Implement fw_cfg_arch_key_name(), which returns the name of a
sparc64-specific key.
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20190422195020.1494-8-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Implement fw_cfg_arch_key_name(), which returns the name of a
sparc32-specific key.
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20190422195020.1494-7-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Implement fw_cfg_arch_key_name(), which returns the name of a
ppc-specific key.
The fw_cfg device is used by the machine using OpenBIOS:
- 40p
- mac99 (oldworld)
- g3beige (newworld)
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20190422195020.1494-6-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Implement fw_cfg_arch_key_name(), which returns the name of a
i386-specific key.
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20190422195020.1494-5-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Add fw_cfg_arch_key_name() which returns the name of
an architecture-specific key.
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20190422195020.1494-3-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Add trace events to dump the key content.
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20190422195020.1494-2-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Use qemu_guest_getrandom in aspeed, nrf51, bcm2835, exynos4210 rng devices.
Use qemu_guest_getrandom in target/ppc darn instruction.
Support ARMv8.5-RNG extension.
Support x86 RDRAND extension.
Acked-by: Daniel P. Berrangé <berrange@redhat.com>
Acked-by: Laurent Vivier <laurent@vivier.eu>
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Merge remote-tracking branch 'remotes/rth/tags/pull-rng-20190522' into staging
Introduce qemu_guest_getrandom.
Use qemu_guest_getrandom in aspeed, nrf51, bcm2835, exynos4210 rng devices.
Use qemu_guest_getrandom in target/ppc darn instruction.
Support ARMv8.5-RNG extension.
Support x86 RDRAND extension.
Acked-by: Daniel P. Berrangé <berrange@redhat.com>
Acked-by: Laurent Vivier <laurent@vivier.eu>
# gpg: Signature made Wed 22 May 2019 19:36:43 BST
# gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg: issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F
* remotes/rth/tags/pull-rng-20190522: (25 commits)
target/i386: Implement CPUID_EXT_RDRAND
target/ppc: Use qemu_guest_getrandom for DARN
target/ppc: Use gen_io_start/end around DARN
target/arm: Implement ARMv8.5-RNG
target/arm: Put all PAC keys into a structure
hw/misc/exynos4210_rng: Use qemu_guest_getrandom
hw/misc/bcm2835_rng: Use qemu_guest_getrandom_nofail
hw/misc/nrf51_rng: Use qemu_guest_getrandom_nofail
aspeed/scu: Use qemu_guest_getrandom_nofail
linux-user: Remove srand call
linux-user/aarch64: Use qemu_guest_getrandom for PAUTH keys
linux-user: Use qemu_guest_getrandom_nofail for AT_RANDOM
linux-user: Call qcrypto_init if not using -seed
linux-user: Initialize pseudo-random seeds for all guest cpus
cpus: Initialize pseudo-random seeds for all guest cpus
util: Add qemu_guest_getrandom and associated routines
ui/vnc: Use gcrypto_random_bytes for start_auth_vnc
ui/vnc: Split out authentication_failed
crypto: Change the qcrypto_random_bytes buffer type to void*
crypto: Use getrandom for qcrypto_random_bytes
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This instruction raises #GP, aka SIGSEGV, if the effective address
is not aligned to 16-bytes.
We have assertions in tcg-op-gvec.c that the offset from ENV is
aligned, for vector types <= V128. But the offset itself does not
validate that the final pointer is aligned -- one must also remember
to use the QEMU_ALIGNED() attribute on the vector member within ENV.
PowerPC Altivec has vector load/store instructions that silently
discard the low 4 bits of the address, making alignment mistakes
difficult to discover. Aid that by making the most popular host
visibly signal the error.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The allows immediates to be used for ORR and BIC,
as well as the trivial inversions, ORC and AND.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use MOVI+ORR or MVNI+BIC in order to build some vector constants,
as opposed to dropping them to the constant pool. This includes
all 16-bit constants and a similar set of 32-bit constants.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
There are several sub-classes of vector immediate, and only MOVI
can use them all. This will enable usage of MVNI and ORRI, which
use progressively fewer sub-classes.
This patch adds no new functionality, merely splits the function
and moves part of the logic into tcg_out_dupi_vec.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The instruction set has 3 insns that perform the same operation,
only varying in which operand must overlap the destination. We
can represent the operation without overlap and choose based on
the operands seen.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Using umin(a, b) == a as an expansion for TCG_COND_LEU is a
better alternative to (a - INT_MIN) <= (b - INT_MIN).
