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x86, pvops: Remove hooks for {rd,wr}msr_safe_regs

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There were paravirt_ops hooks for the full register set variant of
{rd,wr}msr_safe which are actually not used by anyone anymore. Remove
them to make the code cleaner and avoid silent breakages when the pvops
members were uninitialized. This has been boot-tested natively and under
Xen with PVOPS enabled and disabled on one machine.

Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Link: http://lkml.kernel.org/r/1338562358-28182-2-git-send-email-bp@amd64.org
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Andre Przywara
2012-06-01 16:52:35 +02:00
committed by H. Peter Anvin
parent f8f5701bda
commit 1f975f78c8
7 changed files with 35 additions and 91 deletions
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10
arch/x86/lib/msr-reg.S
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@@ -6,13 +6,13 @@
#ifdef CONFIG_X86_64
/*
* int native_{rdmsr,wrmsr}_safe_regs(u32 gprs[8]);
* int {rdmsr,wrmsr}_safe_regs(u32 gprs[8]);
*
* reg layout: u32 gprs[eax, ecx, edx, ebx, esp, ebp, esi, edi]
*
*/
.macro op_safe_regs op
ENTRY(native_\op\()_safe_regs)
ENTRY(\op\()_safe_regs)
CFI_STARTPROC
pushq_cfi %rbx
pushq_cfi %rbp
@@ -45,13 +45,13 @@ ENTRY(native_\op\()_safe_regs)
_ASM_EXTABLE(1b, 3b)
CFI_ENDPROC
ENDPROC(native_\op\()_safe_regs)
ENDPROC(\op\()_safe_regs)
.endm
#else /* X86_32 */
.macro op_safe_regs op
ENTRY(native_\op\()_safe_regs)
ENTRY(\op\()_safe_regs)
CFI_STARTPROC
pushl_cfi %ebx
pushl_cfi %ebp
@@ -92,7 +92,7 @@ ENTRY(native_\op\()_safe_regs)
_ASM_EXTABLE(1b, 3b)
CFI_ENDPROC
ENDPROC(native_\op\()_safe_regs)
ENDPROC(\op\()_safe_regs)
.endm
#endif