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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen-unstable] [IA64] Replace mode_flags by mmu_mode
# HG changeset patch
# User Alex Williamson <alex.williamson@xxxxxx>
# Date 1191253934 21600
# Node ID 5c56ce7b989241e112d97c77e4a1a65b348e2019
# Parent 83239b2890723e0c06bad507bb273a970784b18e
[IA64] Replace mode_flags by mmu_mode
Replace mode_flags by mmu_mode and put it into arch_vmx structure.
Cleanup in vmx_phy_mode.c to prepare for half-physical mode (dt=0,it=1)
Signed-off-by: Tristan Gingold <tgingold@xxxxxxx>
---
xen/arch/ia64/asm-offsets.c | 4 -
xen/arch/ia64/vmx/optvfault.S | 64 +++++++++---------
xen/arch/ia64/vmx/vmx_fault.c | 17 +++-
xen/arch/ia64/vmx/vmx_phy_mode.c | 127 +++++++++++++++++-------------------
xen/arch/ia64/vmx/vmx_vcpu.c | 4 -
xen/include/asm-ia64/domain.h | 2
xen/include/asm-ia64/vmx_phy_mode.h | 17 +---
xen/include/asm-ia64/vmx_vpd.h | 33 ---------
8 files changed, 112 insertions(+), 156 deletions(-)
diff -r 83239b289072 -r 5c56ce7b9892 xen/arch/ia64/asm-offsets.c
--- a/xen/arch/ia64/asm-offsets.c Thu Sep 27 16:29:43 2007 -0600
+++ b/xen/arch/ia64/asm-offsets.c Mon Oct 01 09:52:14 2007 -0600
@@ -59,6 +59,7 @@ void foo(void)
DEFINE(IA64_VCPU_HYPERCALL_CONTINUATION_OFS, offsetof (struct vcpu,
arch.hypercall_continuation));
DEFINE(IA64_VCPU_FP_PSR_OFFSET, offsetof (struct vcpu, arch.fp_psr));
DEFINE(IA64_VCPU_META_RID_DT_OFFSET, offsetof (struct vcpu,
arch.metaphysical_rid_dt));
+ DEFINE(IA64_VCPU_META_RID_D_OFFSET, offsetof (struct vcpu,
arch.metaphysical_rid_d));
DEFINE(IA64_VCPU_META_SAVED_RR0_OFFSET, offsetof (struct vcpu,
arch.metaphysical_saved_rr0));
DEFINE(IA64_VCPU_BREAKIMM_OFFSET, offsetof (struct vcpu,
arch.breakimm));
DEFINE(IA64_VCPU_IVA_OFFSET, offsetof (struct vcpu, arch.iva));
@@ -149,7 +150,7 @@ void foo(void)
DEFINE(SWITCH_MPTA_OFFSET,offsetof(struct vcpu ,arch.arch_vmx.mpta));
DEFINE(IA64_PT_REGS_R16_SLOT, (((offsetof(struct pt_regs,
r16)-sizeof(struct pt_regs))>>3)&0x3f));
DEFINE(IA64_VCPU_FLAGS_OFFSET,offsetof(struct vcpu
,arch.arch_vmx.flags));