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We already had backend support for this feature. Expand the new
cmpsel opcode using vpblendb. The combination allows us to avoid
an extra NOT for some comparison codes.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
If INDEX_op_foo is always expanded by tcg_expand_vec_op, then
there may be no reasonable set of constraints to return from
tcg_target_op_def for that opcode.
Let TCG_TARGET_HAS_foo be specified as -1 in that case. Thus a
boolean test for TCG_TARGET_HAS_foo is true, but we will not
assert within process_op_defs when no constraints are specified.
Compare this with tcg_can_emit_vec_op, which already uses this
tri-state indication.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Perform a per-element conditional move. This combination operation is
easier to implement on some host vector units than plain cmp+bitsel.
Omit the usual gvec interface, as this is intended to be used by
target-specific gvec expansion call-backs.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This operation performs d = (b & a) | (c & ~a), and is present
on a majority of host vector units. Include gvec expanders.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The paths through tcg_gen_dup_mem_vec and through MO_128 were
missing the check_size_align. The path through MO_128 was also
missing the expand_clr. This last was not visible because the
only user is ARM SVE, which would set oprsz == maxsz, and not
require the clear.
Fix by adding the check_size_align and using do_dup directly
instead of duplicating the check in tcg_gen_gvec_dup_{i32,i64}.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The VBROADCASTSD instruction only allows %ymm registers as destination.
Rather than forcing VEX.L and writing to the entire 256-bit register,
revert to using MOVDDUP with an %xmm register. This is sufficient for
an avx1 host since we do not support TCG_TYPE_V256 for that case.
Also fix the 32-bit avx2, which should have used VPBROADCASTW.
Fixes: 1e262b49b5
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Sanitize interp_info structure in load_elf_binary() and, for MIPS only,
init its field fp_abi to MIPS_ABI_FP_UNKNOWN. This fixes appearances of
"Unexpected FPU mode" message in some MIPS use cases. Currently, this
bug is a complete stopper for some MIPS binaries.
In load_elf_binary(), struct image_info interp_info is used without
being properly initialized. One result is that when the ELF's program
header doesn't contain an entry for the ABI flags, then the value of
the struct image_info's fp_abi field is set to whatever happened to
be in stack memory at the time.
Backporting to 4.0 and, if possible, to 3.1 is recommended.
Fixes: https://bugs.launchpad.net/qemu/+bug/1825002
Signed-off-by: Daniel Santos <daniel.santos@pobox.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1558282527-22183-6-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Add support for getting and setting extended private flags of a
network device via SIOCSIFPFLAGS and SIOCGIFPFLAGS ioctls.
The ioctl numeric values are platform-independent and determined by
the file include/uapi/linux/sockios.h in Linux kernel source code:
#define SIOCSIFPFLAGS 0x8934
#define SIOCGIFPFLAGS 0x8935
These ioctls get (or set) the field ifr_flags of type short in the
structure ifreq. Such functionality is achieved in QEMU by using
MK_STRUCT() and MK_PTR() macros with an appropriate argument, as
it was done for existing similar cases.
Signed-off-by: Neng Chen <nchen@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1554839486-3527-1-git-send-email-aleksandar.markovic@rt-rk.com>
Message-Id: <1558282527-22183-4-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Add support for setting the process (or process group) to receive SIGIO
or SIGURG signals when I/O becomes possible or urgent data is available,
using SIOCSPGRP ioctl.
The ioctl numeric values for SIOCSPGRP are platform-dependent and are
determined by following files in Linux kernel source tree:
arch/ia64/include/uapi/asm/sockios.h:#define SIOCSPGRP 0x8902
arch/mips/include/uapi/asm/sockios.h:#define SIOCSPGRP _IOW('s', 8, pid_t)
arch/parisc/include/uapi/asm/sockios.h:#define SIOCSPGRP 0x8902
arch/sh/include/uapi/asm/sockios.h:#define SIOCSPGRP _IOW('s', 8, pid_t)
arch/xtensa/include/uapi/asm/sockios.h:#define SIOCSPGRP _IOW('s', 8, pid_t)
arch/alpha/include/uapi/asm/sockios.h:#define SIOCSPGRP _IOW('s', 8, pid_t)
arch/sparc/include/uapi/asm/sockios.h:#define SIOCSPGRP 0x8902
include/uapi/asm-generic/sockios.h:#define SIOCSPGRP 0x8902
Hence the different definition for alpha, mips, sh4, and xtensa.
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1558282527-22183-3-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Fix support for the SIOCATMARK and SIOCGPGRP ioctls for xtensa by
correcting corresponding macro definition.
