de>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6752 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07 20:54:59 +00:00
blueswir1
4e98d8cf0a Nop some SPRs on 970fx
Linux tries to access some SPRs on PPC64 boot. Let's just ignore those
for the 970fx for now to make it happy.

Signed-off-by: Alexander Graf <alex@csgraf.de>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6751 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07 20:54:03 +00:00
blueswir1
bf14b1cef1 Implment tlbiel
Linux uses tlbiel to flush TLB entries in PPC64 mode. This special TLB
flush opcode only flushes an entry for the CPU it runs on, not across
all CPUs in the system.

Signed-off-by: Alexander Graf <alex@csgraf.de>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6749 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07 20:52:22 +00:00
blueswir1
5b5aba4f14 Implement large pages
The current SLB/PTE code does not support large pages, which are
required by Linux, as it boots up with the kernel regions up as large.

This patch implements large page support, so we can run Linux.

Signed-off-by: Alexander Graf <alex@csgraf.de>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6748 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07 20:51:18 +00:00
blueswir1
f6b868fc58 Implement slbmte
In order to modify SLB entries on recent PPC64 machines, the slbmte
instruction is used.

This patch implements the slbmte instruction and makes the "bridge"
mode code use the slb set functions, so we can move the SLB into
the CPU struct later.

This is required for Linux to run on PPC64.

Signed-off-by: Alexander Graf <alex@csgraf.de>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6747 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07 20:50:01 +00:00
blueswir1
50773fd23d Sparse fixes: add extern to ELF opcode tables to avoid warnings
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6740 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07 15:59:09 +00:00
pbrook
c276471991 The _exit syscall is used for both thread termination in NPTL applications,
and process termination in legacy applications.  Try to guess which we want
based on the presence of multiple threads.

Also implement locking when modifying the CPU list.


Signed-off-by: Paul Brook <paul@codesourcery.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6735 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07 15:24:59 +00:00
aurel32
0cfe11ea5f target-ppc: improve mfcr/mtcrf
- use ctz32 instead of ffs - 1
- small optimisation of mtcrf
- add the name of both opcodes

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6669 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-03 06:12:14 +00:00
malc
8dd640e49d Fix mtcrf/mfcr
Noticed by Alexander Graf

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6667 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-02 22:39:39 +00:00
aurel32
1db09b847e kvm/powerpc: Add MPC8544DS board support
This patch add an emulation of MPC8544DS board.
It can work on All E500 platforms.

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Acked-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6663 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-02 16:42:42 +00:00
aurel32
9fdc60bf55 kvm/powerpc: Add irq support for E500 core
Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6662 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-02 16:42:32 +00:00
blueswir1
2adab7d6b5 Implement HIOR
A real 970 CPU starts up with HIOR=0xfff00000 and triggers a reset
exception, basically ending up at IP 0xfff001000.

Later on this HIOR has to be set to 0 by the firmware in order to
enable the OS to handle interrupts on its own.

This patch maps HIOR to exec_prefix, which does the same thing
internally in qemu already.

It replaces the previous patch that changed the 970 initialization
constants, as this is the clean solution to the same problem.

Signed-off-by: Alexander Graf <alex@csgraf.de>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6656 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-28 18:39:42 +00:00
blueswir1
a457e7ee3d Fix typo in gen_qemu_ld32s
When the CPU is in little endian mode, it should load values from RAM
in byte swapped manner. This check is in all the ld and st functions,
but misspelled in gen_qemu_ld32s.

This patch fixes the misspelling and makes ppc64 Linux happier.

Signed-off-by: Alexander Graf <alex@csgraf.de>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6654 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-28 08:25:29 +00:00
blueswir1
07c485ce78 Turn MMU off on reset
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6637 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-21 17:29:14 +00:00
blueswir1
5518f3a636 Fix branch debugging
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6629 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-19 20:17:09 +00:00
aurel32
bd5ea51398 target-ppc: Model e500v{1,2} CPUs more accurately
The e500v1 chips only have single-precision floating point; don't say we
support the double-precision floating-point instructions on such chips.
Also add an e500v1 -cpu argument for a generic e500v1.

Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6576 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-09 16:50:00 +00:00
aurel32
40569b7edc target-ppc: Model SPE floating-point instructions more accurately
Single-precision and double-precision floating-point instructions should
be separated into their own categories, since some chips only support
single-precision instructions.

Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6575 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-09 16:49:50 +00:00
aurel32
071fc3b1cd target-ppc: Add vrsqrtefp instruction
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6574 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-09 16:49:40 +00:00
aurel32
bdfbac3512 target-ppc: Add vrefp instruction
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6573 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-09 16:49:29 +00:00
aurel32
875b31db7f target-ppc: Add vct{u,s}xs instructions
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6572 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-09 16:49:20 +00:00
aurel32
819ca12127 target-ppc: Add vcmp{eq, ge, gt, b}fp{, .} instructions
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6571 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-09 16:49:10 +00:00
aurel32
35cf7c7e18 target-ppc: Add vmaddfp and vnmsubfp instructions
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6570 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-09 16:48:59 +00:00
aurel32
56fdd213ef target-ppc: Add v{add,sub}fp instructions
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6569 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-09 16:48:51 +00:00