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2020-09-01target/arm: Use macros instead of open-coding fp16 conversion helpersPeter Maydell
Now the VFP_CONV_FIX macros can handle fp16's distinction between the width of the operation and the width of the type used to pass operands, use the macros rather than the open-coded functions. This creates an extra six helper functions, all of which we are going to need for the AArch32 VFP fp16 instructions. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200828183354.27913-15-peter.maydell@linaro.org
2020-09-01target/arm: Make VFP_CONV_FIX macros take separate float type and float sizePeter Maydell
Currently the VFP_CONV_FIX macros take a single fsz argument for the size of the float type, which is used both to select the name of the functions to call (eg float32_is_any_nan()) and also for the type to use for the float inputs and outputs (eg float32). Separate these into fsz and ftype arguments, so that we can use them for fp16, which uses 'float16' in the function names but is still passing inputs and outputs in a 32-bit sized type. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200828183354.27913-14-peter.maydell@linaro.org
2020-09-01target/arm: Implement VFP fp16 VCVT between float and integerPeter Maydell
Implement the fp16 versions of the VFP VCVT instruction forms which convert between floating point and integer. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200828183354.27913-13-peter.maydell@linaro.org
2020-09-01target/arm: Implement VFP fp16 VLDR and VSTRPeter Maydell
Implement the fp16 versions of the VFP VLDR/VSTR (immediate). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200828183354.27913-12-peter.maydell@linaro.org
2020-09-01target/arm: Implement VFP fp16 VCMPPeter Maydell
Implement fp16 version of VCMP. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200828183354.27913-11-peter.maydell@linaro.org
2020-09-01target/arm: Implement VFP fp16 for VMOV immediatePeter Maydell
Implement VFP fp16 support for the VMOV immediate insn. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200828183354.27913-10-peter.maydell@linaro.org
2020-09-01target/arm: Implement VFP fp16 for VABS, VNEG, VSQRTPeter Maydell
Implement VFP fp16 for VABS, VNEG and VSQRT. This is all the fp16 insns that use the DO_VFP_2OP macro, because there is no fp16 version of VMOV_reg. Notes: * the gen_helper_vfp_negh already exists as we needed to create it for the fp16 multiply-add insns * as usual we need to use the f16 version of the fp_status; this is only relevant for VSQRT Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200828183354.27913-9-peter.maydell@linaro.org
2020-09-01target/arm: Macroify uses of do_vfp_2op_sp() and do_vfp_2op_dp()Peter Maydell
Macroify the uses of do_vfp_2op_sp() and do_vfp_2op_dp(); this will make it easier to add the halfprec support. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200828183354.27913-8-peter.maydell@linaro.org
2020-09-01target/arm: Implement VFP fp16 for fused-multiply-addPeter Maydell
Implement VFP fp16 support for fused multiply-add insns VFNMA, VFNMS, VFMA, VFMS. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200828183354.27913-7-peter.maydell@linaro.org
2020-09-01target/arm: Macroify trans functions for VFMA, VFMS, VFNMA, VFNMSPeter Maydell
Macroify creation of the trans functions for single and double precision VFMA, VFMS, VFNMA, VFNMS. The repetition was OK for two sizes, but we're about to add halfprec and it will get a bit more than seems reasonable. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200828183354.27913-6-peter.maydell@linaro.org
2020-09-01target/arm: Implement VFP fp16 VMLA, VMLS, VNMLS, VNMLA, VNMULPeter Maydell
Implement fp16 versions of the VFP VMLA, VMLS, VNMLS, VNMLA, VNMUL instructions. (These are all the remaining ones which we implement via do_vfp_3op_[hsd]p().) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200828183354.27913-5-peter.maydell@linaro.org
2020-09-01target/arm: Implement VFP fp16 for VFP_BINOP operationsPeter Maydell
Implmeent VFP fp16 support for simple binary-operator VFP insns VADD, VSUB, VMUL, VDIV, VMINNM and VMAXNM: * make the VFP_BINOP() macro generate float16 helpers as well as float32 and float64 * implement a do_vfp_3op_hp() function similar to the existing do_vfp_3op_sp() * add decode for the half-precision insn patterns Note that the VFP_BINOP macro use creates a couple of unused helper functions vfp_maxh and vfp_minh, but they're small so it's not worth splitting the BINOP operations into "needs halfprec" and "no halfprec" groups. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200828183354.27913-4-peter.maydell@linaro.org