- DEFINE(IA64_VCPU_MODE_FLAGS_OFFSET,offsetof(struct vcpu,
arch.mode_flags));
+ DEFINE(IA64_VCPU_MMU_MODE_OFFSET,offsetof(struct vcpu,
arch.arch_vmx.mmu_mode));
BLANK();
@@ -202,7 +203,6 @@ void foo(void)
DEFINE(IA64_VPD_VIFS_OFFSET, offsetof (mapped_regs_t, ifs));
DEFINE(IA64_VLSAPIC_INSVC_BASE_OFFSET, offsetof (struct vcpu,
arch.insvc[0]));
DEFINE(IA64_VPD_VPTA_OFFSET, offsetof (struct mapped_regs, pta));
- DEFINE(IA64_VPD_CR_VPTA_OFFSET, offsetof (cr_t, pta));
DEFINE(XXX_THASH_SIZE, sizeof (thash_data_t));
BLANK();
diff -r 83239b289072 -r 5c56ce7b9892 xen/arch/ia64/vmx/optvfault.S
--- a/xen/arch/ia64/vmx/optvfault.S Thu Sep 27 16:29:43 2007 -0600
+++ b/xen/arch/ia64/vmx/optvfault.S Mon Oct 01 09:52:14 2007 -0600
@@ -149,15 +149,15 @@ vmx_asm_mov_to_rr_back_2:
;;
cmp.eq.or p6,p0=4,r23
;;
- adds r16=IA64_VCPU_MODE_FLAGS_OFFSET,r21
+ adds r16=IA64_VCPU_MMU_MODE_OFFSET,r21
(p6) adds r17=IA64_VCPU_META_SAVED_RR0_OFFSET,r21
;;
- ld4 r16=[r16]
+ ld1 r16=[r16]
cmp.eq p7,p0=r0,r0
(p6) shladd r17=r23,1,r17
;;
(p6) st8 [r17]=r19
- (p6) tbit.nz p6,p7=r16,GUEST_IN_PHY_BIT // Set physical rr if in virt mode
+ (p6) cmp.eq p7,p0=VMX_MMU_VIRTUAL,r16 // Set physical rr if in virt mode
;;
(p7) mov rr[r28]=r19
mov r24=r22
@@ -179,13 +179,13 @@ GLOBAL_ENTRY(vmx_asm_rsm)
dep r26=r27,r26,21,2
;;
add r17=VPD_VPSR_START_OFFSET,r16
- add r22=IA64_VCPU_MODE_FLAGS_OFFSET,r21
+ add r22=IA64_VCPU_MMU_MODE_OFFSET,r21
//r26 is imm24
dep r26=r28,r26,23,1
;;
ld8 r18=[r17]
movl r28=IA64_PSR_IC+IA64_PSR_I+IA64_PSR_DT+IA64_PSR_SI
- ld4 r23=[r22]
+ ld1 r23=[r22]
sub r27=-1,r26 // ~r26
mov r24=b0
;;
@@ -199,22 +199,22 @@ GLOBAL_ENTRY(vmx_asm_rsm)
;;
ld8 r27=[r27]
;;
- tbit.nz p8,p0= r27,IA64_PSR_DFH_BIT
+ tbit.nz p8,p0=r27,IA64_PSR_DFH_BIT
;;
(p8) dep r20=-1,r20,IA64_PSR_DFH_BIT,1 // Keep dfh
;;
mov cr.ipsr=r20
- tbit.nz p6,p0=r23,GUEST_IN_PHY_BIT
+ cmp.ne p6,p0=VMX_MMU_VIRTUAL,r23
;;
tbit.z.or p6,p0=r26,IA64_PSR_DT_BIT
- (p6) br.dptk vmx_resume_to_guest // (DT set or already in phy mode)
+ (p6) br.dptk vmx_resume_to_guest // DT not cleared or already in phy mode
;;
// Switch to meta physical mode.
