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[Xen-changelog] [IA64] move evtchn_vector to shared_info



# HG changeset patch
# User awilliam@xxxxxxxxxxx
# Node ID 90329e7d6be5a30ebe7c63453428a13ed0c97c01
# Parent  b487f4e1b09f9f127ba99afedebc39ee448a7df6
[IA64] move evtchn_vector to shared_info

Move evtchn_vector from vcpu_info to shared_info.

Signed-off-by: Tristan Gingold <tristan.gingold@xxxxxxxx>
---
 linux-2.6-xen-sparse/arch/ia64/xen/drivers/evtchn_ia64.c |   17 ++-------------
 linux-2.6-xen-sparse/arch/ia64/xen/hypercall.S           |    2 -
 tools/libxc/xc_ia64_stubs.c                              |    2 -
 tools/libxc/xc_linux_build.c                             |    2 -
 xen/arch/ia64/xen/domain.c                               |   13 +++--------
 xen/arch/ia64/xen/hypercall.c                            |    3 --
 xen/arch/ia64/xen/vcpu.c                                 |    4 +--
 xen/include/asm-ia64/event.h                             |    2 -
 xen/include/public/arch-ia64.h                           |    7 +++---
 9 files changed, 17 insertions(+), 35 deletions(-)

diff -r b487f4e1b09f -r 90329e7d6be5 
linux-2.6-xen-sparse/arch/ia64/xen/drivers/evtchn_ia64.c
--- a/linux-2.6-xen-sparse/arch/ia64/xen/drivers/evtchn_ia64.c  Sun May 14 
09:16:21 2006 -0600
+++ b/linux-2.6-xen-sparse/arch/ia64/xen/drivers/evtchn_ia64.c  Mon May 15 
10:53:23 2006 -0600
@@ -246,25 +246,14 @@ static struct irqaction evtchn_irqaction
        .name =         "xen-event-channel"
 };
 
-int evtchn_irq = 0xe9;
+static int evtchn_irq = 0xe9;
 void __init evtchn_init(void)
 {
     shared_info_t *s = HYPERVISOR_shared_info;
-    vcpu_info_t   *vcpu_info = &s->vcpu_info[smp_processor_id()];
-
-#if 0
-    int ret;
-    irq = assign_irq_vector(AUTO_ASSIGN);
-    ret = request_irq(irq, evtchn_interrupt, 0, "xen-event-channel", NULL);
-    if (ret < 0)
-    {
-       printk("xen-event-channel unable to get irq %d (%d)\n", irq, ret);
-       return;
-    }
-#endif
+
     register_percpu_irq(evtchn_irq, &evtchn_irqaction);
 
-    vcpu_info->arch.evtchn_vector = evtchn_irq;
+    s->arch.evtchn_vector = evtchn_irq;
     printk("xen-event-channel using irq %d\n", evtchn_irq);
 
     spin_lock_init(&irq_mapping_update_lock);
diff -r b487f4e1b09f -r 90329e7d6be5 
linux-2.6-xen-sparse/arch/ia64/xen/hypercall.S
--- a/linux-2.6-xen-sparse/arch/ia64/xen/hypercall.S    Sun May 14 09:16:21 
2006 -0600
+++ b/linux-2.6-xen-sparse/arch/ia64/xen/hypercall.S    Mon May 15 10:53:23 
2006 -0600
@@ -247,7 +247,7 @@ 1:  mov r8=r32
        XEN_RESTORE_PSR_IC
        ;;
        br.ret.sptk.many rp
-END(xen_set_rr)
+END(xen_set_kr)
 
 GLOBAL_ENTRY(xen_fc)
        movl r8=running_on_xen;;
diff -r b487f4e1b09f -r 90329e7d6be5 tools/libxc/xc_ia64_stubs.c
--- a/tools/libxc/xc_ia64_stubs.c       Sun May 14 09:16:21 2006 -0600
+++ b/tools/libxc/xc_ia64_stubs.c       Mon May 15 10:53:23 2006 -0600
@@ -723,7 +723,7 @@ int xc_hvm_build(int xc_handle,
 
     ctxt->flags = VGCF_VMX_GUEST;
     ctxt->regs.cr_iip = 0x80000000ffffffb0UL;
-    ctxt->vcpu.privregs = 0;
+    ctxt->privregs = 0;
 
     memset( &launch_op, 0, sizeof(launch_op) );
 
diff -r b487f4e1b09f -r 90329e7d6be5 tools/libxc/xc_linux_build.c
--- a/tools/libxc/xc_linux_build.c      Sun May 14 09:16:21 2006 -0600
+++ b/tools/libxc/xc_linux_build.c      Mon May 15 10:53:23 2006 -0600
@@ -1114,7 +1114,7 @@ static int xc_linux_build_internal(int x
     ctxt->regs.ar_fpsr = xc_ia64_fpsr_default();
     /* currently done by hypervisor, should move here */
     /* ctxt->regs.r28 = dom_fw_setup(); */
-    ctxt->vcpu.privregs = 0;
+    ctxt->privregs = 0;
     ctxt->sys_pgnr = 3;
     i = 0; /* silence unused variable warning */
 #else /* x86 */
diff -r b487f4e1b09f -r 90329e7d6be5 xen/arch/ia64/xen/domain.c
--- a/xen/arch/ia64/xen/domain.c        Sun May 14 09:16:21 2006 -0600
+++ b/xen/arch/ia64/xen/domain.c        Mon May 15 10:53:23 2006 -0600
@@ -269,11 +269,7 @@ fail_nomem:
 
 void arch_getdomaininfo_ctxt(struct vcpu *v, struct vcpu_guest_context *c)
 {
-       struct pt_regs *regs = vcpu_regs (v);
-
-       c->regs = *regs;
-       c->vcpu.evtchn_vector = v->vcpu_info->arch.evtchn_vector;
-
+       c->regs = *vcpu_regs (v);
        c->shared = v->domain->shared_info->arch;
 }
 