2020-09-01target/arm: Use correct ID register check for aa32_fp16_arithPeter Maydell
The aa32_fp16_arith feature check function currently looks at the AArch64 ID_AA64PFR0 register. This is (as the comment notes) not correct. The bogus check was put in mostly to allow testing of the fp16 variants of the VCMLA instructions and it was something of a mistake that we allowed them to exist in master. Switch the feature check function to testing VMFR1.FPHP, which is what it ought to be. This will remove emulation of the VCMLA and VCADD insns from AArch32 code running on an AArch64 '-cpu max' using system emulation. (They were never enabled for aarch32 linux-user and system-emulation.) Since we weren't advertising their existence via the AArch32 ID register, well-behaved guests wouldn't have been using them anyway. Once we have implemented all the AArch32 support for the FP16 extension we will advertise it in the MVFR1 ID register field, which will reenable these insns along with all the others. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200828183354.27913-3-peter.maydell@linaro.org
2020-09-01target/arm: Remove local definitions of float constantsPeter Maydell
In several places the target/arm code defines local float constants for 2, 3 and 1.5, which are also provided by include/fpu/softfloat.h. Remove the unnecessary local duplicate versions. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200828183354.27913-2-peter.maydell@linaro.org
2020-08-31Merge remote-tracking branch 'remotes/kraxel/tags/usb-20200831-pull-request' ↵Peter Maydell
into staging usb: usb_packet_map fixes for ehci and xhci. usb: setup_len fix (CVE-2020-14364). usb: u2f key support (GSoC). * v2: 32bit build fixed. * v3: libu2f-emu dependency fixed. # gpg: Signature made Mon 31 Aug 2020 09:32:49 BST # gpg: using RSA key 4CB6D8EED3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full] # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" [full] # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full] # Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138 * remotes/kraxel/tags/usb-20200831-pull-request: usb: fix setup_len init (CVE-2020-14364) usb-host: workaround libusb bug hw/usb: Add U2F device autoscan to passthru mode hw/usb: Add U2F device check to passthru mode scripts: Add u2f-setup-gen script docs/qdev-device-use.txt: Add USB U2F key to the QDEV devices examples docs/system: Add U2F key to the USB devices examples meson: Add U2F key to meson hw/usb: Add U2F key emulated mode hw/usb: Add U2F key passthru mode hw/usb: Add U2F key base class implementation hw/usb: Add U2F key base class docs: Add USB U2F key device documentation hw/usb: Regroup USB HID protocol values ehci: drop pointless warn_report for guest bugs. hw: ehci: check return value of 'usb_packet_map' hw: ehci: destroy sglist in error path hw: xhci: check return value of 'usb_packet_map' Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-08-31usb: fix setup_len init (CVE-2020-14364)Gerd Hoffmann
Store calculated setup_len in a local variable, verify it, and only write it to the struct (USBDevice->setup_len) in case it passed the sanity checks. This prevents other code (do_token_{in,out} functions specifically) from working with invalid USBDevice->setup_len values and overrunning the USBDevice->setup_buf[] buffer. Fixes: CVE-2020-14364 Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Tested-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Li Qiang <liq3ea@gmail.com> Message-id: 20200825053636.29648-1-kraxel@redhat.com
2020-08-31usb-host: workaround libusb bugGerd Hoffmann
libusb_get_device_speed() does not work for libusb_wrap_sys_device() devices in v1.0.23. Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1871090 Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 20200824110057.32089-1-kraxel@redhat.com
2020-08-31hw/usb: Add U2F device autoscan to passthru modeCésar Belley
This patch adds an autoscan to let u2f-passthru choose the first U2F device it finds. The autoscan is performed using libudev with an enumeration of all the hidraw devices present on the host. The first device which happens to be a U2F device is taken to do the passtru. Signed-off-by: César Belley <cesar.belley@lse.epita.fr> Message-id: 20200826114209.28821-13-cesar.belley@lse.epita.fr Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31hw/usb: Add U2F device check to passthru modeCésar Belley
