Peter Maydell [Tue, 25 Aug 2015 14:45:07 +0000 (15:45 +0100)]
target-arm: Implement missing AMAIR registers
The AMAIR registers are for providing auxiliary implementation
defined memory attributes. We already implemented a RAZ/WI
AMAIR_EL1; add the EL2 and EL3 versions for consistency.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id:
1438281398-18746-3-git-send-email-peter.maydell@linaro.org
Peter Maydell [Tue, 25 Aug 2015 14:45:07 +0000 (15:45 +0100)]
target-arm: Add missing MAIR_EL3 and TPIDR_EL3 registers
Add the AArch64 registers MAIR_EL3 and TPIDR_EL3, which are the only
two which we had implemented the 32-bit Secure equivalents of but
not the 64-bit Secure versions.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id:
1438281398-18746-2-git-send-email-peter.maydell@linaro.org
Alistair Francis [Tue, 25 Aug 2015 14:45:07 +0000 (15:45 +0100)]
MAINTAINERS: Add ZynqMP to MAINTAINERS file
Add the Xilinx ZynqMP SoC and EP108 machine to the maintainers
file.
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id:
fed078103a0b02cfb3adadbe8e80e4420d554505.
1436486024.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Alistair Francis [Tue, 25 Aug 2015 14:45:06 +0000 (15:45 +0100)]
MAINTAINERS: Update Xilinx Maintainership
Peter C is leaving Xilinx, so update the maintainer list
to point to Alistair and Edgar from Xilinx and Peter's
personal email address.
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id:
54b4c070452bac05aa3a9c1d75899bc097fef831.
1436486024.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Alistair Francis [Tue, 25 Aug 2015 14:45:06 +0000 (15:45 +0100)]
xlnx-zynqmp: Connect the four OCM banks
The Xilinx EP108 has four separate OCM banks which are located
adjacent to each other. This patch adds the four banks to
the ZynqMP SoC.
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id:
afa6ba31163a5d541a0bef4b0dc11f2597e0c495.
1436813543.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 25 Aug 2015 12:34:57 +0000 (13:34 +0100)]
Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-
20150824' into staging
queued tcg patches
# gpg: Signature made Mon 24 Aug 2015 19:37:15 BST using RSA key ID
4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg: aka "Richard Henderson <rth@redhat.com>"
# gpg: aka "Richard Henderson <rth@twiddle.net>"
* remotes/rth/tags/pull-tcg-
20150824:
linux-user: remove useless macros GUEST_BASE and RESERVED_VA
linux-user: remove --enable-guest-base/--disable-guest-base
tcg/aarch64: Use softmmu fast path for unaligned accesses
tcg/s390: Use softmmu fast path for unaligned accesses
tcg/ppc: Improve unaligned load/store handling on 64-bit backend
tcg/i386: use softmmu fast path for unaligned accesses
tcg: Remove tcg_gen_trunc_i64_i32
tcg: Split trunc_shr_i32 opcode into extr[lh]_i64_i32
tcg: update README about size changing ops
tcg/optimize: add optimizations for ext_i32_i64 and extu_i32_i64 ops
tcg: implement real ext_i32_i64 and extu_i32_i64 ops
tcg: don't abuse TCG type in tcg_gen_trunc_shr_i64_i32
tcg: rename trunc_shr_i32 into trunc_shr_i64_i32
tcg/optimize: allow constant to have copies
tcg/optimize: track const/copy status separately
tcg/optimize: add temp_is_const and temp_is_copy functions
tcg/optimize: optimize temps tracking
tcg/optimize: fix constant signedness
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Laurent Vivier [Mon, 24 Aug 2015 12:53:54 +0000 (14:53 +0200)]
linux-user: remove useless macros GUEST_BASE and RESERVED_VA
As we have removed CONFIG_USE_GUEST_BASE, we always use a guest base
and the macros GUEST_BASE and RESERVED_VA become useless: replace
them by their values.
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <
1440420834-8388-1-git-send-email-laurent@vivier.eu>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Laurent Vivier [Sun, 23 Aug 2015 23:42:07 +0000 (01:42 +0200)]
linux-user: remove --enable-guest-base/--disable-guest-base
All tcg host architectures now support the guest base and as
there is no real performance lost, it can be always enabled.
Anyway, guest base use can be disabled lively by setting guest
base to 0.
CONFIG_USE_GUEST_BASE is defined as (USE_GUEST_BASE && USER_ONLY),
it should have to be replaced by CONFIG_USER_ONLY in non CONFIG_USER_ONLY
parts, but as some other parts are using !CONFIG_SOFTMMU I have chosen to
use !CONFIG_SOFTMMU instead.
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <
1440373328-9788-2-git-send-email-laurent@vivier.eu>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Mon, 17 Aug 2015 19:18:05 +0000 (12:18 -0700)]
tcg/aarch64: Use softmmu fast path for unaligned accesses
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Thu, 23 Jul 2015 20:32:35 +0000 (13:32 -0700)]
tcg/s390: Use softmmu fast path for unaligned accesses
Signed-off-by: Richard Henderson <rth@twiddle.net>
Benjamin Herrenschmidt [Tue, 21 Jul 2015 05:19:38 +0000 (15:19 +1000)]
tcg/ppc: Improve unaligned load/store handling on 64-bit backend
Currently, we get to the slow path for any unaligned access in the
backend, because we effectively preserve the bottom address bits
below the alignment requirement when comparing with the TLB entry,
so any non-0 bit there will cause the compare to fail.
For the same number of instructions, we can instead add the access
size - 1 to the address and stick to clearing all the bottom bits.
That means that normal unaligned accesses will not fallback (the HW
will handle them fine). Only when crossing a page boundary well we
end up having a mismatch because we'll end up pointing to the next
page which cannot possibly be in that same TLB entry.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Message-Id: <
1437455978.5809.2.camel@kernel.crashing.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Aurelien Jarno [Thu, 9 Jul 2015 18:39:57 +0000 (20:39 +0200)]
tcg/i386: use softmmu fast path for unaligned accesses
Softmmu unaligned load/stores currently goes through through the slow
path for two reasons:
- to support unaligned access on host with strict alignement
- to correctly handle accesses crossing pages
x86 is only concerned by the second reason. Unaligned accesses are
avoided by compilers, but are not uncommon. We therefore would like
to see them going through the fast path, if they don't cross pages.
