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-rw-r--r--drivers/xen/Makefile2
-rw-r--r--drivers/xen/acpi.c2
-rw-r--r--drivers/xen/efi.c30
-rw-r--r--drivers/xen/events/events_fifo.c3
-rw-r--r--drivers/xen/gntdev.c205
-rw-r--r--drivers/xen/grant-table.c4
-rw-r--r--drivers/xen/pcpu.c8
-rw-r--r--drivers/xen/time.c88
-rw-r--r--drivers/xen/xen-acpi-cpuhotplug.c2
-rw-r--r--drivers/xen/xen-acpi-pad.c4
-rw-r--r--drivers/xen/xen-acpi-processor.c8
-rw-r--r--drivers/xen/xenbus/xenbus_comms.c8
-rw-r--r--drivers/xen/xenfs/xensyms.c4
13 files changed, 330 insertions, 38 deletions
diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile
index aa8a7f71f310..9b7a35c9e51d 100644
--- a/drivers/xen/Makefile
+++ b/drivers/xen/Makefile
@@ -1,6 +1,6 @@
obj-$(CONFIG_HOTPLUG_CPU) += cpu_hotplug.o
obj-$(CONFIG_X86) += fallback.o
-obj-y += grant-table.o features.o balloon.o manage.o preempt.o
+obj-y += grant-table.o features.o balloon.o manage.o preempt.o time.o
obj-y += events/
obj-y += xenbus/
diff --git a/drivers/xen/acpi.c b/drivers/xen/acpi.c
index 90307c0b630c..6893c79fd2a1 100644
--- a/drivers/xen/acpi.c
+++ b/drivers/xen/acpi.c
@@ -58,7 +58,7 @@ static int xen_acpi_notify_hypervisor_state(u8 sleep_state,
bits, val_a, val_b))
return -1;
- HYPERVISOR_dom0_op(&op);
+ HYPERVISOR_platform_op(&op);
return 1;
}
diff --git a/drivers/xen/efi.c b/drivers/xen/efi.c
index f745db270171..be7e56a338e8 100644
--- a/drivers/xen/efi.c
+++ b/drivers/xen/efi.c
@@ -42,7 +42,7 @@ static efi_status_t xen_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc)
{
struct xen_platform_op op = INIT_EFI_OP(get_time);
- if (HYPERVISOR_dom0_op(&op) < 0)
+ if (HYPERVISOR_platform_op(&op) < 0)
return EFI_UNSUPPORTED;
if (tm) {
@@ -67,7 +67,7 @@ static efi_status_t xen_efi_set_time(efi_time_t *tm)
BUILD_BUG_ON(sizeof(*tm) != sizeof(efi_data(op).u.set_time));
memcpy(&efi_data(op).u.set_time, tm, sizeof(*tm));
- if (HYPERVISOR_dom0_op(&op) < 0)
+ if (HYPERVISOR_platform_op(&op) < 0)
return EFI_UNSUPPORTED;
return efi_data(op).status;
@@ -79,7 +79,7 @@ static efi_status_t xen_efi_get_wakeup_time(efi_bool_t *enabled,
{
struct xen_platform_op op = INIT_EFI_OP(get_wakeup_time);
- if (HYPERVISOR_dom0_op(&op) < 0)
+ if (HYPERVISOR_platform_op(&op) < 0)
return EFI_UNSUPPORTED;
if (tm) {
@@ -108,7 +108,7 @@ static efi_status_t xen_efi_set_wakeup_time(efi_bool_t enabled, efi_time_t *tm)
else
efi_data(op).misc |= XEN_EFI_SET_WAKEUP_TIME_ENABLE_ONLY;
- if (HYPERVISOR_dom0_op(&op) < 0)
+ if (HYPERVISOR_platform_op(&op) < 0)
return EFI_UNSUPPORTED;
return efi_data(op).status;
@@ -129,7 +129,7 @@ static efi_status_t xen_efi_get_variable(efi_char16_t *name,
efi_data(op).u.get_variable.size = *data_size;
set_xen_guest_handle(efi_data(op).u.get_variable.data, data);
- if (HYPERVISOR_dom0_op(&op) < 0)
