Merge "These changes are the raw update to qemu-2.6."

8 files changed, 65 insertions, 18 deletions

diff --git a/qemu/roms/seabios/vgasrc/Kconfig b/qemu/roms/seabios/vgasrc/Kconfig
index 91d590ae2..f5098a4bd 100644
--- a/qemu/roms/seabios/vgasrc/Kconfig
+++ b/qemu/roms/seabios/vgasrc/Kconfig
@@ -58,6 +58,25 @@ menu "VGA ROM"
     endchoice
 
     choice
+        depends on VGA_BOCHS
+        prompt "bochs vga variant"
+        default VGA_BOCHS_STDVGA
+
+        config VGA_BOCHS_STDVGA
+            bool "qemu stdvga / bochs svga"
+
+        config VGA_BOCHS_VMWARE
+            bool "qemu vmware svga"
+
+        config VGA_BOCHS_QXL
+            bool "qemu qxl vga"
+
+        config VGA_BOCHS_VIRTIO
+            bool "qemu virtio vga"
+
+    endchoice
+
+    choice
         depends on VGA_GEODEGX2 || VGA_GEODELX
         prompt "Output Mode"
         default VGA_OUTPUT_CRT
@@ -141,7 +160,10 @@ menu "VGA ROM"
         hex
         prompt "PCI Vendor ID" if OVERRIDE_PCI_ID
         default 0x1013 if VGA_CIRRUS
-        default 0x1234 if VGA_BOCHS
+        default 0x1234 if VGA_BOCHS_STDVGA
+        default 0x15ad if VGA_BOCHS_VMWARE
+        default 0x1b36 if VGA_BOCHS_QXL
+        default 0x1af4 if VGA_BOCHS_VIRTIO
         default 0x100b if VGA_GEODEGX2
         default 0x1022 if VGA_GEODELX
         default 0x0000
@@ -153,7 +175,10 @@ menu "VGA ROM"
         hex
         prompt "PCI Vendor ID" if OVERRIDE_PCI_ID
         default 0x00b8 if VGA_CIRRUS
-        default 0x1111 if VGA_BOCHS
+        default 0x1111 if VGA_BOCHS_STDVGA
+        default 0x0405 if VGA_BOCHS_VMWARE
+        default 0x0100 if VGA_BOCHS_QXL
+        default 0x1050 if VGA_BOCHS_VIRTIO
         default 0x0030 if VGA_GEODEGX2
         default 0x2081 if VGA_GEODELX
         default 0x0000
diff --git a/qemu/roms/seabios/vgasrc/geodevga.h b/qemu/roms/seabios/vgasrc/geodevga.h
index 61d78084d..c99f54bb1 100644
--- a/qemu/roms/seabios/vgasrc/geodevga.h
+++ b/qemu/roms/seabios/vgasrc/geodevga.h
@@ -2,7 +2,7 @@
 //
 // Copyright (C) 2009 Chris Kindt
 //
-// Writen for Google Summer of Code 2009 for the coreboot project
+// Written for Google Summer of Code 2009 for the coreboot project
 //
 // This file may be distributed under the terms of the GNU LGPLv3 license.
 
diff --git a/qemu/roms/seabios/vgasrc/vgabios.c b/qemu/roms/seabios/vgasrc/vgabios.c
index 4aa50e1c1..f07e85bd3 100644
--- a/qemu/roms/seabios/vgasrc/vgabios.c
+++ b/qemu/roms/seabios/vgasrc/vgabios.c
@@ -304,6 +304,12 @@ vga_set_mode(int mode, int flags)
         SET_BDA(video_mode, 0xff);
     SET_BDA_EXT(vbe_mode, mode | (flags & MF_VBEFLAGS));
     SET_BDA_EXT(vgamode_offset, (u32)vmode_g);
+    if (CONFIG_VGA_ALLOCATE_EXTRA_STACK)
+        // Disable extra stack if it appears a modern OS is in use.
+        // This works around bugs in some versions of Windows (Vista
+        // and possibly later) when the stack is in the e-segment.
+        MASK_BDA_EXT(flags, BF_EXTRA_STACK
+                     , (flags & MF_LEGACY) ? BF_EXTRA_STACK : 0);
     if (memmodel == MM_TEXT) {
         SET_BDA(video_cols, width);
         SET_BDA(video_rows, height-1);
diff --git a/qemu/roms/seabios/vgasrc/vgabios.h b/qemu/roms/seabios/vgasrc/vgabios.h
index fd796f2e6..831f69407 100644
--- a/qemu/roms/seabios/vgasrc/vgabios.h
+++ b/qemu/roms/seabios/vgasrc/vgabios.h
@@ -62,7 +62,8 @@ struct gfx_op {
 #define GO_MEMSET  3
 #define GO_MEMMOVE 4
 
-// Custom internal storage in BDA
+// Custom internal storage in BDA (don't change here without also
+// updating vgaentry.S)
 #define VGA_CUSTOM_BDA 0xb9
 
 struct vga_bda_s {
@@ -74,6 +75,7 @@ struct vga_bda_s {
 #define BF_PM_MASK      0x0f
 #define BF_EMULATE_TEXT 0x10
 #define BF_SWCURSOR     0x20
+#define BF_EXTRA_STACK  0x40
 
