diff options
Diffstat (limited to 'arch/x86/xen/enlighten.c')
| -rw-r--r-- | arch/x86/xen/enlighten.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 5525163a039..974a528458a 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); } @@ -1248,6 +1262,14 @@ asmlinkage void __init xen_start_kernel(void) if (pci_xen) x86_init.pci.arch_init = pci_xen_init; } else { + const struct dom0_vga_console_info *info = + (void *)((char *)xen_start_info + + xen_start_info->console.dom0.info_off); + + xen_init_vga(info, xen_start_info->console.dom0.info_size); + xen_start_info->console.domU.mfn = 0; + xen_start_info->console.domU.evtchn = 0; + /* Make sure ACS will be enabled */ pci_request_acs(); } |