Searched hist:ffc4bc9c (Results 1 – 2 of 2) sorted by relevance
/openbmc/linux/arch/x86/include/asm/ |
H A D | paravirt.h | ffc4bc9c Wed Apr 18 19:16:48 CDT 2012 H. Peter Anvin <hpa@zytor.com> x86, paravirt: Replace GET_CR2_INTO_RCX with GET_CR2_INTO_RAX
GET_CR2_INTO_RCX is asinine: it is only used in one place, the actual paravirt call returns the value in %rax, not %rcx; and the one place that wants it wants the result in %r9. We actually generate as a result of this call:
call ... movq %rax, %rcx xorq %rax, %rax /* this value isn't even used... */ movq %rcx, %r9
At least make the macro do what the paravirt call does, which is put the value into %rax.
Nevermind the fact that the macro clobbers all the volatile registers.
Signed-off-by: H. Peter Anvin <hpa@zytor.com> Link: http://lkml.kernel.org/r/1334794610-5546-4-git-send-email-hpa@zytor.com Cc: Glauber de Oliveira Costa <glommer@parallels.com> ffc4bc9c Wed Apr 18 19:16:48 CDT 2012 H. Peter Anvin <hpa@zytor.com> x86, paravirt: Replace GET_CR2_INTO_RCX with GET_CR2_INTO_RAX GET_CR2_INTO_RCX is asinine: it is only used in one place, the actual paravirt call returns the value in %rax, not %rcx; and the one place that wants it wants the result in %r9. We actually generate as a result of this call: call ... movq %rax, %rcx xorq %rax, %rax /* this value isn't even used... */ movq %rcx, %r9 At least make the macro do what the paravirt call does, which is put the value into %rax. Nevermind the fact that the macro clobbers all the volatile registers. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Link: http://lkml.kernel.org/r/1334794610-5546-4-git-send-email-hpa@zytor.com Cc: Glauber de Oliveira Costa <glommer@parallels.com>
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/openbmc/linux/arch/x86/kernel/ |
H A D | head_64.S | ffc4bc9c Wed Apr 18 19:16:48 CDT 2012 H. Peter Anvin <hpa@zytor.com> x86, paravirt: Replace GET_CR2_INTO_RCX with GET_CR2_INTO_RAX
GET_CR2_INTO_RCX is asinine: it is only used in one place, the actual paravirt call returns the value in %rax, not %rcx; and the one place that wants it wants the result in %r9. We actually generate as a result of this call:
call ... movq %rax, %rcx xorq %rax, %rax /* this value isn't even used... */ movq %rcx, %r9
At least make the macro do what the paravirt call does, which is put the value into %rax.
Nevermind the fact that the macro clobbers all the volatile registers.
Signed-off-by: H. Peter Anvin <hpa@zytor.com> Link: http://lkml.kernel.org/r/1334794610-5546-4-git-send-email-hpa@zytor.com Cc: Glauber de Oliveira Costa <glommer@parallels.com> ffc4bc9c Wed Apr 18 19:16:48 CDT 2012 H. Peter Anvin <hpa@zytor.com> x86, paravirt: Replace GET_CR2_INTO_RCX with GET_CR2_INTO_RAX GET_CR2_INTO_RCX is asinine: it is only used in one place, the actual paravirt call returns the value in %rax, not %rcx; and the one place that wants it wants the result in %r9. We actually generate as a result of this call: call ... movq %rax, %rcx xorq %rax, %rax /* this value isn't even used... */ movq %rcx, %r9 At least make the macro do what the paravirt call does, which is put the value into %rax. Nevermind the fact that the macro clobbers all the volatile registers. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Link: http://lkml.kernel.org/r/1334794610-5546-4-git-send-email-hpa@zytor.com Cc: Glauber de Oliveira Costa <glommer@parallels.com>
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