For that we can use the fact that two adjacent TLB entries can't contain
the same page. Therefore accessing the TLB entry corresponding to the
first byte, but comparing its content to page address of the last byte
ensures that we don't cross pages. We can do this check without adding
more instructions in the TLB code (but increasing its length by one
byte) by using the LEA instruction to combine the existing move with the
size addition.
On an x86-64 host, this gives a 3% boot time improvement for a powerpc
guest and 4% for an x86-64 guest.
[rth: Tidied calculation of the offset mask]
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <
1436467197-2183-1-git-send-email-aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Fri, 24 Jul 2015 18:49:53 +0000 (11:49 -0700)]
tcg: Remove tcg_gen_trunc_i64_i32
Replacing it with tcg_gen_extrl_i64_i32.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Fri, 24 Jul 2015 14:16:00 +0000 (07:16 -0700)]
tcg: Split trunc_shr_i32 opcode into extr[lh]_i64_i32
Rather than allow arbitrary shift+trunc, only concern ourselves
with low and high parts. This is all that was being used anyway.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Aurelien Jarno [Mon, 27 Jul 2015 10:41:45 +0000 (12:41 +0200)]
tcg: update README about size changing ops
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Aurelien Jarno [Mon, 27 Jul 2015 10:41:45 +0000 (12:41 +0200)]
tcg/optimize: add optimizations for ext_i32_i64 and extu_i32_i64 ops
They behave the same as ext32s_i64 and ext32u_i64 from the constant
folding and zero propagation point of view, except that they can't
be replaced by a mov, so we don't compute the affected value.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Aurelien Jarno [Mon, 27 Jul 2015 10:41:45 +0000 (12:41 +0200)]
tcg: implement real ext_i32_i64 and extu_i32_i64 ops
Implement real ext_i32_i64 and extu_i32_i64 ops. They ensure that a
32-bit value is always converted to a 64-bit value and not propagated
through the register allocator or the optimizer.
Cc: Andrzej Zaborowski <balrogg@gmail.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Stefan Weil <sw@weilnetz.de>
Acked-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Aurelien Jarno [Mon, 27 Jul 2015 10:41:45 +0000 (12:41 +0200)]
tcg: don't abuse TCG type in tcg_gen_trunc_shr_i64_i32
The tcg_gen_trunc_shr_i64_i32 function takes a 64-bit argument and
returns a 32-bit value. Directly call tcg_gen_op3 with the correct
types instead of calling tcg_gen_op3i_i32 and abusing the TCG types.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Aurelien Jarno [Mon, 27 Jul 2015 10:41:45 +0000 (12:41 +0200)]
tcg: rename trunc_shr_i32 into trunc_shr_i64_i32
The op is sometimes named trunc_shr_i32 and sometimes trunc_shr_i64_i32,
and the name in the README doesn't match the name offered to the
frontends.
Always use the long name to make it clear it is a size changing op.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Aurelien Jarno [Mon, 27 Jul 2015 10:41:44 +0000 (12:41 +0200)]
tcg/optimize: allow constant to have copies
Now that copies and constants are tracked separately, we can allow
constant to have copies, deferring the choice to use a register or a
constant to the register allocation pass. This prevent this kind of
regular constant reloading:
-OUT: [size=338]
+OUT: [size=298]
mov -0x4(%r14),%ebp
test %ebp,%ebp
jne 0x7ffbe9cb0ed6
mov $0x40002219f8,%rbp
mov %rbp,(%r14)
- mov $0x40002219f8,%rbp
mov $0x4000221a20,%rbx
mov %rbp,(%rbx)
mov $0x4000000000,%rbp
mov %rbp,(%r14)
- mov $0x4000000000,%rbp
mov $0x4000221d38,%rbx
mov %rbp,(%rbx)
mov $0x40002221a8,%rbp
mov %rbp,(%r14)
- mov $0x40002221a8,%rbp
mov $0x4000221d40,%rbx
mov %rbp,(%rbx)
mov $0x4000019170,%rbp
mov %rbp,(%r14)
- mov $0x4000019170,%rbp
mov $0x4000221d48,%rbx
mov %rbp,(%rbx)
mov $0x40000049ee,%rbp
mov %rbp,0x80(%r14)
mov %r14,%rdi
callq 0x7ffbe99924d0
mov $0x4000001680,%rbp
mov %rbp,0x30(%r14)
mov 0x10(%r14),%rbp
mov $0x4000001680,%rbp
mov %rbp,0x30(%r14)
mov 0x10(%r14),%rbp
shl $0x20,%rbp
mov (%r14),%rbx
mov %ebx,%ebx
mov %rbx,(%r14)
or %rbx,%rbp
mov %rbp,0x10(%r14)
mov %rbp,0x90(%r14)
mov 0x60(%r14),%rbx
mov %rbx,0x38(%r14)
mov 0x28(%r14),%rbx
mov $0x4000220e60,%r12
mov %rbx,(%r12)
mov $0x40002219c8,%rbx
mov %rbp,(%rbx)
mov 0x20(%r14),%rbp
sub $0x8,%rbp
mov $0x4000004a16,%rbx
mov %rbx,0x0(%rbp)
mov %rbp,0x20(%r14)
mov $0x19,%ebp
mov %ebp,0xa8(%r14)
mov $0x4000015110,%rbp
mov %rbp,0x80(%r14)
xor %eax,%eax
jmpq 0x7ffbebcae426
lea -0x5f6d72a(%rip),%rax # 0x7ffbe3d437b3
jmpq 0x7ffbebcae426
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Aurelien Jarno [Mon, 27 Jul 2015 10:41:44 +0000 (12:41 +0200)]
tcg/optimize: track const/copy status separately
Instead of using an enum which could be either a copy or a const, track
them separately. This will be used in the next patch.
Constants are tracked through a bool. Copies are tracked by initializing
temp's next_copy and prev_copy to itself, allowing to simplify the code
a bit.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Aurelien Jarno [Mon, 27 Jul 2015 10:41:44 +0000 (12:41 +0200)]
tcg/optimize: add temp_is_const and temp_is_copy functions
Add two accessor functions temp_is_const and temp_is_copy, to make the
code more readable and make code change easier.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Aurelien Jarno [Mon, 27 Jul 2015 10:41:44 +0000 (12:41 +0200)]
tcg/optimize: optimize temps tracking
The tcg_temp_info structure uses 24 bytes per temp. Now that we emulate
vector registers on most guests, it's not uncommon to have more than 100
used temps. This means we have initialize more than 2kB at least twice
per TB, often more when there is a few goto_tb.
