diff options
Diffstat (limited to 'drivers/xen')
| -rw-r--r-- | drivers/xen/Kconfig | 5 | ||||
| -rw-r--r-- | drivers/xen/balloon.c | 25 | ||||
| -rw-r--r-- | drivers/xen/gntdev.c | 8 | ||||
| -rw-r--r-- | drivers/xen/privcmd.c | 18 | ||||
| -rw-r--r-- | drivers/xen/swiotlb-xen.c | 7 |
5 files changed, 41 insertions, 22 deletions
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig index a37eb52fb401..1b2c3aca6887 100644 --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -177,6 +177,7 @@ config XEN_GRANT_DMA_ALLOC config SWIOTLB_XEN def_bool y + depends on XEN_PV || ARM || ARM64 select DMA_OPS select SWIOTLB @@ -240,7 +241,7 @@ config XEN_PRIVCMD config XEN_ACPI_PROCESSOR tristate "Xen ACPI processor" - depends on XEN && XEN_DOM0 && X86 && ACPI_PROCESSOR && CPU_FREQ + depends on XEN && XEN_PV_DOM0 && X86 && ACPI_PROCESSOR && CPU_FREQ default m help This ACPI processor uploads Power Management information to the Xen @@ -258,7 +259,7 @@ config XEN_ACPI_PROCESSOR config XEN_MCE_LOG bool "Xen platform mcelog" - depends on XEN_DOM0 && X86_MCE + depends on XEN_PV_DOM0 && X86_MCE help Allow kernel fetching MCE error from Xen platform and converting it into Linux mcelog format for mcelog tools diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 2d2803883306..3a50f097ed3e 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -491,12 +491,12 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp) } /* - * Stop waiting if either state is not BP_EAGAIN and ballooning action is - * needed, or if the credit has changed while state is BP_EAGAIN. + * Stop waiting if either state is BP_DONE and ballooning action is + * needed, or if the credit has changed while state is not BP_DONE. */ static bool balloon_thread_cond(enum bp_state state, long credit) { - if (state != BP_EAGAIN) + if (state == BP_DONE) credit = 0; return current_credit() != credit || kthread_should_stop(); @@ -516,14 +516,23 @@ static int balloon_thread(void *unused) set_freezable(); for (;;) { - if (state == BP_EAGAIN) - timeout = balloon_stats.schedule_delay * HZ; - else + switch (state) { + case BP_DONE: + case BP_ECANCELED: timeout = 3600 * HZ; + break; + case BP_EAGAIN: + timeout = balloon_stats.schedule_delay * HZ; + break; + case BP_WAIT: + timeout = HZ; + break; + } + credit = current_credit(); - wait_event_interruptible_timeout(balloon_thread_wq, - balloon_thread_cond(state, credit), timeout); + wait_event_freezable_timeout(balloon_thread_wq, + balloon_thread_cond(state, credit), timeout); if (kthread_should_stop()) return 0; diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index 1e7f6b1c0c97..fec1b6537166 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -381,6 +381,14 @@ static int __unmap_grant_pages(struct gntdev_grant_map *map, int offset, map->unmap_ops[offset+i].handle, map->unmap_ops[offset+i].status); map->unmap_ops[offset+i].handle = INVALID_GRANT_HANDLE; + if (use_ptemod) { + if (map->kunmap_ops[offset+i].status) + err = -EINVAL; + pr_debug("kunmap handle=%u st=%d\n", + map->kunmap_ops[offset+i].handle, + map->kunmap_ops[offset+i].status); + map->kunmap_ops[offset+i].handle = INVALID_GRANT_HANDLE; + } } return err; } diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c index 720a7b7abd46..3369734108af 100644 --- a/drivers/xen/privcmd.c +++ b/drivers/xen/privcmd.c @@ -257,7 +257,7 @@ static long privcmd_ioctl_mmap(struct file *file, void __user *udata) LIST_HEAD(pagelist); struct mmap_gfn_state state; - /* We only support privcmd_ioctl_mmap_batch for auto translated. */ + /* We only support privcmd_ioctl_mmap_batch for non-auto-translated. */ if (xen_feature(XENFEAT_auto_translated_physmap)) return -ENOSYS; @@ -420,7 +420,7 @@ static int alloc_empty_pages(struct vm_area_struct *vma, int numpgs) int rc; struct page **pages; - pages = kcalloc(numpgs, sizeof(pages[0]), GFP_KERNEL); + pages = kvcalloc(numpgs, sizeof(pages[0]), GFP_KERNEL); if (pages == NULL) return -ENOMEM; @@ -428,7 +428,7 @@ static int alloc_empty_pages(struct vm_area_struct *vma, int numpgs) if (rc != 0) { pr_warn("%s Could not alloc %d pfns rc:%d\n", __func__, numpgs, rc); - kfree(pages); + kvfree(pages); return -ENOMEM; } BUG_ON(vma->vm_private_data != NULL); @@ -803,21 +803,21 @@ static long privcmd_ioctl_mmap_resource(struct file *file, unsigned int domid = (xdata.flags & XENMEM_rsrc_acq_caller_owned) ? DOMID_SELF : kdata.dom; - int num; + int num, *errs = (int *)pfns; + BUILD_BUG_ON(sizeof(*errs) > sizeof(*pfns)); num = xen_remap_domain_mfn_array(vma, kdata.addr & PAGE_MASK, - pfns, kdata.num, (int *)pfns, + pfns, kdata.num, errs, vma->vm_page_prot, - domid, - vma->vm_private_data); + domid); if (num < 0) rc = num; else if (num != kdata.num) { unsigned int i; for (i = 0; i < num; i++) { - rc = pfns[i]; + rc = errs[i]; if (rc < 0) break; } @@ -912,7 +912,7 @@ static void privcmd_close(struct vm_area_struct *vma) else pr_crit("unable to unmap MFN range: leaking %d pages. rc=%d\n", numpgs, rc); - kfree(pages); + kvfree(pages); } static vm_fault_t privcmd_fault(struct vm_fault *vmf) diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index 8c10edf9efe6..e56a5faac395 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -230,10 +230,11 @@ retry: /* * Get IO TLB memory from any location. */ - start = memblock_alloc(PAGE_ALIGN(bytes), PAGE_SIZE); + start = memblock_alloc(PAGE_ALIGN(bytes), + IO_TLB_SEGSIZE << IO_TLB_SHIFT); if (!start) - panic("%s: Failed to allocate %lu bytes align=0x%lx\n", - __func__, PAGE_ALIGN(bytes), PAGE_SIZE); + panic("%s: Failed to allocate %lu bytes\n", + __func__, PAGE_ALIGN(bytes)); /* * And replace that memory with pages under 4GB. |