From 2512522d49c0b42338cbc59f38083b81de0a3ed8 Mon Sep 17 00:00:00 2001
From: Zachary Amsden <zach@vmware.com>
Date: Fri, 6 Jan 2006 00:11:56 -0800
Subject: [PATCH] --- yaml --- r: 16375 b: refs/heads/master c:
 e6a9918c9617ed21f71f2f20b45efe06822c8f00 h: refs/heads/master i:   16373:
 a073e60a8ac266c61059e84e631b4a6b029e4891   16371:
 46387e49dc864b29a4023e66da19237ff90304c9   16367:
 2d5e057e812be99caf664003b3650eafb580e8c4 v: v3

---
 [refs]                                |  2 +-
 trunk/arch/i386/kernel/head.S         | 12 ++++++++----
 trunk/drivers/pnp/pnpbios/bioscalls.c | 15 ++++-----------
 3 files changed, 13 insertions(+), 16 deletions(-)

diff --git a/[refs] b/[refs]
index 40ba1de8a5d3..1f6a0796fe27 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5fe9fe3c6f9a1ae7aa224bb7a66eb9aad9e4abef
+refs/heads/master: e6a9918c9617ed21f71f2f20b45efe06822c8f00
diff --git a/trunk/arch/i386/kernel/head.S b/trunk/arch/i386/kernel/head.S
index 58d2746670b7..5884469f6bfe 100644
--- a/trunk/arch/i386/kernel/head.S
+++ b/trunk/arch/i386/kernel/head.S
@@ -504,10 +504,14 @@ ENTRY(cpu_gdt_table)
 	.quad 0x0000000000000000	/* 0x80 TSS descriptor */
 	.quad 0x0000000000000000	/* 0x88 LDT descriptor */
 
-	/* Segments used for calling PnP BIOS have byte granularity */
-	.quad 0x00409a0000000000	/* 0x90 32-bit code */
-	.quad 0x00009a0000000000	/* 0x98 16-bit code */
-	.quad 0x0000920000000000	/* 0xa0 16-bit data */
+	/*
+	 * Segments used for calling PnP BIOS have byte granularity.
+	 * They code segments and data segments have fixed 64k limits,
+	 * the transfer segment sizes are set at run time.
+	 */
+	.quad 0x00409a000000ffff	/* 0x90 32-bit code */
+	.quad 0x00009a000000ffff	/* 0x98 16-bit code */
+	.quad 0x000092000000ffff	/* 0xa0 16-bit data */
 	.quad 0x0000920000000000	/* 0xa8 16-bit data */
 	.quad 0x0000920000000000	/* 0xb0 16-bit data */
 
diff --git a/trunk/drivers/pnp/pnpbios/bioscalls.c b/trunk/drivers/pnp/pnpbios/bioscalls.c
index a72126180e97..a1f0b0ba2bfe 100644
--- a/trunk/drivers/pnp/pnpbios/bioscalls.c
+++ b/trunk/drivers/pnp/pnpbios/bioscalls.c
@@ -58,13 +58,6 @@ __asm__(
 	".previous		\n"
 );
 
-#define Q_SET_SEL(cpu, selname, address, size) \
-do { \
-struct desc_struct *gdt = get_cpu_gdt_table((cpu)); \
-set_base(gdt[(selname) >> 3], __va((u32)(address))); \
-set_limit(gdt[(selname) >> 3], size); \
-} while(0)
-
 #define Q2_SET_SEL(cpu, selname, address, size) \
 do { \
 struct desc_struct *gdt = get_cpu_gdt_table((cpu)); \
@@ -535,8 +528,8 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
   		struct desc_struct *gdt = get_cpu_gdt_table(i);
   		if (!gdt)
   			continue;
-		Q2_SET_SEL(i, PNP_CS32, &pnp_bios_callfunc, 64 * 1024);
-		Q_SET_SEL(i, PNP_CS16, header->fields.pm16cseg, 64 * 1024);
-		Q_SET_SEL(i, PNP_DS, header->fields.pm16dseg, 64 * 1024);
-	}
+ 		set_base(gdt[GDT_ENTRY_PNPBIOS_CS32], &pnp_bios_callfunc);
+ 		set_base(gdt[GDT_ENTRY_PNPBIOS_CS16], __va(header->fields.pm16cseg));
+ 		set_base(gdt[GDT_ENTRY_PNPBIOS_DS], __va(header->fields.pm16dseg));
+  	}
 }