This patchs adds a check to verify that the device passed through the hidraw property is a U2F device. The check is done by ensuring that the first values of the report descriptor (USAGE PAGE and USAGE) correspond to those of a U2F device. Signed-off-by: César Belley <cesar.belley@lse.epita.fr> Message-id: 20200826114209.28821-12-cesar.belley@lse.epita.fr Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31scripts: Add u2f-setup-gen scriptCésar Belley
This patch adds the script used to generate setup directories, needed for the device u2f-emulated configuration in directory mode: python u2f-setup-gen.py $DIR qemu -usb -device u2f-emulated,dir=$DIR Signed-off-by: César Belley <cesar.belley@lse.epita.fr> Message-id: 20200826114209.28821-11-cesar.belley@lse.epita.fr Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31docs/qdev-device-use.txt: Add USB U2F key to the QDEV devices examplesCésar Belley
Signed-off-by: César Belley <cesar.belley@lse.epita.fr> Message-id: 20200826114209.28821-10-cesar.belley@lse.epita.fr Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31docs/system: Add U2F key to the USB devices examplesCésar Belley
Signed-off-by: César Belley <cesar.belley@lse.epita.fr> Message-id: 20200826114209.28821-9-cesar.belley@lse.epita.fr Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31meson: Add U2F key to mesonCésar Belley
Signed-off-by: César Belley <cesar.belley@lse.epita.fr> Message-id: 20200826114209.28821-8-cesar.belley@lse.epita.fr [ fixes suggested by paolo ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31hw/usb: Add U2F key emulated modeCésar Belley
This patch adds the U2F key emulated mode. The emulated mode consists of completely emulating the behavior of a U2F device through software part. Libu2f-emu is used for that. The emulated mode is associated with a device inheriting from u2f-key base. To work, an emulated U2F device must have differents elements which can be given in different ways. This is detailed in docs/u2f.txt. The Ephemeral one is the simplest way to configure, it lets the device generate all the elements it needs for a single use of the lifetime of the device: qemu -usb -device u2f-emulated For more information about libu2f-emu see this page: https://github.com/MattGorko/libu2f-emu. Signed-off-by: César Belley <cesar.belley@lse.epita.fr> Message-id: 20200826114209.28821-7-cesar.belley@lse.epita.fr Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31hw/usb: Add U2F key passthru modeCésar Belley
This patch adds the U2F key pass-through mode. The pass-through mode consists of passing all requests made from the guest to the physical security key connected to the host machine and vice versa. In addition, the dedicated pass-through allows to have a U2F security key shared on several guests which is not possible with a simple host device assignment pass-through. The pass-through mode is associated with a device inheriting from u2f-key base. To work, it needs the path to a U2F hidraw, obtained from the Qemu command line, and passed by the user: qemu -usb -device u2f-passthru,hidraw=/dev/hidrawX Autoscan and U2F compatibility checking features are given at the end of the patch series. Signed-off-by: César Belley <cesar.belley@lse.epita.fr> Message-id: 20200826114209.28821-6-cesar.belley@lse.epita.fr Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31hw/usb: Add U2F key base class implementationCésar Belley
This patch adds the U2F key base class implementation. The U2F key base mainly takes care of the HID interfacing with guest. On the one hand, it retrieves the guest U2FHID packets and transmits them to the variant associated according to the mode: pass-through or emulated. On the other hand, it provides the public API used by its variants to send U2FHID packets to the guest. Signed-off-by: César Belley <cesar.belley@lse.epita.fr> Message-id: 20200826114209.28821-5-cesar.belley@lse.epita.fr Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31hw/usb: Add U2F key base classCésar Belley
This patch adds the specification for the U2F key base class. Used to group the common characteristics, this device class will be inherited by its two variants, corresponding to the two modes: passthrough and emulated This prepares the U2F devices hierarchy which is as follow: USB device -> u2f-key -> {u2f-passthru, u2f-emulated}. Signed-off-by: César Belley <cesar.belley@lse.epita.fr> Message-id: 20200826114209.28821-4-cesar.belley@lse.epita.fr Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31docs: Add USB U2F key device documentationCésar Belley