+ if (HYPERVISOR_platform_op(&op) < 0)
return EFI_UNSUPPORTED;
*data_size = efi_data(op).u.get_variable.size;
@@ -152,7 +152,7 @@ static efi_status_t xen_efi_get_next_variable(unsigned long *name_size,
memcpy(&efi_data(op).u.get_next_variable_name.vendor_guid, vendor,
sizeof(*vendor));
- if (HYPERVISOR_dom0_op(&op) < 0)
+ if (HYPERVISOR_platform_op(&op) < 0)
return EFI_UNSUPPORTED;
*name_size = efi_data(op).u.get_next_variable_name.size;
@@ -178,7 +178,7 @@ static efi_status_t xen_efi_set_variable(efi_char16_t *name,
efi_data(op).u.set_variable.size = data_size;
set_xen_guest_handle(efi_data(op).u.set_variable.data, data);
- if (HYPERVISOR_dom0_op(&op) < 0)
+ if (HYPERVISOR_platform_op(&op) < 0)
return EFI_UNSUPPORTED;
return efi_data(op).status;
@@ -196,7 +196,7 @@ static efi_status_t xen_efi_query_variable_info(u32 attr,
efi_data(op).u.query_variable_info.attr = attr;
- if (HYPERVISOR_dom0_op(&op) < 0)
+ if (HYPERVISOR_platform_op(&op) < 0)
return EFI_UNSUPPORTED;
*storage_space = efi_data(op).u.query_variable_info.max_store_size;
@@ -210,7 +210,7 @@ static efi_status_t xen_efi_get_next_high_mono_count(u32 *count)
{
struct xen_platform_op op = INIT_EFI_OP(get_next_high_monotonic_count);
- if (HYPERVISOR_dom0_op(&op) < 0)
+ if (HYPERVISOR_platform_op(&op) < 0)
return EFI_UNSUPPORTED;
*count = efi_data(op).misc;
@@ -232,7 +232,7 @@ static efi_status_t xen_efi_update_capsule(efi_capsule_header_t **capsules,
efi_data(op).u.update_capsule.capsule_count = count;
efi_data(op).u.update_capsule.sg_list = sg_list;
- if (HYPERVISOR_dom0_op(&op) < 0)
+ if (HYPERVISOR_platform_op(&op) < 0)
return EFI_UNSUPPORTED;
return efi_data(op).status;
@@ -252,7 +252,7 @@ static efi_status_t xen_efi_query_capsule_caps(efi_capsule_header_t **capsules,
capsules);
efi_data(op).u.query_capsule_capabilities.capsule_count = count;
- if (HYPERVISOR_dom0_op(&op) < 0)
+ if (HYPERVISOR_platform_op(&op) < 0)
return EFI_UNSUPPORTED;
*max_size = efi_data(op).u.query_capsule_capabilities.max_capsule_size;
@@ -331,7 +331,7 @@ efi_system_table_t __init *xen_efi_probe(void)
};
union xenpf_efi_info *info = &op.u.firmware_info.u.efi_info;
- if (!xen_initial_domain() || HYPERVISOR_dom0_op(&op) < 0)
+ if (!xen_initial_domain() || HYPERVISOR_platform_op(&op) < 0)
return NULL;
/* Here we know that Xen runs on EFI platform. */
@@ -347,7 +347,7 @@ efi_system_table_t __init *xen_efi_probe(void)
info->vendor.bufsz = sizeof(vendor);
set_xen_guest_handle(info->vendor.name, vendor);
- if (HYPERVISOR_dom0_op(&op) == 0) {
+ if (HYPERVISOR_platform_op(&op) == 0) {
efi_systab_xen.fw_vendor = __pa_symbol(vendor);
efi_systab_xen.fw_revision = info->vendor.revision;
} else
@@ -357,14 +357,14 @@ efi_system_table_t __init *xen_efi_probe(void)
op.u.firmware_info.type = XEN_FW_EFI_INFO;
