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* Merge remote-tracking branch 'remotes/philmd-gitlab/tags/led-api-20201026' ↵Peter Maydell2020-10-2814-43/+365
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into staging API to model LED. CI jobs results: . https://cirrus-ci.com/build/4879251751043072 . https://gitlab.com/philmd/qemu/-/pipelines/207661784 . https://travis-ci.org/github/philmd/qemu/builds/738958191 . https://app.shippable.com/github/philmd/qemu/runs/891/summary/console # gpg: Signature made Mon 26 Oct 2020 22:03:59 GMT # gpg: using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE # gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full] # Primary key fingerprint: FAAB E75E 1291 7221 DCFD 6BB2 E3E3 2C2C DEAD C0DE * remotes/philmd-gitlab/tags/led-api-20201026: hw/arm/tosa: Replace fprintf() calls by LED devices hw/misc/mps2-scc: Use the LED device hw/misc/mps2-fpgaio: Use the LED device hw/arm/aspeed: Add the 3 front LEDs drived by the PCA9552 #1 hw/misc/led: Emit a trace event when LED intensity has changed hw/misc/led: Allow connecting from GPIO output hw/misc/led: Add a LED device Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * hw/arm/tosa: Replace fprintf() calls by LED devicesPhilippe Mathieu-Daudé2020-10-262-25/+16Star
| | | | | | | | | | | | | | | | | | | | | | | | The recently added LED device reports LED status changes with the 'led_set_intensity' trace event. It is less invasive than the fprintf() calls. We need however to have a binary built with tracing support. Reviewed-by: Luc Michel <luc.michel@greensocs.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20200912134041.946260-8-f4bug@amsat.org>
| * hw/misc/mps2-scc: Use the LED devicePhilippe Mathieu-Daudé2020-10-264-12/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Per the 'ARM MPS2 and MPS2+ FPGA Prototyping Boards Technical Reference Manual' (100112_0200_07_en): 2.1 Overview of the MPS2 and MPS2+ hardware The MPS2 and MPS2+ FPGA Prototyping Boards contain the following components and interfaces: * User switches and user LEDs: - Two green LEDs and two push buttons that connect to the FPGA. - Eight green LEDs and one 8-way dip switch that connect to the MCC. Add the 8 LEDs connected to the MCC. This replaces the 'mps2_scc_leds' trace events by the generic 'led_set_intensity' event. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Luc Michel <luc.michel@greensocs.com> Message-Id: <20200912134041.946260-7-f4bug@amsat.org>
| * hw/misc/mps2-fpgaio: Use the LED devicePhilippe Mathieu-Daudé2020-10-264-6/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Per the 'ARM MPS2 and MPS2+ FPGA Prototyping Boards Technical Reference Manual' (100112_0200_07_en): 2.1 Overview of the MPS2 and MPS2+ hardware The MPS2 and MPS2+ FPGA Prototyping Boards contain the following components and interfaces: * User switches and user LEDs: - Two green LEDs and two push buttons that connect to the FPGA. - Eight green LEDs and one 8-way dip switch that connect to the MCC. Add the 2 LEDs connected to the FPGA. This replaces the 'mps2_fpgaio_leds' trace events by the generic 'led_set_intensity' event. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Luc Michel <luc.michel@greensocs.com> Message-Id: <20200912134041.946260-6-f4bug@amsat.org>
| * hw/arm/aspeed: Add the 3 front LEDs drived by the PCA9552 #1Philippe Mathieu-Daudé2020-10-262-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Witherspoon has 3 LEDs connected to a PCA9552. Add them. The names and reset values are taken from: https://github.com/open-power/witherspoon-xml/blob/master/witherspoon.xml Example booting obmc-phosphor-image: $ qemu-system-arm -M witherspoon-bmc -trace led_change_intensity 1592693373.997015:led_change_intensity LED desc:'front-fault-4' color:green intensity 0% -> 100% 1592693373.997632:led_change_intensity LED desc:'front-power-3' color:green intensity 0% -> 100% 1592693373.998239:led_change_intensity LED desc:'front-id-5' color:green intensity 0% -> 100% 1592693500.291805:led_change_intensity LED desc:'front-power-3' color:green intensity 100% -> 0% 1592693500.312041:led_change_intensity LED desc:'front-power-3' color:green intensity 0% -> 100% 1592693500.821254:led_change_intensity LED desc:'front-power-3' color:green intensity 100% -> 0% 1592693501.331517:led_change_intensity LED desc:'front-power-3' color:green intensity 0% -> 100% 1592693501.841367:led_change_intensity LED desc:'front-power-3' color:green intensity 100% -> 0% 1592693502.350839:led_change_intensity LED desc:'front-power-3' color:green intensity 0% -> 100% 1592693502.861134:led_change_intensity LED desc:'front-power-3' color:green intensity 100% -> 0% 1592693503.371090:led_change_intensity LED desc:'front-power-3' color:green intensity 0% -> 100% We notice the front-power LED starts to blink at a ~2Hz rate. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Luc Michel <luc.michel@greensocs.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20200912134041.946260-5-f4bug@amsat.org>