Values for TARGET_SIOCATMARK and TARGET_SIOCGPGRP are determined by
Linux kernel. Following relevant lines (obtained by grep) are from
the kernel source tree:
arch/ia64/include/uapi/asm/sockios.h:#define SIOCATMARK 0x8905
arch/mips/include/uapi/asm/sockios.h:#define SIOCATMARK _IOR('s', 7, int)
arch/parisc/include/uapi/asm/sockios.h:#define SIOCATMARK 0x8905
arch/sh/include/uapi/asm/sockios.h:#define SIOCATMARK _IOR('s', 7, int)
arch/xtensa/include/uapi/asm/sockios.h:#define SIOCATMARK _IOR('s', 7, int)
arch/alpha/include/uapi/asm/sockios.h:#define SIOCATMARK _IOR('s', 7, int)
arch/sparc/include/uapi/asm/sockios.h:#define SIOCATMARK 0x8905
include/uapi/asm-generic/sockios.h:#define SIOCATMARK 0x8905
arch/ia64/include/uapi/asm/sockios.h:#define SIOCGPGRP 0x8904
arch/mips/include/uapi/asm/sockios.h:#define SIOCGPGRP _IOR('s', 9, pid_t)
arch/parisc/include/uapi/asm/sockios.h:#define SIOCGPGRP 0x8904
arch/sh/include/uapi/asm/sockios.h:#define SIOCGPGRP _IOR('s', 9, pid_t)
arch/xtensa/include/uapi/asm/sockios.h:#define SIOCGPGRP _IOR('s', 9, pid_t)
arch/alpha/include/uapi/asm/sockios.h:#define SIOCGPGRP _IOR('s', 9, pid_t)
arch/sparc/include/uapi/asm/sockios.h:#define SIOCGPGRP 0x8904
include/uapi/asm-generic/sockios.h:#define SIOCGPGRP 0x8904
It is visible from above that xtensa should have the same definitions
as alpha, mips and sh4 already do. This patch brings QEMU to the accurate
state wrt these two ioctls.
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1558282527-22183-2-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Debian console-setup uses /proc/hardware to guess the keyboard layout.
If the file /proc/hardware cannot be opened, the installation fails.
This patch adds a pseudo /proc/hardware file to report the model of
the machine. Instead of reporting a known and fake model, it
reports "qemu-m68k", which is true, and avoids to set the configuration
for an Amiga/Apple/Atari and let the user to chose the good one.
Bug: https://github.com/vivier/qemu-m68k/issues/34
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20190517133149.19593-3-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
SPARC libc6 debian package wants to check the cpu level to be
installed or not:
WARNING: This machine has a SPARC V8 or earlier class processor.
Debian lenny and later does not support such old hardware
any longer.
To avoid this, it only needs to know if the machine type is sun4u or sun4v,
for that it reads the information from /proc/cpuinfo.
Fixes: 9a93c152fc
("linux-user: fix UNAME_MACHINE for sparc/sparc64")
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20190517133149.19593-2-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
We now have an interface for guest visible random numbers.
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We now have an interface for guest visible random numbers.
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Generating a random number counts as I/O, as it cannot be
replayed and produce the same results.
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use the newly introduced infrastructure for guest random numbers.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This allows us to use a single syscall to initialize them all.
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The random number is intended for use by the guest. As such, we should
honor the -seed argument for reproducibility.
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The random number is intended for use by the guest. As such, we should
honor the -seed argument for reproducibility. Use the *_nofail routine
instead of rolling our own error handling locally.
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The random number is intended for use by the guest. As such, we should
honor the -seed argument for reproducibility. Use the *_nofail routine
instead of error_abort directly.
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The random number is intended for use by the guest. As such, we should
honor the -seed argument for reproducibility. Use the *_nofail routine
instead of rolling our own error handling locally.
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We no longer use rand() within linux-user.
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use a better interface for random numbers than rand() * 3.
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use a better interface for random numbers than rand * 16.
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
When not using -seed, we will use the crypto subsystem
for random numbers.
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
When the -seed option is given, call qemu_guest_random_seed_main,
putting the subsystem into deterministic mode. Pass derived seeds
to each cpu created during clone; which is a no-op unless the
subsystem is in deterministic mode.
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
When the -seed option is given, call qemu_guest_random_seed_main,
putting the subsystem into deterministic mode. Pass derived seeds
to each cpu created; which is a no-op unless the subsystem is in
deterministic mode.
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This routine is intended to produce high-quality random numbers to the
guest. Normally, such numbers are crypto quality from the host, but a
command-line option can force the use of a fully deterministic sequence
for use while debugging.
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use a better interface for random numbers than rand().
Fail gracefully if for some reason we cannot use the crypto system.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
