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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] Restructure metaphysical mode rid management to ensure easy
ChangeSet 1.1564.1.4, 2005/05/26 15:28:39-06:00, djm@xxxxxxxxxxxxxxx
Restructure metaphysical mode rid management to ensure easy
accessibility from rsm/ssm psr.dt hyperprivops.
Signed-off by: Dan Magenheimer <dan.magenheimer@xxxxxx>
arch/ia64/asm-offsets.c | 4 ++++
arch/ia64/domain.c | 4 +++-
arch/ia64/regionreg.c | 26 +++++++++++++-------------
arch/ia64/vcpu.c | 8 +++++++-
include/asm-ia64/domain.h | 5 +++--
5 files changed, 30 insertions(+), 17 deletions(-)
diff -Nru a/xen/arch/ia64/asm-offsets.c b/xen/arch/ia64/asm-offsets.c
--- a/xen/arch/ia64/asm-offsets.c 2005-06-10 14:02:35 -04:00
+++ b/xen/arch/ia64/asm-offsets.c 2005-06-10 14:02:35 -04:00
@@ -51,6 +51,7 @@
DEFINE(XSI_METAPHYS_OFS, offsetof(vcpu_info_t, arch.metaphysical_mode));
DEFINE(XSI_INCOMPL_REG_OFS, offsetof(vcpu_info_t,
arch.incomplete_regframe));
DEFINE(XSI_PEND_OFS, offsetof(vcpu_info_t, arch.pending_interruption));
+ DEFINE(XSI_RR0_OFS, offsetof(vcpu_info_t, arch.rrs[0]));
//DEFINE(IA64_TASK_BLOCKED_OFFSET,offsetof (struct task_struct,
blocked));
//DEFINE(IA64_TASK_CLEAR_CHILD_TID_OFFSET,offsetof (struct task_struct,
clear_child_tid));
//DEFINE(IA64_TASK_GROUP_LEADER_OFFSET, offsetof (struct task_struct,
group_leader));
@@ -62,6 +63,9 @@
//DEFINE(IA64_TASK_TGID_OFFSET, offsetof (struct task_struct, tgid));
DEFINE(IA64_TASK_THREAD_KSP_OFFSET, offsetof (struct exec_domain,
arch._thread.ksp));
DEFINE(IA64_TASK_THREAD_ON_USTACK_OFFSET, offsetof (struct exec_domain,
arch._thread.on_ustack));
+
+ DEFINE(IA64_VCPU_META_RR0_OFFSET, offsetof (struct exec_domain,
arch.metaphysical_rr0));
+ DEFINE(IA64_VCPU_META_SAVED_RR0_OFFSET, offsetof (struct exec_domain,
arch.metaphysical_saved_rr0));
BLANK();
diff -Nru a/xen/arch/ia64/domain.c b/xen/arch/ia64/domain.c
--- a/xen/arch/ia64/domain.c 2005-06-10 14:02:35 -04:00
+++ b/xen/arch/ia64/domain.c 2005-06-10 14:02:35 -04:00
@@ -244,9 +244,11 @@
}
#endif
d->max_pages = (128*1024*1024)/PAGE_SIZE; // 128MB default // FIXME
- if ((d->metaphysical_rid = allocate_metaphysical_rid()) == -1UL)
+ if ((d->arch.metaphysical_rr0 = allocate_metaphysical_rr0()) == -1UL)
BUG();
ed->vcpu_info->arch.metaphysical_mode = 1;
+ ed->arch.metaphysical_rr0 = d->arch.metaphysical_rr0;
+ ed->arch.metaphysical_saved_rr0 = d->arch.metaphysical_rr0;
#define DOMAIN_RID_BITS_DEFAULT 18
if (!allocate_rid_range(d,DOMAIN_RID_BITS_DEFAULT)) // FIXME
BUG();
diff -Nru a/xen/arch/ia64/regionreg.c b/xen/arch/ia64/regionreg.c
--- a/xen/arch/ia64/regionreg.c 2005-06-10 14:02:36 -04:00
+++ b/xen/arch/ia64/regionreg.c 2005-06-10 14:02:36 -04:00
@@ -63,9 +63,14 @@
// returns -1 if none available
-unsigned long allocate_metaphysical_rid(void)
+unsigned long allocate_metaphysical_rr0(void)
{
- unsigned long rid = allocate_reserved_rid();
+ ia64_rr rrv;
+
+ rrv.rid = allocate_reserved_rid();
+ rrv.ps = PAGE_SHIFT;
+ rrv.ve = 0;
+ return rrv.rrval;
}
int deallocate_metaphysical_rid(unsigned long rid)
@@ -282,22 +287,20 @@