| * hw/misc/led: Emit a trace event when LED intensity has changedPhilippe Mathieu-Daudé2020-10-262-0/+5
| | | | | | | | | | | | | | | | | | Track the LED intensity, and emit a trace event when it changes. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Luc Michel <luc.michel@greensocs.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20200912134041.946260-4-f4bug@amsat.org>
| * hw/misc/led: Allow connecting from GPIO outputPhilippe Mathieu-Daudé2020-10-263-1/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some devices expose GPIO lines. Add a GPIO qdev input to our LED device, so we can connect a GPIO output using qdev_connect_gpio_out(). When used with GPIOs, the intensity can only be either minium or maximum. This depends of the polarity of the GPIO (which can be inverted). Declare the GpioPolarity type to model the polarity. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Luc Michel <luc.michel@greensocs.com> Message-Id: <20200912134041.946260-3-f4bug@amsat.org>
| * hw/misc/led: Add a LED devicePhilippe Mathieu-Daudé2020-10-266-0/+242
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a LED device which can be connected to a GPIO output. They can also be dimmed with PWM devices. For now we do not implement the dimmed mode, but in preparation of a future implementation, we start using the LED intensity. LEDs are limited to a fixed set of colors. Reviewed-by: Luc Michel <luc.michel@greensocs.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20200912134041.946260-2-f4bug@amsat.org>
* | Merge remote-tracking branch ↵Peter Maydell2020-10-273-3/+42
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'remotes/philmd-gitlab/tags/acceptance-testing-20201026' into staging Acceptance testing patches - More ARM tests - Documentation update CI jobs results: . https://cirrus-ci.com/build/5754555684093952 . https://gitlab.com/philmd/qemu/-/pipelines/207807648 # gpg: Signature made Mon 26 Oct 2020 19:06:52 GMT # gpg: using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE # gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full] # Primary key fingerprint: FAAB E75E 1291 7221 DCFD 6BB2 E3E3 2C2C DEAD C0DE * remotes/philmd-gitlab/tags/acceptance-testing-20201026: docs/devel/testing.rst: Update outdated Avocado URLs tests/acceptance: Allow running Orange Pi test using cached artifacts tests/acceptance: Add a 'virt_kvm' test using the GICv3 tests/boot_linux_console: Boot Trusted Firmware-A on the Raspberry Pi 3 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * | docs/devel/testing.rst: Update outdated Avocado URLsPhilippe Mathieu-Daudé2020-10-261-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | Avocado documentation referred returns 404 error. Update the broken links. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Cleber Rosa <crosa@redhat.com> Message-Id: <20201010080741.2932406-1-philmd@redhat.com>
| * | tests/acceptance: Allow running Orange Pi test using cached artifactsPhilippe Mathieu-Daudé2020-10-261-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unfortunately the Armbian 19.11.3 image has been removed from the dl.armbian.com file server. Developers having the artifact cached can still run the test. Allow them to, until we find a proper solution to share binaries with the whole community. This avoids (when file manually added to cache): BootLinuxConsole.test_arm_orangepi_bionic_19_11: CANCEL: Missing asset https://dl.armbian.com/orangepipc/archive/Armbian_19.11.3_Orangepipc_bionic_current_5.3.9.7z (1.06 s) Reported-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Bin Meng <bin.meng@windriver.com> Tested-by: Niek Linnenbank <nieklinnenbank@gmail.com> Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com> Message-Id: <20201023131808.3198005-3-f4bug@amsat.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