Add USB U2F key device documentation: - USB U2F key device - Building - Using u2f-emulated - Using u2f-passthru - Libu2f-emu Signed-off-by: César Belley <cesar.belley@lse.epita.fr> Message-id: 20200826114209.28821-3-cesar.belley@lse.epita.fr Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31hw/usb: Regroup USB HID protocol valuesCésar Belley
Group some HID values that are used pretty much everywhere when dealing with HID devices. Signed-off-by: César Belley <cesar.belley@lse.epita.fr> Message-id: 20200812094135.20550-2-cesar.belley@lse.epita.fr Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31ehci: drop pointless warn_report for guest bugs.Gerd Hoffmann
We have a tracepoint at the same place which can be enabled if needed. Buglink: https://bugzilla.redhat.com//show_bug.cgi?id=1859236 Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20200722072613.10390-1-kraxel@redhat.com>
2020-08-31hw: ehci: check return value of 'usb_packet_map'Li Qiang
If 'usb_packet_map' fails, we should stop to process the usb request. Signed-off-by: Li Qiang <liq3ea@163.com> Message-Id: <20200812161727.29412-1-liq3ea@163.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31hw: ehci: destroy sglist in error pathLi Qiang
This may cause resource leak. Signed-off-by: Li Qiang <liq3ea@163.com> Message-Id: <20200812161712.29361-1-liq3ea@163.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31hw: xhci: check return value of 'usb_packet_map'Li Qiang
Currently we don't check the return value of 'usb_packet_map', this will cause an UAF issue. This is LP#1891341. Following is the reproducer provided in: -->https://bugs.launchpad.net/qemu/+bug/1891341 cat << EOF | ./i386-softmmu/qemu-system-i386 -device nec-usb-xhci \ -trace usb\* -device usb-audio -device usb-storage,drive=mydrive \ -drive id=mydrive,file=null-co://,size=2M,format=raw,if=none \ -nodefaults -nographic -qtest stdio outl 0xcf8 0x80001016 outl 0xcfc 0x3c009f0d outl 0xcf8 0x80001004 outl 0xcfc 0xc77695e writel 0x9f0d000000000040 0xffff3655 writeq 0x9f0d000000002000 0xff2f9e0000000000 write 0x1d 0x1 0x27 write 0x2d 0x1 0x2e write 0x17232 0x1 0x03 write 0x17254 0x1 0x06 write 0x17278 0x1 0x34 write 0x3d 0x1 0x27 write 0x40 0x1 0x2e write 0x41 0x1 0x72 write 0x42 0x1 0x01 write 0x4d 0x1 0x2e write 0x4f 0x1 0x01 writeq 0x9f0d000000002000 0x5c051a0100000000 write 0x34001d 0x1 0x13 write 0x340026 0x1 0x30 write 0x340028 0x1 0x08 write 0x34002c 0x1 0xfe write 0x34002d 0x1 0x08 write 0x340037 0x1 0x5e write 0x34003a 0x1 0x05 write 0x34003d 0x1 0x05 write 0x34004d 0x1 0x13 writeq 0x9f0d000000002000 0xff00010100400009 EOF This patch fixes this. Buglink: https://bugs.launchpad.net/qemu/+bug/1891341 Reported-by: Alexander Bulekov <alxndr@bu.edu> Signed-off-by: Li Qiang <liq3ea@163.com> Message-id: 20200812153139.15146-1-liq3ea@163.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-30Merge remote-tracking branch 'remotes/rth/tags/pull-sf-20200829' into stagingPeter Maydell
* float16 comparison wrappers * float16 conversions to/from 8-bit integers * bfloat16 support # gpg: Signature made Sun 30 Aug 2020 03:29:54 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-sf-20200829: softfloat: Define comparison operations for bfloat16 softfloat: Define misc operations for bfloat16 softfloat: Define convert operations for bfloat16 softfloat: Define operations for bfloat16 softfloat: Add float16_is_normal softfloat: Add fp16 and uint8/int8 conversion functions softfloat: Implement the full set of comparisons for float16 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-08-29softfloat: Define comparison operations for bfloat16Richard Henderson
Reviewed-by: LIU Zhiwei <zhiwei_liu@c-sky.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-08-28Merge remote-tracking branch ↵Peter Maydell