Instead used a TCGTempSet bit array to track which temps are in used in
the current basic block. This means there are only around 16 bytes to
initialize.
This improves the boot time of a MIPS guest on an x86-64 host by around
7% and moves out tcg_optimize from the the top of the profiler list.
[rth: Handle TCG_CALL_DUMMY_ARG]
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Aurelien Jarno [Fri, 10 Jul 2015 16:03:31 +0000 (18:03 +0200)]
tcg/optimize: fix constant signedness
By convention, on a 64-bit host TCG internally stores 32-bit constants
as sign-extended. This is not the case in the optimizer when a 32-bit
constant is folded.
This doesn't seem to have more consequences than suboptimal code
generation. For instance the x86 backend assumes sign-extended constants,
and in some rare cases uses a 32-bit unsigned immediate 0xffffffff
instead of a 8-bit signed immediate 0xff for the constant -1. This is
with a ppc guest:
before
------
---- 0x9f29cc
movi_i32 tmp1,$0xffffffff
movi_i32 tmp2,$0x0
add2_i32 tmp0,CA,CA,tmp2,r6,tmp2
add2_i32 tmp0,CA,tmp0,CA,tmp1,tmp2
mov_i32 r10,tmp0
0x7fd8c7dfe90c: xor %ebp,%ebp
0x7fd8c7dfe90e: mov %ebp,%r11d
0x7fd8c7dfe911: mov 0x18(%r14),%r9d
0x7fd8c7dfe915: add %r9d,%r10d
0x7fd8c7dfe918: adc %ebp,%r11d
0x7fd8c7dfe91b: add $0xffffffff,%r10d
0x7fd8c7dfe922: adc %ebp,%r11d
0x7fd8c7dfe925: mov %r11d,0x134(%r14)
0x7fd8c7dfe92c: mov %r10d,0x28(%r14)
after
-----
---- 0x9f29cc
movi_i32 tmp1,$0xffffffffffffffff
movi_i32 tmp2,$0x0
add2_i32 tmp0,CA,CA,tmp2,r6,tmp2
add2_i32 tmp0,CA,tmp0,CA,tmp1,tmp2
mov_i32 r10,tmp0
0x7f37010d490c: xor %ebp,%ebp
0x7f37010d490e: mov %ebp,%r11d
0x7f37010d4911: mov 0x18(%r14),%r9d
0x7f37010d4915: add %r9d,%r10d
0x7f37010d4918: adc %ebp,%r11d
0x7f37010d491b: add $0xffffffffffffffff,%r10d
0x7f37010d491f: adc %ebp,%r11d
0x7f37010d4922: mov %r11d,0x134(%r14)
0x7f37010d4929: mov %r10d,0x28(%r14)
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <
1436544211-2769-2-git-send-email-aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Peter Maydell [Fri, 14 Aug 2015 15:10:52 +0000 (16:10 +0100)]
configure: Don't permit SDL or GTK on OSX
The cocoa GUI frontend assumes it is the only GUI (it redefines
main() so it always gets control before the rest of QEMU), so
it does not play well with other UIs like SDL or GTK. (Mostly
people building QEMU on OSX don't have the necessary dependencies
available for configure to build those other front ends, so
mostly this problem goes unnoticed.)
Make configure automatically disable the SDL and GTK front ends
if the cocoa front end is enabled. (We were sort of attempting
to do this for SDL before, but not in a way that worked very well.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: John Arbuckle <programmingkidx@gmail.com>
Message-id:
1439565052-3457-1-git-send-email-peter.maydell@linaro.org
Peter Maydell [Wed, 19 Aug 2015 15:20:20 +0000 (16:20 +0100)]
apic_internal.h: Include cpu.h directly
apic_internal.h relies on cpu.h having been included (for the
X86CPU type); include it directly rather than relying on it
being pulled in via one of the other includes like timer.h.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Peter Maydell [Wed, 19 Aug 2015 15:20:20 +0000 (16:20 +0100)]
qemu-common.h: Move muldiv64() to host-utils.h
Move the muldiv64() function from qemu-common.h to host-utils.h.
This puts it together with all the other arithmetic functions
where we provide a version with __int128_t and a fallback
without, and allows headers which need muldiv64() to avoid
including qemu-common.h.
We don't include host-utils from qemu-common.h, to avoid dragging
more things into qemu-common.h than it already has; in practice
everywhere that needs muldiv64() can get it via qemu/timer.h.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Peter Maydell [Wed, 19 Aug 2015 15:20:20 +0000 (16:20 +0100)]
osdep.h: Add header comment
Add a header comment to osdep.h, explaining what the header is for
and some rules to avoid circular-include difficulties.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Peter Maydell [Wed, 19 Aug 2015 15:20:19 +0000 (16:20 +0100)]
osdep.h: Move some OS header includes and fixups from qemu-common.h
qemu-common.h has some system header includes and fixups for
things that might be missing. This is really an OS dependency
and belongs in osdep.h, so move it across.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Peter Maydell [Wed, 19 Aug 2015 15:20:19 +0000 (16:20 +0100)]
qemu-common.h: Move Win32 fixups into os-win32.h
qemu-common.h includes some fixups for things the Win32
headers don't define or define weirdly. These really
belong in os-win32.h, so move them there.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Peter Maydell [Wed, 19 Aug 2015 15:20:19 +0000 (16:20 +0100)]
compiler.h: Use glue() in QEMU_BUILD_BUG_ON define
Rather than rolling custom concatenate-strings macros for the
QEMU_BUILD_BUG_ON macro to use, use the glue() macro we already
have (since it's now available to us in this header).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Peter Maydell [Wed, 19 Aug 2015 15:20:19 +0000 (16:20 +0100)]
osdep.h: Move some compiler-specific things to compiler.h
osdep.h has a few things which are really compiler specific;
move them to compiler.h, and include compiler.h from osdep.h.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Peter Maydell [Wed, 19 Aug 2015 15:20:19 +0000 (16:20 +0100)]
osdep.h: Remove qemu_printf
qemu_printf is an ancient remnant which has been a simple #define to
printf for over a decade, and is used in only a few places. Expand
it out in those places and remove the #define.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Peter Maydell [Wed, 19 Aug 2015 15:20:19 +0000 (16:20 +0100)]
qapi/qmp-event.c: Don't manually include os-win32.h/os-posix.h
qmp-event.c already includes qemu-common.h, so manually including
os-win32.h/os-posix.h is unnecessary (and potentially fragile,
since it's duplicating the #ifdef logic that chooses which of the
two we need). Remove the unnecessary include logic.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Peter Maydell [Tue, 18 Aug 2015 23:25:52 +0000 (00:25 +0100)]
Merge remote-tracking branch 'remotes/rth/tags/pull-axp-
201508018' into staging
Alpha shadow register optimization
# gpg: Signature made Tue 18 Aug 2015 19:09:41 BST using RSA key ID
4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg: aka "Richard Henderson <rth@redhat.com>"
# gpg: aka "Richard Henderson <rth@twiddle.net>"
* remotes/rth/tags/pull-axp-
201508018:
target-alpha: Inline hw_ret
target-alpha: Inline call_pal
target-alpha: Use separate TCGv temporaries for the shadow registers
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Richard Henderson [Tue, 16 Sep 2014 19:55:12 +0000 (12:55 -0700)]
target-alpha: Inline hw_ret
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Tue, 16 Sep 2014 19:35:59 +0000 (12:35 -0700)]
target-alpha: Inline call_pal
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Tue, 16 Sep 2014 19:16:38 +0000 (12:16 -0700)]
target-alpha: Use separate TCGv temporaries for the shadow registers
This avoids having to manually swap them around when swapping to and
from PALmode. We simply encode the shadow registers into the translation.