add r26=IA64_VCPU_META_RID_DT_OFFSET,r21
- dep r23=-1,r23,GUEST_IN_PHY_BIT,1 // Set GUEST_IN_PHY
+ mov r23=VMX_MMU_PHY_DT
;;
ld8 r26=[r26]
- st4 [r22]=r23
+ st1 [r22]=r23
dep.z r28=4,61,3
;;
mov rr[r0]=r26
@@ -245,30 +245,30 @@ GLOBAL_ENTRY(vmx_asm_ssm)
ld8 r29=[r27]
mov r24=b0
;;
- add r22=IA64_VCPU_MODE_FLAGS_OFFSET,r21
+ add r22=IA64_VCPU_MMU_MODE_OFFSET,r21
mov r20=cr.ipsr
or r19=r29,r26
;;
- ld4 r23=[r22]
- st8 [r27]=r19
+ ld1 r23=[r22] // mmu_mode
+ st8 [r27]=r19 // vpsr
or r20=r20,r26
;;
mov cr.ipsr=r20
movl r28=IA64_PSR_DT+IA64_PSR_RT+IA64_PSR_IT
;;
and r19=r28,r19
- tbit.z p6,p0=r23,GUEST_IN_PHY_BIT
- ;;
- cmp.ne.or p6,p0=r28,r19
+ cmp.eq p6,p0=VMX_MMU_VIRTUAL,r23
+ ;;
+ cmp.ne.or p6,p0=r28,r19 // (vpsr & (it+dt+rt)) /= (it+dt+rt) ie stay in phy
(p6) br.dptk vmx_asm_ssm_1
;;
add r26=IA64_VCPU_META_SAVED_RR0_OFFSET,r21
add r27=IA64_VCPU_META_SAVED_RR0_OFFSET+8,r21
- dep r23=0,r23,GUEST_IN_PHY_BIT,1 // Clear GUEST_IN_PHY
+ mov r23=VMX_MMU_VIRTUAL
;;
ld8 r26=[r26]
ld8 r27=[r27]
- st4 [r22]=r23
+ st1 [r22]=r23
dep.z r28=4,61,3
;;
mov rr[r0]=r26
@@ -320,37 +320,37 @@ GLOBAL_ENTRY(vmx_asm_mov_to_psr)
br.many b0
;;
vmx_asm_mov_to_psr_back:
- ld8 r17=[r27]
- add r22=IA64_VCPU_MODE_FLAGS_OFFSET,r21
- dep r19=0,r19,32,32
+ ld8 r17=[r27] // vpsr
+ add r22=IA64_VCPU_MMU_MODE_OFFSET,r21
+ dep r19=0,r19,32,32 // Clear bits 32-63
;;
- ld4 r23=[r22]
+ ld1 r23=[r22] // mmu_mode
dep r18=0,r17,0,32
;;
- add r30=r18,r19
+ or r30=r18,r19
movl r28=IA64_PSR_DT+IA64_PSR_RT+IA64_PSR_IT
;;
- st8 [r27]=r30
+ st8 [r27]=r30 // set vpsr
and r27=r28,r30
and r29=r28,r17
;;
- cmp.eq p5,p0=r29,r27
- cmp.eq p6,p7=r28,r27
- (p5) br.many vmx_asm_mov_to_psr_1
+ cmp.eq p5,p0=r29,r27 // (old_vpsr & (dt+rt+it)) == (new_vpsr & (dt+rt+it))
+ cmp.eq p6,p7=r28,r27 // (new_vpsr & (dt+rt+it)) == (dt+rt+it)
+ (p5) br.many vmx_asm_mov_to_psr_1 // no change
;;
//virtual to physical
(p7) add r26=IA64_VCPU_META_RID_DT_OFFSET,r21
(p7) add r27=IA64_VCPU_META_RID_DT_OFFSET,r21
- (p7) dep r23=-1,r23,GUEST_IN_PHY_BIT,1
+ (p7) mov r23=VMX_MMU_PHY_DT
;;
//physical to virtual
(p6) add r26=IA64_VCPU_META_SAVED_RR0_OFFSET,r21
(p6) add r27=IA64_VCPU_META_SAVED_RR0_OFFSET+8,r21
- (p6) dep r23=0,r23,GUEST_IN_PHY_BIT,1
+ (p6) mov r23=VMX_MMU_VIRTUAL
;;
ld8 r26=[r26]
ld8 r27=[r27]
- st4 [r22]=r23
+ st1 [r22]=r23
dep.z r28=4,61,3
;;
mov rr[r0]=r26
@@ -443,10 +443,10 @@ vmx_asm_thash_back1:
vmx_asm_thash_back1:
shr.u r23=r19,61 // get RR number
adds r25=VCPU_VRR0_OFS,r21 // get vcpu->arch.arch_vmx.vrr[0]'s addr
- adds r16=IA64_VPD_VPTA_OFFSET,r16 // get vpta
+ adds r16=IA64_VPD_VPTA_OFFSET,r16 // get virtual pta
;;
shladd r27=r23,3,r25 // get vcpu->arch.arch_vmx.vrr[r23]'s addr
