On Tue, Oct 31, 2017 at 04:19:33PM +0100, Marc-André Lureau wrote: > Hi, > > This series adds DMA operations support to the qemu fw_cfg kernel > module and populates "etc/vmcoreinfo" with vmcoreinfo location > details. > > Note: the support for this entry handling has been merged for next > qemu release (2.11) > > v4: > - export paddr_vmcoreinfo_note() to fix fw_cfg.ko build > - fix build with !CONFIG_CRASH_CORE > - replace the unbounded yield() loop with a usleep_range() loop and a > 200ms timeout > - do not write vmcoreinfo entry when running the kdump kernel (D. Hatayama) > - drop the experimental sysfs write support patch from this series
Tested it on x86_64, appears to work fine. I have a couple of silly questions re. 3/5 and 5/5. Lost the v5 emails with the vmcore folks cc-ed, but my questions are unrelated to vmcore anyway :) Thanks, --Gabriel > > v3: (thanks kbuild) > - add "fw_cfg: fix the command line module name" patch > - fix build of "fw_cfg: add DMA register" with CONFIG_FW_CFG_SYSFS_CMDLINE=y > - fix 'Wshift-count-overflow' > > v2: > - use platform device for dma mapping > - add etc/vmcoreinfo patch > - some code cleanups > > Marc-André Lureau (5): > fw_cfg: fix the command line module name > fw_cfg: add DMA register > fw_cfg: do DMA read operation > crash: export paddr_vmcoreinfo_note() > fw_cfg: write vmcoreinfo details > > drivers/firmware/qemu_fw_cfg.c | 292 > +++++++++++++++++++++++++++++++++++++---- > kernel/crash_core.c | 1 + > 2 files changed, 264 insertions(+), 29 deletions(-) > > -- > 2.15.0.rc0.40.gaefcc5f6f >