The VMStateDescription version changes, because the meaning of "shadow"
changes in the save file when in PALmode. It would be possible to fix
this, but I don't think it's worth the effort.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Peter Maydell [Tue, 18 Aug 2015 16:06:41 +0000 (17:06 +0100)]
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
* SCSI fixes from Stefan and Fam
* vhost-scsi fix from Igor and Lu Lina
* a build system fix from Daniel
* two more multi-arch-related patches from Peter C.
* TCG patches from myself and Sergey Fedorov
* RCU improvement from Wen Congyang
* a few more simple cleanups
# gpg: Signature made Fri 14 Aug 2015 22:41:52 BST using RSA key ID
78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* remotes/bonzini/tags/for-upstream:
disas: Defeature print_target_address
hw: fix mask for ColdFire UART command register
scsi-generic: identify AIO callbacks more clearly
scsi-disk: identify AIO callbacks more clearly
scsi: create restart bottom half in the right AioContext
configure: only add CONFIG_RDMA to config-host.h once
qemu-nbd: remove unnecessary qemu_notify_event()
vhost-scsi: Clarify vhost_virtqueue_mask argument
exec: use macro ROUND_UP for alignment
rcu: Allow calling rcu_(un)register_thread() during synchronize_rcu()
exec: drop cpu_can_do_io, just read cpu->can_do_io
cpu_defs: Simplify CPUTLB padding logic
cpu-exec: Do not invalidate original TB in cpu_exec_nocache()
vhost/scsi: call vhost_dev_cleanup() at unrealize() time
virtio-scsi-test: Add test case for tail unaligned WRITE SAME
scsi-disk: Fix assertion failure on WRITE SAME
tests: virtio-scsi: clear unit attention after reset
scsi-disk: fix cmd.mode field typo
virtio-scsi: use virtqueue_map_sg() when loading requests
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Crosthwaite [Sun, 5 Jul 2015 20:50:32 +0000 (13:50 -0700)]
disas: Defeature print_target_address
It does not work in multi-arch as it requires the CPU specific
TARGET_VIRT_ADDR_SPACE_BITS global define. Just use the generic
version that does no masking. Targets should be responsible for
passing in a sane virtual address.
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-Id: <
1436129432-16617-1-git-send-email-crosthwaite.peter@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Wed, 24 Jun 2015 11:55:51 +0000 (13:55 +0200)]
hw: fix mask for ColdFire UART command register
The "miscellaneous commands" part of the register is 3 bits wide.
Spotted by Coverity and confirmed in the datasheet, downloadable from
http://cache.freescale.com/files/32bit/doc/ref_manual/MCF5307BUM.pdf
(figure 14-6).
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Sun, 19 Jul 2015 17:15:26 +0000 (19:15 +0200)]
scsi-generic: identify AIO callbacks more clearly
Functions that are not callbacks should assert that aiocb is NULL and
have a SCSIGenericReq argument.
AIO callbacks should assert that aiocb is not NULL. They also have an
opaque argument.
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Sun, 19 Jul 2015 17:15:26 +0000 (19:15 +0200)]
scsi-disk: identify AIO callbacks more clearly
Functions that are not callbacks should assert that aiocb is NULL and
have a non-opaque argument (usually a pointer to SCSIDiskReq).
AIO callbacks should assert that aiocb is not NULL and take care of
calling block_acct done. They also have an opaque argument.
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Wed, 22 Jul 2015 14:38:17 +0000 (16:38 +0200)]
scsi: create restart bottom half in the right AioContext
This matches commit 4407c1c (virtio-blk: Schedule BH in the right context,
2014-06-17), which did the same thing for virtio-blk.
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Daniel P. Berrange [Fri, 31 Jul 2015 12:23:23 +0000 (13:23 +0100)]
configure: only add CONFIG_RDMA to config-host.h once
For unknown reasons (probably a git rebase merge mistake)
commit
2da776db4846eadcb808598a5d3484d149773c05
Author: Michael R. Hines <mrhines@us.ibm.com>
Date: Mon Jul 22 10:01:54 2013 -0400
rdma: core logic
Adds CONFIG_RDMA to config-host.h twice, as can be seen
in the generated file:
$ grep CONFIG_RDMA config-host.h
#define CONFIG_RDMA 1
#define CONFIG_RDMA 1
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <
1438345403-32467-1-git-send-email-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Mon, 27 Jul 2015 11:52:55 +0000 (13:52 +0200)]
qemu-nbd: remove unnecessary qemu_notify_event()
This was needed when qemu-nbd was using qemu_set_fd_handler2. It is
not needed anymore now that nbd_update_server_fd_handler is called
whenever nbd_can_accept() can change from false to true.
nbd_update_server_fd_handler will call qemu_set_fd_handler(),
which will call qemu_notify_event().
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Lu Lina [Mon, 27 Jul 2015 06:25:59 +0000 (14:25 +0800)]
vhost-scsi: Clarify vhost_virtqueue_mask argument
vhost_virtqueue_mask takes an "absolute" virtqueue index, while the
code looks like it's passing an index that is relative to
s->dev.vq_index. In reality, s->dev.vq_index is always zero, so
this patch does not make any difference, but the code is clearer.