| * | tests/acceptance: Add a 'virt_kvm' test using the GICv3Philippe Mathieu-Daudé2020-10-261-1/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current 'virt_kvm' test is restricted to GICv2, but can also work with a GICv3. Duplicate it but add a GICv3 test which can be tested on some hardware. Noticed while running: $ avocado --show=app run -t machine:virt tests/acceptance/ ... (2/6) tests/acceptance/boot_linux.py:BootLinuxAarch64.test_virt_kvm: ERROR: Unexpected empty reply from server (1.82 s) The job.log content is: L0351 DEBUG| Output: 'qemu-system-aarch64: host does not support in-kernel GICv2 emulation\n' With this patch: $ avocado --show=app run -t device:gicv3 tests/acceptance/ (1/1) tests/acceptance/boot_linux.py:BootLinuxAarch64.test_virt_kvm_gicv3: PASS (55.10 s) Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Willian Rampazzo <willianr@redhat.com> Message-Id: <20200929224857.1225107-1-philmd@redhat.com>
| * | tests/boot_linux_console: Boot Trusted Firmware-A on the Raspberry Pi 3Philippe Mathieu-Daudé2020-10-261-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This test runs Trusted Firmware-A on the Raspberry Pi 3. We deliberately stop the boot process when the EDK2 UEFI version is displayed. The binary is build on AppVeyor CI using Pete Batard repository [1]. ATF v2.1 binary are used (see [2]). It is very simple and fast: $ avocado --show=app,console run -t atf tests/acceptance JOB ID : 1e748d7c9e9011cf0af3250ddc8ebf2389d6204e JOB LOG : avocado/job-results/job-2020-02-16T18.08-1e748d7/job.log (1/1) tests/acceptance/boot_linux_console.py:BootLinuxConsole.test_aarch64_raspi3_atf: console: NOTICE: Booting Trusted Firmware console: NOTICE: BL1: v2.1(release):v2.1 console: NOTICE: BL1: Built : 15:26:06, May 13 2019 console: NOTICE: rpi3: Detected: Raspberry Pi 3 Model B (1GB, Sony, UK) [0x00a02082] console: NOTICE: BL1: Booting BL2 console: ERROR: rpi3_sdhost: timeout status 0x40 console: NOTICE: BL2: v2.1(release):v2.1 console: NOTICE: BL2: Built : 15:26:01, May 13 2019 console: NOTICE: BL1: Booting BL31 console: NOTICE: BL31: v2.1(release):v2.1 console: NOTICE: BL31: Built : 15:26:04, May 13 2019 console: =UEFI firmware (version UEFI Firmware v1.15 built at 11:58:44 on Feb 14 2020) PASS (1.54 s) RESULTS : PASS 1 | ERROR 0 | FAIL 0 | SKIP 0 | WARN 0 | INTERRUPT 0 | CANCEL 0 JOB TIME : 1.88 s [1] https://github.com/pbatard/RPi3#summary [2] https://github.com/ARM-software/arm-trusted-firmware/blob/v2.1/docs/plat/rpi3.rst Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Luc Michel <luc.michel@greensocs.com> Message-Id: <20200217103442.30318-1-f4bug@amsat.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
* | | Merge remote-tracking branch ↵Peter Maydell2020-10-2717-40/+1528
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'remotes/dgilbert-gitlab/tags/pull-virtiofs-20201026' into staging virtiofsd pull 2020-10-26 Misono Set default log level to info Explicit build option for virtiofsd Me xattr name mapping Stefan Alternative chroot sandbox method Max Submount mechanism Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> # gpg: Signature made Mon 26 Oct 2020 18:41:36 GMT # 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-gitlab/tags/pull-virtiofs-20201026: tests/acceptance: Add virtiofs_submounts.py tests/acceptance/boot_linux: Accept SSH pubkey virtiofsd: Announce sub-mount points virtiofsd: Store every lo_inode's parent_dev virtiofsd: Add fuse_reply_attr_with_flags() virtiofsd: Add attr_flags to fuse_entry_param virtiofsd: Announce FUSE_ATTR_FLAGS linux/fuse.h: Pull in from Linux tools/virtiofsd: xattr name mappings: Simple 'map' tools/virtiofsd: xattr name mapping examples tools/virtiofsd: xattr name mappings: Map server xattr names tools/virtiofsd: xattr name mappings: Map client xattr names tools/virtiofsd: xattr name mappings: Add option virtiofsd: add container-friendly -o sandbox=chroot option virtiofsd: passthrough_ll: set FUSE_LOG_INFO as default log_level configure: add option for virtiofsd Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * | | tests/acceptance: Add virtiofs_submounts.pyMax Reitz2020-10-265-0/+630