op.u.firmware_info.index = XEN_FW_EFI_VERSION;
- if (HYPERVISOR_dom0_op(&op) == 0)
+ if (HYPERVISOR_platform_op(&op) == 0)
efi_systab_xen.hdr.revision = info->version;
op.cmd = XENPF_firmware_info;
op.u.firmware_info.type = XEN_FW_EFI_INFO;
op.u.firmware_info.index = XEN_FW_EFI_RT_VERSION;
- if (HYPERVISOR_dom0_op(&op) == 0)
+ if (HYPERVISOR_platform_op(&op) == 0)
efi.runtime_version = info->version;
return &efi_systab_xen;
diff --git a/drivers/xen/events/events_fifo.c b/drivers/xen/events/events_fifo.c
index 96a1b8da5371..eff2b88003d9 100644
--- a/drivers/xen/events/events_fifo.c
+++ b/drivers/xen/events/events_fifo.c
@@ -41,6 +41,7 @@
#include <linux/percpu.h>
#include <linux/cpu.h>
+#include <asm/barrier.h>
#include <asm/sync_bitops.h>
#include <asm/xen/hypercall.h>
#include <asm/xen/hypervisor.h>
@@ -296,7 +297,7 @@ static void consume_one_event(unsigned cpu,
* control block.
*/
if (head == 0) {
- rmb(); /* Ensure word is up-to-date before reading head. */
+ virt_rmb(); /* Ensure word is up-to-date before reading head. */
head = control_block->head[priority];
}
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 1be5dd048622..dc495383ad73 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -518,7 +518,7 @@ static void mn_release(struct mmu_notifier *mn,
mutex_unlock(&priv->lock);
}
-static struct mmu_notifier_ops gntdev_mmu_ops = {
+static const struct mmu_notifier_ops gntdev_mmu_ops = {
.release = mn_release,
.invalidate_page = mn_invl_page,
.invalidate_range_start = mn_invl_range_start,
@@ -748,6 +748,206 @@ static long gntdev_ioctl_notify(struct gntdev_priv *priv, void __user *u)
return rc;
}
+#define GNTDEV_COPY_BATCH 24
+
+struct gntdev_copy_batch {
+ struct gnttab_copy ops[GNTDEV_COPY_BATCH];
+ struct page *pages[GNTDEV_COPY_BATCH];
+ s16 __user *status[GNTDEV_COPY_BATCH];
+ unsigned int nr_ops;
+ unsigned int nr_pages;
+};
+
+static int gntdev_get_page(struct gntdev_copy_batch *batch, void __user *virt,
+ bool writeable, unsigned long *gfn)
+{
+ unsigned long addr = (unsigned long)virt;
+ struct page *page;
+ unsigned long xen_pfn;
+ int ret;
+
+ ret = get_user_pages_fast(addr, 1, writeable, &page);
+ if (ret < 0)
+ return ret;
+
+ batch->pages[batch->nr_pages++] = page;
+
+ xen_pfn = page_to_xen_pfn(page) + XEN_PFN_DOWN(addr & ~PAGE_MASK);
+ *gfn = pfn_to_gfn(xen_pfn);
+
+ return 0;
+}
+
+static void gntdev_put_pages(struct gntdev_copy_batch *batch)
+{
+ unsigned int i;
+
+ for (i = 0; i < batch->nr_pages; i++)
+ put_page(batch->pages[i]);
+ batch->nr_pages = 0;
+}
+
+static int gntdev_copy(struct gntdev_copy_batch *batch)
+{
+ unsigned int i;
+
+ gnttab_batch_copy(batch->ops, batch->nr_ops);
+ gntdev_put_pages(batch);
+
+ /*
+ * For each completed op, update the status if the op failed
+ * and all previous ops for the segment were successful.