Signed-off-by: Lu Lina <lina.lulina@huawei.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Message-Id: <
1437978359-17960-1-git-send-email-arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Chen Hanxiao [Fri, 24 Jul 2015 03:12:03 +0000 (11:12 +0800)]
exec: use macro ROUND_UP for alignment
Use ROUND_UP instead.
Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
Message-Id: <
1437707523-4910-1-git-send-email-chenhanxiao@cn.fujitsu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Wen Congyang [Mon, 27 Jul 2015 02:24:18 +0000 (10:24 +0800)]
rcu: Allow calling rcu_(un)register_thread() during synchronize_rcu()
If rcu_(un)register_thread() is called together with synchronize_rcu(),
it will wait for the synchronize_rcu() to finish. But when synchronize_rcu()
waits for some events, we can modify the list registry.
We also use the lock rcu_gp_lock to assume that synchronize_rcu() isn't
executed in more than one thread at the same time. Add a new mutex lock
rcu_sync_lock to assume it and rename rcu_gp_lock to rcu_registry_lock.
Release rcu_registry_lock when synchronize_rcu() waits for some events.
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Message-Id: <
55B59652.4090503@cn.fujitsu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Wed, 24 Jun 2015 12:16:26 +0000 (14:16 +0200)]
exec: drop cpu_can_do_io, just read cpu->can_do_io
After commit 626cf8f (icount: set can_do_io outside TB execution,
2014-12-08), can_do_io is set to 1 if not executing code. It is
no longer necessary to make this assumption in cpu_can_do_io.
It is also possible to remove the use_icount test, simply by
never setting cpu->can_do_io to 0 unless use_icount is true.
With these changes cpu_can_do_io boils down to a read of
cpu->can_do_io.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Peter Maydell [Fri, 14 Aug 2015 17:06:44 +0000 (18:06 +0100)]
Merge remote-tracking branch 'remotes/stefanha/tags/net-pull-request' into staging
# gpg: Signature made Fri 14 Aug 2015 16:01:19 BST using RSA key ID
81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
* remotes/stefanha/tags/net-pull-request:
tests: test rx recovery from cont
tests: introduce basic pci test for virtio-net
net/vmxnet3: Fix incorrect debug message
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 14 Aug 2015 15:52:34 +0000 (16:52 +0100)]
Merge remote-tracking branch 'remotes/cody/tags/block-pull-request' into staging
# gpg: Signature made Fri 14 Aug 2015 14:54:27 BST using RSA key ID
C0DE3057
# gpg: Good signature from "Jeffrey Cody <jcody@redhat.com>"
# gpg: aka "Jeffrey Cody <jeff@codyprime.org>"
# gpg: aka "Jeffrey Cody <codyprime@gmail.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 9957 4B4D 3474 90E7 9D98 D624 BDBE 7B27 C0DE 3057
* remotes/cody/tags/block-pull-request:
mirror: Fix coroutine reentrance
block/mirror: limit qiov to IOV_MAX elements
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 14 Aug 2015 14:51:24 +0000 (15:51 +0100)]
Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging
# gpg: Signature made Fri 14 Aug 2015 15:41:14 BST using RSA key ID
81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
* remotes/stefanha/tags/block-pull-request:
throttle: add throttle_max_is_missing_limit() test
throttle: refuse bps_max/iops_max without bps/iops
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Kevin Wolf [Thu, 13 Aug 2015 08:41:50 +0000 (10:41 +0200)]
mirror: Fix coroutine reentrance
This fixes a regression introduced by commit
dcfb3beb ("mirror: Do zero
write on target if sectors not allocated"), which was reported to cause
aborts with the message "Co-routine re-entered recursively".
The cause for this bug is the following code in mirror_iteration_done():
if (s->common.busy) {
qemu_coroutine_enter(s->common.co, NULL);
}
This has always been ugly because - unlike most places that reenter - it
doesn't have a specific yield that it pairs with, but is more
uncontrolled. What we really mean here is "reenter the coroutine if
it's in one of the four explicit yields in mirror.c".
This used to be equivalent with s->common.busy because neither
mirror_run() nor mirror_iteration() call any function that could yield.
However since commit
dcfb3beb this doesn't hold true any more:
bdrv_get_block_status_above() can yield.
So what happens is that bdrv_get_block_status_above() wants to take a
lock that is already held, so it adds itself to the queue of waiting
coroutines and yields. Instead of being woken up by the unlock function,
however, it gets woken up by mirror_iteration_done(), which is obviously
wrong.
In most cases the code actually happens to cope fairly well with such
cases, but in this specific case, the unlock must already have scheduled
the coroutine for wakeup when mirror_iteration_done() reentered it. And
then the coroutine happened to process the scheduled restarts and tried
to reenter itself recursively.
This patch fixes the problem by pairing the reenter in
mirror_iteration_done() with specific yields instead of abusing
s->common.busy.
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Message-id:
1439455310-11263-1-git-send-email-kwolf@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
Jeff Cody [Fri, 14 Aug 2015 13:41:30 +0000 (09:41 -0400)]
Merge branch 'block-next' into HEAD
Peter Maydell [Thu, 13 Aug 2015 16:47:44 +0000 (17:47 +0100)]
Merge remote-tracking branch 'remotes/lalrae/tags/mips-
20150813' into staging
MIPS patches 2015-08-13
Changes:
* mips32r5-generic CPU updated and renamed to P5600
* improvements in LWL/LDL, logging and fulong2e
# gpg: Signature made Thu 13 Aug 2015 17:10:59 BST using RSA key ID
0B29DA6B
# gpg: Good signature from "Leon Alrae <leon.alrae@imgtec.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 8DD3 2F98 5495 9D66 35D4 4FC0 5211 8E3C 0B29 DA6B
* remotes/lalrae/tags/mips-
20150813:
target-mips: Use CPU_LOG_INT for logging related to interrupts
hw/pci-host/bonito: Avoid buffer overrun for bad LDMA/COP accesses
target-mips: simplify LWL/LDL mask generation
target-mips: update mips32r5-generic into P5600
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Richard Henderson [Mon, 3 Aug 2015 18:49:12 +0000 (11:49 -0700)]
target-mips: Use CPU_LOG_INT for logging related to interrupts
There are now no unconditional uses of qemu_log in the subdirectory.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Peter Maydell [Thu, 30 Jul 2015 15:33:42 +0000 (16:33 +0100)]
hw/pci-host/bonito: Avoid buffer overrun for bad LDMA/COP accesses
The LDMA and COP memory regions represent four 32 bit registers
each, but the memory regions themselves are 0x100 bytes large.
