# HG changeset patch
# User dietmar.hahn@xxxxxxxxxxxxxxxxxxx
# Node ID 3bb17207e1417548827073805b8d756f3829a1a3
# Parent  315c348e5f9e2f929032dae3fec3e2583ca91785
First step to support big-endian PV domU's.

Signed-off-by: Dietmar Hahn <dietmar.hahn@xxxxxxxxxxxxxxxxxxx>

diff -r 315c348e5f9e -r 3bb17207e141 xen/arch/ia64/xen/faults.c
--- a/xen/arch/ia64/xen/faults.c	Tue Feb 20 15:43:57 2007 -0700
+++ b/xen/arch/ia64/xen/faults.c	Wed Feb 21 11:59:17 2007 +0100
@@ -91,6 +91,10 @@ void reflect_interruption(unsigned long 
 
 	regs->cr_iip = ((unsigned long)PSCBX(v, iva) + vector) & ~0xffUL;
 	regs->cr_ipsr = (regs->cr_ipsr & ~DELIVER_PSR_CLR) | DELIVER_PSR_SET;
+#if defined(SUPPORT_PV_BE_DOMU)
+	if(PSCB(v, dcr) & IA64_DCR_BE)
+		regs->cr_ipsr |= IA64_PSR_BE;
+#endif
 
 	if (PSCB(v, hpsr_dfh))
 		regs->cr_ipsr |= IA64_PSR_DFH;  
@@ -154,6 +158,10 @@ void reflect_event(void)
 
 	regs->cr_iip = v->arch.event_callback_ip;
 	regs->cr_ipsr = (regs->cr_ipsr & ~DELIVER_PSR_CLR) | DELIVER_PSR_SET;
+#if defined(SUPPORT_PV_BE_DOMU)
+	if(PSCB(v, dcr) & IA64_DCR_BE)
+		regs->cr_ipsr |= IA64_PSR_BE;
+#endif
 
 	if (PSCB(v, hpsr_dfh))
 		regs->cr_ipsr |= IA64_PSR_DFH;
diff -r 315c348e5f9e -r 3bb17207e141 xen/arch/ia64/xen/vcpu.c
--- a/xen/arch/ia64/xen/vcpu.c	Tue Feb 20 15:43:57 2007 -0700
+++ b/xen/arch/ia64/xen/vcpu.c	Wed Feb 21 11:59:17 2007 +0100
@@ -326,7 +326,11 @@ IA64FAULT vcpu_set_psr_sm(VCPU * vcpu, u
 	// just handle psr.sp,pp and psr.i,ic (and user mask) for now
 	mask =
 	    IA64_PSR_PP | IA64_PSR_SP | IA64_PSR_I | IA64_PSR_IC | IA64_PSR_UM |
+#if defined(SUPPORT_PV_BE_DOMU)
+	    IA64_PSR_DT | IA64_PSR_DFL | IA64_PSR_DFH | IA64_PSR_BE;
+#else
 	    IA64_PSR_DT | IA64_PSR_DFL | IA64_PSR_DFH;
+#endif
 	if (imm24 & ~mask)
 		return IA64_ILLOP_FAULT;
 	if (imm.dfh) {
@@ -371,8 +375,12 @@ IA64FAULT vcpu_set_psr_sm(VCPU * vcpu, u
 		psr.up = 1;
 	}
 	if (imm.be) {
+#if defined(SUPPORT_PV_BE_DOMU)
+		ipsr->be = 1;
+#else
 		printk("*** DOMAIN TRYING TO TURN ON BIG-ENDIAN!!!\n");
 		return IA64_ILLOP_FAULT;
+#endif
 	}
 	if (imm.dt)
 		vcpu_set_metaphysical_mode(vcpu, FALSE);
@@ -451,8 +459,12 @@ IA64FAULT vcpu_set_psr_l(VCPU * vcpu, u6
 	else
 		vcpu_set_metaphysical_mode(vcpu, TRUE);
 	if (newpsr.be) {
+#if defined(SUPPORT_PV_BE_DOMU)
+		ipsr->be = 1;
+#else
 		printk("*** DOMAIN TRYING TO TURN ON BIG-ENDIAN!!!\n");
 		return IA64_ILLOP_FAULT;
+#endif
 	}
 	if (enabling_interrupts &&
 	    vcpu_check_pending_interrupts(vcpu) != SPURIOUS_VECTOR)
@@ -506,9 +518,11 @@ u64 vcpu_get_ipsr_int_state(VCPU * vcpu,
 
 	//printk("*** vcpu_get_ipsr_int_state (0x%016lx)...\n",prevpsr);
 	psr.i64 = prevpsr;
+#if !defined(SUPPORT_PV_BE_DOMU)
 	psr.ia64_psr.be = 0;
 	if (dcr & IA64_DCR_BE)
 		psr.ia64_psr.be = 1;
+#endif
 	psr.ia64_psr.pp = 0;
 	if (dcr & IA64_DCR_PP)
 		psr.ia64_psr.pp = 1;
@@ -1376,10 +1390,12 @@ IA64FAULT vcpu_rfi(VCPU * vcpu)
 	psr.ia64_psr.it = 1;
 	psr.ia64_psr.bn = 1;
 	//psr.pk = 1;  // checking pkeys shouldn't be a problem but seems broken
+#if !defined(SUPPORT_PV_BE_DOMU)
 	if (psr.ia64_psr.be) {
 		printk("*** DOMAIN TRYING TO TURN ON BIG-ENDIAN!!!\n");
 		return IA64_ILLOP_FAULT;
 	}
+#endif
 
 	ifs = PSCB(vcpu, ifs);
 	if (ifs & 0x8000000000000000UL) 
diff -r 315c348e5f9e -r 3bb17207e141 xen/arch/ia64/xen/xensetup.c
--- a/xen/arch/ia64/xen/xensetup.c	Tue Feb 20 15:43:57 2007 -0700
+++ b/xen/arch/ia64/xen/xensetup.c	Wed Feb 21 11:59:17 2007 +0100
@@ -566,5 +566,9 @@ void arch_get_xen_caps(xen_capabilities_
         snprintf(s, sizeof(s), "hvm-%d.%d-ia64 ", major, minor);
         safe_strcat(*info, s);
     }
-}
-
+#if defined(SUPPORT_PV_BE_DOMU)
+    snprintf(s, sizeof(s), "xen-%d.%d-ia64be ", major, minor);
+    safe_strcat(*info, s);
+#endif
+}
+