+ */
+ for (i = 0; i < batch->nr_ops; i++) {
+ s16 status = batch->ops[i].status;
+ s16 old_status;
+
+ if (status == GNTST_okay)
+ continue;
+
+ if (__get_user(old_status, batch->status[i]))
+ return -EFAULT;
+
+ if (old_status != GNTST_okay)
+ continue;
+
+ if (__put_user(status, batch->status[i]))
+ return -EFAULT;
+ }
+
+ batch->nr_ops = 0;
+ return 0;
+}
+
+static int gntdev_grant_copy_seg(struct gntdev_copy_batch *batch,
+ struct gntdev_grant_copy_segment *seg,
+ s16 __user *status)
+{
+ uint16_t copied = 0;
+
+ /*
+ * Disallow local -> local copies since there is only space in
+ * batch->pages for one page per-op and this would be a very
+ * expensive memcpy().
+ */
+ if (!(seg->flags & (GNTCOPY_source_gref | GNTCOPY_dest_gref)))
+ return -EINVAL;
+
+ /* Can't cross page if source/dest is a grant ref. */
+ if (seg->flags & GNTCOPY_source_gref) {
+ if (seg->source.foreign.offset + seg->len > XEN_PAGE_SIZE)
+ return -EINVAL;
+ }
+ if (seg->flags & GNTCOPY_dest_gref) {
+ if (seg->dest.foreign.offset + seg->len > XEN_PAGE_SIZE)
+ return -EINVAL;
+ }
+
+ if (put_user(GNTST_okay, status))
+ return -EFAULT;
+
+ while (copied < seg->len) {
+ struct gnttab_copy *op;
+ void __user *virt;
+ size_t len, off;
+ unsigned long gfn;
+ int ret;
+
+ if (batch->nr_ops >= GNTDEV_COPY_BATCH) {
+ ret = gntdev_copy(batch);
+ if (ret < 0)
+ return ret;
+ }
+
+ len = seg->len - copied;
+
+ op = &batch->ops[batch->nr_ops];
+ op->flags = 0;
+
+ if (seg->flags & GNTCOPY_source_gref) {
+ op->source.u.ref = seg->source.foreign.ref;
+ op->source.domid = seg->source.foreign.domid;
+ op->source.offset = seg->source.foreign.offset + copied;
+ op->flags |= GNTCOPY_source_gref;
+ } else {
+ virt = seg->source.virt + copied;
+ off = (unsigned long)virt & ~XEN_PAGE_MASK;
+ len = min(len, (size_t)XEN_PAGE_SIZE - off);
+
+ ret = gntdev_get_page(batch, virt, false, &gfn);
+ if (ret < 0)
+ return ret;
+
+ op->source.u.gmfn = gfn;
+ op->source.domid = DOMID_SELF;
+ op->source.offset = off;
+ }
+
+ if (seg->flags & GNTCOPY_dest_gref) {
+ op->dest.u.ref = seg->dest.foreign.ref;
+ op->dest.domid = seg->dest.foreign.domid;
+ op->dest.offset = seg->dest.foreign.offset + copied;
+ op->flags |= GNTCOPY_dest_gref;
+ } else {
+ virt = seg->dest.virt + copied;
+ off = (unsigned long)virt & ~XEN_PAGE_MASK;
+ len = min(len, (size_t)XEN_PAGE_SIZE - off);
+
+ ret = gntdev_get_page(batch, virt, true, &gfn);
+ if (ret < 0)
+ return ret;
+
+ op->dest.u.gmfn = gfn;
+ op->dest.domid = DOMID_SELF;
+ op->dest.offset = off;
+ }
+
+ op->len = len;
+ copied += len;
+
+ batch->status[batch->nr_ops] = status;
+ batch->nr_ops++;
+ }
+
+ return 0;
+}
+
+static long gntdev_ioctl_grant_copy(struct gntdev_priv *priv, void __user *u)
+{
+ struct ioctl_gntdev_grant_copy copy;
+ struct gntdev_copy_batch batch;
+ unsigned int i;
