Initial import of qemu-2.4.1HEADmaster

16 files changed, 351 insertions, 0 deletions

diff --git a/roms/ipxe/src/arch/i386/include/bits/byteswap.h b/roms/ipxe/src/arch/i386/include/bits/byteswap.h
new file mode 100644
index 00000000..0d9cb967
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/bits/byteswap.h
@@ -0,0 +1,70 @@
+#ifndef _BITS_BYTESWAP_H
+#define _BITS_BYTESWAP_H
+
+/** @file
+ *
+ * Byte-order swapping functions
+ *
+ */
+
+#include <stdint.h>
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+static inline __attribute__ (( always_inline, const )) uint16_t
+__bswap_variable_16 ( uint16_t x ) {
+	__asm__ ( "xchgb %b0,%h0" : "=q" ( x ) : "0" ( x ) );
+	return x;
+}
+
+static inline __attribute__ (( always_inline )) void
+__bswap_16s ( uint16_t *x ) {
+	__asm__ ( "rorw $8, %0" : "+m" ( *x ) );
+}
+
+static inline __attribute__ (( always_inline, const )) uint32_t
+__bswap_variable_32 ( uint32_t x ) {
+	__asm__ ( "bswapl %0" : "=r" ( x ) : "0" ( x ) );
+	return x;
+}
+
+static inline __attribute__ (( always_inline )) void
+__bswap_32s ( uint32_t *x ) {
+	__asm__ ( "bswapl %0" : "=r" ( *x ) : "0" ( *x ) );
+}
+
+static inline __attribute__ (( always_inline, const )) uint64_t
+__bswap_variable_64 ( uint64_t x ) {
+	uint32_t in_high = ( x >> 32 );
+	uint32_t in_low = ( x & 0xffffffffUL );
+	uint32_t out_high;
+	uint32_t out_low;
+
+	__asm__ ( "bswapl %0\n\t"
+		  "bswapl %1\n\t"
+		  "xchgl %0,%1\n\t"
+		  : "=r" ( out_high ), "=r" ( out_low )
+		  : "0" ( in_high ), "1" ( in_low ) );
+
+	return ( ( ( ( uint64_t ) out_high ) << 32 ) |
+		 ( ( uint64_t ) out_low ) );
+}
+
+static inline __attribute__ (( always_inline )) void
+__bswap_64s ( uint64_t *x ) {
+	struct {
+		uint32_t __attribute__ (( may_alias )) low;
+		uint32_t __attribute__ (( may_alias )) high;
+	} __attribute__ (( may_alias )) *dwords = ( ( void * ) x );
+	uint32_t discard;
+
+	__asm__ ( "movl %0,%2\n\t"
+		  "bswapl %2\n\t"
+		  "xchgl %2,%1\n\t"
+		  "bswapl %2\n\t"
+		  "movl %2,%0\n\t"
+		  : "+m" ( dwords->low ), "+m" ( dwords->high ),
+		    "=r" ( discard ) );
+}
+
+#endif /* _BITS_BYTESWAP_H */
diff --git a/roms/ipxe/src/arch/i386/include/bits/compiler.h b/roms/ipxe/src/arch/i386/include/bits/compiler.h
new file mode 100644
index 00000000..d48b4b38
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/bits/compiler.h
@@ -0,0 +1,38 @@
+#ifndef _BITS_COMPILER_H
+#define _BITS_COMPILER_H
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#ifndef ASSEMBLY
+
+/** Declare a function with standard calling conventions */
+#define __asmcall __attribute__ (( cdecl, regparm(0) ))
+
+/**
+ * Declare a function with libgcc implicit linkage
+ *
+ * It seems as though gcc expects its implicit arithmetic functions to
+ * be cdecl, even if -mrtd is specified.  This is somewhat
+ * inconsistent; for example, if -mregparm=3 is used then the implicit
+ * functions do become regparm(3).
+ *
+ * The implicit calls to memcpy() and memset() which gcc can generate
+ * do not seem to have this inconsistency; -mregparm and -mrtd affect
+ * them in the same way as any other function.
+ *
+ * Update (25/4/14): it appears that more recent gcc versions do allow
+ * -mrtd to affect calls to the implicit arithmetic functions.  There
+ * is nothing obvious in the gcc changelogs to indicate precisely when
+ * this happened.  From experimentation with available gcc versions,
+ * the change occurred sometime between v4.6.3 and v4.7.2.  We assume
+ * that only versions up to v4.6.x require the special treatment.
