[PATCH V3 15/19] Rename maddr_to_virt() calls

[Elias El Yandouzi <eliasely@amazon.com>]

Until directmap gets completely removed, we'd still need to
keep some calls to mmaddr_to_virt() for xenheap pages or when the
directmap is enabled.

Rename the macro to maddr_to_directmap_virt() to flag them and
prevent further use of maddr_to_virt().

Signed-off-by: Elias El Yandouzi <eliasely@amazon.com>

diff --git a/xen/arch/x86/dmi_scan.c b/xen/arch/x86/dmi_scan.c
index 81f80c053a..ac016f3a04 100644
--- a/xen/arch/x86/dmi_scan.c
+++ b/xen/arch/x86/dmi_scan.c
@@ -277,7 +277,7 @@ const char *__init dmi_get_table(paddr_t *base, u32 *len)
 			return "SMBIOS";
 		}
 	} else {
-		char __iomem *p = maddr_to_virt(0xF0000), *q;
+		char __iomem *p = maddr_to_directmap_virt(0xF0000), *q;
 		union {
 			struct dmi_eps dmi;
 			struct smbios3_eps smbios3;
@@ -364,7 +364,7 @@ static int __init dmi_iterate(void (*decode)(const struct dmi_header *))
 	dmi.size = 0;
 	smbios3.length = 0;
 
-	p = maddr_to_virt(0xF0000);
+	p = maddr_to_directmap_virt(0xF0000);
 	for (q = p; q < p + 0x10000; q += 16) {
 		if (!dmi.size) {
 			memcpy_fromio(&dmi, q, sizeof(dmi));
diff --git a/xen/arch/x86/include/asm/mach-default/bios_ebda.h b/xen/arch/x86/include/asm/mach-default/bios_ebda.h
index 42de6b2a5b..8cfe53d1f2 100644
--- a/xen/arch/x86/include/asm/mach-default/bios_ebda.h
+++ b/xen/arch/x86/include/asm/mach-default/bios_ebda.h
@@ -7,7 +7,7 @@
  */
 static inline unsigned int get_bios_ebda(void)
 {
-	unsigned int address = *(unsigned short *)maddr_to_virt(0x40E);
+	unsigned int address = *(unsigned short *)maddr_to_directmap_virt(0x40E);
 	address <<= 4;
 	return address;	/* 0 means none */
 }
diff --git a/xen/arch/x86/include/asm/page.h b/xen/arch/x86/include/asm/page.h
index c6891b52d4..bf7bf08ba4 100644
--- a/xen/arch/x86/include/asm/page.h
+++ b/xen/arch/x86/include/asm/page.h
@@ -240,11 +240,11 @@ void copy_page_sse2(void *to, const void *from);
 
 /* Convert between Xen-heap virtual addresses and machine addresses. */
 #define __pa(x)             (virt_to_maddr(x))
-#define __va(x)             (maddr_to_virt(x))
+#define __va(x)             (maddr_to_directmap_virt(x))
 
 /* Convert between Xen-heap virtual addresses and machine frame numbers. */
 #define __virt_to_mfn(va)   (virt_to_maddr(va) >> PAGE_SHIFT)
-#define __mfn_to_virt(mfn)  (maddr_to_virt((paddr_t)(mfn) << PAGE_SHIFT))
+#define __mfn_to_virt(mfn)  (maddr_to_directmap_virt((paddr_t)(mfn) << PAGE_SHIFT))
 
 /* Convert between machine frame numbers and page-info structures. */
 #define mfn_to_page(mfn)    (frame_table + mfn_to_pdx(mfn))
@@ -270,7 +270,7 @@ void copy_page_sse2(void *to, const void *from);
 #define virt_to_mfn(va)     __virt_to_mfn(va)
 #define mfn_to_directmap_virt(mfn)    __mfn_to_virt(mfn)
 #define virt_to_maddr(va)   __virt_to_maddr((unsigned long)(va))
-#define maddr_to_virt(ma)   __maddr_to_virt((unsigned long)(ma))
+#define maddr_to_directmap_virt(ma)   __maddr_to_directmap_virt((unsigned long)(ma))
 #define maddr_to_page(ma)   __maddr_to_page(ma)
 #define page_to_maddr(pg)   __page_to_maddr(pg)
 #define virt_to_page(va)    __virt_to_page(va)
diff --git a/xen/arch/x86/include/asm/x86_64/page.h b/xen/arch/x86/include/asm/x86_64/page.h
index 19ca64d792..a95ebc088f 100644
--- a/xen/arch/x86/include/asm/x86_64/page.h
+++ b/xen/arch/x86/include/asm/x86_64/page.h
@@ -48,7 +48,7 @@ static inline unsigned long __virt_to_maddr(unsigned long va)
     return xen_phys_start + va - XEN_VIRT_START;
 }
 
-static inline void *__maddr_to_virt(unsigned long ma)
+static inline void *__maddr_to_directmap_virt(unsigned long ma)
 {
     /* Offset in the direct map, accounting for pdx compression */
     unsigned long va_offset = maddr_to_directmapoff(ma);
diff --git a/xen/arch/x86/mpparse.c b/xen/arch/x86/mpparse.c
index d8ccab2449..69181b0abe 100644
--- a/xen/arch/x86/mpparse.c
+++ b/xen/arch/x86/mpparse.c
@@ -664,7 +664,7 @@ void __init get_smp_config (void)
 
 static int __init smp_scan_config (unsigned long base, unsigned long length)
 {
-	unsigned int *bp = maddr_to_virt(base);
+	unsigned int *bp = maddr_to_directmap_virt(base);
 	struct intel_mp_floating *mpf;
 
 	Dprintk("Scan SMP from %p for %ld bytes.\n", bp,length);
diff --git a/xen/common/efi/boot.c b/xen/common/efi/boot.c
index 39aed5845d..1b02e2b6d5 100644
--- a/xen/common/efi/boot.c
+++ b/xen/common/efi/boot.c
@@ -1764,7 +1764,7 @@ void __init efi_init_memory(void)
                 if ( map_pages_to_xen((unsigned long)mfn_to_directmap_virt(smfn),
                                     _mfn(smfn), emfn - smfn, prot) == 0 )
                     desc->VirtualStart =
-                        (unsigned long)maddr_to_virt(desc->PhysicalStart);
+                        (unsigned long)maddr_to_directmap_virt(desc->PhysicalStart);
                 else
                     printk(XENLOG_ERR "Could not map MFNs %#lx-%#lx\n",
                         smfn, emfn - 1);
-- 
2.40.1