+ int ret = 0;
+
+ if (copy_from_user(&copy, u, sizeof(copy)))
+ return -EFAULT;
+
+ batch.nr_ops = 0;
+ batch.nr_pages = 0;
+
+ for (i = 0; i < copy.count; i++) {
+ struct gntdev_grant_copy_segment seg;
+
+ if (copy_from_user(&seg, &copy.segments[i], sizeof(seg))) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ ret = gntdev_grant_copy_seg(&batch, &seg, &copy.segments[i].status);
+ if (ret < 0)
+ goto out;
+
+ cond_resched();
+ }
+ if (batch.nr_ops)
+ ret = gntdev_copy(&batch);
+ return ret;
+
+ out:
+ gntdev_put_pages(&batch);
+ return ret;
+}
+
static long gntdev_ioctl(struct file *flip,
unsigned int cmd, unsigned long arg)
{
@@ -767,6 +967,9 @@ static long gntdev_ioctl(struct file *flip,
case IOCTL_GNTDEV_SET_UNMAP_NOTIFY:
return gntdev_ioctl_notify(priv, ptr);
+ case IOCTL_GNTDEV_GRANT_COPY:
+ return gntdev_ioctl_grant_copy(priv, ptr);
+
default:
pr_debug("priv %p, unknown cmd %x\n", priv, cmd);
return -ENOIOCTLCMD;
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index c49f79ed58c5..effbaf91791f 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -128,7 +128,7 @@ struct unmap_refs_callback_data {
int result;
};
-static struct gnttab_ops *gnttab_interface;
+static const struct gnttab_ops *gnttab_interface;
static int grant_table_version;
static int grefs_per_grant_frame;
@@ -1013,7 +1013,7 @@ static int gnttab_map(unsigned int start_idx, unsigned int end_idx)
return rc;
}
-static struct gnttab_ops gnttab_v1_ops = {
+static const struct gnttab_ops gnttab_v1_ops = {
.map_frames = gnttab_map_frames_v1,
.unmap_frames = gnttab_unmap_frames_v1,
.update_entry = gnttab_update_entry_v1,
diff --git a/drivers/xen/pcpu.c b/drivers/xen/pcpu.c
index 49e88f2ce7a1..cdc6daa7a9f6 100644
--- a/drivers/xen/pcpu.c
+++ b/drivers/xen/pcpu.c
@@ -78,7 +78,7 @@ static int xen_pcpu_down(uint32_t cpu_id)
.u.cpu_ol.cpuid = cpu_id,
};
- return HYPERVISOR_dom0_op(&op);
+ return HYPERVISOR_platform_op(&op);
}
static int xen_pcpu_up(uint32_t cpu_id)
@@ -89,7 +89,7 @@ static int xen_pcpu_up(uint32_t cpu_id)
.u.cpu_ol.cpuid = cpu_id,
};
- return HYPERVISOR_dom0_op(&op);
+ return HYPERVISOR_platform_op(&op);
}
static ssize_t show_online(struct device *dev,
@@ -277,7 +277,7 @@ static int sync_pcpu(uint32_t cpu, uint32_t *max_cpu)
.u.pcpu_info.xen_cpuid = cpu,
};
- ret = HYPERVISOR_dom0_op(&op);
+ ret = HYPERVISOR_platform_op(&op);
if (ret)
return ret;
@@ -364,7 +364,7 @@ int xen_pcpu_id(uint32_t acpi_id)
op.cmd = XENPF_get_cpuinfo;
while (cpu_id <= max_id) {
op.u.pcpu_info.xen_cpuid = cpu_id;
- if (HYPERVISOR_dom0_op(&op)) {
+ if (HYPERVISOR_platform_op(&op)) {
cpu_id++;
continue;
}
diff --git a/drivers/xen/time.c b/drivers/xen/time.c
new file mode 100644
index 000000000000..71078425c9ea
--- /dev/null
+++ b/drivers/xen/time.c
@@ -0,0 +1,88 @@
+/*
+ * Xen stolen ticks accounting.