- ld8 r17=[r16] // get PTA
+ ld8 r17=[r16] // get virtual PTA
mov r26=1
;;
extr.u r29=r17,2,6 // get pta.size
diff -r 83239b289072 -r 5c56ce7b9892 xen/arch/ia64/vmx/vmx_fault.c
--- a/xen/arch/ia64/vmx/vmx_fault.c Thu Sep 27 16:29:43 2007 -0600
+++ b/xen/arch/ia64/vmx/vmx_fault.c Mon Oct 01 09:52:14 2007 -0600
@@ -335,7 +335,7 @@ vmx_hpw_miss(u64 vadr, u64 vec, REGS* re
panic_domain(regs, "wrong vec:%lx\n", vec);
/* Physical mode and region is 0 or 4. */
- if (is_physical_mode(v) && (!((vadr<<1)>>62))) {
+ if (!is_virtual_mode(v) && (!((vadr << 1) >> 62))) {
if (vec == 2) {
/* DTLB miss. */
if (misr.sp) /* Refer to SDM Vol2 Table 4-11,4-12 */
@@ -351,7 +351,10 @@ vmx_hpw_miss(u64 vadr, u64 vec, REGS* re
}
try_again:
- if ((data=vtlb_lookup(v, vadr,type)) != 0) {
+ /* Search in VTLB. */
+ data = vtlb_lookup(v, vadr, type);
+ if (data != 0) {
+ /* Found. */
if (v->domain != dom0 && type == DSIDE_TLB) {
if (misr.sp) { /* Refer to SDM Vol2 Table 4-10,4-12 */
if ((data->ma == VA_MATTR_UC) || (data->ma == VA_MATTR_UCE))
@@ -373,8 +376,10 @@ try_again:
}
}
thash_vhpt_insert(v, data->page_flags, data->itir, vadr, type);
-
- } else if (type == DSIDE_TLB) {
+ return IA64_NO_FAULT;
+ }
+
+ if (type == DSIDE_TLB) {
struct opt_feature* optf = &(v->domain->arch.opt_feature);
if (misr.sp)
@@ -385,7 +390,7 @@ try_again:
if (!vhpt_enabled(v, vadr, misr.rs ? RSE_REF : DATA_REF)) {
/* windows use region 4 and 5 for identity mapping */
- if (optf->mask & XEN_IA64_OPTF_IDENT_MAP_REG4 &&
+ if ((optf->mask & XEN_IA64_OPTF_IDENT_MAP_REG4) &&
REGION_NUMBER(vadr) == 4 && !(regs->cr_ipsr & IA64_PSR_CPL) &&
REGION_OFFSET(vadr) <= _PAGE_PPN_MASK) {
@@ -395,7 +400,7 @@ try_again:
goto try_again;
return IA64_NO_FAULT;
}
- if (optf->mask & XEN_IA64_OPTF_IDENT_MAP_REG5 &&
+ if ((optf->mask & XEN_IA64_OPTF_IDENT_MAP_REG5) &&
REGION_NUMBER(vadr) == 5 && !(regs->cr_ipsr & IA64_PSR_CPL) &&
REGION_OFFSET(vadr) <= _PAGE_PPN_MASK) {
diff -r 83239b289072 -r 5c56ce7b9892 xen/arch/ia64/vmx/vmx_phy_mode.c
--- a/xen/arch/ia64/vmx/vmx_phy_mode.c Thu Sep 27 16:29:43 2007 -0600
+++ b/xen/arch/ia64/vmx/vmx_phy_mode.c Mon Oct 01 09:52:14 2007 -0600
@@ -25,7 +25,6 @@
#include <asm/processor.h>
#include <asm/gcc_intrin.h>
#include <asm/vmx_phy_mode.h>
-#include <xen/sched.h>
#include <asm/pgtable.h>
#include <asm/vmmu.h>
#include <asm/debugger.h>
@@ -44,11 +43,10 @@
* Special notes:
* - Index by it/dt/rt sequence
* - Only existing mode transitions are allowed in this table
- * - RSE is placed at lazy mode when emulating guest partial mode
* - If gva happens to be rr0 and rr4, only allowed case is identity
* mapping (gva=gpa), or panic! (How?)