Add guards to the read and write accessors so that bogus accesses
beyond the four defined registers don't just run off the end of
the bonldma and boncop structs and into whatever lies beyond.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Aurelien Jarno [Wed, 15 Jul 2015 15:05:09 +0000 (17:05 +0200)]
target-mips: simplify LWL/LDL mask generation
The LWL/LDL instructions mask the GPR with a mask depending on the
address alignement. It is currently computed by doing:
mask = 0x7fffffffffffffffull >> (t1 ^ 63)
It's simpler to generate it by doing:
mask = ~(-1 << t1)
It uses one TCG instruction less, and it avoids a 32/64-bit constant
loading which can take a few instructions on RISC hosts.
Cc: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Yongbok Kim [Fri, 10 Jul 2015 11:10:52 +0000 (12:10 +0100)]
target-mips: update mips32r5-generic into P5600
As full specification of P5600 is available, mips32r5-generic should
be renamed to P5600 and corrected as its intention.
Correct PRid and detail of configuration.
Features which are not currently supported are described as FIXME.
Fix Config.MM bit location
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
[leon.alrae@imgtec.com: correct cache line sizes and LLAddr shift]
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Peter Maydell [Thu, 13 Aug 2015 14:07:34 +0000 (15:07 +0100)]
Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
virtio,pc,acpi fixes, cleanups
Mostly cleanups, notably Eduardo's compat code rework,
and smbios rearrangement for use by ARM.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Thu 13 Aug 2015 12:59:16 BST using RSA key ID
D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
* remotes/mst/tags/for_upstream: (24 commits)
MAINTAINERS: list smbios maintainers
smbios: move smbios code into a common folder
smbios: remove dependency on x86 e820 tables
smbios: extract x86 smbios building code into a function
acpi: avoid potential uninitialized access to cpu_hp_io_base
virtio-net: remove useless codes
pci: allow 0 address for PCI IO/MEM regions
pc: Remove redundant arguments from pc_memory_init()
pc: Remove redundant arguments from pc_cmos_init()
pc: Remove redundant arguments from *load_linux()
pc: Use PCMachineState as pc_guest_info_init() argument
pc: Move {above,below}_4g_mem_size variables to PCMachineState
pc: Use PCMachineState for pc_memory_init() argument
pc: Use PCMachineState for pc_cmos_init() argument
pc: Eliminate pc_default_machine_options()
pc: Eliminate pc_common_machine_options()
pc: Move PCMachineClass, PCMachineState to qemu/typedefs.h
pc: Rename pc_machine variables to pcms
pc: Use error_abort when registering properties
target-i386: Remove x86_cpu_compat_set_features()
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Michael S. Tsirkin [Wed, 12 Aug 2015 09:17:36 +0000 (12:17 +0300)]
MAINTAINERS: list smbios maintainers
Now that smbios has its own directory, list its
maintainers. Same people as ACPI so just reuse that
entry.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Wei Huang [Wed, 12 Aug 2015 02:08:20 +0000 (22:08 -0400)]
smbios: move smbios code into a common folder
To share smbios among different architectures, this patch moves SMBIOS
code (smbios.c and smbios.h) from x86 specific folders into new
hw/smbios directories. As a result, CONFIG_SMBIOS=y is defined in
x86 default config files.
Acked-by: Gabriel Somlo <somlo@cmu.edu>
Tested-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Wei Huang <wei@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Wei Huang [Wed, 12 Aug 2015 02:08:19 +0000 (22:08 -0400)]
smbios: remove dependency on x86 e820 tables
Current smbios builds type 19 table from e820, which is x86 specific.
This patch removes smbios' dependency on e820 by passing an array
of memory area to smbios_get_tables().
Acked-by: Gabriel Somlo <somlo@cmu.edu>
Tested-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Wei Huang <wei@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Wei Huang [Wed, 12 Aug 2015 02:08:18 +0000 (22:08 -0400)]
smbios: extract x86 smbios building code into a function
This patch extracts out the procedure of buidling x86 SMBIOS tables
into a dedicated function.
Acked-by: Gabriel Somlo <somlo@cmu.edu>
Tested-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Wei Huang <wei@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Daniel P. Berrange [Fri, 31 Jul 2015 10:14:35 +0000 (11:14 +0100)]
acpi: avoid potential uninitialized access to cpu_hp_io_base
When building QEMU with Mingw64 toolchain I see a warning
CC x86_64-softmmu/hw/i386/acpi-build.o
hw/i386/acpi-build.c: In function 'acpi_build':
hw/i386/acpi-build.c:1138:9: warning: 'pm.cpu_hp_io_base' may be used uninitialized in this function [-Wmaybe-uninitialized]
aml_append(crs,
^
hw/i386/acpi-build.c:1666:16: note: 'pm.cpu_hp_io_base' was declared here
AcpiPmInfo pm;
^
In acpi_get_pm_info() some of the fields are pre-initialized
to 0, but this one was missed.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Jason Wang [Mon, 3 Aug 2015 05:20:38 +0000 (13:20 +0800)]
virtio-net: remove useless codes
After commit
40bad8f3deba15e2074ff34cfe923c12916b1cc5("virtio-net: fix
used len for tx"), async_tx.len was no longer used afterwards. So
remove useless codes with it.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Laurent Vivier [Fri, 24 Jul 2015 08:35:13 +0000 (10:35 +0200)]
pci: allow 0 address for PCI IO/MEM regions
Some kernels program a 0 address for io regions. PCI 3.0 spec
section 6.2.5.1 doesn't seem to disallow this.
based on patch by Michael Roth <mdroth@linux.vnet.ibm.com>
Add pci_allow_0_addr in MachineClass to conditionally
allow addr 0 for pseries, as this can break other architectures.
This patch allows to hotplug PCI card in pseries machine, as the first
added card BAR0 is always set to 0 address.
This as a temporary hack, waiting to fix PCI memory priorities for more
machine types...