+ */
+#include <linux/kernel.h>
+#include <linux/kernel_stat.h>
+#include <linux/math64.h>
+#include <linux/gfp.h>
+
+#include <asm/xen/hypervisor.h>
+#include <asm/xen/hypercall.h>
+
+#include <xen/events.h>
+#include <xen/features.h>
+#include <xen/interface/xen.h>
+#include <xen/interface/vcpu.h>
+#include <xen/xen-ops.h>
+
+/* runstate info updated by Xen */
+static DEFINE_PER_CPU(struct vcpu_runstate_info, xen_runstate);
+
+/* return an consistent snapshot of 64-bit time/counter value */
+static u64 get64(const u64 *p)
+{
+ u64 ret;
+
+ if (BITS_PER_LONG < 64) {
+ u32 *p32 = (u32 *)p;
+ u32 h, l, h2;
+
+ /*
+ * Read high then low, and then make sure high is
+ * still the same; this will only loop if low wraps
+ * and carries into high.
+ * XXX some clean way to make this endian-proof?
+ */
+ do {
+ h = READ_ONCE(p32[1]);
+ l = READ_ONCE(p32[0]);
+ h2 = READ_ONCE(p32[1]);
+ } while(h2 != h);
+
+ ret = (((u64)h) << 32) | l;
+ } else
+ ret = READ_ONCE(*p);
+
+ return ret;
+}
+
+/*
+ * Runstate accounting
+ */
+void xen_get_runstate_snapshot(struct vcpu_runstate_info *res)
+{
+ u64 state_time;
+ struct vcpu_runstate_info *state;
+
+ BUG_ON(preemptible());
+
+ state = this_cpu_ptr(&xen_runstate);
+
+ /*
+ * The runstate info is always updated by the hypervisor on
+ * the current CPU, so there's no need to use anything
+ * stronger than a compiler barrier when fetching it.
+ */
+ do {
+ state_time = get64(&state->state_entry_time);
+ *res = READ_ONCE(*state);
+ } while (get64(&state->state_entry_time) != state_time);
+}
+
+/* return true when a vcpu could run but has no real cpu to run on */
+bool xen_vcpu_stolen(int vcpu)
+{
+ return per_cpu(xen_runstate, vcpu).state == RUNSTATE_runnable;
+}
+
+void xen_setup_runstate_info(int cpu)
+{
+ struct vcpu_register_runstate_memory_area area;
+
+ area.addr.v = &per_cpu(xen_runstate, cpu);
+
+ if (HYPERVISOR_vcpu_op(VCPUOP_register_runstate_memory_area,
+ cpu, &area))
+ BUG();
+}
+
diff --git a/drivers/xen/xen-acpi-cpuhotplug.c b/drivers/xen/xen-acpi-cpuhotplug.c
index f4a369429553..fdc9e67b842d 100644
--- a/drivers/xen/xen-acpi-cpuhotplug.c
+++ b/drivers/xen/xen-acpi-cpuhotplug.c
@@ -206,7 +206,7 @@ static int xen_hotadd_cpu(struct acpi_processor *pr)
op.u.cpu_add.acpi_id = pr->acpi_id;
op.u.cpu_add.pxm = pxm;
- cpu_id = HYPERVISOR_dom0_op(&op);
+ cpu_id = HYPERVISOR_platform_op(&op);
if (cpu_id < 0)
pr_err(PREFIX "Failed to hotadd CPU for acpi_id %d\n",
pr->acpi_id);
diff --git a/drivers/xen/xen-acpi-pad.c b/drivers/xen/xen-acpi-pad.c
index f83b754505f8..23d1808fe027 100644
--- a/drivers/xen/xen-acpi-pad.c
+++ b/drivers/xen/xen-acpi-pad.c
@@ -36,7 +36,7 @@ static int xen_acpi_pad_idle_cpus(unsigned int idle_nums)
op.u.core_parking.type = XEN_CORE_PARKING_SET;
op.u.core_parking.idle_nums = idle_nums;
- return HYPERVISOR_dom0_op(&op);
+ return HYPERVISOR_platform_op(&op);
}
static int xen_acpi_pad_idle_cpus_num(void)
@@ -46,7 +46,7 @@ static int xen_acpi_pad_idle_cpus_num(void)
op.cmd = XENPF_core_parking;
op.u.core_parking.type = XEN_CORE_PARKING_GET;