*/
-static const int mm_switch_table[8][8] = {
+static const unsigned char mm_switch_table[8][8] = {
/* 2004/09/12(Kevin): Allow switch to self */
/*
* (it,dt,rt): (0,0,0) -> (1,1,1)
@@ -94,41 +92,36 @@ static const int mm_switch_table[8][8] =
* (see "arch/ia64/kernel/head.S")
* (1,1,1)->(1,0,0)
*/
-
{SW_V2P_DT, 0, 0, 0, SW_V2P_D, SW_V2P_D, 0, SW_SELF},
};
void
physical_mode_init(VCPU *vcpu)
{
- vcpu->arch.mode_flags = GUEST_IN_PHY;
+ vcpu->arch.arch_vmx.mmu_mode = VMX_MMU_PHY_DT;
}
void
physical_tlb_miss(VCPU *vcpu, u64 vadr, int type)
{
u64 pte;
- ia64_rr rr;
- rr.rrval = ia64_get_rr(vadr);
- pte = vadr & _PAGE_PPN_MASK;
- pte = pte | PHY_PAGE_WB;
- thash_vhpt_insert(vcpu, pte, (rr.ps << 2), vadr, type);
- return;
+
+ pte = (vadr & _PAGE_PPN_MASK) | PHY_PAGE_WB;
+ thash_vhpt_insert(vcpu, pte, (PAGE_SHIFT << 2), vadr, type);
}
void
vmx_init_all_rr(VCPU *vcpu)
{
- VMX(vcpu, vrr[VRN0]) = 0x38;
// enable vhpt in guest physical mode
vcpu->arch.metaphysical_rid_dt |= 1;
+
+ VMX(vcpu, vrr[VRN0]) = 0x38;
vcpu->arch.metaphysical_saved_rr0 = vrrtomrr(vcpu, 0x38);
VMX(vcpu, vrr[VRN1]) = 0x38;
VMX(vcpu, vrr[VRN2]) = 0x38;
VMX(vcpu, vrr[VRN3]) = 0x38;
VMX(vcpu, vrr[VRN4]) = 0x38;
- // enable vhpt in guest physical mode
- vcpu->arch.metaphysical_rid_d |= 0; /* VHPT not enabled! */
vcpu->arch.metaphysical_saved_rr4 = vrrtomrr(vcpu, 0x38);
VMX(vcpu, vrr[VRN5]) = 0x38;
VMX(vcpu, vrr[VRN6]) = 0x38;
@@ -141,31 +134,31 @@ vmx_load_all_rr(VCPU *vcpu)
vmx_load_all_rr(VCPU *vcpu)
{
unsigned long psr;
-
- local_irq_save(psr);
-
- /* WARNING: not allow co-exist of both virtual mode and physical
- * mode in same region
- */
- if (is_physical_mode(vcpu)) {
- if (vcpu->arch.mode_flags & GUEST_PHY_EMUL){
- panic_domain(vcpu_regs(vcpu),
- "Unexpected domain switch in phy emul\n");
- }
- ia64_set_rr((VRN0 << VRN_SHIFT),
vcpu->arch.metaphysical_rid_dt);
- ia64_dv_serialize_data();
- ia64_set_rr((VRN4 << VRN_SHIFT),
vcpu->arch.metaphysical_rid_dt);
- ia64_dv_serialize_data();
- } else {
- ia64_set_rr((VRN0 << VRN_SHIFT),
- vcpu->arch.metaphysical_saved_rr0);
- ia64_dv_serialize_data();
- ia64_set_rr((VRN4 << VRN_SHIFT),
- vcpu->arch.metaphysical_saved_rr4);
- ia64_dv_serialize_data();
+ unsigned long rr0, rr4;
+