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Eduardo Habkost [Fri, 7 Aug 2015 19:55:55 +0000 (16:55 -0300)]
pc: Remove redundant arguments from pc_memory_init()
Remove arguments that can be found in PCMachineState.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Eduardo Habkost [Fri, 7 Aug 2015 19:55:54 +0000 (16:55 -0300)]
pc: Remove redundant arguments from pc_cmos_init()
Remove arguments that can be found in PCMachineState.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Eduardo Habkost [Fri, 7 Aug 2015 19:55:53 +0000 (16:55 -0300)]
pc: Remove redundant arguments from *load_linux()
Remove arguments that can be found in PCMachineState.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Eduardo Habkost [Fri, 7 Aug 2015 19:55:52 +0000 (16:55 -0300)]
pc: Use PCMachineState as pc_guest_info_init() argument
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Eduardo Habkost [Fri, 7 Aug 2015 19:55:51 +0000 (16:55 -0300)]
pc: Move {above,below}_4g_mem_size variables to PCMachineState
This will make the info readily available for the other initialization
functions, and will allow us to simplify their argument list.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Eduardo Habkost [Fri, 7 Aug 2015 19:55:50 +0000 (16:55 -0300)]
pc: Use PCMachineState for pc_memory_init() argument
pc_memory_init() already expects a PCMachineState object, there's no
point in upcasting it to MachineState before calling the function.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Eduardo Habkost [Fri, 7 Aug 2015 19:55:49 +0000 (16:55 -0300)]
pc: Use PCMachineState for pc_cmos_init() argument
pc_cmos_init() already expects a PCMachineState object, there's no point
in upcasting it to MachineState before calling the function.
While doing it, reorder the arguments so PCMachineState is the first
function argument.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Eduardo Habkost [Fri, 7 Aug 2015 19:55:48 +0000 (16:55 -0300)]
pc: Eliminate pc_default_machine_options()
The only PC machines that didn't call pc_default_machine_options() were
isaps and xenfv. Both were already overwriting max_cpus, and only isapc
was not overwriting hot_add_cpu.
After making isapc set hot_add_cpu to NULL, we can move the
pc_default_machine_options() code the PC common class_init.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Eduardo Habkost [Fri, 7 Aug 2015 19:55:47 +0000 (16:55 -0300)]
pc: Eliminate pc_common_machine_options()
All TYPE_PC_MACHINE subclasses call pc_common_machine_options().
TYPE_PC_MACHINE can simply initialize the common options on class_init
directly.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Eduardo Habkost [Fri, 7 Aug 2015 19:55:46 +0000 (16:55 -0300)]
pc: Move PCMachineClass, PCMachineState to qemu/typedefs.h
They will be used inside hw/xen/xen.h, which doesn't include
hw/i386/pc.h.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Eduardo Habkost [Fri, 7 Aug 2015 19:55:45 +0000 (16:55 -0300)]
pc: Rename pc_machine variables to pcms
Make the code use the same variable name everywhere. "pcms" is already
being used in existing code and it's shorter.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Eduardo Habkost [Fri, 7 Aug 2015 19:55:44 +0000 (16:55 -0300)]
pc: Use error_abort when registering properties
No errors should happen when registering the properties, but we
shouldn't silently ignore them if they happen.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Eduardo Habkost [Fri, 7 Aug 2015 19:55:43 +0000 (16:55 -0300)]
target-i386: Remove x86_cpu_compat_set_features()
The function is not used by PC code anymore and can be removed.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Eduardo Habkost [Fri, 7 Aug 2015 19:55:42 +0000 (16:55 -0300)]
pc: Use PC_COMPAT_* for CPUID feature compatibility
Now we can use compat_props to keep CPUID feature compatibility, using
the boolean QOM properties for CPUID feature flags.
This simplifies the compatibility code, and reduces duplication between
pc_piix.c and pc_q35.c.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Eduardo Habkost [Fri, 7 Aug 2015 19:15:31 +0000 (16:15 -0300)]
piix: Document coreboot-specific RAM size config register
The existing i440fx initialization code sets a PCI config register that
isn't documented anywhere in the Intel 440FX datasheet. Register 0x57 is
DRAMC (DRAM Control) and has nothing to do with the RAM size.
This was implemented in commit
ec5f92ce6ac8ec09056be77e03c941be188648fa
because old coreboot code tried to read registers 0x5a-0x5f,0x56,0x57 to
get the RAM size from QEMU, but I couldn't find out why coreboot did
that. I assume it was a mistake, and the original code was supposed to
be reading the DRB[0-7] registers (offsets 0x60-0x67).
Document that coreboot-specific register offset in a macro and a
comment, for future reference.
Cc: Ed Swierk <eswierk@skyportsystems.com>
Cc: Richard Smith <smithbone@gmail.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Victor Kaplansky [Sun, 9 Aug 2015 09:39:59 +0000 (12:39 +0300)]
make: load only required dependency files.
The old rules.mak loads dependency .d files using include directive
with file glob pattern "*.d". This breaks the build when build tree has
left-over *.d files from another build.
This patch fixes this by
- loading precise list of .d files made from *.o and *.mo.
- specifying explicit list of required dependency info files for
*.hex autogenerated sources.
Note that Makefile still includes some .d in root directory by including
"*.d".
Signed-off-by: Victor Kaplansky <victork@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Victor Kaplansky [Sun, 9 Aug 2015 09:39:53 +0000 (12:39 +0300)]
make: fix where dependency *.d are stored.
In rules like "bar/%.o: %.c" there is a difference between $(*D) and
$(@D). $(*D) expands to '.', while $(@D) expands to 'bar'. It is
cleaner to generate *.d in the same directory where appropriate *.o
resides. This allows precise including of dependency info from .d files.
As a hack, we also touch two sources for generated *.hex files. Without
this hack, anyone doing "git pull; make" will not get *.hex rebuilt
correctly since the dependency file would be missing.