+ */
+#if ( __GNUC__ < 4 ) || ( ( __GNUC__ == 4 ) && ( __GNUC_MINOR__ <= 6 ) )
+#define __libgcc __attribute__ (( cdecl ))
+#else
+#define __libgcc
+#endif
+
+#endif /* ASSEMBLY */
+
+#endif /* _BITS_COMPILER_H */
diff --git a/roms/ipxe/src/arch/i386/include/bits/endian.h b/roms/ipxe/src/arch/i386/include/bits/endian.h
new file mode 100644
index 00000000..84188542
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/bits/endian.h
@@ -0,0 +1,8 @@
+#ifndef ETHERBOOT_BITS_ENDIAN_H
+#define ETHERBOOT_BITS_ENDIAN_H
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#define __BYTE_ORDER __LITTLE_ENDIAN
+
+#endif /* ETHERBOOT_BITS_ENDIAN_H */
diff --git a/roms/ipxe/src/arch/i386/include/bits/entropy.h b/roms/ipxe/src/arch/i386/include/bits/entropy.h
new file mode 100644
index 00000000..6dcceec6
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/bits/entropy.h
@@ -0,0 +1,14 @@
+#ifndef _BITS_ENTROPY_H
+#define _BITS_ENTROPY_H
+
+/** @file
+ *
+ * i386-specific entropy API implementations
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <ipxe/rtc_entropy.h>
+
+#endif /* _BITS_ENTROPY_H */
diff --git a/roms/ipxe/src/arch/i386/include/bits/linux_api.h b/roms/ipxe/src/arch/i386/include/bits/linux_api.h
new file mode 100644
index 00000000..dc6e7416
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/bits/linux_api.h
@@ -0,0 +1,6 @@
+#ifndef _I386_LINUX_API_H
+#define _I386_LINUX_API_H
+
+#define __SYSCALL_mmap __NR_mmap2
+
+#endif /* _I386_LINUX_API_H */
diff --git a/roms/ipxe/src/arch/i386/include/bits/nap.h b/roms/ipxe/src/arch/i386/include/bits/nap.h
new file mode 100644
index 00000000..64066e6a
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/bits/nap.h
@@ -0,0 +1,15 @@
+#ifndef _BITS_NAP_H
+#define _BITS_NAP_H
+
+/** @file
+ *
+ * i386-specific CPU sleeping API implementations
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <ipxe/bios_nap.h>
+#include <ipxe/efi/efix86_nap.h>
+
+#endif /* _BITS_MAP_H */
diff --git a/roms/ipxe/src/arch/i386/include/bits/profile.h b/roms/ipxe/src/arch/i386/include/bits/profile.h
new file mode 100644
index 00000000..f3ee54ae
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/bits/profile.h
@@ -0,0 +1,28 @@
+#ifndef _BITS_PROFILE_H
+#define _BITS_PROFILE_H
+
+/** @file
+ *
+ * Profiling
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdint.h>
+
+/**
+ * Get profiling timestamp
+ *
+ * @ret timestamp	Timestamp
+ */
+static inline __attribute__ (( always_inline )) uint64_t
+profile_timestamp ( void ) {
+	uint64_t tsc;
+
+	/* Read timestamp counter */
+	__asm__ __volatile__ ( "rdtsc" : "=A" ( tsc ) );
+	return tsc;
+}
+
+#endif /* _BITS_PROFILE_H */
diff --git a/roms/ipxe/src/arch/i386/include/bits/reboot.h b/roms/ipxe/src/arch/i386/include/bits/reboot.h
new file mode 100644
index 00000000..5b09e95f
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/bits/reboot.h
@@ -0,0 +1,14 @@
+#ifndef _BITS_REBOOT_H
+#define _BITS_REBOOT_H
+
+/** @file
+ *
+ * i386-specific reboot API implementations
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <ipxe/bios_reboot.h>
+
+#endif /* _BITS_REBOOT_H */
diff --git a/roms/ipxe/src/arch/i386/include/bits/sanboot.h b/roms/ipxe/src/arch/i386/include/bits/sanboot.h
new file mode 100644
index 00000000..9c77a4d4
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/bits/sanboot.h
@@ -0,0 +1,14 @@
+#ifndef _BITS_SANBOOT_H
+#define _BITS_SANBOOT_H
+
+/** @file
+ *
+ * i386-specific sanboot API implementations
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <ipxe/bios_sanboot.h>
+
+#endif /* _BITS_SANBOOT_H */
diff --git a/roms/ipxe/src/arch/i386/include/bits/smbios.h b/roms/ipxe/src/arch/i386/include/bits/smbios.h
new file mode 100644
index 00000000..cc79eec5
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/bits/smbios.h
@@ -0,0 +1,14 @@
+#ifndef _BITS_SMBIOS_H
+#define _BITS_SMBIOS_H
+
+/** @file
+ *
+ * i386-specific SMBIOS API implementations
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <ipxe/bios_smbios.h>
+
+#endif /* _BITS_SMBIOS_H */
diff --git a/roms/ipxe/src/arch/i386/include/bits/stdint.h b/roms/ipxe/src/arch/i386/include/bits/stdint.h