@@ -312,11 +308,10 @@ int arch_set_info_guest(struct vcpu *v, 
        }
        new_thread(v, regs->cr_iip, 0, 0);
 
-       v->vcpu_info->arch.evtchn_vector = c->vcpu.evtchn_vector;
-       if ( c->vcpu.privregs && copy_from_user(v->arch.privregs,
-                          c->vcpu.privregs, sizeof(mapped_regs_t))) {
+       if ( c->privregs && copy_from_user(v->arch.privregs,
+                          c->privregs, sizeof(mapped_regs_t))) {
            printk("Bad ctxt address in arch_set_info_guest: %p\n",
-                  c->vcpu.privregs);
+                  c->privregs);
            return -EFAULT;
        }
 
diff -r b487f4e1b09f -r 90329e7d6be5 xen/arch/ia64/xen/hypercall.c
--- a/xen/arch/ia64/xen/hypercall.c     Sun May 14 09:16:21 2006 -0600
+++ b/xen/arch/ia64/xen/hypercall.c     Mon May 15 10:53:23 2006 -0600
@@ -153,9 +153,6 @@ fw_hypercall_ipi (struct pt_regs *regs)
                c.regs.cr_iip = targ_regs->cr_iip;
                c.regs.r1 = targ_regs->r1;
                
-               /* Copy from vcpu 0.  */
-               c.vcpu.evtchn_vector =
-                       current->domain->vcpu[0]->vcpu_info->arch.evtchn_vector;
                if (arch_set_info_guest (targ, &c) != 0) {
                        printf ("arch_boot_vcpu: failure\n");
                        return;
diff -r b487f4e1b09f -r 90329e7d6be5 xen/arch/ia64/xen/vcpu.c
--- a/xen/arch/ia64/xen/vcpu.c  Sun May 14 09:16:21 2006 -0600
+++ b/xen/arch/ia64/xen/vcpu.c  Mon May 15 10:53:23 2006 -0600
@@ -682,9 +682,9 @@ UINT64 vcpu_check_pending_interrupts(VCP
         */
 check_start:
        if (event_pending(vcpu) && 
-               !test_bit(vcpu->vcpu_info->arch.evtchn_vector,
+               !test_bit(vcpu->domain->shared_info->arch.evtchn_vector,
                        &PSCBX(vcpu, insvc[0])))
-               vcpu_pend_interrupt(vcpu, vcpu->vcpu_info->arch.evtchn_vector);
+               vcpu_pend_interrupt(vcpu, 
vcpu->domain->shared_info->arch.evtchn_vector);
 
        p = &PSCBX(vcpu,irr[3]);
        r = &PSCBX(vcpu,insvc[3]);
diff -r b487f4e1b09f -r 90329e7d6be5 xen/include/asm-ia64/event.h
--- a/xen/include/asm-ia64/event.h      Sun May 14 09:16:21 2006 -0600
+++ b/xen/include/asm-ia64/event.h      Mon May 15 10:53:23 2006 -0600
@@ -29,7 +29,7 @@ static inline void evtchn_notify(struct 
         smp_send_event_check_cpu(v->processor);
 
     if(!VMX_DOMAIN(v))
-       vcpu_pend_interrupt(v, v->vcpu_info->arch.evtchn_vector);
+       vcpu_pend_interrupt(v, v->domain->shared_info->arch.evtchn_vector);
 }
 
 /* Note: Bitwise operations result in fast code with no branches. */
diff -r b487f4e1b09f -r 90329e7d6be5 xen/include/public/arch-ia64.h
--- a/xen/include/public/arch-ia64.h    Sun May 14 09:16:21 2006 -0600
+++ b/xen/include/public/arch-ia64.h    Mon May 15 10:53:23 2006 -0600
@@ -293,8 +293,6 @@ typedef struct {
 } mapped_regs_t;
 
 typedef struct {
-    mapped_regs_t *privregs;
-    int evtchn_vector;
 } arch_vcpu_info_t;
 
 typedef mapped_regs_t vpd_t;
@@ -302,6 +300,9 @@ typedef struct {
 typedef struct {
     unsigned int flags;
     unsigned long start_info_pfn;
+
+    /* Interrupt vector for event channel.  */
+    int evtchn_vector;
 } arch_shared_info_t;
 
 typedef struct {
@@ -321,7 +322,7 @@ typedef struct vcpu_guest_context {
     unsigned long vm_assist;   /* VMASST_TYPE_* bitmap, now none on IPF */
 
     cpu_user_regs_t regs;
-    arch_vcpu_info_t vcpu;
+    mapped_regs_t *privregs;
     arch_shared_info_t shared;
     arch_initrd_info_t initrd;
     char cmdline[IA64_COMMAND_LINE_SIZE];

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