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authorLinus Torvalds <torvalds@linux-foundation.org>2011-07-24 09:06:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-24 09:06:47 -0700
commitc61264f98c1a974ee6f545f61a4ab33b141d6bda (patch)
tree490e82c3bbf1403098b582f589eec378be727d4c /arch/x86/xen/enlighten.c
parenta23a334bd547e9462d9ca4a74608519a1e928848 (diff)
parentbd9ddc875b6659f9f74dcfd285c472bc58041abd (diff)
downloadop-kernel-dev-c61264f98c1a974ee6f545f61a4ab33b141d6bda.zip
op-kernel-dev-c61264f98c1a974ee6f545f61a4ab33b141d6bda.tar.gz
Merge branch 'upstream/xen-tracing2' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen
* 'upstream/xen-tracing2' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen: xen/trace: use class for multicall trace xen/trace: convert mmu events to use DECLARE_EVENT_CLASS()/DEFINE_EVENT() xen/multicall: move *idx fields to start of mc_buffer xen/multicall: special-case singleton hypercalls xen/multicalls: add unlikely around slowpath in __xen_mc_entry() xen/multicalls: disable MC_DEBUG xen/mmu: tune pgtable alloc/release xen/mmu: use extend_args for more mmuext updates xen/trace: add tlb flush tracepoints xen/trace: add segment desc tracing xen/trace: add xen_pgd_(un)pin tracepoints xen/trace: add ptpage alloc/release tracepoints xen/trace: add mmu tracepoints xen/trace: add multicall tracing xen/trace: set up tracepoint skeleton xen/multicalls: remove debugfs stats trace/xen: add skeleton for Xen trace events
Diffstat (limited to 'arch/x86/xen/enlighten.c')
-rw-r--r--arch/x86/xen/enlighten.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 5325742..974a528 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -341,6 +341,8 @@ static void xen_set_ldt(const void *addr, unsigned entries)
struct mmuext_op *op;
struct multicall_space mcs = xen_mc_entry(sizeof(*op));
+ trace_xen_cpu_set_ldt(addr, entries);
+
op = mcs.args;
op->cmd = MMUEXT_SET_LDT;
op->arg1.linear_addr = (unsigned long)addr;
@@ -496,6 +498,8 @@ static void xen_write_ldt_entry(struct desc_struct *dt, int entrynum,
xmaddr_t mach_lp = arbitrary_virt_to_machine(&dt[entrynum]);
u64 entry = *(u64 *)ptr;
+ trace_xen_cpu_write_ldt_entry(dt, entrynum, entry);
+
preempt_disable();
xen_mc_flush();
@@ -565,6 +569,8 @@ static void xen_write_idt_entry(gate_desc *dt, int entrynum, const gate_desc *g)
unsigned long p = (unsigned long)&dt[entrynum];
unsigned long start, end;
+ trace_xen_cpu_write_idt_entry(dt, entrynum, g);
+
preempt_disable();
start = __this_cpu_read(idt_desc.address);
@@ -619,6 +625,8 @@ static void xen_load_idt(const struct desc_ptr *desc)
static DEFINE_SPINLOCK(lock);
static struct trap_info traps[257];
+ trace_xen_cpu_load_idt(desc);
+
spin_lock(&lock);
__get_cpu_var(idt_desc) = *desc;
@@ -637,6 +645,8 @@ static void xen_load_idt(const struct desc_ptr *desc)
static void xen_write_gdt_entry(struct desc_struct *dt, int entry,
const void *desc, int type)
{
+ trace_xen_cpu_write_gdt_entry(dt, entry, desc, type);
+
preempt_disable();
switch (type) {
@@ -665,6 +675,8 @@ static void xen_write_gdt_entry(struct desc_struct *dt, int entry,
static void __init xen_write_gdt_entry_boot(struct desc_struct *dt, int entry,
const void *desc, int type)
{
+ trace_xen_cpu_write_gdt_entry(dt, entry, desc, type);
+
switch (type) {
case DESC_LDT:
case DESC_TSS:
@@ -684,7 +696,9 @@ static void __init xen_write_gdt_entry_boot(struct desc_struct *dt, int entry,
static void xen_load_sp0(struct tss_struct *tss,
struct thread_struct *thread)
{
- struct multicall_space mcs = xen_mc_entry(0);
+ struct multicall_space mcs;
+
+ mcs = xen_mc_entry(0);
MULTI_stack_switch(mcs.mc, __KERNEL_DS, thread->sp0);
xen_mc_issue(PARAVIRT_LAZY_CPU);
}
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