Signed-off-by: Victor Kaplansky <victork@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Peter Maydell [Thu, 13 Aug 2015 11:04:24 +0000 (12:04 +0100)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-
20150813' into staging
target-arm queue:
* i.MX code cleanup/refactorings
* i.MX UART fix to work with uninitialized chardev
* minor GIC code refactorings
* implement the ARM Secure physical timer
* implement the ARM Hypervisor timer
# gpg: Signature made Thu 13 Aug 2015 11:40:56 BST using RSA key ID
14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
* remotes/pmaydell/tags/pull-target-arm-
20150813: (27 commits)
i.MX: Fix UART driver to work with unitialized "chardev" device
hw/cpu/a15mpcore: Wire up hyp and secure physical timer interrupts
hw/arm/virt: Wire up secure timer interrupt
target-arm: Add AArch32 banked register access to secure physical timer
target-arm: Add the AArch64 view of the Secure physical timer
target-arm: Add debug check for mismatched cpreg resets
Introduce gic_class_name() instead of repeating condition
hw/arm/gic: Kill code duplication
Merge memory_region_init_reservation() into memory_region_init_io()
i.MX: Fix Coding style for GPT emulator
i.MX: Split GPT emulator in a header file and a source file
i.MX: Fix Coding style for EPIT emulator
i.MX: Split EPIT emulator in a header file and a source file
i.MX: Fix Coding style for CCM emulator
i.MX: Split CCM emulator in a header file and a source file
i.MX: Fix Coding style for AVIC emulator.
i.MX: Split AVIC emulator in a header file and a source file
i.MX:Fix Coding style for UART emulator.
i.MX: Move serial initialization to init/realize of DeviceClass.
i.MX: Split UART emulator in a header file and a source file
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Jean-Christophe Dubois [Thu, 13 Aug 2015 10:26:22 +0000 (11:26 +0100)]
i.MX: Fix UART driver to work with unitialized "chardev" device
The "chardev" property initialization might have failed (for example because
there are not enough chardevs provided by QEMU).
The serial device emulator needs to be able to work with an uninitialized
(NULL) chardev device pointer.
This patch adds some missing tests on the chr pointer value before
using it.
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id:
1438342461-18967-1-git-send-email-jcd@tribudubois.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Thu, 13 Aug 2015 10:26:22 +0000 (11:26 +0100)]
hw/cpu/a15mpcore: Wire up hyp and secure physical timer interrupts
Since we now support both the hypervisor and the secure physical timer, wire
their interrupt lines up in the a15mpcore wrapper object.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id:
1437047249-2357-5-git-send-email-peter.maydell@linaro.org
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Peter Maydell [Thu, 13 Aug 2015 10:26:22 +0000 (11:26 +0100)]
hw/arm/virt: Wire up secure timer interrupt
Wire up the secure timer interrupt. Since we've defined
that the plain old physical timer is the NS timer, we can
drop the now-out-of-date comment about QEMU not having TZ.
Use a data-driven loop to wire up the timer interrupts, since
we now have four of them and the code is the same for each.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id:
1437047249-2357-4-git-send-email-peter.maydell@linaro.org
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Peter Maydell [Thu, 13 Aug 2015 10:26:22 +0000 (11:26 +0100)]
target-arm: Add AArch32 banked register access to secure physical timer
If EL3 is AArch32, then the secure physical timer is accessed via
banking of the registers used for the non-secure physical timer.
Implement this banking.
Note that the access controls for the AArch32 banked registers
remain the same as the physical-timer checks; they are not the
same as the controls on the AArch64 secure timer registers.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id:
1437047249-2357-3-git-send-email-peter.maydell@linaro.org
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Peter Maydell [Thu, 13 Aug 2015 10:26:22 +0000 (11:26 +0100)]
target-arm: Add the AArch64 view of the Secure physical timer
On CPUs with EL3, there are two physical timers, one for Secure and one
for Non-secure. Implement this extra timer and the AArch64 registers
which access it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id:
1437047249-2357-2-git-send-email-peter.maydell@linaro.org
Peter Maydell [Thu, 13 Aug 2015 10:26:21 +0000 (11:26 +0100)]
target-arm: Add debug check for mismatched cpreg resets
It's easy to accidentally define two cpregs which both try
to reset the same underlying state field (for instance a
clash between an AArch64 EL3 definition and an AArch32
banked register definition). if the two definitions disagree
about the reset value then the result is dependent on which
one happened to be reached last in the hashtable enumeration.
Add a consistency check to detect and assert in these cases:
after reset, we run a second pass where we check that the
reset operation doesn't change the value of the register.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id:
1436797559-20835-1-git-send-email-peter.maydell@linaro.org
Pavel Fedin [Thu, 13 Aug 2015 10:26:21 +0000 (11:26 +0100)]
Introduce gic_class_name() instead of repeating condition
This small inline returns correct GIC class name depending on whether we
use KVM acceleration or not. Avoids duplicating the condition everywhere.
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id:
4f26901be9b844b563673ce3ad08eeedbb7a7132.
1438758065.git.p.fedin@samsung.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Pavel Fedin [Thu, 13 Aug 2015 10:26:21 +0000 (11:26 +0100)]
hw/arm/gic: Kill code duplication
Extracted duplicated initialization code from SW-emulated and KVM GIC
implementations and put into gic_init_irqs_and_mmio()
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Message-id:
8ea5b2781ef39cb5989420987fc73c70e377687d.
1438758065.git.p.fedin@samsung.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Pavel Fedin [Thu, 13 Aug 2015 10:26:21 +0000 (11:26 +0100)]
Merge memory_region_init_reservation() into memory_region_init_io()
Just specifying ops = NULL in some cases can be more convenient than having
two functions.
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id:
78a379ab1b6b30ab497db7971ad336dad1dbee76.
1438758065.git.p.fedin@samsung.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Jean-Christophe Dubois [Thu, 13 Aug 2015 10:26:21 +0000 (11:26 +0100)]
i.MX: Fix Coding style for GPT emulator
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id:
cc7d1589e774e87c346b75a6c25e07957f436ced.
1437080501.git.jcd@tribudubois.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Jean-Christophe Dubois [Thu, 13 Aug 2015 10:26:20 +0000 (11:26 +0100)]
i.MX: Split GPT emulator in a header file and a source file
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id:
e32fba56b9dae3cc7c83726550514b2d0c890ae0.
1437080501.git.jcd@tribudubois.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Jean-Christophe Dubois [Thu, 13 Aug 2015 10:26:20 +0000 (11:26 +0100)]
i.MX: Fix Coding style for EPIT emulator
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id:
d8d70683c6a48ac318c1635595619cfb0eb31681.
1437080501.git.jcd@tribudubois.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Jean-Christophe Dubois [Thu, 13 Aug 2015 10:26:20 +0000 (11:26 +0100)]
i.MX: Split EPIT emulator in a header file and a source file
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id:
948927cab0c85da9a753c5f6d5501323d5604c8e.
1437080501.git.jcd@tribudubois.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Jean-Christophe Dubois [Thu, 13 Aug 2015 10:26:20 +0000 (11:26 +0100)]
i.MX: Fix Coding style for CCM emulator
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id:
ff0b6720b1c55204e663f07be47c0203f6871084.
1437080501.git.jcd@tribudubois.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>