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1136 Commits
Author SHA1 Message Date
Richard Henderson 50627f1b7b accel/tcg: Add fast path for translator_ld* 
Cache the translation from guest to host address, so we may
use direct loads when we hit on the primary translation page.

Look up the second translation page only once, during translation.
This obviates another lookup of the second page within tb_gen_code
after translation.

Fixes a bug in that plugin_insn_append should be passed the bytes
in the original memory order, not bswapped by pieces.

Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Tested-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2022-09-06 08:04:26 +01:00
Richard Henderson 306c872103 accel/tcg: Add pc and host_pc params to gen_intermediate_code 
Pass these along to translator_loop -- pc may be used instead
of tb->pc, and host_pc is currently unused.  Adjust all targets
at one time.

Acked-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Tested-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2022-09-06 08:04:26 +01:00
Richard Henderson dac8d19bdb accel/tcg: Remove translator_ldsw 
The only user can easily use translator_lduw and
adjust the type to signed during the return.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Tested-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2022-09-06 08:04:26 +01:00
Richard Henderson 97e03465f7 accel/tcg: Move qemu_ram_addr_from_host_nofail to physmem.c 
The base qemu_ram_addr_from_host function is already in
softmmu/physmem.c; move the nofail version to be adjacent.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Tested-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2022-09-06 08:04:26 +01:00
Richard Henderson 0c90ba16e3 accel/tcg: Make tb_htable_lookup static 
The function is not used outside of cpu-exec.c.  Move it and
its subroutines up in the file, before the first use.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Tested-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2022-09-06 08:04:26 +01:00
Richard Henderson cdf7130851 accel/tcg: Properly implement get_page_addr_code for user-only 
The current implementation is a no-op, simply returning addr.
This is incorrect, because we ought to be checking the page
permissions for execution.

Make get_page_addr_code inline for both implementations.

Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Tested-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2022-09-06 08:04:25 +01:00
Ilya LeoshkevichandRichard Henderson f3b2b81b6f accel/tcg: Introduce is_same_page() 
Introduce a function that checks whether a given address is on the same
page as where disassembly started. Having it improves readability of
the following patches.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20220811095534.241224-3-iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[rth: Make the DisasContextBase parameter const.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2022-09-06 08:04:25 +01:00
Vitaly BukaandLaurent Vivier dbbf89751b linux-user/aarch64: Reset target data on MADV_DONTNEED 
aarch64 stores MTE tags in target_date, and they should be reset by
MADV_DONTNEED.

Signed-off-by: Vitaly Buka <vitalybuka@google.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220711220028.2467290-1-vitalybuka@google.com>
[lv: fix code style issues]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
 2022-08-11 11:34:17 +02:00
Hyman Huang(黄勇)andDr. David Alan Gilbert cc2b33eab0 softmmu/dirtylimit: Implement vCPU dirtyrate calculation periodically 
Introduce the third method GLOBAL_DIRTY_LIMIT of dirty
tracking for calculate dirtyrate periodly for dirty page
rate limit.

Add dirtylimit.c to implement dirtyrate calculation periodly,
which will be used for dirty page rate limit.

Add dirtylimit.h to export util functions for dirty page rate
limit implementation.

Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <5d0d641bffcb9b1c4cc3e323b6dfecb36050d948.1656177590.git.huangy81@chinatelecom.cn>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
 2022-07-20 12:15:08 +01:00
Hyman Huang(黄勇)andDr. David Alan Gilbert ab1a161fe3 cpus: Introduce cpu_list_generation_id 
Introduce cpu_list_generation_id to track cpu list generation so
that cpu hotplug/unplug can be detected during measurement of
dirty page rate.

cpu_list_generation_id could be used to detect changes of cpu
list, which is prepared for dirty page rate measurement.

Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <06e1f1362b2501a471dce796abb065b04f320fa5.1656177590.git.huangy81@chinatelecom.cn>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
 2022-07-20 12:15:08 +01:00
Thomas Huth 2116650254 disas: Remove libvixl disassembler 
The disassembly via capstone should be superiour to our old vixl
sources nowadays, so let's finally cut this old disassembler out
of the QEMU source tree.

Message-Id: <20220603164249.112459-1-thuth@redhat.com>
Tested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
 2022-07-05 10:15:49 +02:00
Richard Henderson 64c8c6a992 gdbstub: Adjust gdb_syscall_complete_cb declaration 
Change 'ret' to uint64_t.  This resolves a FIXME in the
m68k and nios2 semihosting that we've lost data.
Change 'err' to int.  There is nothing target-specific
about the width of the errno value.

