lguest: make registers per-vcpu

This is the most obvious per-vcpu field: registers.

So this patch moves it from struct lguest to struct vcpu,
and patch the places in which they are used, accordingly

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

1 files changed, 5 insertions, 4 deletions

diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h
index 072d0d4fd0b9..35b331230c55 100644
--- a/drivers/lguest/lg.h
+++ b/drivers/lguest/lg.h
@@ -44,6 +44,10 @@ struct lg_cpu {
         unsigned int id;
         struct lguest *lg;
 
+        /* At end of a page shared mapped over lguest_pages in guest.  */
+        unsigned long regs_page;
+        struct lguest_regs *regs;
+
         /* If a hypercall was asked for, this points to the arguments. */
         struct hcall_args *hcall;
         u32 next_hcall;
@@ -58,9 +62,6 @@ struct lg_cpu {
 /* The private info the thread maintains about the guest. */
 struct lguest
 {
-        /* At end of a page shared mapped over lguest_pages in guest.  */
-        unsigned long regs_page;
-        struct lguest_regs *regs;
         struct lguest_data __user *lguest_data;
         struct task_struct *tsk;
         struct mm_struct *mm;   /* == tsk->mm, but that becomes NULL on exit */
@@ -181,7 +182,7 @@ void lguest_arch_run_guest(struct lg_cpu *cpu);
 void lguest_arch_handle_trap(struct lg_cpu *cpu);
 int lguest_arch_init_hypercalls(struct lg_cpu *cpu);
 int lguest_arch_do_hcall(struct lg_cpu *cpu, struct hcall_args *args);
-void lguest_arch_setup_regs(struct lguest *lg, unsigned long start);
+void lguest_arch_setup_regs(struct lg_cpu *cpu, unsigned long start);
 
 /* <arch>/switcher.S: */
 extern char start_switcher_text[], end_switcher_text[], switch_to_guest[];