From: Avi Kivity <avi@redhat.com>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: kvm@vger.kernel.org, Andi Kleen <ak@linux.intel.com>
Subject: [PATCH 3/3] KVM: SVM: Make use of asm.h
Date: Sun, 16 Sep 2012 15:10:59 +0300 [thread overview]
Message-ID: <1347797459-7183-4-git-send-email-avi@redhat.com> (raw)
In-Reply-To: <1347797459-7183-1-git-send-email-avi@redhat.com>
Use macros for bitness-insensitive register names, instead of
rolling our own.
Signed-off-by: Avi Kivity <avi@redhat.com>
---
arch/x86/kvm/svm.c | 46 ++++++++++++++++++++--------------------------
1 file changed, 20 insertions(+), 26 deletions(-)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 611c728..818fceb 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -3782,12 +3782,6 @@ static void svm_cancel_injection(struct kvm_vcpu *vcpu)
svm_complete_interrupts(svm);
}
-#ifdef CONFIG_X86_64
-#define R "r"
-#else
-#define R "e"
-#endif
-
static void svm_vcpu_run(struct kvm_vcpu *vcpu)
{
struct vcpu_svm *svm = to_svm(vcpu);
@@ -3814,13 +3808,13 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
local_irq_enable();
asm volatile (
- "push %%"R"bp; \n\t"
- "mov %c[rbx](%[svm]), %%"R"bx \n\t"
- "mov %c[rcx](%[svm]), %%"R"cx \n\t"
- "mov %c[rdx](%[svm]), %%"R"dx \n\t"
- "mov %c[rsi](%[svm]), %%"R"si \n\t"
- "mov %c[rdi](%[svm]), %%"R"di \n\t"
- "mov %c[rbp](%[svm]), %%"R"bp \n\t"
+ "push %%" _ASM_BP "; \n\t"
+ "mov %c[rbx](%[svm]), %%" _ASM_BX " \n\t"
+ "mov %c[rcx](%[svm]), %%" _ASM_CX " \n\t"
+ "mov %c[rdx](%[svm]), %%" _ASM_DX " \n\t"
+ "mov %c[rsi](%[svm]), %%" _ASM_SI " \n\t"
+ "mov %c[rdi](%[svm]), %%" _ASM_DI " \n\t"
+ "mov %c[rbp](%[svm]), %%" _ASM_BP " \n\t"
#ifdef CONFIG_X86_64
"mov %c[r8](%[svm]), %%r8 \n\t"
"mov %c[r9](%[svm]), %%r9 \n\t"
@@ -3833,20 +3827,20 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
#endif
/* Enter guest mode */
- "push %%"R"ax \n\t"
- "mov %c[vmcb](%[svm]), %%"R"ax \n\t"
+ "push %%" _ASM_AX " \n\t"
+ "mov %c[vmcb](%[svm]), %%" _ASM_AX " \n\t"
__ex(SVM_VMLOAD) "\n\t"
__ex(SVM_VMRUN) "\n\t"
__ex(SVM_VMSAVE) "\n\t"
- "pop %%"R"ax \n\t"
+ "pop %%" _ASM_AX " \n\t"
/* Save guest registers, load host registers */
- "mov %%"R"bx, %c[rbx](%[svm]) \n\t"
- "mov %%"R"cx, %c[rcx](%[svm]) \n\t"
- "mov %%"R"dx, %c[rdx](%[svm]) \n\t"
- "mov %%"R"si, %c[rsi](%[svm]) \n\t"
- "mov %%"R"di, %c[rdi](%[svm]) \n\t"
- "mov %%"R"bp, %c[rbp](%[svm]) \n\t"
+ "mov %%" _ASM_BX ", %c[rbx](%[svm]) \n\t"
+ "mov %%" _ASM_CX ", %c[rcx](%[svm]) \n\t"
+ "mov %%" _ASM_DX ", %c[rdx](%[svm]) \n\t"
+ "mov %%" _ASM_SI ", %c[rsi](%[svm]) \n\t"
+ "mov %%" _ASM_DI ", %c[rdi](%[svm]) \n\t"
+ "mov %%" _ASM_BP ", %c[rbp](%[svm]) \n\t"
#ifdef CONFIG_X86_64
"mov %%r8, %c[r8](%[svm]) \n\t"
"mov %%r9, %c[r9](%[svm]) \n\t"
@@ -3857,7 +3851,7 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
"mov %%r14, %c[r14](%[svm]) \n\t"
"mov %%r15, %c[r15](%[svm]) \n\t"
#endif
- "pop %%"R"bp"
+ "pop %%" _ASM_BP
:
: [svm]"a"(svm),
[vmcb]"i"(offsetof(struct vcpu_svm, vmcb_pa)),
@@ -3878,9 +3872,11 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
[r15]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R15]))
#endif
: "cc", "memory"
- , R"bx", R"cx", R"dx", R"si", R"di"
#ifdef CONFIG_X86_64
+ , "rbx", "rcx", "rdx", "rsi", "rdi"
, "r8", "r9", "r10", "r11" , "r12", "r13", "r14", "r15"
+#else
+ , "ebx", "ecx", "edx", "esi", "edi"
#endif
);
@@ -3940,8 +3936,6 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
mark_all_clean(svm->vmcb);
}
-#undef R
-
static void svm_set_cr3(struct kvm_vcpu *vcpu, unsigned long root)
{
struct vcpu_svm *svm = to_svm(vcpu);
--
1.7.12
next prev parent reply other threads:[~2012-09-16 12:11 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-16 12:10 [PATCH 0/3] Prepare kvm for lto Avi Kivity
2012-09-16 12:10 ` [PATCH 1/3] KVM: VMX: Make lto-friendly Avi Kivity
2012-09-16 12:10 ` [PATCH 2/3] KVM: VMX: Make use of asm.h Avi Kivity
2012-09-16 12:10 ` Avi Kivity [this message]
2012-09-17 13:38 ` [PATCH 0/3] Prepare kvm for lto Marcelo Tosatti
-- strict thread matches above, loose matches on Subject: below --
2012-09-12 14:50 Avi Kivity
2012-09-12 14:50 ` [PATCH 3/3] KVM: SVM: Make use of asm.h Avi Kivity
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