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x86: rename the struct pt_regs members for 32/64-bit consistency

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We have a lot of code which differs only by the naming of specific
members of structures that contain registers.  In order to enable
additional unifications, this patch drops the e- or r- size prefix
from the register names in struct pt_regs, and drops the x- prefixes
for segment registers on the 32-bit side.

This patch also performs the equivalent renames in some additional
places that might be candidates for unification in the future.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
H. Peter Anvin
2008-01-30 13:30:56 +01:00
committed by Ingo Molnar
parent 53756d3722
commit 65ea5b0349
54 changed files with 953 additions and 902 deletions
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22
arch/x86/lguest/boot.c
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@@ -175,8 +175,8 @@ static void lguest_leave_lazy_mode(void)
* check there when it wants to deliver an interrupt.
*/
/* save_flags() is expected to return the processor state (ie. "eflags"). The
* eflags word contains all kind of stuff, but in practice Linux only cares
/* save_flags() is expected to return the processor state (ie. "flags"). The
* flags word contains all kind of stuff, but in practice Linux only cares
* about the interrupt flag. Our "save_flags()" just returns that. */
static unsigned long save_fl(void)
{
@@ -323,30 +323,30 @@ static void lguest_load_tr_desc(void)
* anyone (including userspace) can just use the raw "cpuid" instruction and
* the Host won't even notice since it isn't privileged. So we try not to get
* too worked up about it. */
static void lguest_cpuid(unsigned int *eax, unsigned int *ebx,
unsigned int *ecx, unsigned int *edx)
static void lguest_cpuid(unsigned int *ax, unsigned int *bx,
unsigned int *cx, unsigned int *dx)
{
int function = *eax;
int function = *ax;
native_cpuid(eax, ebx, ecx, edx);
native_cpuid(ax, bx, cx, dx);
switch (function) {
case 1: /* Basic feature request. */
/* We only allow kernel to see SSE3, CMPXCHG16B and SSSE3 */
*ecx &= 0x00002201;
*cx &= 0x00002201;
/* SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, FPU. */
*edx &= 0x07808101;
*dx &= 0x07808101;
/* The Host can do a nice optimization if it knows that the
* kernel mappings (addresses above 0xC0000000 or whatever
* PAGE_OFFSET is set to) haven't changed. But Linux calls
* flush_tlb_user() for both user and kernel mappings unless
* the Page Global Enable (PGE) feature bit is set. */
*edx |= 0x00002000;
*dx |= 0x00002000;
break;
case 0x80000000:
/* Futureproof this a little: if they ask how much extended
* processor information there is, limit it to known fields. */
if (*eax > 0x80000008)
*eax = 0x80000008;
if (*ax > 0x80000008)
*ax = 0x80000008;
break;
}
}