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This test invokes several shell scripts to create a random directory tree full of submounts, and then check in the VM whether every submount has its own ID and the structure looks as expected. (Note that the test scripts must be non-executable, so Avocado will not try to execute them as if they were tests on their own, too.) Because at this commit's date it is unlikely that the Linux kernel on the image provided by boot_linux.py supports submounts in virtio-fs, the test will be cancelled if no custom Linux binary is provided through the vmlinuz parameter. (The on-image kernel can be used by providing an empty string via vmlinuz=.) So, invoking the test can be done as follows: $ avocado run \ tests/acceptance/virtiofs_submounts.py \ -p vmlinuz=/path/to/linux/build/arch/x86/boot/bzImage This test requires root privileges (through passwordless sudo -n), because at this point, virtiofsd requires them. (If you have a timestamp_timeout period for sudoers (e.g. the default of 5 min), you can provide this by executing something like "sudo true" before invoking Avocado.) Signed-off-by: Max Reitz <mreitz@redhat.com> Message-Id: <20200909184028.262297-9-mreitz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | tests/acceptance/boot_linux: Accept SSH pubkeyMax Reitz2020-10-261-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Let download_cloudinit() take an optional pubkey, which subclasses of BootLinux can pass through setUp(). Signed-off-by: Max Reitz <mreitz@redhat.com> Message-Id: <20200909184028.262297-8-mreitz@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: WIllian Rampazzo <willianr@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | virtiofsd: Announce sub-mount pointsMax Reitz2020-10-262-8/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Whenever we encounter a directory with an st_dev that differs from that of its parent, we set the FUSE_ATTR_SUBMOUNT flag so the guest can create a submount for it. Make this behavior optional, so submounts are only announced to the guest with the announce_submounts option. Some users may prefer the current behavior, so that the guest learns nothing about the host mount structure. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-Id: <20200909184028.262297-7-mreitz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Manual merge
| * | | virtiofsd: Store every lo_inode's parent_devMax Reitz2020-10-261-0/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We want to detect mount points in the shared tree. We report them to the guest by setting the FUSE_ATTR_SUBMOUNT flag in fuse_attr.flags, but because the FUSE client will create a submount for every directory that has this flag set, we must do this only for the actual mount points. We can detect mount points by comparing a directory's st_dev with its parent's st_dev. To be able to do so, we need to store the parent's st_dev in the lo_inode object. Note that mount points need not necessarily be directories; a single file can be a mount point as well. However, for the sake of simplicity let us ignore any non-directory mount points for now. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-Id: <20200909184028.262297-6-mreitz@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | virtiofsd: Add fuse_reply_attr_with_flags()Max Reitz2020-10-262-2/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The plain fuse_reply_attr() function does not allow setting fuse_attr.flags, so add this new function that does. Make fuse_reply_attr() a wrapper around it. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-Id: <20200909184028.262297-5-mreitz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | virtiofsd: Add attr_flags to fuse_entry_paramMax Reitz2020-10-262-4/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fuse_entry_param is converted to fuse_attr on the line (by fill_entry()), so it should have a member that mirrors fuse_attr.flags. fill_entry() should then copy this fuse_entry_param.attr_flags to fuse_attr.flags. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-Id: <20200909184028.262297-4-mreitz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | virtiofsd: Announce FUSE_ATTR_FLAGSMax Reitz2020-10-262-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The fuse_attr.flags field is currently just initialized to 0, which is valid. Thus, there is no reason not to always announce FUSE_ATTR_FLAGS (when the kernel supports it). Signed-off-by: Max Reitz <mreitz@redhat.com> Message-Id: <20200909184028.262297-3-mreitz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | linux/fuse.h: Pull in from LinuxMax Reitz2020-10-261-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the linux/fuse.h standard header from the kernel development tree that implements FUSE submounts. This adds the fuse_attr.flags field, the FUSE_ATTR_FLAGS INIT flag, and the FUSE_ATTR_SUBMOUNT flag for fuse_attr.flags. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-Id: <20200909184028.262297-2-mreitz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | tools/virtiofsd: xattr name mappings: Simple 'map'Dr. David Alan Gilbert2020-10-262-1/+130