- return HYPERVISOR_dom0_op(&op)
+ return HYPERVISOR_platform_op(&op)
?: op.u.core_parking.idle_nums;
}
diff --git a/drivers/xen/xen-acpi-processor.c b/drivers/xen/xen-acpi-processor.c
index 70fa438000af..076970a54f89 100644
--- a/drivers/xen/xen-acpi-processor.c
+++ b/drivers/xen/xen-acpi-processor.c
@@ -116,7 +116,7 @@ static int push_cxx_to_hypervisor(struct acpi_processor *_pr)
set_xen_guest_handle(op.u.set_pminfo.power.states, dst_cx_states);
if (!no_hypercall)
- ret = HYPERVISOR_dom0_op(&op);
+ ret = HYPERVISOR_platform_op(&op);
if (!ret) {
pr_debug("ACPI CPU%u - C-states uploaded.\n", _pr->acpi_id);
@@ -244,7 +244,7 @@ static int push_pxx_to_hypervisor(struct acpi_processor *_pr)
}
if (!no_hypercall)
- ret = HYPERVISOR_dom0_op(&op);
+ ret = HYPERVISOR_platform_op(&op);
if (!ret) {
struct acpi_processor_performance *perf;
@@ -302,7 +302,7 @@ static unsigned int __init get_max_acpi_id(void)
info = &op.u.pcpu_info;
info->xen_cpuid = 0;
- ret = HYPERVISOR_dom0_op(&op);
+ ret = HYPERVISOR_platform_op(&op);
if (ret)
return NR_CPUS;
@@ -310,7 +310,7 @@ static unsigned int __init get_max_acpi_id(void)
last_cpu = op.u.pcpu_info.max_present;
for (i = 0; i <= last_cpu; i++) {
info->xen_cpuid = i;
- ret = HYPERVISOR_dom0_op(&op);
+ ret = HYPERVISOR_platform_op(&op);
if (ret)
continue;
max_acpi_id = max(info->acpi_id, max_acpi_id);
diff --git a/drivers/xen/xenbus/xenbus_comms.c b/drivers/xen/xenbus/xenbus_comms.c
index fdb0f339d0a7..ecdecce80a6c 100644
--- a/drivers/xen/xenbus/xenbus_comms.c
+++ b/drivers/xen/xenbus/xenbus_comms.c
@@ -123,14 +123,14 @@ int xb_write(const void *data, unsigned len)
avail = len;
/* Must write data /after/ reading the consumer index. */
- mb();
+ virt_mb();
memcpy(dst, data, avail);
data += avail;
len -= avail;
/* Other side must not see new producer until data is there. */
- wmb();
+ virt_wmb();
intf->req_prod += avail;
/* Implies mb(): other side will see the updated producer. */
@@ -180,14 +180,14 @@ int xb_read(void *data, unsigned len)
avail = len;
/* Must read data /after/ reading the producer index. */
- rmb();
+ virt_rmb();
memcpy(data, src, avail);
data += avail;
len -= avail;
/* Other side must not see free space until we've copied out */
- mb();
+ virt_mb();
intf->rsp_cons += avail;
pr_debug("Finished read of %i bytes (%i to go)\n", avail, len);
diff --git a/drivers/xen/xenfs/xensyms.c b/drivers/xen/xenfs/xensyms.c
index f8b12856753f..a03f261b12d8 100644
--- a/drivers/xen/xenfs/xensyms.c
+++ b/drivers/xen/xenfs/xensyms.c
@@ -31,7 +31,7 @@ static int xensyms_next_sym(struct xensyms *xs)
symnum = symdata->symnum;
- ret = HYPERVISOR_dom0_op(&xs->op);
+ ret = HYPERVISOR_platform_op(&xs->op);
if (ret < 0)
return ret;
@@ -50,7 +50,7 @@ static int xensyms_next_sym(struct xensyms *xs)
set_xen_guest_handle(symdata->name, xs->name);
symdata->symnum--; /* Rewind */
- ret = HYPERVISOR_dom0_op(&xs->op);
+ ret = HYPERVISOR_platform_op(&xs->op);
if (ret < 0)
return ret;
}
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-23 05:13:22 +0000