+ switch (vcpu->arch.arch_vmx.mmu_mode) {
+ case VMX_MMU_VIRTUAL:
+ rr0 = vcpu->arch.metaphysical_saved_rr0;
+ rr4 = vcpu->arch.metaphysical_saved_rr4;
+ break;
+ case VMX_MMU_PHY_DT:
+ rr0 = vcpu->arch.metaphysical_rid_dt;
+ rr4 = vcpu->arch.metaphysical_rid_dt;
+ break;
+ case VMX_MMU_PHY_D:
+ rr0 = vcpu->arch.metaphysical_rid_d;
+ rr4 = vcpu->arch.metaphysical_rid_d;
+ break;
+ default:
+ panic_domain(NULL, "bad mmu mode value");
}
- /* rr567 will be postponed to last point when resuming back to guest */
+ psr = ia64_clear_ic();
+
+ ia64_set_rr((VRN0 << VRN_SHIFT), rr0);
+ ia64_dv_serialize_data();
+ ia64_set_rr((VRN4 << VRN_SHIFT), rr4);
+ ia64_dv_serialize_data();
ia64_set_rr((VRN1 << VRN_SHIFT), vrrtomrr(vcpu, VMX(vcpu, vrr[VRN1])));
ia64_dv_serialize_data();
ia64_set_rr((VRN2 << VRN_SHIFT), vrrtomrr(vcpu, VMX(vcpu, vrr[VRN2])));
@@ -190,13 +183,25 @@ switch_to_physical_rid(VCPU *vcpu)
switch_to_physical_rid(VCPU *vcpu)
{
u64 psr;
-
+ u64 rr;
+
+ switch (vcpu->arch.arch_vmx.mmu_mode) {
+ case VMX_MMU_PHY_DT:
+ rr = vcpu->arch.metaphysical_rid_dt;
+ break;
+ case VMX_MMU_PHY_D:
+ rr = vcpu->arch.metaphysical_rid_d;
+ break;
+ default:
+ panic_domain(NULL, "bad mmu mode value");
+ }
+
psr = ia64_clear_ic();
- ia64_set_rr(VRN0 << VRN_SHIFT, vcpu->arch.metaphysical_rid_dt);
+ ia64_set_rr(VRN0<<VRN_SHIFT, rr);
+ ia64_dv_serialize_data();
+ ia64_set_rr(VRN4<<VRN_SHIFT, rr);
ia64_srlz_d();
- ia64_set_rr(VRN4 << VRN_SHIFT, vcpu->arch.metaphysical_rid_dt);
- ia64_srlz_d();
-
+
ia64_set_psr(psr);
ia64_srlz_i();
return;
@@ -206,9 +211,10 @@ switch_to_virtual_rid(VCPU *vcpu)
switch_to_virtual_rid(VCPU *vcpu)
{
u64 psr;
- psr=ia64_clear_ic();
+
+ psr = ia64_clear_ic();
ia64_set_rr(VRN0<<VRN_SHIFT, vcpu->arch.metaphysical_saved_rr0);
- ia64_srlz_d();
+ ia64_dv_serialize_data();
ia64_set_rr(VRN4<<VRN_SHIFT, vcpu->arch.metaphysical_saved_rr4);
ia64_srlz_d();
ia64_set_psr(psr);
@@ -232,22 +238,14 @@ switch_mm_mode(VCPU *vcpu, IA64_PSR old_
case SW_V2P_D:
// printk("V -> P mode transition: (0x%lx -> 0x%lx)\n",
// old_psr.val, new_psr.val);
+ vcpu->arch.arch_vmx.mmu_mode = VMX_MMU_PHY_DT;
switch_to_physical_rid(vcpu);
- /*
- * Set rse to enforced lazy, to prevent active rse save/restor when
- * guest physical mode.
