From: Zachary Amsden <zach@vmware.com>
To: Linus Torvalds <torvalds@osdl.org>,
Jeffrey Sheldon <jeffshel@vmware.com>,
Ole Agesen <agesen@vmware.com>, Shai Fultheim <shai@scalex86.org>,
Andrew Morton <akpm@odsl.org>, Jack Lo <jlo@vmware.com>,
Ingo Molnar <mingo@elte.hu>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Virtualization Mailing List <virtualization@lists.osdl.org>,
Chris Wright <chrisw@osdl.org>, Martin Bligh <mbligh@mbligh.org>,
Pratap Subrahmanyam <pratap@vmware.com>,
Christopher Li <chrisl@vmware.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Zwane Mwaikambo <zwane@arm.linux.org.uk>, Andi Kleen <ak@muc.de>,
Zachary Amsden <zach@vmware.com>
Subject: [PATCH 1/3] Gdt page isolation fix
Date: Wed, 28 Sep 2005 14:42:09 -0700 [thread overview]
Message-ID: <200509282142.j8SLg9Z8032224@zach-dev.vmware.com> (raw)
Andrew Morton's fix for PnP BIOS.
Signed-off-by: Zachary Amsden <zach@vmware.com>
Index: linux-2.6.14-rc1/drivers/pnp/pnpbios/bioscalls.c
===================================================================
--- linux-2.6.14-rc1.orig/drivers/pnp/pnpbios/bioscalls.c 2005-08-28 16:41:01.000000000 -0700
+++ linux-2.6.14-rc1/drivers/pnp/pnpbios/bioscalls.c 2005-09-28 13:13:42.000000000 -0700
@@ -69,14 +69,14 @@ __asm__(
#define Q_SET_SEL(cpu, selname, address, size) \
do { \
-set_base(per_cpu(cpu_gdt_table,cpu)[(selname) >> 3], __va((u32)(address))); \
-set_limit(per_cpu(cpu_gdt_table,cpu)[(selname) >> 3], size); \
+set_base(get_cpu_gdt_table(cpu)[(selname) >> 3], __va((u32)(address))); \
+set_limit(get_cpu_gdt_table(cpu)[(selname) >> 3], size); \
} while(0)
#define Q2_SET_SEL(cpu, selname, address, size) \
do { \
-set_base(per_cpu(cpu_gdt_table,cpu)[(selname) >> 3], (u32)(address)); \
-set_limit(per_cpu(cpu_gdt_table,cpu)[(selname) >> 3], size); \
+set_base(get_cpu_gdt_table(cpu)[(selname) >> 3], (u32)(address)); \
+set_limit(get_cpu_gdt_table(cpu)[(selname) >> 3], size); \
} while(0)
static struct desc_struct bad_bios_desc = { 0, 0x00409200 };
@@ -115,8 +115,8 @@ static inline u16 call_pnp_bios(u16 func
return PNP_FUNCTION_NOT_SUPPORTED;
cpu = get_cpu();
- save_desc_40 = per_cpu(cpu_gdt_table,cpu)[0x40 / 8];
- per_cpu(cpu_gdt_table,cpu)[0x40 / 8] = bad_bios_desc;
+ save_desc_40 = get_cpu_gdt_table(cpu)[0x40 / 8];
+ get_cpu_gdt_table(cpu)[0x40 / 8] = bad_bios_desc;
/* On some boxes IRQ's during PnP BIOS calls are deadly. */
spin_lock_irqsave(&pnp_bios_lock, flags);
@@ -158,7 +158,7 @@ static inline u16 call_pnp_bios(u16 func
);
spin_unlock_irqrestore(&pnp_bios_lock, flags);
- per_cpu(cpu_gdt_table,cpu)[0x40 / 8] = save_desc_40;
+ get_cpu_gdt_table(cpu)[0x40 / 8] = save_desc_40;
put_cpu();
/* If we get here and this is set then the PnP BIOS faulted on us. */
reply other threads:[~2005-09-28 21:42 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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