'remotes/vivier2/tags/linux-user-for-5.2-pull-request' into staging add utimensat_time64, semtimedop_time64, rt_sigtimedwait_time64, sched_rr_get_interval_time64, clock_nanosleep_time64, clock_adjtime64, mq_timedsend_time64, mq_timedreceive_time64 fix semop, semtimedop, clock_nanosleep, mq_timedsend, target_to_host_timespec64 fix tembits.h add more strace function Add upport DRM_IOCTL_I915_GETPARAM detect mismatched ELF ABI in qemu-mips[n32][el] # gpg: Signature made Fri 28 Aug 2020 14:37:33 BST # gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C # gpg: issuer "laurent@vivier.eu" # gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full] # gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full] # gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full] # Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C * remotes/vivier2/tags/linux-user-for-5.2-pull-request: linux-user: Add support for utimensat_time64() and semtimedop_time64() linux-user: Add support for 'rt_sigtimedwait_time64()' and 'sched_rr_get_interval_time64()' linux-user: Add support for 'clock_nanosleep_time64()' and 'clock_adjtime64()' linux-user: Add support for 'mq_timedsend_time64()' and 'mq_timedreceive_time64()' linux-user: fix target_to_host_timespec64() linux-user: Fix 'mq_timedsend()' and 'mq_timedreceive()' linux-user: detect mismatched ELF ABI in qemu-mips[n32][el] linux-user: Add strace support for printing arguments for ioctls used for terminals and serial lines linux-user: Add missing termbits types and values definitions linux-user: Add generic 'termbits.h' for some archs linux-user: Add strace support for printing arguments of some clock and time functions linux-user: Add an api to print enumareted argument values with strace linux-user: Add strace support for printing arguments of syscalls used to lock and unlock memory linux-user: Add strace support for printing arguments of truncate()/ftruncate() and getsid() linux-user: Make cpu_env accessible in strace.c linux-user: syscall: ioctls: support DRM_IOCTL_I915_GETPARAM linux-user: Fix 'clock_nanosleep()' implementation linux-user: Fix 'semop()' and 'semtimedop()' implementation Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-08-28softfloat: Define misc operations for bfloat16LIU Zhiwei
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20200813071421.2509-4-zhiwei_liu@c-sky.com> [rth: Fix merge conflict with NO_SIGNALING_NANS; use bool for predicates.] Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-08-28softfloat: Define convert operations for bfloat16LIU Zhiwei
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20200813071421.2509-3-zhiwei_liu@c-sky.com> [rth: Use FloatRoundMode for conversion functions.] Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-08-28softfloat: Define operations for bfloat16LIU Zhiwei
This patch implements operations for bfloat16 except conversion and some misc operations. We also add FloatFmt and pack/unpack interfaces for bfloat16. As they are both static fields, we can't make a sperate patch for them. Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20200813071421.2509-2-zhiwei_liu@c-sky.com> [rth: Use FloatRelation for comparison operations.] Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-08-28softfloat: Add float16_is_normalStephen Long
This float16 predicate was missing from the normal set. Signed-off-by: Stephen Long <steplong@quicinc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-08-28softfloat: Add fp16 and uint8/int8 conversion functionsFrank Chang
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Frank Chang <frank.chang@sifive.com> Message-Id: <1596102747-20226-4-git-send-email-chihmin.chao@sifive.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-08-28softfloat: Implement the full set of comparisons for float16Kito Cheng
Implement them in softfloat and remove the local versions in riscv. Signed-off-by: Kito Cheng <kito.cheng@sifive.com> Signed-off-by: Chih-Min Chao <chihmin.chao@sifive.com> Acked-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <1596102747-20226-2-git-send-email-chihmin.chao@sifive.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-08-28Merge remote-tracking branch ↵Peter Maydell
'remotes/dgilbert/tags/pull-migration-20200828a' into staging Migration and virtiofsd pull 2020-08-28 Migration: vsock support for migration minor fixes virtiofsd: Disable remote posix locks by default - because we never supported blocking variants and this breaks things Some prep work for un/less priviliged modes Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> # gpg: Signature made Fri 28 Aug 2020 13:43:18 BST # gpg: using RSA key 45F5C71B4A0CB7FB977A9FA90516331EBC5BFDE7 # gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>" [full] # Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A 9FA9 0516 331E BC5B FDE7 * remotes/dgilbert/tags/pull-migration-20200828a: virtiofsd: probe unshare(CLONE_FS) and print an error virtiofsd: drop CAP_DAC_READ_SEARCH virtiofsd: Remove "norace" from cmdline help and docs virtiofsd: Disable remote posix locks by default migration: tls: fix memory leak in migration_tls_get_creds migration: improve error reporting of block driver state name migration: add vsock as data channel support migration: unify the framework of socket-type channel Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-08-28Merge remote-tracking branch ↵Peter Maydell
