This patchset add the necessary changes to support guests whose page size is larger than 4K. And the main architecture which we develop this for is ARM64 (also it's the architecture that I use to test this feature). Previous version: v1: https://lore.kernel.org/lkml/20200721014135.84140-1-boqun.feng@xxxxxxxxx/ v2: https://lore.kernel.org/lkml/20200902030107.33380-1-boqun.feng@xxxxxxxxx v3: https://lore.kernel.org/lkml/20200910143455.109293-1-boqun.feng@xxxxxxxxx/ Changes since v3: * Fix a bug that ringbuffer sizes are not page-aligned when PAGE_SIZE = 16k. Drop the Acked-by and Reviewed-by tags for those patches accordingly. * Code improvement as per suggestion from Michael Kelley. I've done some tests with PAGE_SIZE=64k and PAGE_SIZE=16k configurations on ARM64 guests (with Michael's patchset[1] for ARM64 Hyper-V guest support), everything worked fine ;-) Looking forwards to comments and suggestions! Regards, Boqun [1]: https://lore.kernel.org/lkml/1598287583-71762-1-git-send-email-mikelley@xxxxxxxxxxxxx/ Boqun Feng (11): Drivers: hv: vmbus: Always use HV_HYP_PAGE_SIZE for gpadl Drivers: hv: vmbus: Move __vmbus_open() Drivers: hv: vmbus: Introduce types of GPADL Drivers: hv: Use HV_HYP_PAGE in hv_synic_enable_regs() Drivers: hv: vmbus: Move virt_to_hvpfn() to hyperv header hv: hyperv.h: Introduce some hvpfn helper functions hv_netvsc: Use HV_HYP_PAGE_SIZE for Hyper-V communication Input: hyperv-keyboard: Use VMBUS_RING_SIZE() for ringbuffer sizes HID: hyperv: Use VMBUS_RING_SIZE() for ringbuffer sizes Driver: hv: util: Use VMBUS_RING_SIZE() for ringbuffer sizes scsi: storvsc: Support PAGE_SIZE larger than 4K drivers/hid/hid-hyperv.c | 4 +- drivers/hv/channel.c | 461 ++++++++++++++++---------- drivers/hv/hv.c | 4 +- drivers/hv/hv_util.c | 11 +- drivers/input/serio/hyperv-keyboard.c | 4 +- drivers/net/hyperv/netvsc.c | 2 +- drivers/net/hyperv/netvsc_drv.c | 46 +-- drivers/net/hyperv/rndis_filter.c | 13 +- drivers/scsi/storvsc_drv.c | 56 +++- include/linux/hyperv.h | 68 +++- 10 files changed, 442 insertions(+), 227 deletions(-) -- 2.28.0
