diff options
| -rw-r--r-- | arch/x86/Kconfig | 1 | ||||
| -rw-r--r-- | arch/x86/include/asm/xen/swiotlb-xen.h | 6 | ||||
| -rw-r--r-- | arch/x86/xen/enlighten_pv.c | 15 | ||||
| -rw-r--r-- | arch/x86/xen/pci-swiotlb-xen.c | 4 | ||||
| -rw-r--r-- | arch/x86/xen/smp_pv.c | 4 | ||||
| -rw-r--r-- | drivers/pci/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/xen/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/xen/balloon.c | 4 | ||||
| -rw-r--r-- | drivers/xen/gntdev.c | 8 | ||||
| -rw-r--r-- | drivers/xen/swiotlb-xen.c | 7 | ||||
| -rw-r--r-- | include/xen/xen-ops.h | 12 |
11 files changed, 28 insertions, 36 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index dad7f85dcdea..ab83c22d274e 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -2610,7 +2610,6 @@ config PCI_OLPC config PCI_XEN def_bool y depends on PCI && XEN - select SWIOTLB_XEN config MMCONF_FAM10H def_bool y diff --git a/arch/x86/include/asm/xen/swiotlb-xen.h b/arch/x86/include/asm/xen/swiotlb-xen.h index 6b56d0d45d15..66b4ddde7743 100644 --- a/arch/x86/include/asm/xen/swiotlb-xen.h +++ b/arch/x86/include/asm/xen/swiotlb-xen.h @@ -3,14 +3,10 @@ #define _ASM_X86_SWIOTLB_XEN_H #ifdef CONFIG_SWIOTLB_XEN -extern int xen_swiotlb; extern int __init pci_xen_swiotlb_detect(void); -extern void __init pci_xen_swiotlb_init(void); extern int pci_xen_swiotlb_init_late(void); #else -#define xen_swiotlb (0) -static inline int __init pci_xen_swiotlb_detect(void) { return 0; } -static inline void __init pci_xen_swiotlb_init(void) { } +#define pci_xen_swiotlb_detect NULL static inline int pci_xen_swiotlb_init_late(void) { return -ENXIO; } #endif diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c index 349f780a1567..6e0d0754f94f 100644 --- a/arch/x86/xen/enlighten_pv.c +++ b/arch/x86/xen/enlighten_pv.c @@ -755,8 +755,8 @@ static void xen_write_idt_entry(gate_desc *dt, int entrynum, const gate_desc *g) preempt_enable(); } -static void xen_convert_trap_info(const struct desc_ptr *desc, - struct trap_info *traps) +static unsigned xen_convert_trap_info(const struct desc_ptr *desc, + struct trap_info *traps, bool full) { unsigned in, out, count; @@ -766,17 +766,18 @@ static void xen_convert_trap_info(const struct desc_ptr *desc, for (in = out = 0; in < count; in++) { gate_desc *entry = (gate_desc *)(desc->address) + in; - if (cvt_gate_to_trap(in, entry, &traps[out])) + if (cvt_gate_to_trap(in, entry, &traps[out]) || full) out++; } - traps[out].address = 0; + + return out; } void xen_copy_trap_info(struct trap_info *traps) { const struct desc_ptr *desc = this_cpu_ptr(&idt_desc); - xen_convert_trap_info(desc, traps); + xen_convert_trap_info(desc, traps, true); } /* Load a new IDT into Xen. In principle this can be per-CPU, so we @@ -786,6 +787,7 @@ static void xen_load_idt(const struct desc_ptr *desc) { static DEFINE_SPINLOCK(lock); static struct trap_info traps[257]; + unsigned out; trace_xen_cpu_load_idt(desc); @@ -793,7 +795,8 @@ static void xen_load_idt(const struct desc_ptr *desc) memcpy(this_cpu_ptr(&idt_desc), desc, sizeof(idt_desc)); - xen_convert_trap_info(desc, traps); + out = xen_convert_trap_info(desc, traps, false); + memset(&traps[out], 0, sizeof(traps[0])); xen_mc_flush(); if (HYPERVISOR_set_trap_table(traps)) diff --git a/arch/x86/xen/pci-swiotlb-xen.c b/arch/x86/xen/pci-swiotlb-xen.c index 54f9aa7e8457..46df59aeaa06 100644 --- a/arch/x86/xen/pci-swiotlb-xen.c +++ b/arch/x86/xen/pci-swiotlb-xen.c @@ -18,7 +18,7 @@ #endif #include <linux/export.h> -int xen_swiotlb __read_mostly; +static int xen_swiotlb __read_mostly; /* * pci_xen_swiotlb_detect - set xen_swiotlb to 1 if necessary @@ -56,7 +56,7 @@ int __init pci_xen_swiotlb_detect(void) return xen_swiotlb; } -void __init pci_xen_swiotlb_init(void) +static void __init pci_xen_swiotlb_init(void) { if (xen_swiotlb) { xen_swiotlb_init_early(); diff --git a/arch/x86/xen/smp_pv.c b/arch/x86/xen/smp_pv.c index 96afadf9878e..7ed56c6075b0 100644 --- a/arch/x86/xen/smp_pv.c +++ b/arch/x86/xen/smp_pv.c @@ -290,8 +290,6 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle) gdt = get_cpu_gdt_rw(cpu); - memset(&ctxt->fpu_ctxt, 0, sizeof(ctxt->fpu_ctxt)); - /* * Bring up the CPU in cpu_bringup_and_idle() with the stack * pointing just below where pt_regs would be if it were a normal @@ -308,8 +306,6 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle) xen_copy_trap_info(ctxt->trap_ctxt); - ctxt->ldt_ents = 0; - BUG_ON((unsigned long)gdt & ~PAGE_MASK); gdt_mfn = arbitrary_virt_to_mfn(gdt); diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig index 0c473d75e625..43e615aa12ff 100644 --- a/drivers/pci/Kconfig +++ b/drivers/pci/Kconfig @@ -110,7 +110,7 @@ config PCI_PF_STUB config XEN_PCIDEV_FRONTEND tristate "Xen PCI Frontend" - depends on X86 && XEN + depends on XEN_PV select PCI_XEN select XEN_XENBUS_FRONTEND default y diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig index a37eb52fb401..22f5aff0c136 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 diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 2d2803883306..43ebfe36ac27 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -522,8 +522,8 @@ static int balloon_thread(void *unused) timeout = 3600 * HZ; 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/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. diff --git a/include/xen/xen-ops.h b/include/xen/xen-ops.h index 39a5580f8feb..db28e79b77ee 100644 --- a/include/xen/xen-ops.h +++ b/include/xen/xen-ops.h @@ -46,19 +46,7 @@ extern unsigned long *xen_contiguous_bitmap; int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order, unsigned int address_bits, dma_addr_t *dma_handle); - void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order); -#else -static inline int xen_create_contiguous_region(phys_addr_t pstart, - unsigned int order, - unsigned int address_bits, - dma_addr_t *dma_handle) -{ - return 0; -} - -static inline void xen_destroy_contiguous_region(phys_addr_t pstart, - unsigned int order) { } #endif #if defined(CONFIG_XEN_PV) |