if (rreg == 6) newrrv.ve = VHPT_ENABLED_REGION_7;
else newrrv.ve = VHPT_ENABLED_REGION_0_TO_6;
newrrv.ps = PAGE_SHIFT;
+ if (rreg == 0) ed->arch.metaphysical_saved_rr0 = newrrv.rrval;
set_rr(rr,newrrv.rrval);
}
return 1;
}
// set rr0 to the passed rid (for metaphysical mode so don't use domain offset
-int set_metaphysical_rr(unsigned long rr, unsigned long rid)
+int set_metaphysical_rr0(void)
{
+ struct exec_domain *ed = current;
ia64_rr rrv;
- rrv.rrval = 0;
- rrv.rid = rid;
- rrv.ps = PAGE_SHIFT;
// rrv.ve = 1; FIXME: TURN ME BACK ON WHEN VHPT IS WORKING
- rrv.ve = 0;
- set_rr(rr,rrv.rrval);
+ set_rr(0,ed->arch.metaphysical_rr0);
}
// validates/changes region registers 0-6 in the currently executing domain
@@ -321,8 +324,7 @@
{
ia64_rr rrv;
- rrv.rrval = 0;
- rrv.rid = ed->domain->metaphysical_rid;
+ rrv.rrval = ed->domain->arch.metaphysical_rr0;
rrv.ps = PAGE_SHIFT;
rrv.ve = 1;
if (!ed->vcpu_info) { printf("Stopping in init_all_rr\n"); dummy(); }
@@ -375,9 +377,7 @@
if (ed->vcpu_info->arch.metaphysical_mode) {
ia64_rr rrv;
- rrv.rrval = 0;
- rrv.rid = ed->domain->metaphysical_rid;
- rrv.ps = PAGE_SHIFT;
+ rrv.rrval = ed->domain->arch.metaphysical_rr0;
rrv.ve = 1;
rr0 = rrv.rrval;
set_rr_no_srlz(0x0000000000000000L, rr0);
diff -Nru a/xen/arch/ia64/vcpu.c b/xen/arch/ia64/vcpu.c
--- a/xen/arch/ia64/vcpu.c 2005-06-10 14:02:36 -04:00
+++ b/xen/arch/ia64/vcpu.c 2005-06-10 14:02:36 -04:00
@@ -117,7 +117,7 @@
{
/* only do something if mode changes */
if (!!newmode ^ !!PSCB(vcpu,metaphysical_mode)) {
- if (newmode)
set_metaphysical_rr(0,vcpu->domain->metaphysical_rid);
+ if (newmode) set_metaphysical_rr0();
else if (PSCB(vcpu,rrs[0]) != -1)
set_one_rr(0, PSCB(vcpu,rrs[0]));
PSCB(vcpu,metaphysical_mode) = newmode;
@@ -167,6 +167,12 @@
IA64FAULT vcpu_set_psr_dt(VCPU *vcpu)
{
vcpu_set_metaphysical_mode(vcpu,FALSE);
+ return IA64_NO_FAULT;
+}
+
+IA64FAULT vcpu_set_psr_i(VCPU *vcpu)
+{
+ PSCB(vcpu,interrupt_delivery_enabled) = 1;
return IA64_NO_FAULT;
}
diff -Nru a/xen/include/asm-ia64/domain.h b/xen/include/asm-ia64/domain.h
--- a/xen/include/asm-ia64/domain.h 2005-06-10 14:02:35 -04:00
+++ b/xen/include/asm-ia64/domain.h 2005-06-10 14:02:35 -04:00
@@ -26,7 +26,7 @@
struct arch_domain {
struct mm_struct *active_mm;
struct mm_struct *mm;
- int metaphysical_rid;
+ int metaphysical_rr0;
int starting_rid; /* first RID assigned to domain */
int ending_rid; /* one beyond highest RID assigned to domain */
int rid_bits; /* number of virtual rid bits (default: 18) */
@@ -46,7 +46,6 @@
u64 entry;
#endif
};
-#define metaphysical_rid arch.metaphysical_rid
#define starting_rid arch.starting_rid
#define ending_rid arch.ending_rid
#define rid_bits arch.rid_bits
@@ -74,6 +73,8 @@
unsigned long xen_timer_interval;
#endif
void *regs; /* temporary until find a better way to do privops */
+ int metaphysical_rr0; // from arch_domain (so is pinned)
+ int metaphysical_saved_rr0; // from arch_domain (so is
pinned)
struct mm_struct *active_mm;
struct thread_struct _thread; // this must be last
#ifdef CONFIG_VTI
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