From: Jack Lange <jarusl@cs.northwestern.edu>
Date: Tue, 26 Jan 2010 06:50:35 +0000 (-0600)
Subject: added back in 32 bit support
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=commitdiff_plain;h=571979dad8fc2138a7e11c4fe61e812a0a0b17d1

added back in 32 bit support
---

diff --git a/palacios/include/palacios/vmm_lowlevel.h b/palacios/include/palacios/vmm_lowlevel.h
index 331a307..af1f820 100644
--- a/palacios/include/palacios/vmm_lowlevel.h
+++ b/palacios/include/palacios/vmm_lowlevel.h
@@ -69,11 +69,24 @@ struct sys_segment64 {
 static void __inline__ v3_cpuid(uint32_t target, 
 				uint32_t * eax, uint32_t * ebx, 
 				uint32_t * ecx, uint32_t * edx) {
+#ifdef __V3_64BIT__
     __asm__ __volatile__ (
 			  "cpuid\n\t"
 			  : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx)
 			  : "0" (target), "2" (*ecx)
 			  );
+#elif __V3_32BIT__
+    // 32 bit code compiled with -fPIC, cannot use ebx as an ouput reg. Fantastic.
+    __asm__ __volatile__ (
+			  "pushl %%ebx\n\t"
+			  "movl %%edi, %%ebx\n\t"
+			  "cpuid\n\t"
+			  "movl %%ebx, %%edi\n\t"
+			  "popl %%ebx\n\t"
+			  : "=a" (*eax), "=D" (*ebx), "=c" (*ecx), "=d" (*edx)
+			  : "0" (target), "2" (*ecx)
+			  );
+#endif
     return;
 }
 
diff --git a/palacios/src/devices/lnx_virtio_balloon.c b/palacios/src/devices/lnx_virtio_balloon.c
index 088cea4..3350e26 100644
--- a/palacios/src/devices/lnx_virtio_balloon.c
+++ b/palacios/src/devices/lnx_virtio_balloon.c
@@ -142,8 +142,9 @@ static int handle_kick(struct vm_device * dev) {
 	    addr_t page_addr;
 	    tmp_desc = &(q->desc[desc_idx]);
 	    
-	    PrintDebug("Header Descriptor (ptr=%p) gpa=%p, len=%d, flags=%x, next=%d\n", tmp_desc, 
-		       (void *)(tmp_desc->addr_gpa), tmp_desc->length, 
+	    PrintDebug("Header Descriptor (ptr=%p) gpa=%p, len=%d, flags=%x, next=%d\n", 
+		       tmp_desc, 
+		       (void *)(addr_t)(tmp_desc->addr_gpa), tmp_desc->length, 
 		       tmp_desc->flags, tmp_desc->next);
 	
 
diff --git a/palacios/src/devices/lnx_virtio_sym.c b/palacios/src/devices/lnx_virtio_sym.c
index 852709e..2cd3745 100644
--- a/palacios/src/devices/lnx_virtio_sym.c
+++ b/palacios/src/devices/lnx_virtio_sym.c
@@ -115,8 +115,9 @@ static int handle_kick(struct vm_device * dev) {
 	    addr_t page_addr;
 	    tmp_desc = &(q->desc[desc_idx]);
 	    
-	    PrintDebug("Header Descriptor (ptr=%p) gpa=%p, len=%d, flags=%x, next=%d\n", tmp_desc, 
-		       (void *)(tmp_desc->addr_gpa), tmp_desc->length, 
+	    PrintDebug("Header Descriptor (ptr=%p) gpa=%p, len=%d, flags=%x, next=%d\n", 
+		       tmp_desc, 
+		       (void *)(addr_t)(tmp_desc->addr_gpa), tmp_desc->length, 
 		       tmp_desc->flags, tmp_desc->next);
 	
 
diff --git a/palacios/src/devices/sym_swap2.c b/palacios/src/devices/sym_swap2.c
index 3946636..f67ca85 100644
--- a/palacios/src/devices/sym_swap2.c
+++ b/palacios/src/devices/sym_swap2.c
@@ -571,7 +571,7 @@ static int connect_fn(struct guest_info * info,
 	swap->active = 0;
 
 	swap->cache_base_addr = (addr_t)V3_AllocPages(swap->cache_size / 4096);
-	swap->cache = (uint8_t *)V3_VAddr((void *)(swap->cache_base_addr));
+	swap->cache = (uint8_t *)V3_VAddr((void *)(addr_t)(swap->cache_base_addr));
 	memset(swap->cache, 0, swap->cache_size);
     }
 
diff --git a/palacios/src/palacios/vm_guest.c b/palacios/src/palacios/vm_guest.c
index de0cb21..c2bb07d 100644
--- a/palacios/src/palacios/vm_guest.c
+++ b/palacios/src/palacios/vm_guest.c
@@ -310,7 +310,7 @@ void v3_print_stack(struct guest_info * info) {
     // We start i at one because the current stack pointer points to an unused stack element
     for (i = 0; i <= 24; i++) {
 	if (cpu_mode == LONG) {
-	    V3_Print("\t%p\n", (void *)*(uint64_t *)(host_addr + (i * 8)));
+	    V3_Print("\t%p\n", (void *)*(addr_t *)(host_addr + (i * 8)));
 	} else if (cpu_mode == REAL) {
 	    V3_Print("Don't currently handle 16 bit stacks... \n");
 	} else {
diff --git a/palacios/src/palacios/vmm_sym_iface.c b/palacios/src/palacios/vmm_sym_iface.c
index 8395955..fea864d 100644
--- a/palacios/src/palacios/vmm_sym_iface.c
+++ b/palacios/src/palacios/vmm_sym_iface.c
@@ -84,14 +84,14 @@ static int msr_write(uint_t msr, struct v3_msr src, void * priv_data) {
     struct v3_sym_state * state = &(info->sym_state);
 
     if (msr == SYM_PAGE_MSR) {
-	PrintDebug("Symbiotic MSR write for page %p\n", (void *)src.value);
+	PrintDebug("Symbiotic MSR write for page %p\n", (void *)(addr_t)src.value);
 
 	if (state->active == 1) {
 	    // unmap page
 	    struct v3_shadow_region * old_reg = v3_get_shadow_region(info, (addr_t)state->guest_pg_addr);
 
 	    if (old_reg == NULL) {
-		PrintError("Could not find previously active symbiotic page (%p)\n", (void *)state->guest_pg_addr);
+		PrintError("Could not find previously active symbiotic page (%p)\n", (void *)(addr_t)state->guest_pg_addr);
 		return -1;
 	    }