'remotes/pmaydell/tags/pull-target-arm-20200828' into staging target-arm queue: * target/arm: Cleanup and refactoring preparatory to SVE2 * armsse: Define ARMSSEClass correctly * hw/misc/unimp: Improve information provided in log messages * hw/qdev-clock: Avoid calling qdev_connect_clock_in after DeviceRealize * hw/arm/xilinx_zynq: Call qdev_connect_clock_in() before DeviceRealize * hw/net/allwinner-sun8i-emac: Use AddressSpace for DMA transfers * hw/sd/allwinner-sdhost: Use AddressSpace for DMA transfers * target/arm: Fill in the WnR syndrome bit in mte_check_fail * target/arm: Clarify HCR_EL2 ARMCPRegInfo type * hw/arm/musicpal: Use AddressSpace for DMA transfers * hw/clock: Minor cleanups * hw/arm/sbsa-ref: fix typo breaking PCIe IRQs # gpg: Signature made Fri 28 Aug 2020 10:23:02 BST # gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE # gpg: issuer "peter.maydell@linaro.org" # gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate] # gpg: aka "Peter Maydell <pmaydell@gmail.com>" [ultimate] # gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate] # Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE * remotes/pmaydell/tags/pull-target-arm-20200828: (35 commits) target/arm: Convert sq{, r}dmulh to gvec for aa64 advsimd target/arm: Convert integer multiply-add (indexed) to gvec for aa64 advsimd target/arm: Convert integer multiply (indexed) to gvec for aa64 advsimd target/arm: Generalize inl_qrdmlah_* helper functions target/arm: Tidy SVE tszimm shift formats target/arm: Split out gen_gvec_ool_zz target/arm: Split out gen_gvec_ool_zzz target/arm: Split out gen_gvec_ool_zzp target/arm: Merge helper_sve_clr_* and helper_sve_movz_* target/arm: Split out gen_gvec_ool_zzzp target/arm: Use tcg_gen_gvec_bitsel for trans_SEL_pppp target/arm: Clean up 4-operand predicate expansion target/arm: Merge do_vector2_p into do_mov_p target/arm: Rearrange {sve,fp}_check_access assert target/arm: Split out gen_gvec_fn_zzz, do_zzz_fn target/arm: Split out gen_gvec_fn_zz qemu/int128: Add int128_lshift armsse: Define ARMSSEClass correctly hw/misc/unimp: Display the offset with width of the region size hw/misc/unimp: Display the value with width of the access size ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-08-28linux-user: Add support for utimensat_time64() and semtimedop_time64()Filip Bozuta
This patch introduces functionality for following time64 syscalls: *utimensat_time64() int utimensat(int dirfd, const char *pathname, const struct timespec times[2], int flags); -- change file timestamps with nanosecond precision -- man page: https://man7.org/linux/man-pages/man2/utimensat.2.html *semtimedop_time64() int semtimedop(int semid, struct sembuf *sops, size_t nsops, const struct timespec *timeout); -- System V semaphore operations -- man page: https://www.man7.org/linux/man-pages/man2/semtimedop.2.html Implementation notes: Syscall 'utimensat_time64()' is implemented in similar way as its regular variants only difference being that time64 converting function is used to convert values of 'struct timespec' between host and target ('target_to_host_timespec64()'). For syscall 'semtimedop_time64()' and additional argument is added in function 'do_semtimedop()' through which the aproppriate 'struct timespec' converting function is called (false for regular target_to_host_timespec() and true for target_to_host_timespec64()). For 'do_ipc()' a check was added as that additional argument: 'TARGET_ABI_BITS == 64'. Signed-off-by: Filip Bozuta <Filip.Bozuta@syrmia.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20200824223050.92032-3-Filip.Bozuta@syrmia.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-08-28linux-user: Add support for 'rt_sigtimedwait_time64()' and ↵Filip Bozuta