- */
- vcpu->arch.mode_flags |= GUEST_IN_PHY;
break;
case SW_P2V:
// printk("P -> V mode transition: (0x%lx -> 0x%lx)\n",
// old_psr.val, new_psr.val);
+ vcpu->arch.arch_vmx.mmu_mode = VMX_MMU_VIRTUAL;
switch_to_virtual_rid(vcpu);
- /*
- * recover old mode which is saved when entering
- * guest physical mode
- */
- vcpu->arch.mode_flags &= ~GUEST_IN_PHY;
break;
case SW_SELF:
printk("Switch to self-0x%lx!!! MM mode doesn't change...\n",
@@ -259,7 +257,9 @@ switch_mm_mode(VCPU *vcpu, IA64_PSR old_
break;
default:
/* Sanity check */
- panic_domain(vcpu_regs(vcpu),"Unexpected virtual <--> physical mode
transition,old:%lx,new:%lx\n",old_psr.val,new_psr.val);
+ panic_domain(vcpu_regs(vcpu),
+ "Unexpected virtual <--> physical mode transition, "
+ "old:%lx, new:%lx\n", old_psr.val, new_psr.val);
break;
}
return;
@@ -268,16 +268,12 @@ void
void
check_mm_mode_switch (VCPU *vcpu, IA64_PSR old_psr, IA64_PSR new_psr)
{
-
if (old_psr.dt != new_psr.dt ||
old_psr.it != new_psr.it ||
old_psr.rt != new_psr.rt) {
-
switch_mm_mode(vcpu, old_psr, new_psr);
debugger_event(XEN_IA64_DEBUG_ON_MMU);
}
-
- return;
}
@@ -300,10 +296,8 @@ void
void
prepare_if_physical_mode(VCPU *vcpu)
{
- if (is_physical_mode(vcpu)) {
- vcpu->arch.mode_flags |= GUEST_PHY_EMUL;
+ if (!is_virtual_mode(vcpu))
switch_to_virtual_rid(vcpu);
- }
return;
}
@@ -311,9 +305,8 @@ void
void
recover_if_physical_mode(VCPU *vcpu)
{
- if (is_physical_mode(vcpu))
+ if (!is_virtual_mode(vcpu))
switch_to_physical_rid(vcpu);
- vcpu->arch.mode_flags &= ~GUEST_PHY_EMUL;
- return;
-}
-
+ return;
+}
+
diff -r 83239b289072 -r 5c56ce7b9892 xen/arch/ia64/vmx/vmx_vcpu.c
--- a/xen/arch/ia64/vmx/vmx_vcpu.c Thu Sep 27 16:29:43 2007 -0600
+++ b/xen/arch/ia64/vmx/vmx_vcpu.c Mon Oct 01 09:52:14 2007 -0600
@@ -178,13 +178,13 @@ IA64FAULT vmx_vcpu_set_rr(VCPU *vcpu, u6
case VRN4:
rrval = vrrtomrr(vcpu,val);
vcpu->arch.metaphysical_saved_rr4 = rrval;
- if (!is_physical_mode(vcpu))
+ if (is_virtual_mode(vcpu))
ia64_set_rr(reg,rrval);
break;
case VRN0:
rrval = vrrtomrr(vcpu,val);
vcpu->arch.metaphysical_saved_rr0 = rrval;
- if (!is_physical_mode(vcpu))
+ if (is_virtual_mode(vcpu))
ia64_set_rr(reg,rrval);
break;
default:
diff -r 83239b289072 -r 5c56ce7b9892 xen/include/asm-ia64/domain.h
--- a/xen/include/asm-ia64/domain.h Thu Sep 27 16:29:43 2007 -0600
+++ b/xen/include/asm-ia64/domain.h Mon Oct 01 09:52:14 2007 -0600
@@ -254,8 +254,6 @@ struct arch_vcpu {
char irq_new_condition; // vpsr.i/vtpr change, check for pending VHPI
char hypercall_continuation;
- // for physical emulation
- int mode_flags;
fpswa_ret_t fpswa_ret; /* save return values of FPSWA emulation */
struct timer hlt_timer;
struct arch_vmx_struct arch_vmx; /* Virtual Machine Extensions */
diff -r 83239b289072 -r 5c56ce7b9892 xen/include/asm-ia64/vmx_phy_mode.h
--- a/xen/include/asm-ia64/vmx_phy_mode.h Thu Sep 27 16:29:43 2007 -0600
+++ b/xen/include/asm-ia64/vmx_phy_mode.h Mon Oct 01 09:52:14 2007 -0600
@@ -85,22 +85,13 @@ extern void vmx_init_all_rr(VCPU *vcpu);
extern void vmx_init_all_rr(VCPU *vcpu);
extern void vmx_load_all_rr(VCPU *vcpu);
extern void physical_tlb_miss(VCPU *vcpu, u64 vadr, int type);
-/*
- * No sanity check here, since all psr changes have been
- * checked in switch_mm_mode().