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mapping rule system implemented in the last few patches is extremely flexible, but not easy to use. Add a simple 'map' type as a sprinkling of sugar to make it easy. e.g. -o xattrmap=":map::user.virtiofs.:" would be sufficient to prefix all xattr's or -o xattrmap=":map:trusted.:user.virtiofs.:" would just prefix 'trusted.' xattr's and leave everything else alone. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20201023165812.36028-6-dgilbert@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | tools/virtiofsd: xattr name mapping examplesDr. David Alan Gilbert2020-10-261-0/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a few examples of xattrmaps to the documentation. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20201023165812.36028-5-dgilbert@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | tools/virtiofsd: xattr name mappings: Map server xattr namesDr. David Alan Gilbert2020-10-261-0/+90
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Map xattr names coming from the server, i.e. the host filesystem; currently this is only from listxattr. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20201023165812.36028-4-dgilbert@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | tools/virtiofsd: xattr name mappings: Map client xattr namesDr. David Alan Gilbert2020-10-261-3/+98
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Map xattr names originating at the client; from get/set/remove xattr. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20201023165812.36028-3-dgilbert@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | tools/virtiofsd: xattr name mappings: Add optionDr. David Alan Gilbert2020-10-262-0/+265
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add an option to define mappings of xattr names so that the client and server filesystems see different views. This can be used to have different SELinux mappings as seen by the guest, to run the virtiofsd with less privileges (e.g. in a case where it can't set trusted/system/security xattrs but you want the guest to be able to), or to isolate multiple users of the same name; e.g. trusted attributes used by stacking overlayfs. A mapping engine is used with 3 simple rules; the rules can be combined to allow most useful mapping scenarios. The ruleset is defined by -o xattrmap='rules...'. This patch doesn't use the rule maps yet. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20201023165812.36028-2-dgilbert@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | virtiofsd: add container-friendly -o sandbox=chroot optionStefan Hajnoczi2020-10-263-9/+88
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | virtiofsd cannot run in a container because CAP_SYS_ADMIN is required to create namespaces. Introduce a weaker sandbox mode that is sufficient in container environments because the container runtime already sets up namespaces. Use chroot to restrict path traversal to the shared directory. virtiofsd loses the following: 1. Mount namespace. The process chroots to the shared directory but leaves the mounts in place. Seccomp rejects mount(2)/umount(2) syscalls. 2. Pid namespace. This should be fine because virtiofsd is the only process running in the container. 3. Network namespace. This should be fine because seccomp already rejects the connect(2) syscall, but an additional layer of security is lost. Container runtime-specific network security policies can be used drop network traffic (except for the vhost-user UNIX domain socket). Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20201008085534.16070-1-stefanha@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | virtiofsd: passthrough_ll: set FUSE_LOG_INFO as default log_levelMisono Tomohiro2020-10-261-4/+3Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Just noticed that although help message says default log level is INFO, it is actually 0 (EMRGE) and no mesage will be shown when error occurs. It's better to follow help message. Signed-off-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com> Message-Id: <20201008110148.2757734-1-misono.tomohiro@jp.fujitsu.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | configure: add option for virtiofsdMisono Tomohiro2020-10-264-3/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently it is unknown whether virtiofsd will be built at configuration time. It will be automatically built when dependency is met. Also, required libraries are not clear. To make this clear, add configure option --{enable,disable}-virtiofsd. The default is the same as current (enabled if available) like many other options. When --enable-virtiofsd is given and dependency is not met, we get: ERROR: Problem encountered: virtiofsd requires libcap-ng-devel and seccomp-devel or ERROR: Problem encountered: virtiofsd needs tools and vhost-user support In addition, configuration summary now includes virtiofsd entry: build virtiofs daemon: YES/NO Signed-off-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com> Message-Id: <20201008103133.2722903-1-misono.tomohiro@jp.fujitsu.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Manual merge