new file mode 100644
index 00000000..8edf1319
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/bits/stdint.h
@@ -0,0 +1,23 @@
+#ifndef _BITS_STDINT_H
+#define _BITS_STDINT_H
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+typedef __SIZE_TYPE__		size_t;
+typedef signed long		ssize_t;
+typedef signed long		off_t;
+
+typedef unsigned char		uint8_t;
+typedef unsigned short		uint16_t;
+typedef unsigned int		uint32_t;
+typedef unsigned long long	uint64_t;
+
+typedef signed char		int8_t;
+typedef signed short		int16_t;
+typedef signed int		int32_t;
+typedef signed long long	int64_t;
+
+typedef unsigned long		physaddr_t;
+typedef unsigned long		intptr_t;
+
+#endif /* _BITS_STDINT_H */
diff --git a/roms/ipxe/src/arch/i386/include/bits/strings.h b/roms/ipxe/src/arch/i386/include/bits/strings.h
new file mode 100644
index 00000000..092bcb59
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/bits/strings.h
@@ -0,0 +1,50 @@
+#ifndef _BITS_STRINGS_H
+#define _BITS_STRINGS_H
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+/**
+ * Find last (i.e. most significant) set bit
+ *
+ * @v value		Value
+ * @ret msb		Most significant bit set in value (LSB=1), or zero
+ */
+static inline __attribute__ (( always_inline )) int __flsl ( long value ) {
+	long msb_minus_one;
+
+	/* If the input value is zero, the BSR instruction returns
+	 * ZF=1 and leaves an undefined value in the output register.
+	 * Perform this check in C rather than asm so that it can be
+	 * omitted in cases where the compiler is able to prove that
+	 * the input is non-zero.
+	 */
+	if ( value ) {
+		__asm__ ( "bsrl %1, %0"
+			  : "=r" ( msb_minus_one )
+			  : "rm" ( value ) );
+		return ( msb_minus_one + 1 );
+	} else {
+		return 0;
+	}
+}
+
+/**
+ * Find last (i.e. most significant) set bit
+ *
+ * @v value		Value
+ * @ret msb		Most significant bit set in value (LSB=1), or zero
+ */
+static inline __attribute__ (( always_inline )) int __flsll ( long long value ){
+	unsigned long high = ( value >> 32 );
+	unsigned long low = ( value >> 0 );
+
+	if ( high ) {
+		return ( 32 + __flsl ( high ) );
+	} else if ( low ) {
+		return ( __flsl ( low ) );
+	} else {
+		return 0;
+	}
+}
+
+#endif /* _BITS_STRINGS_H */
diff --git a/roms/ipxe/src/arch/i386/include/bits/time.h b/roms/ipxe/src/arch/i386/include/bits/time.h
new file mode 100644
index 00000000..24dd020e
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/bits/time.h
@@ -0,0 +1,14 @@
+#ifndef _BITS_TIME_H
+#define _BITS_TIME_H
+
+/** @file
+ *
+ * i386-specific time API implementations
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <ipxe/rtc_time.h>
+
+#endif /* _BITS_TIME_H */
diff --git a/roms/ipxe/src/arch/i386/include/bits/timer.h b/roms/ipxe/src/arch/i386/include/bits/timer.h
new file mode 100644
index 00000000..50b676b7
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/bits/timer.h
@@ -0,0 +1,15 @@
+#ifndef _BITS_TIMER_H
+#define _BITS_TIMER_H
+
+/** @file
+ *
+ * i386-specific timer API implementations
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <ipxe/bios_timer.h>
+#include <ipxe/rdtsc_timer.h>
+
+#endif /* _BITS_TIMER_H */
diff --git a/roms/ipxe/src/arch/i386/include/bits/uaccess.h b/roms/ipxe/src/arch/i386/include/bits/uaccess.h
new file mode 100644
index 00000000..2bb52e02
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/bits/uaccess.h
@@ -0,0 +1,14 @@
+#ifndef _BITS_UACCESS_H
+#define _BITS_UACCESS_H
+
+/** @file
+ *
+ * i386-specific user access API implementations
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <librm.h>
+
+#endif /* _BITS_UACCESS_H */
diff --git a/roms/ipxe/src/arch/i386/include/bits/umalloc.h b/roms/ipxe/src/arch/i386/include/bits/umalloc.h
new file mode 100644
index 00000000..54fb006f
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/bits/umalloc.h
@@ -0,0 +1,14 @@
+#ifndef _BITS_UMALLOC_H
+#define _BITS_UMALLOC_H
+
+/** @file
+ *
+ * i386-specific user memory allocation API implementations
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <ipxe/memtop_umalloc.h>
+
+#endif /* _BITS_UMALLOC_H */