- */
-#define is_physical_mode(v) \
- ((v->arch.mode_flags) & GUEST_IN_PHY)
-#define is_virtual_mode(v) \
- (!is_physical_mode(v))
+#define is_virtual_mode(v) ((v)->arch.arch_vmx.mmu_mode == VMX_MMU_VIRTUAL)
#endif /* __ASSEMBLY__ */
-#define GUEST_IN_PHY_BIT 0
-#define GUEST_PHY_EMUL_BIT 1
-
-#define GUEST_IN_PHY (1 << GUEST_IN_PHY_BIT)
-#define GUEST_PHY_EMUL (1 << GUEST_PHY_EMUL_BIT)
+#define VMX_MMU_VIRTUAL 0 /* Full virtual mode: it=dt=1 */
+#define VMX_MMU_PHY_D 1 /* Half physical: it=1,dt=0 */
+#define VMX_MMU_PHY_DT 3 /* Full physical mode: it=0,dt=0 */
#endif /* _PHY_MODE_H_ */
diff -r 83239b289072 -r 5c56ce7b9892 xen/include/asm-ia64/vmx_vpd.h
--- a/xen/include/asm-ia64/vmx_vpd.h Thu Sep 27 16:29:43 2007 -0600
+++ b/xen/include/asm-ia64/vmx_vpd.h Mon Oct 01 09:52:14 2007 -0600
@@ -32,38 +32,6 @@
#define VPD_SHIFT 16
#define VPD_SIZE (1 << VPD_SHIFT)
-typedef struct {
- unsigned long dcr; // CR0
- unsigned long itm;
- unsigned long iva;
- unsigned long rsv1[5];
- unsigned long pta; // CR8
- unsigned long rsv2[7];
- unsigned long ipsr; // CR16
- unsigned long isr;
- unsigned long rsv3;
- unsigned long iip;
- unsigned long ifa;
- unsigned long itir;
- unsigned long iipa;
- unsigned long ifs;
- unsigned long iim; // CR24
- unsigned long iha;
- unsigned long rsv4[38];
- unsigned long lid; // CR64
- unsigned long ivr;
- unsigned long tpr;
- unsigned long eoi;
- unsigned long irr[4];
- unsigned long itv; // CR72
- unsigned long pmv;
- unsigned long cmcv;
- unsigned long rsv5[5];
- unsigned long lrr0; // CR80
- unsigned long lrr1;
- unsigned long rsv6[46];
-} cr_t;
-
#ifdef VTI_DEBUG
struct ivt_debug{
unsigned long iip;
@@ -91,6 +59,7 @@ struct arch_vmx_struct {
unsigned long xen_port;
unsigned char xtp;
unsigned char pal_init_pending;
+ unsigned char mmu_mode; /* Current mmu mode. See vmx_phy_mode.h */
#ifdef VTI_DEBUG
unsigned long ivt_current;
struct ivt_debug ivt_debug[IVT_DEBUG_MAX];
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