* | | | Merge remote-tracking branch ↵Peter Maydell2020-10-272-1/+5
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'remotes/stefanha-gitlab/tags/tracing-pull-request' into staging Pull request v2: * Fix Anthony Perard's email address [Philippe] # gpg: Signature made Mon 26 Oct 2020 17:04:57 GMT # gpg: using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full] # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" [full] # Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * remotes/stefanha-gitlab/tags/tracing-pull-request: Add execute bit back to scripts/tracetool.py trace/simple: Enable tracing on startup only if the user specifies a trace option Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * | | | Add execute bit back to scripts/tracetool.pyAnthony PERARD2020-10-261-0/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit a81df1b68b65 ("libqemuutil, qapi, trace: convert to meson") removed it without explanation and it is useful to be able to run a script without having to figure out which interpreter to use. Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20200923103620.1980151-1-anthony.perard@citrix.com>
| * | | | trace/simple: Enable tracing on startup only if the user specifies a trace ↵Josh DuBois2020-10-261-1/+5
| | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | option Tracing can be enabled at the command line or via the monitor. Command-line trace options are recorded during trace_opt_parse(), but tracing is not enabled until the various front-ends later call trace_init_file(). If the user passes a trace option on the command-line, remember that and enable tracing during trace_init_file(). Otherwise, trace_init_file() should record the trace file specified by the frontend and avoid enabling traces until the user requests them via the monitor. This fixes 1b7157be3a8c4300fc8044d40f4b2e64a152a1b4 and also db25d56c014aa1a96319c663e0a60346a223b31e, by allowing the user to enable traces on the command line and also avoiding unwanted trace-<pid> files when the user has not asked for them. Fixes: 1b7157be3a8c4300fc8044d40f4b2e64a152a1b4 Signed-off-by: Josh DuBois <josh@joshdubois.com> Message-id: 20200816174610.20253-1-josh@joshdubois.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* | | | Merge remote-tracking branch ↵Peter Maydell2020-10-2713-103/+213
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'remotes/dgilbert/tags/pull-migration-20201026a' into staging migration pull: 2020-10-26 Another go at Peter's postcopy fixes Cleanups from Bihong Yu and Peter Maydell. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> # gpg: Signature made Mon 26 Oct 2020 16:17:03 GMT # 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-20201026a: migration-test: Only hide error if !QTEST_LOG migration/postcopy: Release fd before going into 'postcopy-pause' migration: Sync requested pages after postcopy recovery migration: Maintain postcopy faulted addresses migration: Introduce migrate_send_rp_message_req_pages() migration: Pass incoming state into qemu_ufd_copy_ioctl() migration: using trace_ to replace DPRINTF migration: Delete redundant spaces migration: Open brace '{' following function declarations go on the next line migration: Do not initialise statics and globals to 0 or NULL migration: Add braces {} for if statement migration: Open brace '{' following struct go on the same line migration: Add spaces around operator migration: Don't use '#' flag of printf format migration: Do not use C99 // comments migration: Drop unused VMSTATE_FLOAT64 support Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * | | | migration-test: Only hide error if !QTEST_LOGPeter Xu2020-10-261-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The errors are very useful when debugging qtest failures, especially when QTEST_LOG=1 is set. Let's allow override MigrateStart.hide_stderr when QTEST_LOG=1 is specified, because that means the user wants to be verbose. Not very nice to introduce the first QTEST_LOG env access in migration-test.c, however it should be handy. Without this patch, I was hacking error_report() when debugging such errors. Let's make things easier. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20201021212721.440373-7-peterx@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | | migration/postcopy: Release fd before going into 'postcopy-pause'Peter Xu2020-10-261-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Logically below race could trigger with the old code: test program migration thread ------------ ---------------- wait_until('postcopy-pause') postcopy_pause() set_state('postcopy-pause') do_postcopy_recover() arm s->to_dst_file with new fd release s->to_dst_file [1] Here [1] could have released the just-installed recoverying channel. Then the migration could hang without really resuming. Instead, it should be very safe to release the fd before setting the state into 'postcopy-pause', because there's no reason for any other thread to touch it during 'postcopy-active'. Dave reported a very rare postcopy recovery hang that the migration-test program waited for the migration to complete in migrate_postcopy_complete(). We do suspect it's the same thing that we're gonna fix here. Hard to tell. However since we've noticed this, fix this irrelevant of the hang report. Cc: Dr. David Alan Gilbert <dgilbert@redhat.com> Cc: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20201021212721.440373-6-peterx@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | | migration: Sync requested pages after postcopy recoveryPeter Xu2020-10-262-0/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We synchronize the requested pages right after a postcopy recovery happens. This helps to synchronize the prioritized pages on source so that the faulted threads can be served faster. Reported-by: Xiaohui Li <xiaohli@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20201021212721.440373-5-peterx@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | | migration: Maintain postcopy faulted addressesPeter Xu2020-10-264-5/+74
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Maintain a list of faulted addresses on the destination host for which we're waiting on. This is implemented using a GTree rather than a real list to make sure even there're plenty of vCPUs/threads that are faulting, the lookup will still be fast with O(log(N)) (because we'll do that after placing each page). It should bring a slight overhead, but ideally that shouldn't be a big problem simply because in most cases the requested page list will be short. Actually we did similar things for postcopy blocktime measurements. This patch didn't use that simply because: (1) blocktime measurement is towards vcpu threads only, but here we need to record all faulted addresses, including main thread and external thread (like, DPDK via vhost-user). (2) blocktime measurement will require UFFD_FEATURE_THREAD_ID, but here we don't want to add that extra dependency on the kernel version since not necessary. E.g., we don't need to know which thread faulted on which page, we also don't care about multiple threads faulting on the same page. But we only care about what addresses are faulted so waiting for a page copying from src. (3) blocktime measurement is not enabled by default. However we need this by default especially for postcopy recover. Another thing to mention is that this patch introduced a new mutex to serialize the receivedmap and the page_requested tree, however that serialization does not cover other procedures like UFFDIO_COPY. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20201021212721.440373-4-peterx@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | | migration: Introduce migrate_send_rp_message_req_pages()Peter Xu2020-10-262-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is another layer wrapper for sending a page request to the source VM. The new migrate_send_rp_message_req_pages() will be used elsewhere in coming patches. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20201021212721.440373-3-peterx@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | | migration: Pass incoming state into qemu_ufd_copy_ioctl()Peter Xu2020-10-261-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It'll be used in follow up patches to access more fields out of it. Meanwhile fetch the userfaultfd inside the function. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20201021212721.440373-2-peterx@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | | migration: using trace_ to replace DPRINTFBihong Yu2020-10-263-28/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Bihong Yu <yubihong@huawei.com> Message-Id: <1603179176-5360-1-git-send-email-yubihong@huawei.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | | migration: Delete redundant spacesBihong Yu2020-10-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Bihong Yu <yubihong@huawei.com> Reviewed-by: Chuan Zheng <zhengchuan@huawei.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <1603163448-27122-9-git-send-email-yubihong@huawei.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | | migration: Open brace '{' following function declarations go on the next lineBihong Yu2020-10-261-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Bihong Yu <yubihong@huawei.com> Reviewed-by: Chuan Zheng <zhengchuan@huawei.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <1603163448-27122-8-git-send-email-yubihong@huawei.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | | migration: Do not initialise statics and globals to 0 or NULLBihong Yu2020-10-262-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Bihong Yu <yubihong@huawei.com> Reviewed-by: Chuan Zheng <zhengchuan@huawei.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <1603163448-27122-7-git-send-email-yubihong@huawei.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | | migration: Add braces {} for if statementBihong Yu2020-10-261-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Bihong Yu <yubihong@huawei.com> Reviewed-by: Chuan Zheng <zhengchuan@huawei.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <1603163448-27122-6-git-send-email-yubihong@huawei.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | | migration: Open brace '{' following struct go on the same lineBihong Yu2020-10-261-2/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Bihong Yu <yubihong@huawei.com> Reviewed-by: Chuan Zheng <zhengchuan@huawei.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <1603163448-27122-5-git-send-email-yubihong@huawei.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | | migration: Add spaces around operatorBihong Yu2020-10-265-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Bihong Yu <yubihong@huawei.com> Reviewed-by: Chuan Zheng <zhengchuan@huawei.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <1603163448-27122-4-git-send-email-yubihong@huawei.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | | migration: Don't use '#' flag of printf formatBihong Yu2020-10-262-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Bihong Yu <yubihong@huawei.com> Reviewed-by: Chuan Zheng <zhengchuan@huawei.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <1603163448-27122-3-git-send-email-yubihong@huawei.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | | migration: Do not use C99 // commentsBihong Yu2020-10-262-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Bihong Yu <yubihong@huawei.com> Reviewed-by: Chuan Zheng <zhengchuan@huawei.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <1603163448-27122-2-git-send-email-yubihong@huawei.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| * | | | migration: Drop unused VMSTATE_FLOAT64 supportPeter Maydell2020-10-262-39/+0Star
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit ef96e3ae9698d6 in January 2019 removed the last user of the VMSTATE_FLOAT64* macros. These were used by targets which defined their floating point register file as an array of 'float64'. We used to try to maintain a stricter distinction between 'float64' (a type for holding an integer representing an IEEE float) and 'uint64_t', including having a debug option for 'float64' being a struct and supposedly mandatory macros for converting between float64 and uint64_t. We no longer think that's a usefully strong distinction to draw and we allow ourselves to freely assume that float64 really is just a 64-bit integer type, so for new targets we would simply recommend use of the uint64_t type for a floating point register file. The float64 type remains as a useful way of documenting in the type signature of helper functions and the like that they expect to receive an IEEE float from the TCG generated code rather than an arbitrary integer. Since the VMSTATE_FLOAT64* macros have no remaining users and we don't recommend new code uses them, delete them. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20201022120830.5938-1-peter.maydell@linaro.org> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>