 #define GET_BDA_EXT(var) \
     GET_FARVAR(SEG_BDA, ((struct vga_bda_s *)VGA_CUSTOM_BDA)->var)
diff --git a/qemu/roms/seabios/vgasrc/vgaentry.S b/qemu/roms/seabios/vgasrc/vgaentry.S
index d9ebdb93c..53be2b38c 100644
--- a/qemu/roms/seabios/vgasrc/vgaentry.S
+++ b/qemu/roms/seabios/vgasrc/vgaentry.S
@@ -86,14 +86,23 @@ entry_10:
         ENTRY_ARG_VGA handle_10
         iretw
 
+#define VGA_CUSTOM_BDA_FLAGS 0xb9
+#define BF_EXTRA_STACK 0x40
+
         // Entry point using extra stack
         DECLFUNC entry_10_extrastack
 entry_10_extrastack:
         cli
         cld
-        pushw %ds               // Set %ds:%eax to space on ExtraStack
+        pushw %ds
         pushl %eax
-        movw %cs:ExtraStackSeg, %ds
+
+        movw $SEG_BDA, %ax      // Check if extra stack is enabled
+        movw %ax, %ds
+        testb $BF_EXTRA_STACK, VGA_CUSTOM_BDA_FLAGS
+        jz 1f
+
+        movw %cs:ExtraStackSeg, %ds // Set %ds:%eax to space on ExtraStack
         movl $(CONFIG_VGA_EXTRA_STACK_SIZE-PUSHBREGS_size-16), %eax
         SAVEBREGS_POP_DSEAX     // Save registers on extra stack
         movl %esp, PUSHBREGS_size+8(%eax)
@@ -116,6 +125,11 @@ entry_10_extrastack:
         RESTOREBREGS_DSEAX
         iretw
 
+1:      // Use regular entry point if the extra stack is disabled
+        popl %eax
+        popw %ds
+        jmp entry_10
+
         // Timer irq handling
         DECLFUNC entry_timer_hook
 entry_timer_hook:
diff --git a/qemu/roms/seabios/vgasrc/vgafb.c b/qemu/roms/seabios/vgasrc/vgafb.c
index 1a94fcf70..5d1ecc936 100644
--- a/qemu/roms/seabios/vgasrc/vgafb.c
+++ b/qemu/roms/seabios/vgasrc/vgafb.c
@@ -273,28 +273,22 @@ gfx_direct(struct gfx_op *op)
     int bypp = DIV_ROUND_UP(depth, 8);
     void *dest_far = (fb + op->displaystart + op->y * op->linelength
                       + op->x * bypp);
+    u8 data[64];
+    int i;
     switch (op->op) {
     default:
-    case GO_READ8: {
-        u8 data[64];
+    case GO_READ8:
         memcpy_high(MAKE_FLATPTR(GET_SEG(SS), data), dest_far, bypp * 8);
-        int i;
         for (i=0; i<8; i++)
             op->pixels[i] = reverse_color(depth, *(u32*)&data[i*bypp]);
         break;
-    }
-    case GO_WRITE8: {
-        u8 data[64];
-        int i;
+    case GO_WRITE8:
         for (i=0; i<8; i++)
             *(u32*)&data[i*bypp] = get_color(depth, op->pixels[i]);
         memcpy_high(dest_far, MAKE_FLATPTR(GET_SEG(SS), data), bypp * 8);
         break;
-    }
-    case GO_MEMSET: {
+    case GO_MEMSET: ;
         u32 color = get_color(depth, op->pixels[0]);
-        u8 data[64];
-        int i;
         for (i=0; i<8; i++)
             *(u32*)&data[i*bypp] = color;
         memcpy_high(dest_far, MAKE_FLATPTR(GET_SEG(SS), data), bypp * 8);
@@ -303,7 +297,6 @@ gfx_direct(struct gfx_op *op)
             memcpy_high(dest_far + op->linelength * i
                         , dest_far, op->xlen * bypp);
         break;
-    }
     case GO_MEMMOVE: ;
         void *src_far = (fb + op->displaystart + op->srcy * op->linelength
                          + op->x * bypp);
diff --git a/qemu/roms/seabios/vgasrc/vgainit.c b/qemu/roms/seabios/vgasrc/vgainit.c
index 8d1226182..40997dbbd 100644
--- a/qemu/roms/seabios/vgasrc/vgainit.c
+++ b/qemu/roms/seabios/vgasrc/vgainit.c
@@ -150,6 +150,7 @@ vga_post(struct bregs *regs)
 {
     serial_debug_preinit();
     dprintf(1, "Start SeaVGABIOS (version %s)\n", VERSION);
+    dprintf(1, "VGABUILD: %s\n", BUILDINFO);
     debug_enter(regs, DEBUG_VGA_POST);
 
     if (CONFIG_VGA_PCI && !GET_GLOBAL(HaveRunInit)) {
diff --git a/qemu/roms/seabios/vgasrc/vgaversion.c b/qemu/roms/seabios/vgasrc/vgaversion.c
new file mode 100644
index 000000000..1ef5ddb79
--- /dev/null
+++ b/qemu/roms/seabios/vgasrc/vgaversion.c
@@ -0,0 +1,6 @@
+// Place build generated version into a C variable
+#include "autovgaversion.h"
+#include "types.h"
+
+char VERSION[] VAR16 = BUILD_VERSION;
+char BUILDINFO[] VAR16 = BUILD_TOOLS;