Reviewed-by: Luc Michel <lmichel@kalray.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2022-06-28 04:35:52 +05:30
Richard Henderson 9a89470449 semihosting: Split out semihost_sys_lseek 
Split out the non-ARM specific portions of SYS_SEEK to a
reusable function.  This handles all GuestFD.  Isolate the
curious ARM-specific return value processing to a new
callback, common_semi_seek_cb.

Expand the internal type of the offset to int64_t, and
provide the whence argument, which will be required by
m68k and nios2 semihosting.

Note that gdb_do_syscall %x reads target_ulong, not int.

Reviewed-by: Luc Michel <lmichel@kalray.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2022-06-28 04:35:52 +05:30
Richard Henderson 9814483d63 include/exec: Define errno values in gdbstub.h 
Define constants for the errno values defined by the
gdb remote fileio protocol.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2022-06-28 04:35:07 +05:30
Richard Henderson 7c56c2d3da include/exec: Move gdb_stat and gdb_timeval to gdbstub.h 
We have two copies of these structures, and require them
in semihosting/ going forward.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2022-06-28 04:35:07 +05:30
Richard Henderson 94b14fe08f include/exec: Move gdb open flags to gdbstub.h 
There were 3 copies of these flags.  Place them in the
file with gdb_do_syscall, with which they belong.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2022-06-28 04:35:07 +05:30
Richard Henderson c89a14ad2c semihosting: Move exec/softmmu-semi.h to semihosting/softmmu-uaccess.h 
We have a subdirectory for semihosting; move this file out of exec.
Rename to emphasize the contents are a replacement for the functions
in linux-user/bsd-user uaccess.c.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2022-06-28 04:35:06 +05:30
Jagannathan RamanandStefan Hajnoczi 3123f93d6b vfio-user: handle PCI BAR accesses 
Determine the BARs used by the PCI device and register handlers to
manage the access to the same.

Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: John G Johnson <john.g.johnson@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 3373e10b5be5f42846f0632d4382466e1698c505.1655151679.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
 2022-06-15 16:43:42 +01:00
Bernhard BeschowandPhilippe Mathieu-Daudé b01841fa85 accel/tcg: Inline dump_opcount_info() and remove it 
dump_opcount_info() is a one-line wrapper around tcg_dump_op_count()
which is also exported. So use the latter directly.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20220520180109.8224-10-shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
 2022-06-11 11:44:50 +02:00
Bernhard BeschowandPhilippe Mathieu-Daudé 7112ffd93a accel/tcg/cpu-exec: Unexport dump_drift_info() 
Commit 3a841ab53f 'qapi: introduce
x-query-jit QMP command' basically moved the only function using
dump_drift_info() to cpu-exec.c. Therefore, dump_drift_info() doesn't
need to be exported any longer.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20220520180109.8224-9-shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
 2022-06-11 11:44:50 +02:00
Xiaojuan YangandRichard Henderson a8a506c390 hw/loongarch: Add support loongson3 virt machine type. 
Emulate a 3A5000 board use the new loongarch instruction.
3A5000 belongs to the Loongson3 series processors.
The board consists of a 3A5000 cpu model and the virt
bridge. The host 3A5000 board is really complicated and
contains many functions.Now for the tcg softmmu mode
only part functions are emulated.

More detailed info you can see
https://github.com/loongson/LoongArch-Documentation

Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220606124333.2060567-31-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2022-06-06 18:09:03 +00:00
Markus Armbruster ea9cea93c6 Clean up decorations and whitespace around header guards 
Cleaned up with scripts/clean-header-guards.pl.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20220506134911.2856099-5-armbru@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
 2022-05-11 16:50:32 +02:00
Markus Armbruster 4f31b54bfe Normalize header guard symbol definition 
We commonly define the header guard symbol without an explicit value.
Normalize the exceptions.

Done with scripts/clean-header-guards.pl.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20220506134911.2856099-4-armbru@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
 2022-05-11 16:50:26 +02:00
Marc-André Lureau 8905770b27 compiler.h: replace QEMU_NORETURN with G_NORETURN 
G_NORETURN was introduced in glib 2.68, fallback to G_GNUC_NORETURN in
glib-compat.

Note that this attribute must be placed before the function declaration
(bringing a bit of consistency in qemu codebase usage).

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20220420132624.2439741-20-marcandre.lureau@redhat.com>
 2022-04-21 17:03:51 +04:00
Richard Henderson bf619eae2e include/exec/log: Do not reference QemuLogFile directly 
Use qemu_log_trylock/unlock instead of the raw rcu_read.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220417183019.755276-25-richard.henderson@linaro.org>
 2022-04-20 10:51:11 -07:00