'sched_rr_get_interval_time64()' This patch implements functionality for following time64 syscalls: *rt_sigtimedwait_time64() This is a year 2038 safe variant of syscall: int rt_sigtimedwait(const sigset_t *set, siginfo_t *info, const struct timespec *timeout, size_t sigsetsize) --synchronously wait for queued signals-- man page: https://man7.org/linux/man-pages/man2/rt_sigtimedwait.2.html *sched_rr_get_interval_time64() This is a year 2038 safe variant of syscall: int sched_rr_get_interval(pid_t pid, struct timespec *tp) --get the SCHED_RR interval for the named process-- man page: https://man7.org/linux/man-pages/man2/sched_rr_get_interval.2.html Implementation notes: These syscalls were implemented in similar ways like 'rt_sigtimedwait()' and 'sched_rr_get_interval()' except that functions 'target_to_host_timespec64()' and 'host_to_target_timespec64()' were used to convert values of 'struct timespec' between host and target. Signed-off-by: Filip Bozuta <Filip.Bozuta@syrmia.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20200824192116.65562-3-Filip.Bozuta@syrmia.com> [lv: add missing defined(TARGET_NR_rt_sigtimedwait_time64)] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-08-28linux-user: Add support for 'clock_nanosleep_time64()' and 'clock_adjtime64()'Filip Bozuta
This patch implements functionality for following time64 syscall: *clock_nanosleep_time64() This is a year 2038 safe vairant of syscall: int clock_nanosleep(clockid_t clockid, int flags, const struct timespec *request, struct timespec *remain) --high-resolution sleep with specifiable clock-- man page: https://man7.org/linux/man-pages/man2/clock_nanosleep.2.html *clock_adjtime64() This is a year 2038 safe variant of syscall: int clock_adjtime(clockid_t clk_id, struct timex *buf) --tune kernel clock-- man page: https://man7.org/linux/man-pages/man2/clock_adjtime.2.html Implementation notes: Syscall 'clock_nanosleep_time64()' was implemented similarly to syscall 'clock_nanosleep()' except that 'host_to_target_timespec64()' and 'target_to_host_timespec64()' were used instead of the regular 'host_to_target_timespec()' and 'target_to_host_timespec()'. For 'clock_adjtime64()' a 64-bit target kernel version of 'struct timex' was defined in 'syscall_defs.h': 'struct target__kernel_timex'. This type was used to convert the values of 64-bit timex type between host and target. For this purpose a 64-bit timex converting functions 'target_to_host_timex64()' and 'host_to_target_timex64()'. An existing function 'copy_to_user_timeval64()' was used to convert the field 'time' which if of type 'struct timeval' from host to target. Function 'copy_from_user_timveal64()' was added in this patch and used to convert the 'time' field from target to host. Signed-off-by: Filip Bozuta <Filip.Bozuta@syrmia.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20200824192116.65562-2-Filip.Bozuta@syrmia.com> [lv: add missing ifdef's] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-08-28virtiofsd: probe unshare(CLONE_FS) and print an errorStefan Hajnoczi
An assertion failure is raised during request processing if unshare(CLONE_FS) fails. Implement a probe at startup so the problem can be detected right away. Unfortunately Docker/Moby does not include unshare in the seccomp.json list unless CAP_SYS_ADMIN is given. Other seccomp.json lists always include unshare (e.g. podman is unaffected): https://raw.githubusercontent.com/seccomp/containers-golang/master/seccomp.json Use "docker run --security-opt seccomp=path/to/seccomp.json ..." if the default seccomp.json is missing unshare. Cc: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20200727190223.422280-4-stefanha@redhat.com> Reviewed-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-08-28virtiofsd: drop CAP_DAC_READ_SEARCHStefan Hajnoczi
virtiofsd does not need CAP_DAC_READ_SEARCH because it already has the more powerful CAP_DAC_OVERRIDE. Drop it from the list of capabilities. This is important because container runtimes may not include CAP_DAC_READ_SEARCH by default. This patch allows virtiofsd to reduce its capabilities when running inside a Docker container. Note that CAP_DAC_READ_SEARCH may be necessary again in the future if virtiofsd starts using open_by_handle_at(2). Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20200727190223.422280-2-stefanha@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-08-28virtiofsd: Remove "norace" from cmdline help and docsSergio Lopez
Commit 93bb3d8d4cda ("virtiofsd: remove symlink fallbacks") removed the implementation of the "norace" option, so remove it from the cmdline help and the documentation too. Signed-off-by: Sergio Lopez <slp@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Message-Id: <20200717121110.50580-1-slp@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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